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C4-ADDENDUM 19 Page 1 of 14
NATIONAL HIGH SPEED RAIL CORPORATION LIMITED (NHSRCL)
(A Joint Sector Company of Govt. of India and Participating State Government)
2nd Floor, Asia Bhawan, Road No.205, Sector-9, Dwarka, New Delhi-110077, India
Addendum No.19
Country: INDIA
Name of Work: Design and Construction of Civil and Building Works including Testing and Commissioning on Design Build Lump Sum Price
basis for Double Line High Speed Railway involving Viaducts, Bridges, Maintenance Depots, Tunnel, Stations (Vapi, Bilimora, Surat and
Bharuch), and Surat Depot between Zaroli Village at Maharashtra-Gujarat Border and Vadodara from MAHSR Km. 156.600 to MAHSR Km.
393.700, excluding Works for 04 No. PSC Bridges and 07 No. Steel Truss Bridges, in the State of Gujarat and the Union Territory of Dadra and
Nagar Haveli for the Project for Construction of Mumbai-Ahmedabad High Speed Rail
Date: 14.04.2020
Loan Agreement No.: ID-P277 & ID-P279
IFB Number: Package No. MAHSR-C-4
Following are to be considered:
Item
No. Refer Para No. Original/As Existing Revised
1. Part 2, Section VI-1,
Division 08000,
Sub-Division 08000-1,
Sub-Clause 2.12.4.9
Page 24 of 189
If the Contractor fails to conduct the Internal SHE Audit in time,
the Engineer shall get it done.
If the Contractor fails to conduct the External SHE Audit in
time, the Engineer shall get it done. The cost of the same shall
be on Contractor’s account.
2. Part 2, Section VI-1,
Division 08000,
Sub-Division 08000-1,
Sub-Clause 6.1.1
Page 101 of 189
The Contractor shall review and comply with the environmental
management plan (EMP) prepared in the Supplemental
Environmental Impact Assessment (S-EIA) report available on
the JICA information disclosure website
(https://www.jica.go.jp/english/our_work/social_environmenta
The Contractor shall comply with the Supplemental
Environmental Impact Assessment (S-EIA) report and
environmental management plan (EMP) prepared in the S-EIA
available on the NHSRCL information disclosure website
(https://www.nhsrcl.in/environmental-impact-assessment-
C4-ADDENDUM 19 Page 2 of 14
Item
No. Refer Para No. Original/As Existing Revised
l/id/asia/south/category_ a_b_fi.html) and will note and
implement any requirements therein, in addition to those found
in this specification.
report) and will note and implement any requirements therein,
in addition to those found in this specification.
3. Part 2, Section VI-1,
Division 08000,
Sub-Division 08000-1,
Sub-Clause 6.1.2
Page 101 of 189
Before the start of construction, the Contractor will prepare a
Construction Environmental Management Plan (CEMP) based
on the CEMP Form (Attachment-8) to be reviewed and
approved by the Engineer and implemented during the work.
The CEMP shall sufficiently address the items contained in this
specification.
Before the start of construction, the Contractor will prepare a
Construction Environmental Management Plan (CEMP) based
on the EMP in Supplemental Environmental Impact
Assessment (S-EIA) report to be reviewed and approved by the
Engineer and implemented during the work. The CEMP shall
sufficiently address the items contained in this specification.
4. Part 2, Section VI-1,
Division 08000,
Sub-Division 08000-1,
Sub-Clause 6.2.3
Page 102 of 189
<Add the following sub-Clause 6.2.4 after existing Sub- Clause
6.2.3>
“6.2.4. The Contractor shall comply with all legislative
requirements and any additional conditions imposed by the
competent authorities while giving approval or subsequent
conditions given by authorities, throughout the entire
construction period.”
5. Part 2, Section VI-1,
Division 08000, Appendix
08000-1, Sub-Clause 6.9.
1. Item 6.9.1,
2. Item 6.9.3
Page 109 of 189
6.9.1. The Contractor is responsible for complying with the
Noise Pollution (Regulation and Control) Rules (2000),
particularly residential area and silence zone as per the rule.
6.9.3. The Contractor shall cease any activity likely to produce
“Significant” noise at all locations that are less than 150 m from
residential area and silence zone as per the Noise Pollution
(Regulation and Control) Rules (2000), between the hours of
10.00 pm and 6.00 am, and on Sundays and public holidays. The
Site near sensitive zone as per the Noise Pollution (Regulation
and Control) Rules (2000) shall be surrounded by the temporary
noise barriers if adjacent work is necessary.
6.9.1. The Contractor is responsible for complying with the
Noise Pollution (Regulation and Control) Rules (2000),
amendments thereafter and relevant applicable laws.
6.9.3. <Deleted>.
C4-ADDENDUM 19 Page 3 of 14
Item
No. Refer Para No. Original/As Existing Revised
6. Part 2, Section VI-2,
Division 02000, Sub-
Division 02020, Sub-
Clause 1.1,
Page 7 of 37
Geotechnical Investigation data (Geotechnical Profile) along
the alignment is provided in the Employer’s Requirements -
Reference Information/Reports.
The geotechnical investigation data provided by the Employer
is the minimum required information for planning and the
Standard Design. The Contractor shall carry out the detailed
geological survey before the preparation of technical design/
drawings and construction execution.
Geotechnical Investigation data (Geotechnical Profile) along
the alignment available with the Employer is provided in the
Employer’s Requirements - Reference Information/Reports.
The Contractor shall carry out the detailed
geological/geotechnical survey before the preparation of
technical design/ drawings and construction execution.
7. Addendum No. 14, Item 9,
Attachment No. 2, Page 5
of 17, Part 2, Section VI-2,
Division 02000,
Attachment – 6, Sub-Clause
6.1, Fig. A6.2
Fig. A6.2 Procedure of Verification of Running Safety of
General Viaducts & Bridges Fig A6.2 has been modified. Refer Attachment No. 01 of this
Addendum.
8. Addendum No. 3, Item 28,
Part 2, Section VI-2,
Division 02000,
Sub-Division 02030,
Sub-Clause 2.1.2 (4),
Item s), Page 15 of 37
s. Circular piers shall only be used in river crossing bridges. s. Circular piers shall only be used in river Crossing Bridges
and any other bridges in flowing water streams and shall not
be used with PSC Box girder (ILM).
9. Addendum No. 13, Item 33,
Part 2, Section VI-2,
Division 02000,
Attachment-5,
Sub-Division 02040, Sub-
Clause 3.2.4, Figure 4.3.4,
Page 164 of 207
Figure 4.3.4: Applicable pier for crossover section (Surat
Station)
Figure 4.3.4 has been modified, refer Attachment No. 02 of this
addendum.
10. Part 2, Section VI-2,
Division 02000,
Attachment-5,
a) Abutment
Maximum height of abutment shall be 5.0m. a) Abutment
Maximum height of abutment shall be 5.0m.
Table 5.2.11.a: Standard Design drawing for abutment
C4-ADDENDUM 19 Page 4 of 14
Item
No. Refer Para No. Original/As Existing Revised
Sub-Division 02050, Sub-
Clause 2.3.2.3, Item a),
Page 164 of 207 Foundation type
Maximum
abutment
height
Applicable
Standard
Design
drawings
Spread
foundation
≥ 600kN/m2
5m
SA-A-W-S-20
≥ 1200kN/m2 SA-A-W-S-40
Cast in-situ pile, Driven pile SA-A-W
11. Part 2, Section VI-3,
Division 02000,
Sub-Clause 2.2,
Item f), g), h)
Page 26 of 159, 27 of 159
f) If it is recognized that the soil quality at the bottom-of-
excavation greatly differs from the design documents and
drawings or if the plate load test result (where applicable) does
not satisfy the bearing capacity requirements, the Contractor
shall report the matter to the Engineer and shall proceed for
construction only after revising the design and drawings and
after obtaining approval from the Engineer.
f) <Deleted>
12. Addendum No. 2, Item 138,
Part 2, Section VI-3,
Division 02000,
Sub-Clause 3.4.1,
Page 30 of 159, 31 of
159
Standard Design drawings indicate the locations of splicing of
bars. Other than those, no splicing of bars shall be permitted
without prior approval of the Engineer. Lengths of splice,
wherever required, shall be as indicated on the Standard Design
drawings and/or shop drawings and approved by the Engineer.
Lapped splices shall be staggered and located at points along the
span where stresses are low, unless otherwise indicated in
Standard Design drawings, other parts of the Technical
Specifications or approved by the Engineer.
Standard Design drawings indicate the locations of splicing of
bars. Other than those, no splicing of bars shall be permitted
without prior approval of the Engineer. Lengths of splice,
wherever required, shall be as indicated on the Standard Design
drawings and/or shop drawings subject to a minimum length of
40d and 50d for rebar diameter ‘d’ less than 25mm, and
greater than or equal to 25mm respectively, and approved by
the Engineer. Lapped splices shall be staggered and located at
points along the span where stresses are low, unless otherwise
indicated in Standard Design drawings, other parts of the
Technical Specifications or approved by the Engineer.
C4-ADDENDUM 19 Page 5 of 14
Item
No. Refer Para No. Original/As Existing Revised
13. Addendum No. 3, Item 168,
Part 2, Section VI-2,
Division 05010,
Sub-Clause 5.12.5,
Item c),
Page 47 of 48
All concrete wall, MU and solid brick wall surfaces shall be
rendered by cement plastering finish on both sides from the
floor slab to the underside of the floor construction above, and
cement plastering thickness shall be 30 mm for exterior
applications, and 20 mm for interior applications, unless
otherwise indicated on the drawings or after obtaining approval
from the Engineer.
All concrete wall, MU and solid brick wall surfaces shall be
rendered by cement plastering finish on both sides from the
floor slab to the underside of the floor construction above, and
cement plastering thickness shall be 30 mm for exterior
applications, and 15 mm for interior applications, unless
otherwise indicated on the drawings or after obtaining approval
from the Engineer.
14. Part 2, Section VI-3,
Division 05010,
Sub-Clause 5.4,
Page 19 of 79
Dimension of tile can range from 600 mm x 600 mm to 800 mm
x 1200 mm, subject to Engineer’s approval. The thickness of the
tiles shall vary according to size, between 10 mm and 16 mm.
Dimension of tile can range from 600 mm x 600 mm to 800
mm x 1200 mm, subject to Engineer’s approval. The thickness
of the tiles shall vary according to size, between 8 mm and 16
mm (as per drawing). The tile shall have an Anti-Skid finish in
the wet areas.
15. Part 2, Section VI-3,
Division 05010,
Sub-Clause 1.1,
Page 6 of 73
<Add the following item after item 10 in Sub-Clause 1.1>
“11) The Contractor shall submit a list of proposed brand
names for all Architectural finishes to be used in the project as
per good industrial practices, at the Detailed Design Phase after
the award of the Contract. The proposed brands in the list
should have been used in projects such as metro rails, airports,
5-star hotels etc.”
16. Part 2, Section VI-3.
Division 05010,
Sub-Clause 5.2,
Page 18 of 75
<Add the following sub-clause after sub-clause 5.2.2>
“5.2.3. Selection of Granite
The quantity of Granite to be used in station shall be of 4
categories based on the colour selection, quality and mine
location of granites as mentioned in the table below.
Commonly used industry names of different Granites along
with application percentage has been mentioned in the table
below.
C4-ADDENDUM 19 Page 6 of 14
Item
No. Refer Para No. Original/As Existing Revised
Category 1 –
70%
Category 2 -
20%
Category 3 –
5%
Category 4
– 5%
Grey Granite
(Karnataka/
Andhra)
• Sadar Ali
• Commando
Grey
• Premium
Grey
• Grey –
Viscent White,
Kuppam White
Red Granite
(Karnataka)
• Sindoori
Red
• Imperial
Red
Jet
Black/Black
Galaxy
(Tamil Nadu/
Karnataka)
Black
Pearl
Raw Silk (Tamil
Nadu)
Hassan Green
(Karnataka)
Blue
Lavender
(Orissa)
Blue Pearl
Colonial
White
(Rajasthan)
Lakha Red
(Karnataka)
Note: The percentage quantity of each category mentioned in
the table are approximate and is subject to change with the
approval of the Engineer.
17. Addendum No. 7, Item 41,
Part 2, Section VI-2,
Sub-Division 05030
Sub-Clause 1.1.1,
Item b), Page 5 of 55
ii. In the rooms and corridors without air-conditioning:
Mechanical ventilation system shall be provided;
ii. Each room and corridor without air-conditioning:
Mechanical ventilation system shall be provided wherever
natural ventilation is not available; and
C4-ADDENDUM 19 Page 7 of 14
Item
No. Refer Para No. Original/As Existing Revised
18. Part 2, Section VI-2,
Sub-Division 05030
Sub-Clause 1.4.2, Item e),
Page 12 of 55
All Motor Control Panel (MCP) or drive motors for ECS, lifts
and escalators having output more than 5kW with or without
VFD shall also be equipped with Power Factor (PF) correction
and harmonics filtering devices to improve PF and restrict Total
Harmonics Distortion (THD) as per NBC and power supply
authority regulations.
Power Factor (PF) correction equipment shall be provided to
improve Power Factor as per NBC-2016 to meet the power
factor requirements mentioned in clause 15.2.2 Section VI-2,
Sub-Division 05040. Harmonics filtering devices to restrict
Total Harmonics Distortion (THD) shall be as per concerned
power supply authority regulations.
19. Part 2, Section VI-2,
Sub-Division 05030
Sub-Clause 1.5, Table M-1,
Environment Control
System, Page 13 of 55
17 ECS system BMS point list
17 ECS system BMS point list including equipment
control, monitoring logic through BMS.
20. Part 2, Section VI-3,
Sub-Division 05030,
Sub-Clause 2.3.2.2,
Page 22 of 46
<Add new item after item b) in sub-clause 2.3.2.2>
“c) The fan shall have low sound level as per CPCB.
Performance shall be certified as per AMCA 210 or as per ISO
5801 or relevant IS standards.”
21. Part 2, Section VI-3,
Sub-Division 05030,
Sub-Clause 2.4.2.2,
Page 22 of 46
Volume Control Damper: It shall be factory fabricated with
required hardware and accessories. Damper blades shall be
stiffened for stability. It shall include locking device to hold
single-blade dampers in a fixed position without vibration. It
shall have close duct penetrations for damper components to
seal duct consistent with pressure class and fire rating as per
NBC-2016.
Volume Control dampers shall be factory fabricated with
required hardware and accessories complete with adjusting
handles or similar device for all branches of supply air ducts
and wherever required to regulate/ balance air flow along the
main and branch ducts. Volume control dampers for branch
ducts shall be of opposed blade type.
The damper blades shall be fabricated of hot dipped galvanized
steel and shaft shall be made of stainless steel of SS-316 grade.
Thickness, dimensions and details shall be submitted for
approval of Engineer.
C4-ADDENDUM 19 Page 8 of 14
Item
No. Refer Para No. Original/As Existing Revised
22. Part 2, Section VI-3,
Sub-Division 05030,
Sub-Clause 2.4.2.3,
Page 22 of 46
Fire dampers shall be UL approved and fire rating shall be as
per NBC-2016. The mounting orientation of fire dampers shall
be vertical or horizontal, as required.
Fire dampers shall comply to UL 555 or BS 476 part-20 and
fire rating shall be as per NBC-2016. The mounting orientation
of fire dampers shall be either vertical or horizontal as
required. Leakage class shall be as per UL 555S.
Thickness, dimensions and details shall be submitted for
approval of Engineer.
23. Part 2, Section VI-2,
Sub-Division 05040,
Sub-Clause 15.4.2,
Page 37 of 76, 38 of 76
The lighting requirements, design and calculation of the
illumination levels, uniformities shall be as per best
international practices, IS. SP 72: 2010 or equivalent standard.
The adopted LUX levels, FEU and Lighting design shall be
submitted by the Contractor for approval of the Engineer. Care
shall be taken with regard to the uniformity of lighting levels for
different areas.
The lighting requirements, design and calculation of the
illumination levels, uniformity and other parameters shall be
as per IS. SP 72: 2010 and best international practices. The
adopted LUX levels, space brightness and other parameters
for lighting design shall be submitted to obtain approval from
the Engineer. Lighting design for Station, including but not
limited to offices and control rooms, shall comply with the
requirements mentioned in Clauses 7, 8 and 9, Section 2, Part
5, IS SP 72 : 2010. Care shall be taken with regard to the
uniformity, perceived space brightness, energy efficiency and
other parameters in lighting environment.
LED Chip and accessories shall be of reputed make with low
SDCM (Standard deviation color matching)/MacAdams value.
24. Part 2, Section VI-2,
Sub-Division 05040,
Sub-Clause 15.4.6,
Page 38 of 76
Contractor shall allow all things necessary to meet the required
design illumination lux level, FEU index approved by the
Engineer.
The Contractor shall allow all works necessary to meet the
required illumination LUX level, space brightness, uniformity
and other technical parameters as approved by the Engineer.
C4-ADDENDUM 19 Page 9 of 14
Item
No. Refer Para No. Original/As Existing Revised
25. Part 2, Section VI-2,
1. Sub-Division 06010,
Attachment 1,
Sub-Clause 1.1.1,
Figure 1, Page 3 of 23
2. Sub-Division 07010,
Attachment 1,
Sub-Clause 1.1.1,
Figure 1, Page 3 of 24
The pile foundation shall apply to the Surat Depot (Bore
location 263km000m), therefore the ground condition shall be
determined to be equal to or better than the ground condition
shown below:
The pile foundation shall apply to the Surat Depot (Bore
location 263km000m), therefore the ground condition shall be
determined to be similar to or better than the ground condition
shown in the Drawing No. SD-JIC-E01-DRW-M03-DPC-B01-
40401.
<Figure 1 has been deleted>
26. Part 1, Section II, BDS,
ITB 23.1, Page 6 of 33
<Add the following in the beginning of BDS ITB Sub-Clause 23.1>
“Bidders shall submit their Bids by hand or by mail. Electronic
Bid submission shall not be accepted. Procedures for
submission, sealing and marking are as follows:”
27. Part 3, Section VIII –
Particular Conditions (PC),
Part B - Specific
Provisions, Sub-Clause 1.2,
Page 20 of 77
In these Particular Conditions, provisions including the
expression “Cost plus profit” require profit to be one-twentieth
(5%) of Cost unless otherwise indicated in the Contract Data.
In these Particular Conditions, provisions including the
expression “Cost plus reasonable profit” require reasonable
profit to be one-twentieth (5%) of Cost unless otherwise
indicated in the Contract Data.
28. Part 3, Section VIII -
Particular Conditions (PC),
Part B - Specific
Provisions, Sub-Clause 2.1,
Page 22 of 77
Replace the third paragraph, including sub-paragraphs (a) and (b), and fourth paragraph with the following two paragraphs:
If the Contractor suffers a delay as a result of a failure by the Employer to give any such right or possession within such time, the Contractor shall give notice to the Engineer and shall
Replace the third paragraph with the following two paragraphs:
If the Contractor suffers delay and/or damage as a result of a failure by the Employer to give any such right or possession within such time, the Contractor shall give notice to the
C4-ADDENDUM 19 Page 10 of 14
Item
No. Refer Para No. Original/As Existing Revised
be entitled to an extension of time for any such delay as per Sub-Clause 20.1 [Contractor’s Claims], if completion is or will be delayed, as per Sub-Clause 8.4 [Extension of Time for Completion]. After receiving this notice, the Engineer shall proceed in accordance with Sub-Clause 3.5 [Determinations] to agree or determine this matter.
If the Employer fails to give any such right to access or
possession within such time, the Contractor shall give notice to
the Employer and shall be entitled to a payment for Cost,
including profit, of INR25,000(Indian Rupees Twenty Five
thousand) for damages due to delay per day for every kilometer
subject to a maximum amount of INR1,000,000,000(Indian
Rupees one billion). For any length less than a kilometer, the
payment for cost of damage due to delay shall be calculated pro-
rata.
Engineer and shall be entitled subject to Sub-Clause 20.1 [Contractor’s Claims] to:
a) an extension of time for any such delay, if completion is or will be delayed, under Sub-Clause 8.4 [Extension of Time for Completion], and
b) payment for such damages under Sub-Clause 20.1, which shall be included in the Contract Price provided that; i) the payment for damages shall be INR 25,000
(Indian Rupees Twenty-Five Thousand) per day for each kilometer in delay. For any length less than a kilometer, the payment of damages for delay shall be calculated pro-rata.
ii) the total cumulative amount of the payment as above, under the Contract shall be limited to INR1,000,000,000 (Indian Rupees one billion).
No other claim, whatsoever, shall be admissible under this Sub-Clause.
29. Addendum No. 11,
Item 9,
Part 3, Section VIII,
Part-B – Specific
Provisions,
Sub-Clause 6.5,
Working Hours,
Page 28 of 77
Replace the whole of Sub-Clause 6.5 with the following:
“No work shall be carried out on the Site on locally recognised days of rest, or outside the normal working hours stated in the Contract Data.
However, multiple shifts involving work at night or outside normal working hours is permitted for all operations with 7 days prior intimation to the Engineer after obtaining necessary permissions from local authorities, if required. The contractor shall provide temporary lighting arrangements and maintain the same satisfactorily during the execution of the Contract.
The contractor shall also take necessary actions to avoid
excessive noise & vibration etc. especially at night and if there
are complaints in this regard, then the Contractor shall take
Replace the whole of Sub-Clause 6.5 with the following:
No work shall be carried out on the Site on locally recognised days of rest, or outside the normal working hours stated in the Contract Data, unless:
a) otherwise stated in the Contract; b) the Engineer gives consent; c) the work is unavoidable, or necessary for the protection
of life or property or for the safety of the Works, in which case the Contractor shall immediately advise the Engineer; or
d) the work under multiple shifts outside the normal working hours is notified to the Engineer with seven (7) days prior
C4-ADDENDUM 19 Page 11 of 14
Item
No. Refer Para No. Original/As Existing Revised
remedial measures. No extra payment will be made to the
Contractor for the provision of such measures.”
notice, subject to prior necessary permissions obtained from local authorities, if required.
30. Part 3, Section VIII -
Particular Conditions (PC),
Part B - Specific
Provisions, Sub-Clause 8.7,
Page 34 of 77
Replace the entire first paragraph of Sub-Clause 8.7 with the following:
If the Contractor fails to comply with Sub-Clause 8.2 [Time for
Completion], the Contractor shall subject to notice under Sub-
Clause 2.5 [Employer’s Claims] pay delay damages to the
Employer for this default. These delay damages shall be the sum
stated in the Contract Data, which shall be paid for every day
which shall elapse between the relevant Time for Completion
and the date stated in the Taking- Over Certificate or the
Milestone Certificate. However, the total amount due under this
sub-clause shall not exceed the maximum amount of delay
damages (if any) stated in the Contract Data.
Replace the entire first paragraph of Sub-Clause 8.7 with the following two paragraphs:
If the Contractor fails to comply with Sub-Clause 8.2 [Time
for Completion], the Contractor shall subject to notice under
Sub-Clause 2.5 [Employer’s Claims] pay delay damages to the
Employer for this default. These delay damages shall be the
sum stated in the Contract Data, which shall be paid for every
day which shall elapse between the relevant Time for
Completion and the date stated in the Taking- Over Certificate
or the Milestone Certificate. However, the total amount due
under this sub-clause shall not exceed the maximum amount
of delay damages (if any) stated in the Contract Data.
The delay damages paid by the Contractor as a result of delay
in achieving Milestones MS-1 to MS-5 shall be refunded subject
to completion of whole of the Works within 1460 days.
31. Part 3, Section VIII -
Particular Conditions (PC),
Part A - Contract Data,
Sub-Clause 3.1(B) (ii),
Page 05 of 77
Engineer’s Duties and
Authority
3.1(B) (ii) NIL
Engineer’s
Duties and
Authority
3.1(B) (ii) 0.05%, until the cumulative
amount of Variations
instructed by the Engineer
without obtaining the
approval of the Employer
reaches 1% of the Accepted
Contract Amount.
C4-ADDENDUM 19 Page 12 of 14
Item
No. Refer Para No. Original/As Existing Revised
32. Part 2, Section VI-4,
Drawings
In Attachment 03 of this addendum “New List of Drawings”
has been given which replaces existing corresponding list of
Drawings. The Attachment with “List of Drawings” revised
are renumbered with extension R5 at the end of attachment
number.
In these lists, the original drawings which have not been
revised are shown in ‘Black’, drawings which have been
revised are shown in ‘Blue’ and drawings which have been
newly added are shown in ‘Red’.
Note that only those drawings that have been revised or newly
added are enclosed in Attachment.
Attachment may be downloaded by the Bidders, who have
purchased the Bid Document, through the link provided to the
respective Bidders.
33. Addendum 14, Item 28,
Drawing Change Record
Drawing Change Record of the lists of drawings which have
been revised in this addendum have been provided to the
Contractors for reference purpose only. Refer Attachment No.
04 of this Addendum.
Note that “ADD-18” written in the Drawing Change Record
may be read as “ADD-19”.
C4-ADDENDUM 19 Page 13 of 14
Attachment No. 01
No
Yes
Blue Zone
Combination of Girder,
Pier and Foundation to
be changed
Start Span Arrangement & Structural
Planning
Differences between 2 adjacent piers'
natural periods: (Teq1-Teq2), (Teq3-Teq2)
Natural period of
middle pier
Select types of 3 foundations
and ground case(s)/UBC
Natural periods of 3 piers
including middle pier
Submit verification results to the
Engineer for approval
Use the nomogram
Select the 2 consecutive girders (with 1
pier in between) to be verified
Select the suitable
natural period tables
Verification not
required
Verification required
Falls into the
category of General
Viaducts & Bridges?
Select the suitable nomogram
Running Safety verified
Select types &
heights of 3 piers
Select types & lengths
of 2 girders, L1, L2
Where does the
combination of
differential natural
periods fall into?
Pink or Red Zone/ Safety
Margin from Table < 1.0
/safety margin from table≥ 1.0
Fig. A6.2 Procedure of Verification of Running Safety of General Viaducts & Bridges
C4-ADDENDUM 19 Page 14 of 14
Attachment No. 02
Fig
ure
4.3
.4:
Ap
pli
cab
le p
ier
for
cross
over
sec
tion
(S
ura
t S
tati
on
)