angle design

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Equal Angle Design Angel Dimension Section A A  100 mm Section B B 100 mm Thickness t 10 mm Radius of Root r1 12 mm Radius of Toe r2 4.8 mm Design Forces (Ultimate) Moment about YY axis My 5.5 kN.m Moment about ZZ axis Mz 0 kN.m Shear in Z direction Vz 10 kN Shear in Y idrection Vy 0 kN Parameter Shear Modulus G 80770  N/mm 2 Young Modulus E 210000  N/mm 2 Steel Strength fy 275  N/mm 2 Imperfection factor αLT  0.76 C1  1.127 L  4500 mm γm  1 Section Properties Determinatio n Crosssection Area A 1921.013812 mm 2 Distance of centre of Gravity YY Axis Cy 28.29463123 mm ZZ Axis Cz 28.29463123 mm Second moment of Area About YY axis Iyy 1781492.35 mm 4 About ZZ axis Izz 1781492.35 mm 4 About YZ axis Iyz 104 44 39 .57 5 mm 4 Angle yy axis to zz axis  α  0.785398163 radian 45 degree Second Moment of Area about Principla Axi About UU axis Iuu 282 59 31 .92 5 mm 4 A bout VV axis Ivv 737 05 2.7 74 7 mm 4 Radius of Gyration About YY Aixs iy 30.45276543 mm About ZZ axis iz 30.45276543 mm About UU axis iu 38.35443629 mm About Vv axis iv 19.58772729 mm Point for Stress Checkin Point A y 28.29463123 mm z 71.70536877 mm Point B y 28.29463123 mm z 28.29463123 mm Point C y 71.70536877 mm

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Page 1: Angle Design

7/26/2019 Angle Design

http://slidepdf.com/reader/full/angle-design 1/4

Equal Angle Design

Angel Dimension

Section A A   100 mm

Section B B 100 mmThickness t 10 mm

Radius of Root r1 12 mm

Radius of Toe r2 4.8 mm

Design Forces (Ultimate)

Moment about Y‐Y axis My 5.5 kN.m

Moment about Z‐Z axis Mz 0 kN.m

Shear in Z direction Vz 10 kN

Shear in Y idrection Vy 0 kN

Parameter

Shear Modulus G 80770 N/mm

2

Young Modulus E 210000 N/mm2

Steel Strength fy 275 N/mm2

Imperfection factor αLT   0.76

C1   1.127

L   4500 mm

γm   1

Section Properties Determination

Cross‐section Area A 1921.013812 mm2

Distance of centre of Gravity 

Y‐Y Axis Cy 28.29463123 mmZ‐Z Axis Cz 28.29463123 mm

Second moment of Area

About Y‐Y axis Iyy 1781492.35 mm4

About Z‐Z axis Izz 1781492.35 mm4

About Y‐Z axis Iyz ‐1044439.575 mm4

Angle y‐y axis to z‐z axis   α   0.785398163 radian

45 degree

Second Moment of Area about Principla Axi 

About U‐U axis Iu‐u 2825931.925 mm4

About V‐V axis Iv‐v 737052.7747 mm4

Radius of Gyration

About Y‐Y Aixs iy 30.45276543 mm

About Z‐Z axis iz 30.45276543 mm

About U‐U axis iu 38.35443629 mm

About V‐v axis iv 19.58772729 mm

Point for Stress Checkin

Point A y ‐28.29463123 mm

z 71.70536877 mm

Point B y ‐28.29463123 mmz ‐28.29463123 mm

Point C y 71.70536877 mm

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z ‐28.29463123 mm

Point of Stress Checking after Rotation at Principla Axi 

Point A u 30.69602689 mm

v 70.71067812 mm

Point B u ‐40.01465123 mm

v 0 mmPoint c u 30.69602689 mm

v ‐70.71067812 mm

Section Design

Moment Capacity Check 

Design Moment (Ultimate)

Ultimate moment about y‐y axis My 5500000 N.mm

Ultimate moment about z‐z axis Mz 0 N.mm

Effective moment about y‐y axis Mey 8380507.745 N.mmEffective moment about z‐z axis Mez 4913259.352 N.mm

Moment about u‐u axis Mu 3889087.297 N.mm

Moment about v‐v axis Mv 3889087.297 N.mm

Stress at (Moment)

Point A   σA   221.3759314 N/mm2

Point B   σB   ‐87.35399385 N/mm2

Point C   σC   ‐87.35399385 N/mm2

Stresses Due to Effective Moment 

Point A   σA   259.2817964 N/mm2

Point B   σB   ‐211.1388453 N/mm2

Point C   σC   64.65573515 N/mm2

Stresses Due to Moment about Principle Axi 

Point A   σA   259.2817964 N/mm2

Point B   σB   ‐211.1388453 N/mm2

Point C   σC   64.65573515 N/mm2

Design Flexural Status:   PASS

Lateral Buckling : General Case Method

Torsional Constant It 63333.33333 mm4

Warping Constant Iw 47631944.44 mm6

Length between restraint L 4500 mm

elastic critical moment Mcr 34435862.78 N.mm

Section Modulus Top Wel, top 24844.61597 N/mm4

Section Modulus bottom Wel,btm 62962.20422 N/mm4

Non‐dimensional slenderness   λLT   0.44542748

ϕLT

  0.692465262χ    0.817891364

Mb,Rd 5.588054129 kN.m

Page 3: Angle Design

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Design Flexural Buckling Status :   PASS

Shear force in z‐direction Vz 10000 N

Shear force in y direction Vy 0 N

Effective Shear Force y‐direction Vey 8933.198822 N

Effective Shear Force z‐direction Vez 15237.28681 N

Effective areain z direction Az 775.0555737 mm2

Effective area in y direction Ay 775.0555737 mm2

Vpl,Rd z 123056.5996 N

Vpl,Rd y 123056.5996 N

Design Shear Status :   PASS

Elastic Shear Resistance Check 

Shear Stress

Vez/Iy 0.008553103Vey/Iz 0.005014447 C2

Stress Location Stress

Vertical Section

Maximum Stress 58.04837 ‐144.1032506

Stress at Rotation Angle 95 ‐85.71024471

Horizontal Section

Maximum Stress 63.0281 13.89024519

Maximum Stress 144.1032506

Elastic Shear Check   τEd   14.41032506 N/mm2

Limiting Shear Stress   fy/√3γm   158.771324 N/mm2

cl 6.2.6

Design Shear Resistance Status PASS

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Table 6.3