tedds engineering library (au)

TEDDS 12.0 Engineering Library - Australia

Page 1 of 34

TEDDS 12.0

Engineering Library

Australia


Page 2 of 34

New calculations (TEDDS 12) ........................................................................................................................................................ 4

Seismic loads (AS1170.4-2007) ................................................................................................................................................. 4

Retaining wall analysis & design (AS4678-2002) ....................................................................................................................... 4

Steel beam analysis & design (AS4100) ..................................................................................................................................... 4

RC beam analysis & design (AS3600) ........................................................................................................................................ 5

Tilt-up wall panel design (AS3600-2001) .................................................................................................................................... 6

Pad footing analysis & design (AS3600-2001) ............................................................................................................................ 7

Strip footing analysis & design (AS3600-2001) ........................................................................................................................... 7

Rigid diaphragm force distribution............................................................................................................................................... 7

Analysis .......................................................................................................................................................................................... 8

Beam analysis ............................................................................................................................................................................ 8

Concrete sub-frame analysis ...................................................................................................................................................... 9

Rolling load analysis ................................................................................................................................................................... 9

Simple beam analysis ................................................................................................................................................................. 9

Concrete ....................................................................................................................................................................................... 10

Pad footing analysis & design (AS3600-2001) .......................................................................................................................... 10

RC beam deflection (AS3600) .................................................................................................................................................. 10

RC beam analysis & design (AS3600) ...................................................................................................................................... 11

RC circular column design (AS3600-2001) ............................................................................................................................... 11

RC column design (AS3600) .................................................................................................................................................... 12

RC corbel design (AS3600-2001) ............................................................................................................................................. 13

RC slab design (AS3600) ......................................................................................................................................................... 13

RC wall design (AS3600-2001) ................................................................................................................................................. 14

Retaining wall analysis & design (AS4678-2002) ..................................................................................................................... 15

Strip footing analysis & design (AS3600-2001) ......................................................................................................................... 16

Tilt-up wall panel design (AS3600-2001) .................................................................................................................................. 17

Wall strip footing design (AS3600) ............................................................................................................................................ 18

Drainage ....................................................................................................................................................................................... 19

Drain & sewer design ................................................................................................................................................................ 19

Open channel flow calculation .................................................................................................................................................. 19

Foundations .................................................................................................................................................................................. 20

Base plate design (AS4100-1998) ............................................................................................................................................ 20

Pad footing analysis & design (AS3600-2001) .......................................................................................................................... 20

Pile group analysis .................................................................................................................................................................... 21

Strip footing analysis & design (AS3600-2001) ......................................................................................................................... 21

Wall strip footing design (AS3600) ............................................................................................................................................ 22

Highway alignment ....................................................................................................................................................................... 23

Horizontal curve design ............................................................................................................................................................ 23

Vertical curve design ................................................................................................................................................................. 23

Loading ......................................................................................................................................................................................... 24

Aerodynamic shape factor (AS1170.2-2002) ............................................................................................................................ 24

Basic wind loading (1170.2) ...................................................................................................................................................... 24

Column load chase down (AS1170.1-2002) ............................................................................................................................. 24

Comprehensive wind loading (1170.2) ...................................................................................................................................... 25

Dead load calculation ................................................................................................................................................................ 25

Hipped end loading ................................................................................................................................................................... 26

Notional load chase down (AS4100-1998) ................................................................................................................................ 26

Seismic loads (AS1170.4-2007) ............................................................................................................................................... 26

Wall load chase down (AS1170.1-2002) ................................................................................................................................... 27

Wind pressure coefficients (1170.2).......................................................................................................................................... 27

Miscellaneous ............................................................................................................................................................................... 28

Co-ordinate conversion calculation ........................................................................................................................................... 28


Page 3 of 34

Pile group analysis .................................................................................................................................................................... 28

Rigid diaphragm force distribution............................................................................................................................................. 28

Retaining walls ............................................................................................................................................................................. 29

Retaining wall analysis & design (AS4678-2002) ..................................................................................................................... 29

Section properties ........................................................................................................................................................................ 30

Compound section properties ................................................................................................................................................... 30

Section properties calculator ..................................................................................................................................................... 30

Steel ............................................................................................................................................................................................. 31

Base plate design (AS4100-1998) ............................................................................................................................................ 31

Bolt group analysis.................................................................................................................................................................... 31

Moment connection design (AS4100-1998) .............................................................................................................................. 32

Simple connection design (AS4100-1998) ................................................................................................................................ 33

Steel beam analysis & design (AS4100) ................................................................................................................................... 33

Timber .......................................................................................................................................................................................... 34

Timber design (AS1720.1-1997) ............................................................................................................................................... 34


Page 4 of 34

NEW CALCULATIONS (TEDDS 12) SEISMIC LOADS (AS1170.4-2007)

This calculation determines earthquake actions on building structures as detailed in AS 1170.4-2007 Part 4: Earthquake actions in Australia.

Domestic structures are also covered and the racking loads determined when applicable.

RETAINING WALL ANALYSIS & DESIGN (AS4678-2002)

The calculations check the stability of a retaining wall which may feature a sloped or stepped back or face with or without a downstand, either propped or unpropped, against sliding and determines the maximum and minimum base pressures beneath the wall.

The reinforced concrete design calculations allow the design of the retaining wall toe, heel, downstand and stem for bending and shear as appropriate.

Soil and surcharge pressures acting on the wall can be calculated using either the Coulomb or Rankine theory. In addition the calculation allows for water pressure behind the wall if appropriate.

The calculations use the following Codes of Practice, as appropriate:-

AS 4678-2002 - Earth-retaining structures

AS 3600-2001 - Concrete structures

tbase

dds

SurchargeW

Base material

Saturatedretainedmaterial

Water level

dcover

Moist retainedmaterial

dexc

Virtualback of wall

Depth of excavation

Wall

Heel

l toe l heeltwall

l base

tds

Toe

Downstand

hst

em

hw

ater

hw

all hef

f

STEEL BEAM ANALYSIS & DESIGN (AS4100)

From Australian Standard AS4100: Steel structures.

These calculations check the design of rolled and welded I and H sections, rolled channel sections, rolled T sections, rolled rectangular hollow sections and rolled circular hollow sections subject to major axis bending, shear and axial tension or compression.

The design and analysis calculation is fully integrated with the TEDDS continuous beam analysis module allowing analysis of beams of up to 10 spans with up to 20 loads per span, 20 loads per support, 8 different load cases and 20 load combinations.

The beam section is designed for worst case applied moment, shear, compression or tension and deflection across all beam spans.

The design only calculation allows you to design a single section based on defined values for bending moment, axial compression or tension, and shear force.


Page 5 of 34

RC BEAM ANALYSIS & DESIGN (AS3600)

From Australian Standard AS 3600-2001.

These calculations check the design of reinforced concrete beams of rectangular or flanged cross-section.


The calculation includes a moment redistribution option.

The beam section may be designed at the middle of each span and at each support.

The beam section is designed for applied bending and shear, further calculations check the reinforcement spacing, crack widths and deflection of the beam.

The design only calculation allows you to design a single section based on defined values for bending moment and shear force.

h

Rectangular section

d h

b

Flanged section

d

beff

heff

b


Page 6 of 34

TILT-UP WALL PANEL DESIGN (AS3600-2001)

Calculation to design a reinforced concrete tilt-up panel with up to two openings (doors or windows) in accordance with AS3600-2001 and ACI 318.

The panel is check designed for both the lifting sequence (assuming uncracked) and for in-position (assuming cracked) for relevant dead, live, wind and seismic loads. Vertical loads may be applied to the top of the clear height of the panel and may be located eccentric to the centreline thus inducing bending moments into the panel. Lateral wind or seismic loads may also be applied resulting in further bending moments.

Secondary bending moments resulting from P- effects are accounted for using section 14.8 of the US reinforced concrete code ACI 318.

The analysis of the lifting condition is calculated using a static deterministic method for a single or a two point lift. Design moments and shears are determined for any number of specified angles of lift.

W

Ldoor

Lwindow

Hwu

LoadLoad

Tilt-up wall panel calculation

Ddoor

Dwindow

Hwindow

Eccentricity

Lw

Loads

Side view

Footing

Strip Strip

Tributary width Tributary width Tributary widthHp

Hwu


Page 7 of 34

PAD FOOTING ANALYSIS & DESIGN (AS3600-2001)

The calculations are in accordance with AS3600-2001 Concrete Structures.

The calculations check the design of a pad footing in reinforced concrete.

The footing may be subjected to axial and horizontal loads and moments as indicated in the sketch below.

PPA

B

HyB

HxBHyAHxA

MyA MxAMyB MxB

The calculations check the stability of the base with regard to uplift, sliding and overturning. They also check the maximum and minimum base pressures.

The reinforced concrete design calculations check the design of the base in bending and shear as appropriate.

STRIP FOOTING ANALYSIS & DESIGN (AS3600-2001)


The calculations check the design of a strip footing in reinforced concrete.


MP

H



RIGID DIAPHRAGM FORCE DISTRIBUTION

Calculation for the distribution of lateral forces through a rigid diaphragm into lateral force resisting elements that supports the diaphragm.

Lateral force resisting elements include columns (steel or concrete), braced bays (steel), individual shear walls and other elements.

Calculation checks summation of all direct forces and torsional shear forces.


Page 8 of 34

ANALYSIS BEAM ANALYSIS

These calculations analyse any beam arrangement up to 10 spans. The analysis is suitable for simple beams and continuous beams.

The loading types available are point load, UDL, VDL, trapezoidal loading, partial UDL and point couple. The support conditions available are fixed, pinned or spring. There are 8 user-definable load cases and 20 user-definable load combinations.


Page 9 of 34

CONCRETE SUB-FRAME ANALYSIS

These calculations consider a simplified sub-frame consisting only of a beam, the columns attached to the ends of the beam and the beams on either side.

The calculations firstly determine the geometry of the three spans (including area and second moment of area), the stiffness of the end beams is modelled by applying a stiffness factor to the second moment of area (the fixity of the beam remote ends determine the stiffness of the beams on either side of the central beam). The calculations use the sub-frame geometry and properties within the continuous beam analysis program, where the loads can be added in order to determine the design shear force and moment. These forces can then be optionally used in the RC beam design calculations, to design span 2 (the central beam).

The size and stiffness of the columns are translated into vertical and rotational spring stiffnesses for the supports used in the continuous beam. The moments generated in the supports are then used to determine the moments in the columns of the sub-frame.

Ls1

Ls2

Ls3

L

L

LB_upper C_upper

C_lowerLB_lower

Col B Col C

Beam to be designed

Span 1 Span 2 Span 3

SIMPLIFIED SUBFRAME

D

h hB C

(all sections b wide)

ROLLING LOAD ANALYSIS

Rolling load analysis on a continuous steel beam with up to 10 spans. Load train comprising up to 10-point loads.

Length of each span, and size and spacing of point loads are defined individually.

SIMPLE BEAM ANALYSIS

The elastic analysis and design of simple beams including:

o Simple beam under dead and live UDL

o Simple secondary beams under combination of various UDL loads

o Simple primary beams under dead and live UDL plus up to 3-point loads

o Steel, concrete, timber or other properties can be considered

Calculation of design values including moments at quarter points

+ve Sign Conventions

deflection

reaction

loads

Lxa b

P

R

P P

w


Page 10 of 34

CONCRETE PAD FOOTING ANALYSIS & DESIGN (AS3600-2001)




PPA

B

HyB

HxBHyAHxA

MyA MxAMyB MxB



RC BEAM DEFLECTION (AS3600)

Determines the effective second moment of area in accordance with AS 3600 clause 8.5.3. It can also calculate deflections for simply supported beams or allows the user to input computed deflections to check against allowable span/deflection ratios.


Page 11 of 34

RC BEAM ANALYSIS & DESIGN (AS3600)

From Australian Standard AS 3600-2001.

These calculations check the design of reinforced concrete beams of rectangular or flanged cross-section.


The calculation includes a moment redistribution option.

The beam section may be designed at the middle of each span and at each support.

The beam section is designed for applied bending and shear, further calculations check the reinforcement spacing, crack widths and deflection of the beam.

The design only calculation allows you to design a single section based on defined values for bending moment and shear force.

h

Rectangular section

d h

b

Flanged section

d

beff

heff

b

RC CIRCULAR COLUMN DESIGN (AS3600-2001)

Concrete structures (AS 3600-2001).

Handbook of reinforced concrete design in accordance with AS 3600-2001 by cement and concrete association of Australia.

Calculation for the design of braced or unbraced and slender or short symmetrically reinforced solid circular column subjected to axial load and / or uniaxial bending as per AS 3600-2001.

D

c

Major

Axis

Minor Axis

do

Ast

Asc

X

Y

X

Y

d'

Tie


Page 12 of 34

RC COLUMN DESIGN (AS3600)

AS 3600 - Concrete structures.

These calculations work out the cross-section strength of reinforced concrete columns subject to combined axial force and bending moment.

The calculations focus on the detail of main (longitudinal) reinforcement. The reinforcement must consist of deformed bars with a rib geometry that provides adequate bond.

This calculation does not cover the calculation of design action effects, however, these effects calculated at critical sections need to be compared to the axial force and bending strengths determined using the methods in this calculation.

The design rules utilized are based on considerations of equilibrium and strain compatibility (plane sections remain plane after bending) to determine the load and moment strength.

The column cross sections are doubly symmetric.

The stress-strain curves for both the steel and concrete are assumed to be of a form defined by recognised simplified equations.

A simple rectangular stress block of 0.85f'c is used for the concrete at strength limit state subject to the limitations of clause 10.6.2 of AS 3600-2001, and the steel is assumed to be linear elastic-plastic in nature with a constant yield stress.

The calculation determines the four key points on the load-moment strength interaction diagram.

d

do

Moment

Axia

l lo

ad

do

cu

kuodo

cu

sy

kud

cu

Nuo

Mul, Nul

Mud, Nud

Muo

To determine the first point of the diagram, the condition of pure bending, the calculation uses an iterative process. The depth to the neutral axis, kud, is entered as a finite value and varied until the value Nu is zero (this is equivalent to C=T).


Page 13 of 34

RC CORBEL DESIGN (AS3600-2001)

AS 3600-2001 - Concrete structures.

Design of RC corbel for factored vertical load and factored horizontal force.

Vf

Nf

Framing

bar

Main

tension

bar

Closed

stirrup

Bearing

plate

RC SLAB DESIGN (AS3600)

From AS3600 Concrete structures incorporating Amendment Nos. 1 and 2.

This calculation carries out the design of one or two way spanning slabs. It performs bending, ductility and shear checks and determines the minimum reinforcement required to control cracking due to shrinkage and temperature effects in accordance with clause 9.4.3. For the case of one way spanning slabs upto eight spans can be specified.

Bending moments and shear forces may be calculated using the simplified methods given in clauses 7.2 and 7.3 or alternatively they may be input directly from an independent analysis.

Punching shear check with or without moment transfer may be included.

Deemed to comply span-to-depth deflection check in accordance with clause 9.3.4 for either one or two way spanning slabs may be included.


Page 14 of 34

RC WALL DESIGN (AS3600-2001)

Concrete structures (AS 3600-2001).

Handbook of reinforced concrete design in accordance with AS 3600-2001 by cement and concrete association of Australia.

Calculations are performed for the design of wall for solid rectangular section, reinforced at one face or both the faces.

Ast_v

Sectional top view of wall

(single layer reinforcement)

Major

Axisx

Ast_h d

t

d'

t

x

cc

sv

Ast_v

Sectional top view of wall

(double layer reinforcement)

Major

Axisx

Ast_h dt

d'

t

x

cc

cc

sv


Page 15 of 34

RETAINING WALL ANALYSIS & DESIGN (AS4678-2002)







tbase

dds

SurchargeW

Base material


Water level

dcover


dexc

Virtualback of wall

Depth of excavation

Wall

Heel

l toe l heeltwall

l base

tds

Toe

Downstand

hst

em

hw

ater

hw

all hef

f


Page 16 of 34





MP

H




Page 17 of 34

TILT-UP WALL PANEL DESIGN (AS3600-2001)

Calculation to design a reinforced concrete tilt-up panel with up to two openings (doors or windows) in accordance with AS3600-2001 and ACI 318.

The panel is check designed for both the lifting sequence (assuming uncracked) and for in-position (assuming cracked) for relevant dead, live, wind and seismic loads. Vertical loads may be applied to the top of the clear height of the panel and may be located eccentric to the centreline thus inducing bending moments into the panel. Lateral wind or seismic loads may also be applied resulting in further bending moments.

Secondary bending moments resulting from P- effects are accounted for using section 14.8 of the US reinforced concrete code ACI 318.

The analysis of the lifting condition is calculated using a static deterministic method for a single or a two point lift. Design moments and shears are determined for any number of specified angles of lift.

W

Ldoor

Lwindow

Hwu

LoadLoad

Tilt-up wall panel calculation

Ddoor

Dwindow

Hwindow

Eccentricity

Lw

Loads

Side view

Footing

Strip Strip

Tributary width Tributary width Tributary widthHp

Hwu


Page 18 of 34

WALL STRIP FOOTING DESIGN (AS3600)

These calculations start from an applied load per metre run and an allowable bearing pressure, and determine the minimum foundation width required to keep the net bearing pressure below the permissible bearing pressure.

For mass concrete foundations, the calculations check that the spread of the load in the footing is >45 degrees and hence an un-reinforced solution is adequate.

For reinforced footings the calculations calculate the shear and moment at the face of the wall and calculate the minimum reinforcement required for the base.

The calculations require that the wall type (internal, party or cavity) is selected. This wall type is only relevant if a wall load chase down calculation has been run before this calculation. The correct loads will be picked up automatically in this instance if the same wall type is selected.

Refer to the Explanation of this set for more detail.

b

d

h

t

s

Wall

Mass Concrete Foundation

w

w

w

Note:- The variables with subscript 'w' will have an additional i,c or p subscript representinginternal, cavity or party walls respectively

Reinforced Foundation

Wall

c

ult

s

t

h

d

d

Pb

w

w

w

w

w



Page 19 of 34

DRAINAGE DRAIN & SEWER DESIGN

These calculations allow the design of a surface water drain or foul sewer.

L

h

OPEN CHANNEL FLOW CALCULATION

Calculation which determines the discharge of an open channel which may consist of multiple sections.

The calculation uses the Manning equation in the following form:

2/10

3/2 SRn

AQ

It is possible to calculate the discharge of compound sections by adding the total flow of a series of partial sections, as shown in the following sketch and corresponding equation.

A , n1 1A , n2 2

A , n3 3

P1

P2

P3

2/1

0

3/2

3

3

33/2

2

2

23/2

1

1

1 SRn

AR

n

AR

n

AQ

The compound channel may consist of up to four separate sections, each with a different set of properties.

The calculation assumes steady flow.


Page 20 of 34

FOUNDATIONS BASE PLATE DESIGN (AS4100-1998)

Australian Standard Steel Structures (AS 4100-1998).

The calculations determine the capacity of base plate.

The calculations incorporate the column section size while calculating the capacity of base plate.

The required bearing area is calculated for the axial compression load applied on the column.

di

bi

bf

d

x

y

ce

ce

Effectiveconcretearea A

Actualconcreteperimeter

2

Minor axis

Majo

raxis

0.95 d

0.8bf

a2

a1

PAD FOOTING ANALYSIS & DESIGN (AS3600-2001)




PPA

B

HyB

HxBHyAHxA

MyA MxAMyB MxB




Page 21 of 34

PILE GROUP ANALYSIS

The calculations determine the reactions of a series of piles subject to one or more loads assuming distribution through a rigid pile cap.





MP

H




Page 22 of 34

WALL STRIP FOOTING DESIGN (AS3600)

These calculations start from an applied load per metre run and an allowable bearing pressure, and determine the minimum foundation width required to keep the net bearing pressure below the permissible bearing pressure.

For mass concrete foundations, the calculations check that the spread of the load in the footing is >45 degrees and hence an un-reinforced solution is adequate.

For reinforced footings the calculations calculate the shear and moment at the face of the wall and calculate the minimum reinforcement required for the base.

The calculations require that the wall type (internal, party or cavity) is selected. This wall type is only relevant if a wall load chase down calculation has been run before this calculation. The correct loads will be picked up automatically in this instance if the same wall type is selected.


b

d

h

t

s

Wall

Mass Concrete Foundation

w

w

w


Reinforced Foundation

Wall

c

ult

s

t

h

d

d

Pb

w

w

w

w

w



Page 23 of 34

HIGHWAY ALIGNMENT HORIZONTAL CURVE DESIGN

Horizontal curve - These calculations design a circular horizontal curve (no transitions). The calculation uses a 'generic number of chords' method, which calculates the optimum chord length based on the criteria of the length of chord required to approximate the arc length of the curve.

Vertical curve - These calculations design a vertical curve and provide the setting out information (reduced levels at the relevant chainage points). This calculation can be phased with the horizontal curve design, to enable the same setting out points to be used.

For phasing of the horizontal and vertical curves, a reference point on the horizontal curve must be given. The chainage points are then calculated in relation to this reference point. The chord length (or frequency of levels) should also coincide with the chord length used in the horizontal alignment calculations. Where applicable the appropriate default values are given.


VERTICAL CURVE DESIGN

Horizontal curve - These calculations design a circular horizontal curve (no transitions). The calculation uses a 'generic number of chords' method, which calculates the optimum chord length based on the criteria of the length of chord required to approximate the arc length of the curve.

Vertical curve - These calculations design a vertical curve and provide the setting out information (reduced levels at the relevant chainage points). This calculation can be phased with the horizontal curve design, to enable the same setting out points to be used.

For phasing of the horizontal and vertical curves, a reference point on the horizontal curve must be given. The chainage points are then calculated in relation to this reference point. The chord length (or frequency of levels) should also coincide with the chord length used in the horizontal alignment calculations. Where applicable the appropriate default values are given.



Page 24 of 34

LOADING AERODYNAMIC SHAPE FACTOR (AS1170.2-2002)

AS/NZS 1170.2:2002 Structural design actions, Part 2: Wind actions.

Calculation of aerodynamic shape factor (including for frictional drag) for various structures.

Structures:-

o Freestanding hoardings and walls.

o Free roofs and canopies.

o Attached canopies, awnings and carports.

o Cantilevered roofs and canopies.

BASIC WIND LOADING (1170.2)

These calculations determine the wind speed and wind pressure in accordance with AS/NZS 1170.2.

The calculations provide wind pressures for ultimate and serviceability limit state. Shielding and topographic multipliers can be directly input or can be calculated.

One wind direction is considered for each run of the calculations. Hence up to four runs would be required to determine the worst suction and pressure loads on any particular wall or roof surface from all wind directions.

COLUMN LOAD CHASE DOWN (AS1170.1-2002)

AS 1170.1-2002 Structural design actions. Part 1 Permanent, imposed and other actions.

These calculations work out the factored axial loads on each stack of a multi-storey column due to permanent and imposed loading.

The calculations cover internal, edge, corner and re-entrant corner columns.

For each column type the floor is divided into quadrants. Each quadrant may have a different load and edge loads may be added to those quadrants forming the edge of the building.

Imposed loads can be adopted reduced in accordance with clause 3.4.2 of the code, or the full imposed loads can be applied with no reduction. Each individual quadrant can be selected to have imposed load reduction or not. The calculations always start with a roof where load reduction factor is 1.0, and for remaining floors below roof it is calculated.

Interior

column

Re-entrant

corner

column

Edge

columnCorner

column

I

I I

I

IIII

II

IIIIII

IV


Page 25 of 34

COMPREHENSIVE WIND LOADING (1170.2)

These calculations determine the site wind speed, design wind speed and design wind pressure in accordance with AS/NZS 1170.2.

AS/NZS 1170.2 covers structures within the following criteria: (a) Buildings less than 200 m high. (b) Structures with roof spans less than 100 m. (c) Structures other than offshore structures, bridges and transmission towers.

The calculations provide wind pressures for ultimate and serviceability limit state. Wind speed multipliers can be calculated and applied to cater for shielding and topographic conditions (these can be entered directly or can be calculated).

The site wind speeds are determined for each cardinal direction. The design wind speeds are determined for each building orthogonal axes considering the maximum site wind speed in the range +/- 45 degrees for each orthogonal direction. The design wind pressures are calculated from the design wind speeds for each orthogonal direction.

In this calculation only one value can be used for the terrain category for the site and no change in terrain category can be calculated. The user can select Mzcat from a table (as per AS/NZ 1170.2) or can choose to specify any value.

Aerodynamic shape factors can be calculated for enclosed rectangular buildings in accordance with AS/NZS 1170.2 Section 5.

No local pressure effect (Kl) has been included when determining the aerodynamic shape factor and this should be considered separately. No consideration or reduction has been made for permeable cladding (Kp) in the shape factor calculations.

Frictional drag forces have not been included.

North

BB

AA

x

x y

y

= 0

= 90

= 0

= 90

= 180

= 270

DEAD LOAD CALCULATION

These calculations determine the unfactored dead loads of a series of composite constructions.

The composite constructions are intended to represent the various floor, wall and roof components of a building or structure.

The calculation includes a datalist of typical material densities as well as a datalist based on Tables A.1 to A.12 from annex A of Eurocode 1: Actions on structures - Part 1-1: General actions - Densities, self-weight, imposed loads for buildings.


Page 26 of 34

HIPPED END LOADING

These calculations determine the loading on the gable frame, flat top portal and first portal frame resulting from a hip extending over two frame centres.

It is assumed that the flat top portal gives no support to the hip raker. This introduces a small error local to the intersection of the flat top portal and the hip raker. All loads from the raker do pass to the flat top via the local jack rafters.

S1

S2

S3

Portal Frame

Portal Frame

Flat Top Portal Frame

Gable Frame

Hip raker

Jack rafters

= Crsg =x1

x2

Lspan/2

x3

Point loads

3210

NOTIONAL LOAD CHASE DOWN (AS4100-1998)

These calculations work out the notional horizontal loads at the roof and each floor level of a multi-storey building.

The floor area and perimeter wall lengths can be calculated for a range of building shapes, or values for these parameters can be entered directly, by selecting the user-defined shape option.

SEISMIC LOADS (AS1170.4-2007)

This calculation determines earthquake actions on building structures as detailed in AS 1170.4-2007 Part 4: Earthquake actions in Australia.

Domestic structures are also covered and the racking loads determined when applicable.


Page 27 of 34

WALL LOAD CHASE DOWN (AS1170.1-2002)

These calculations determine the strength and service design actions on the foundations under the walls in consideration for a multi-storey building, based on the loading from the floors either side of the wall on each level and the self weight of the wall.

These calculations also calculate the wall design load at each level of the building, again based on the loading from the floors above the wall on each level and the self weight of the wall. The total load includes the whole self weight of the wall on the level at which it is being considered.

The permanent loads are built up from the separate elements of each area, such as the roof, including sensible default values e.g. under roof loading the total dead load is built up from Tiles, Battens, Felt and Rafters etc., all of which have default values but which can changed to suit.

The walls types that can be considered are party, internal or cavity walls.

The roof can be timber or steel and sloping or flat. Each floor can be timber, in-situ or precast concrete.

h

h

h

h2nd floor

1st floor

Ground floor

Roof

Span Spanroof_1

Span Span2_1 2_2

Span Span1_1 1_2

Span Spangrnd_1 grnd_2

roof_2wroof

w

w

w

floor2

floor1

grnd

w

w

w

w

1

grnd

below

2

below

1

2

grnd

Wall self weight

Floor loads

W

Wall load chase downNote:- cw, iw and pw subscripts are use

to designate wall type

u and f subscripts are used to to designate unfactored andfactored loads

WIND PRESSURE COEFFICIENTS (1170.2)

This item will allow you to specify the internal and external pressure coefficients for a rectangular enclosed building. This item has been included to allow the engineer to quickly refer to all the wall and roof pressure coefficients using Section 5 of AS/NZS 1170.2. The calculations refer to the necessary data tables.

Aerodynamic shape factors can be calculated for enclosed rectangular buildings in accordance with AS/NZS 1170.2 Section 5.

No local pressure effect (Kl) has been included when determining the aerodynamic shape factor and this should be considered separately. No consideration or reduction has been made for permeable cladding (Kp) in the shape factor calculations.

Frictional drag forces have not been included.


Page 28 of 34

MISCELLANEOUS CO-ORDINATE CONVERSION CALCULATION

The calculation is based on the first principles of setting out co-ordinates, given the co-ordinates of a base station it will determine either:

The coordinates of the target if the bearing angle from north and distance along the bearing are known.

The bearing angle from north and distance along the bearing to the target if the coordinates of the target are known.

Length L

Target

East

No

rth

Bearing

Station (E,N)

Target (E ,N )Target

PILE GROUP ANALYSIS

The calculations determine the reactions of a series of piles subject to one or more loads assuming distribution through a rigid pile cap.

RIGID DIAPHRAGM FORCE DISTRIBUTION

Calculation for the distribution of lateral forces through a rigid diaphragm into lateral force resisting elements that supports the diaphragm.

Lateral force resisting elements include columns (steel or concrete), braced bays (steel), individual shear walls and other elements.

Calculation checks summation of all direct forces and torsional shear forces.


Page 29 of 34

RETAINING WALLS RETAINING WALL ANALYSIS & DESIGN (AS4678-2002)







tbase

dds

SurchargeW

Base material


Water level

dcover


dexc

Virtualback of wall

Depth of excavation

Wall

Heel

l toe l heeltwall

l base

tds

Toe

Downstand

hst

em

hw

ater

hw

all hef

f


Page 30 of 34

SECTION PROPERTIES COMPOUND SECTION PROPERTIES

These calculations determine the section properties of one of three possible combined section shapes, two I sections (at 90 degs), a channel on an I section or a plate on an I section.


SECTION PROPERTIES CALCULATOR

The Section Properties Calculator calculates section properties for a section constructed from rectangles, triangles and circles, with or without holes.

The calculated section properties are returned to the TEDDS document as variables for use in further calculations.

Standard section types can be designed quickly from within the calculation user interface by specifying the dimensions of the section.

Custom sections can be created by using the Section Designer application. This application allows a section to be designed using a simple CAD style user interface. Sections can be saved for re-use at a later date.

Existing datalists can be used to import sections either as a starting point for new sections or to create combined sections (such as a channel on an I section). Datalists are available for the UK, USA, Canada, Japan, Singapore and Australian sections.


Page 31 of 34

STEEL BASE PLATE DESIGN (AS4100-1998)

Australian Standard Steel Structures (AS 4100-1998).

The calculations determine the capacity of base plate.

The calculations incorporate the column section size while calculating the capacity of base plate.

The required bearing area is calculated for the axial compression load applied on the column.

di

bi

bf

d

x

y

ce

ce

Effectiveconcretearea A

Actualconcreteperimeter

2

Minor axis

Majo

raxis

0.95 d

0.8bf

a2

a1

BOLT GROUP ANALYSIS

This calculation determines the shear force distribution across a group of bolts from an applied vertical and horizontal load.

Origin (0, 0)

Centre of gravity of bolt group (Xc, Yc) Point of load application (X, Y)

Px

Py

dx Sx

dy

Sy


Page 32 of 34

MOMENT CONNECTION DESIGN (AS4100-1998)

Sg

di

bi

Sp_t

ae_t

af

V* M*

N*

bfb

LeftBeam

RightBeam

Note :- In the sketch it is assumed that the top flange is in tension zone.

ae_c

Sp_c

Code of practice: Australian - Standard Steel Structure (AS4100-1998) and reference book Design of Structural Connections by Australian Institute of Steel Construction.

Type of connection forms handled:-

Extended bolted end plate

Type of end connections handled:-

Beam to beam (with haunch and with out haunch)

Beam to column flange (single side) (with haunch and with out haunch)

Beam to column flange (double side) (with haunch and with out haunch)

Type of sections handled:-

Universal beam, universal column, welded beam and welded column

Type of beam axis handled :-

Horizontal and inclined


Page 33 of 34

SIMPLE CONNECTION DESIGN (AS4100-1998)

Code of practice: Australian - Standard Steel Structure (AS4100-1998) and reference book Design of Structural Connections by Australian Institute of Steel Construction.

Type of connection forms handled:-

o Angle cleat

o Web side plate

o Flexible end plate

Type of end connections handled :-

o beam to beam (single side)

o beam to beam (double side)

o beam to column web (single side)

o beam to column web (double side)

o beam to column flange (single side)

Type of sections handled :-

o Universal beam, universal column, welded beam and welded column.

As appropriate, user defined coping are considered in beam to beam connections

STEEL BEAM ANALYSIS & DESIGN (AS4100)

From Australian Standard AS4100: Steel structures.

These calculations check the design of rolled and welded I and H sections, rolled channel sections, rolled T sections, rolled rectangular hollow sections and rolled circular hollow sections subject to major axis bending, shear and axial tension or compression.


The beam section is designed for worst case applied moment, shear, compression or tension and deflection across all beam spans.

The design only calculation allows you to design a single section based on defined values for bending moment, axial compression or tension, and shear force.


Page 34 of 34

TIMBER TIMBER DESIGN (AS1720.1-1997)

This calculation checks a timber member to AS1720.1-1997.

The timber section can be one of the following types: Sawn, MGP Grade, A17 Stress Grade, Glued-laminated (Glulam), Laminated Veneer Lumber (LVL) or Round.

The calculation can perform bending (major and minor axis), shear, compression, tension (parallel or perpendicular to the grain) or bearing (parallel, perpendicular or at an angle to the grain) checks or combinations of these as appropriate. The calculation can also include a deflection statement.

tedds engineering library (au)

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