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Copyright 2006 by Jacobs Engineering Group Inc. All rights reserved. The contents of this document are proprietary and produced for the exclusive benefit of Jacobs EngineeringGroup Inc and its affiliated companies. No part of this document may be reproduced, stored in a retrieval system, or transmitted, inany form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written approval ofJacobs Engineering Group Inc.

The current applicable version of this publication resides on JNet. All copies are considered to be uncontrolled.

Houston OfficeTechnical Guideline

Document No:

TG-25.06-100

Page:

1 of 18

Civil /Structural-Safety In DesignSupersedes: Revision: 0

Issue Date:

12-Feb-2007Issuing Department:

Civil/Structural/ Architectural

Function or Process Owner:

Tom RosinskiPrevious Rev. & Issue Date: Effective Date:

12-Feb-2007

1.0 PURPOSE

The purpose of this document is to provide the design staff guidelines to insure compliance with allsafety related requirements as outlined in the applicable codes and engineering standards.

2.0 SCOPE OF APPLICATION

This procedure applies to Civil/Structural/Architectural (CSA) department staff in cooperation withother design disciplines’ Safety in Design requirements.

3.0 DEFINITIONS

SID Safety in Design

4.0 METHOD (PROCESS REQUIREMENTS)

This guideline will supplement the requirements of applicable codes, regulations and standardengineering practices.

5.0 RESPONSIBILITIES

Responsible Step Action

Department Manager 5.1 • Review/Update the SID technical guideline to verify compliancewith current codes

• Train staff in using SID guideline

• Include SID compliance in the department Audit requirement

Lead StructuralEngineer

5.2 • Distribute to the CSA task force team in house or at work shareoffice and insure compliance with the requirements on the project

• Distribute to other discipline leads as appropriate.

• Review governing Building Code, NFPA 101 Life Safety Code, 29CFR 1910, Client and local (i.e.- Cal-OSHA) safety regulations forapplicable requirements for materials of construction, deluge, fireprotection, dimensional clearances, worker protection and egress

for all process, manufacturing and product movement areas.Lead StructuralDesigner

5.3 • Comply with the design requirements

• Insure that all designers assigned to the project are familiar withSID requirements

Lead Architect 5.4 • Review governing Building Code, NFPA 101 Life Safety Code, 29CFR 1910, Client and local (i.e.- Cal-OSHA) safety regulations for

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Effective 12 Feb 2007

Copyright 2006, Jacobs Engineering Group Inc.

Responsible Step Action

applicable requirements for materials of construction, deluge, fireprotection, dimensional clearances, worker protection and egressfor all enclosed buildings. Coordinate with Lead StructuralEngineer and Lead Structural Designer.

The lead civil/structural engineer is responsible for compliance with SID for all the engineering workperformed on the project he/she is leading. The Lead Structural Engineer will edit this document toreflect any client or local requirements that are more stringent than those shown.

6.0 DESIGN GUIDELINES & CHECKLIST

The following are general requirements and recommended practices to provide a safe design. Alldesigns and drawings shall be checked against the following check list before any document isissued for squad check or for construction.

INTERNATIONAL BUILDING CODE/NFPA 101 COMPLIANT STAIRS AND STAIRWAYHANDRAILS

•

STAIR STRINGERS DESIGNED FOR 100 PSF OR 1000 POUND CONCENTRATED LOAD

• STAIR TREADS DESIGNED FOR 300 POUND CONCENTRATED LOAD

• HANDRAIL AND GUARD ASSEMBLIES DESIGNED FOR 50 PLF AND 200 POUNDS IN ANY DIRECTION AT TOPRAIL, NOT CONCURRENTLY

• INTERMEDIATE RAILS DESIGNED FOR 50 POUNDS NORMAL TO RAIL

• STAIR WIDTH MINIMUM 36 INCHES CLEAR BETWEEN HANDRAILS, 44 INCHES WITH OCCUPANCY > 50, SEEDWG. ST-01.04-100

• PREFERRED VERTICAL HEADROOM CLEARANCE 84 INCHES, MINIMUM 80 INCHES FOR OBJECTSPROTRUDING INTO HEADSPACE

• STAIR RISER HEIGHT 7 INCHES MAXIMUM AND 4 INCHES MINIMUM, SEE DWG ST-01.04-101B

• STAIR TREAD DEPTH 11 INCHES MINIMUM, SEE DWG ST-01.04-101B

• GREATEST RISER HEIGHT WITHIN A FLIGHT DOES NOT EXCEED THE SMALLEST BY MORE THAN 3/8 INCH

• GREATEST TREAD DEPTH WITHIN A FLIGHT DOES NOT EXCEED THE SMALLEST BY MORE THAN 3/8 INCH

• STAIRWAY LANDING DIMENSION IN DIRECTION OF TRAVEL 36 INCHES MINIMUM , SEE IBC SECTION 1009.4FOR ADDITIONAL DETAILS, SEE ALSO DWG ST-01.04-100

• VERTICAL RISE IN ONE FLIGHT OF STAIRS 12 FEET MAXIMUM, SEE DWG ST-01.04-101

• GUARD RAILS ARE PROVIDED AT 42 INCHES MINIMUM ABOVE THE LEADING EDGE OF THE TREAD, SEEDWG ST-01.04-101

• STAIR HANDRAIL HEIGHT UNIFORM; NOT LESS THAN 34 INCHES HIGH, AND NOT MORE THAN 38 INCHES

HIGH (APPLICABLE AT INTERIOR STAIRS WHERE A GUARD RAIL IS NOT REQUIRED)

• STAIRWAY HANDRAILS ARE MINIMUM 1.25 INCHES O.D., MAXIMUM 2 INCHES O.D., OR EQUIVALENTGRASPABILITY, SEE DWG ST-01.04-101A

• STAIRWAY HANDRAILS ARE CONTINUOUS WITHOUT INTERRUPTION

• STAIRWAY HANDRAIL EXTENSIONS ARE PROVIDED, SEE IBC 1009.11.5 FOR ADDITIONAL DETAILS,SEE ALSODWG ST-01.04-101

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• HANDRAIL CLEAR SPACE BETWEEN HANDRAIL AND OTHER SURFACE 1.5 INCHES MINIMUM, 3 INCHESPREFERRED, SEE DWG ST-01.04-101A

• PROJECTIONS INTO THE REQUIRED STAIRWAY WIDTH AT EACH HANDRAIL AT OR BELOW THE HANDRAILHEIGHT ARE LIMITED TO HANDRAIL MOUNTING HARDWARE, AND SHALL NOT EXCEED 4.5 INCHES

LADDERS

• LADDER DESIGNED FOR 200 POUNDS CONCENTRATED LIVE LOAD FOR EACH SIX FEET OF LADDERLENGTH

• LADDER FACES STRUCTURE WHILE PERSON IS CLIMBING, SEE DWG ST-01.04-102A

• PREFERRED PLATFORM ACCESS FROM LADDER IS SIDE STEP-OFF, NOT STEP THROUGH

• MINIMUM CLEAR WIDTH OF RUNG OR CLEAT IS 16 INCHES

• 7 INCHES MINIMUM CLEARANCE FROM CENTERLINE RUNG TO NEAREST FIXED OBJECT, SEE DWG ST-01.04-102A/B

• STEP ACROSS DISTANCE FROM NEAREST EDGE OF LADDER TO STRUCTURE IS 12 INCHES MAXIMUM

• RUNG SPACING 12 INCHES ON CENTER AND UNIFORMLY SPACED

• TOP OF LADDER RUNGS MATCH TOP OF STEP-OFF PLATFORM ELEVATIONS

• HEIGHT FROM BOTTOM RUNG TO GRADE OR TOP OF LADDER PAD BETWEEN 6 TO 12 INCHES

• CLEAR WIDTH OF 15 INCHES EACH WAY FROM CENTERLINE OF LADDER, SEE DWG ST-01.04-102A/B

• LADDER EXTENSIONS AND CAGES WHERE APPLICABLE EXTEND 4 FEET MINIMUM ABOVE LANDINGS, SEEDWG ST-01.04-102

• LADDER LANDING AREA IS 30 INCHES MINIMUM, SEE DWG ST-01.04-102B

• CAGES PROVIDED FOR LADDERS MORE THAN 20 FEET ABOVE GRADE

• CAGES EXTEND TO 8 FEET MAXIMUM ABOVE BASE OF LADDER OR GRADE

• CAGE EXTENSION STRAPS TO GUARD RAIL ARE PROVIDED WHEN BASE OF LADDER IS LESS THAN 4 FEETFROM PLATFORM EDGE, AND 20 FEET ABOVE GRADE, SEE DWG ST-01.04-102

• LADDER CAGE IS FLARED AT BOTTOM, SEE DWG ST-01.04-102

• DOUBLE BAR SAFETY GATE IS PROVIDED AT LADDER OPENING FOR PLATFORMS 30 INCHES OR MORE ABOVE GRADE

• HOOP BARS ARE PROVIDED FOR LADDERS 10 FEET OR MORE ABOVE GRADE OR EXISTING PLATFORM

• MULTIPLE PLATFORMS, ACCESSED BY SAME LADDER, MIN. OF 2’-0” (2 RUNGS) DIFFERENCE IN ELEVATION,SEE DWG ST-01.04-102

• BOTTOM OF LADDER CAGE FALLS WITHIN PLATFORM GUARD RAIL AT LOWER LADDER LANDING

• INTERMEDIATE LANDINGS PROVIDED FOR LADDERS EXCEEDING 30 FEET

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PLATFORMS, WALKWAYS AND GUARD RAILS

• GUARD RAILS ARE PROVIDED AT OPEN SIDES OF PLATFORMS, RAMPS, LANDING AND WALKING SURFACESMORE THAN 30 INCHES ABOVE THE FLOOR OR GRADE BELOW, SEE IBC 1012.1 FOR ADDITIONAL DETAILS

• GUARD RAILS ARE PROVIDED AT 42 INCHES MINIMUM ABOVE THE GRATING OR FLOOR PLATE

• FLOOR OPENINGS INTO WHICH PERSONS CAN WALK, OTHER THAN LADDERS OR STAIRS, ARE PROVIDEDWITH GUARD RAILS OR FLOOR COVERS OF ADEQUATE STRENGTH AND CONSTRUCTION

• PLATFORMS AND WALKWAYS WITH OPEN SIDES WHICH ARE 30 INCHES ABOVE GRADE PROVIDED WITHTOE BOARDS, SEE DWG ST-01.04-102C

• THE SPACE UNDER THE LOWEST STAIR TREAD AT PLATFORM LANDINGS IS PROVIDED WITH TOE BOARD,SEE DWG ST-01.04-101B

• TOE BOARD THICKNESS IS 1/4 INCH MINIMUM

• TOE BOARD MINIMUM HEIGHT IS 4 INCHES NOMINAL, TOP OF TOE BOARD TO TOP OF WALKING SURFACE

• GAP BETWEEN TOE BOARD AND FLOOR PLATE OR GRATING IS 1/4 INCH MAXIMUM

• PLATFORM GUARD RAIL IS CONTINUOUS WITH STAIR GUARD RAILS

• LADDER HOOP BAR CONNECTS TO PLATFORM GUARD RAILS

• PREFERRED VERTICAL HEADROOM CLEARANCE 90 INCHES IN EGRESS EXIT WAYS, MINIMUM 80 INCHES ATPROJECTIONS

• NO PIPE SUPPORTS INTRUDING INTO HEADROOM SPACE

• PLATFORM LAYDOWN LOCATION HAS BEEN APPROVED BY PROJECT TEAM, INCLUDING CLIENTOPERATIONS

• PLATFORM LAYDOWN LOAD HAS BEEN DEFINED BY JACOBS MECHANICAL GROUP

• PLATFORM LAYDOWN AREA IS SHOWN IN PDS MODEL AND ON EQUIPMENT ARANGEMENT PLAN

• SUPPORT BEAM LAYOUT MATCHES EQUIPMENT LAYDOWN SIZE REQUIREMENTS

• ORIENT GRATING BEARING BARS TRANSVERSE TO STAIR DIRECTION OF TRAVEL AT STAIR LANDINGS

MONORAILS AND BRIDGE CRANES

• HOIST OR BRIDGE CRANE CAPACITY SHOWN ON THE DRAWINGS

• WEIGHT OF LIFTED LOAD PROVIDED BY MECHANICAL DISCIPLINE

• DESIGN BASIS OF MONORAIL HOIST OR BRIDGE CRANE IS SHOWN ON JACOBS WR-CR-011 LIST

• CAPACITY OF HOIST OR BRIDGE CRANE SYSTEM IS LARGER THAN LIFTED LOAD PLUS HOIST EQUIPMENTDEAD LOAD PLUS IMPACT

LIFTING LUGS

• WEIGHT OF LIFTED LOAD PLUS LIFTING ARRANGEMENT HAS BEEN IDENTIFIED BY PROJECT

• LIFTING ARRANGEMENT HAS BEEN RECEIVED FROM CONSTRUCTION

• CLEVIS PIN SIZE HAS BEEN DETERMINED AND HAS APPROPRIATE SAFETY FACTOR

• LIFTING LUG DESIGN INCORPORATES APPROPRIATE SAFETY FACTOR PER ASME B30.20 CHAPTER 20-1

• WELD INSPECTION IF REQUIRED IS SPECIFIED ON DRAWINGS

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• LIFTING LUG DESIGN FOR MODULES HAS BEEN VERIFIED WITH LIFTING ANALYSIS

UNDERGROUND SURVEY

• EXISTING DRAWINGS HAVE BEEN RESEARCHED FOR UNDERGROUND UTILITIES

• AN UNDERGROUND EXPLORATION PROGRAM HAS BEEN DEVELOPED AND UNDERTAKEN

• PLANT OPERATIONS PERSONNEL HAVE REVIEWED THE UNDERGROUND UTILITY FINDINGS

EXCAVATIONS

• WHERE APPLICABLE, HAS BATHTUB EXCAVATION BEEN INVESTIGATED IN LIEU OF INDIVIDUALFOUNDATION EXCAVATIONS?

• WILL 4 FEET DEPTH OF EXCAVATION SUFFICE FOR FOUNDATION BOTTOM OF CONCRETE ELEVATION TOPREVENT CONFINED SPACE FOR CONSTRUCTION?

• OPEN EXCAVATIONS ARE DESIGNED WITH OSHA REQUIRED MINIMUM SLOPES

• PRECAST VAULTS AND MANHOLES ARE PROVIDED IN LIEU OF CAST IN PLACE ASSEMBLIES WHEREVERPOSSIBLE

STEEL ERECTION SAFETY

• MINIMUM FOUR ANCHOR BOLTS HAVE BEEN PROVIDED FOR ALL COLUMNS

• COLUMN ANCHORAGE IS DESIGNED TO RESIST 300 POUND ERECTION AT 18 INCHES FROM COLUMNCENTERLINE

• ERECTION SEATS FOR TWO SIDED BOLTED BEAM CONNECTIONS HAVE BEEN PROVIDED, SEE DWG ST-01.04-103

• HOLES IN STRUCTURE COLUMNS AND PIPE RACK BEAMS FOR SAFETY CABLES HAVE BEEN PROVIDED,SEE DWG ST-01.04-103A/B

• STRUCTURAL BOLT TENSIONING METHODS DEFINED IN SUBCONTRACT PACKAGES AND IMPLEMENTED BYCONSTRUCTION MANAGEMENT QA/QC

FIREPROOFING STRUCTURAL STEEL

• PROJECT HAS DEVELOPED CLIENT APPROVED FIRE POTENTIAL AREAS AND SHOWN THEM ON PLOT PLAN

• OWNER HAS PROVIDED THE NECESSARY HOUR RESISTANCE FOR STRUCTURAL STEEL

• OWNER HAS PROVIDED THE FIREPROOFING SPECIFICATION FOR STRUCTURAL STEEL

• OWNER HAS PROVIDED PIPE RACK AND STRUCTURE LIMITS TO BE FIREPROOFED

• METHOD AND MATERIALS FOR SEALING OF JOINTS HAS BEEN SPECIFIED

ENVIRONMENTAL SAFETY

• CHEMICAL RESISTANT WATERSTOPS HAVE BEEN SPECIFIED AS REQUIRED

• ACI 350 DESIGN HAS BEEN INCORPORATED AS REQUIRED

• LEAK DETECTION DETAILS HAVE BEEN PROVIDED AS REQUIRED- SEE TG 25.04-20

• APPROPRIATE CONTAINMENT HAS BEEN DEFINED AND APPROVED BY CLIENT-SEE TG 25.04-20

• APPROPRIATE PERMITS HAVE BEEN ATTAINED

• CONCRETE COATINGS HAVE BEEN SPECIFIED AND APPROVED

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7.0 ATTACHMENTS

ST-01.04-100- Stairs, Plan

ST-01.04-101- Stairs, Elevation

ST-01.04-101A- Stairs, Handrail Clearance

ST-01.04-101B- Stairs, Toe Plate

ST-01.04-102- Ladder Clearance

ST-01.04-102A- Ladder Orientation and Clearance

ST-01.04-102B- Ladder Clearance

ST-01.04-102C- Guard Rail, Floor Opening/Equip. Support

ST-01.04-103- Steel Erection Details

ST-01.04-103A- Steel Erection, Safety Line Connection

ST-01.04-103B- Steel Erection, Safety Line Connection

8.0 RELATED DOCUMENTS (REFERENCES)

29 CFR PART 1910- Occupational Safety and Health Standards

29 CFR 1926- Safety and Health Regulations for Construction

NFPA 101-Life Safety Code

International Building Code-IBC

NFPA-30- “Flammable and Combustible Liquids Code”

HSE P1.7- Corporate HSE- Design Safety

PI-SOP-350- Health, Safety and Environmental Program

9.0 RECORDS

• Prior to initiation of Project detail design phase, Lead Engineer, Designer and Architect willperform necessary reviews of applicable codes, regulations and client requirements. Squadcheck the SID checklist to Project and other disciplines. Any changes to the SID checklistsuggested by code review or squad check comments must be approved by the CSA DepartmentManager. Post final issued for design document to JPI. Retain commented squad check hardcopy with all subsequent issued revisions and written approvals in project CSA files. Archive hardcopies per CSA Department guidelines.

• Lead Engineer and Lead Designer will schedule a meeting at the beginning of project detaildesign and will review each item in this SID document (edit as necessary for project specificitems) with the CSA team. Lead Engineer will post dated meeting sign-in sheet to JPI. Anyquestions from CSA team that the Leads are not able to resolve shall be brought to the attentionof the CSA Department Manager for resolution. A second SID review meeting will be scheduledat approximately 50% CSA project completion progress to ensure that original team and addedstaff understand the SID requirements and that the requirements are being fully implemented onthe project. Post sign-in sheet to JPI. Retain all original sign-in sheets in project CSA files.

Archive hard copies per CSA Department guidelines.

• Lead Designer will assign himself and/or additional checkers to review each drawing forcompliance with project SID checklist. Final check prints will be noted, dated and initialed bychecker as “Complies with Project SID”. Copies of check prints will be retained in CSA projectfiles and disposed per CSA Department guidelines.

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• Lead Engineer will review CSA Project Design Criteria for compliance with items listed in thirdbullet of item 5.2 and this check list. Note, date and initial squad check copy of Design Criteria“Incorporates Project SID” prior to issuing for squad check and client approval. Retain hard copyof squad check and approval versions with comments and all subsequent issued for designrevisions in CSA project files. Post issued CSA Design Criteria to JPI. Archive hard copies perCSA Department guidelines.

• Lead Architect will perform code check review of all project buildings and major structures forcompliance with items listed in item 5.4 and this checklist. Issue code check review for squadcheck and client approval. Retain hard copy of squad check and approval versions withcomments and all subsequent issued revisions in CSA project files. Post issued code checkreviews to JPI. Archive hard copies per CSA Department guidelines.

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