Design Calculation Report: Design of Crib Section For Stagging

DESIGN CALCULATION REPORT FOR

DESIGN OF CRIB SECTION FOR STAGGING PROJECT

DELHI METRO PHASE-IV CONTRACT NO DC-02

CLIENT DELHI METRO RAIL CORPORATION LIMITED CONTRACTOR

LONGJIAN-KEC JOINT VENTURE

PREPARED BY

ATYCONSULT ENGINEERS AND PLANNERS LLP. Rev

Remark

Date

R0

FOR INFO.

08/06/2021

Prepared By

Approved by

MAYANK RAWAT ASHWANI TYAGI

DATE 08.06.2021 REV R0

Calculation Report for

DESIGN OF CRIB SECTION FOR STAGGING

Project DELHI METRO PHASE IV DC-02

Contractor LONGJIAN-KEC JOINT VENTURE

ATYCONSULT ENGINEERS AND PLANNERS LLP.

TABLE OF CONTENTS 1.0 INDRODUCTION

2

1.1

GENERAL

2

1.2

DESCRIPTION OF THE STEEL STRUCTURE

2

1.3

REFERENCE DOCCUMENTS

7

2.0 MATERIALS 2.1

STRUCTURAL STEEL

7 7

3.0 ANALYSIS AND DESIGN METHODOLOGY

7

5.0 PRILIMINARY LOAD CASES AND COMBINATIONS

9

5.1

PRILIMINARY LOAD CASES

6.0 SAP DESIGN ANALYSIS

9 10

Page 1 of 10

DATE 08.06.2021 REV R0

Calculation Report for

DESIGN OF CRIB SECTION FOR STAGGING

Project DELHI METRO PHASE IV DC-02

Contractor LONGJIAN-KEC JOINT VENTURE

ATYCONSULT ENGINEERS AND PLANNERS LLP.

1.0 INDRODUCTION 1.1 GENERAL This calculation report covers the design of steel structure for Stagging for hammer head shuttering. Structure mainly consists of inner formwork, external formwork, stagging and working platform. This document set out the design philosophy and all appropriate design criteria. Only the relevant calculation is reported. The report is set with the minimum requirement of the section, however higher configuration is accepted. 1.2 DESCRIPTION OF THE STEEL STRUCTURE The structure is composed by two different parts, main formwork, supporting column framing. Formwork is provided with horizontal stiffeners and columns of built-up section. Main structural supporting framings are provided with Crib L 50x50x6 etc. Support conditions are considered as pin support.

Page 2 of 10

DATE 08.06.2021 REV R0

Calculation Report for

DESIGN OF CRIB SECTION FOR STAGGING

Project DELHI METRO PHASE IV DC-02

Contractor LONGJIAN-KEC JOINT VENTURE

ATYCONSULT ENGINEERS AND PLANNERS LLP.

ISOMETRIC VIEW STAGE 1

Page 3 of 10

DATE 08.06.2021 REV R0

Calculation Report for

DESIGN OF CRIB SECTION FOR STAGGING

Project DELHI METRO PHASE IV DC-02

Contractor LONGJIAN-KEC JOINT VENTURE

ATYCONSULT ENGINEERS AND PLANNERS LLP.

Page 4 of 10

DATE 08.06.2021 REV R0

Calculation Report for

DESIGN OF CRIB SECTION FOR STAGGING

Project DELHI METRO PHASE IV DC-02

Contractor LONGJIAN-KEC JOINT VENTURE

ATYCONSULT ENGINEERS AND PLANNERS LLP.

Page 5 of 10

DATE 08.06.2021 REV R0

Calculation Report for

DESIGN OF CRIB SECTION FOR STAGGING

Project DELHI METRO PHASE IV DC-02

Contractor LONGJIAN-KEC JOINT VENTURE

ATYCONSULT ENGINEERS AND PLANNERS LLP.

Page 6 of 10

DATE 08.06.2021 REV R0

Calculation Report for

DESIGN OF CRIB SECTION FOR STAGGING

Project DELHI METRO PHASE IV DC-02

Contractor LONGJIAN-KEC JOINT VENTURE

ATYCONSULT ENGINEERS AND PLANNERS LLP.

1.3 REFERENCE DOCCUMENTS Drawing – ATY 202016 D209, D210, D211 Design Standard – IS800:2007 & CIRIA Report

2.0 MATERIALS 2.1 STRUCTURAL STEEL

STEEL – Structural Steel, Es = 2 x105 N/ mm2 Density – 7850kg/m3 IS 2062 Grade A (Fy 250) for Rolled section and plates upto 20mm thk., IS 2062 Grade B for plates higher than 20mm thk.

3.0 ANALYSIS AND DESIGN METHODOLOGY

For analysis whole structure/frame is modeled in SAP2000 with pinned support. Structural steel designed in SAP2000, however formwork plate is not modeled which is designed separately. The structural framing member design check has been done in limit state method in SAP2000 and a plate, stiffeners has been checked for working stress method.

Page 7 of 10

DATE 08.06.2021 REV R0

Calculation Report for

DESIGN OF CRIB SECTION FOR STAGGING

Project DELHI METRO PHASE IV DC-02

Contractor LONGJIAN-KEC JOINT VENTURE

ATYCONSULT ENGINEERS AND PLANNERS LLP.

Page 8 of 10

DATE 08.06.2021 REV R0

Calculation Report for

DESIGN OF CRIB SECTION FOR STAGGING

Project DELHI METRO PHASE IV DC-02

Contractor LONGJIAN-KEC JOINT VENTURE

ATYCONSULT ENGINEERS AND PLANNERS LLP.

5.0 PRILIMINARY LOAD CASES AND COMBINATIONS 5.1 PRILIMINARY LOAD CASES

Sr. No.

Description

1

SEISMIC LOAD IN +X DIRECTION. ( SLX ) NOT APPLIED

2

SEISMIC LOAD IN +Z DIRECTION. ( SLZ ) NOT APPLIED

3

SEISMIC LOAD IN +Y DIRECTION. ( SLY ) NOT APPLIED

4

DEAD LOAD ( DL )

5 FIRE PROOFING LOAD (FP) – NOT APPLIED

6

LIVE LOAD ( LL )

7

FILLED DEAD LOAD ( FL )

8

WIND LOAD

Page 9 of 10

DATE 08.06.2021 REV R0

Calculation Report for

DESIGN OF CRIB SECTION FOR STAGGING

Project DELHI METRO PHASE IV DC-02

Contractor LONGJIAN-KEC JOINT VENTURE

ATYCONSULT ENGINEERS AND PLANNERS LLP.

6.0 SAP DESIGN ANALYSIS

STAGGING IS SAFE UNDER GIVEN CRIB SECTION

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