1、*USACE / NAVFAC / AFCESA / NASA UFGS-05 05 23 (November 2008)-Preparing Activity: USACE SupersedingUFGS-05 05 23 (July 2007)UNIFIED FACILITIES GUIDE SPECIFICATIONSReferences are in agreement with UMRL dated October 2008*SECTION TABLE OF CONTENTSDIVISION 05 - METALSSECTION 05 05 23WELDING, STRUCTURAL
2、11/08PART 1 GENERAL1.1 REFERENCES1.2 DEFINITIONS1.2.1 Class 1 Weld Joints1.2.2 Class 2 Weld Joints1.2.3 Class 3 Weld Joints1.2.4 Class 4 Weld Joints1.2.5 Class 5 Weld Joints1.2.6 Class 6 Weld Joints1.3 SYSTEM DESCRIPTION1.3.1 Pre-erection Conference1.3.2 Mock-up Model1.4 SUBMITTALS1.5 QUALITY ASSURA
3、NCE1.5.1 General Requirements1.5.2 Previous Qualifications1.5.3 Pre-qualified Procedures1.5.4 Retests1.5.5 Welder, Welding Operator, and Tacker Qualification1.5.5.1 Previous Personnel Qualifications1.5.5.2 Certificates1.5.5.3 Renewal of Qualification1.5.6 Inspector Qualification1.5.7 Symbols and Saf
4、etyPART 2 PRODUCTS2.1 WELDING EQUIPMENT AND MATERIALSPART 3 EXECUTION3.1 WELDING OPERATIONS3.1.1 Requirements3.1.2 Identification3.2 QUALITY CONTROLSECTION 05 05 23 Page 1Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-3.3 STANDARDS OF ACCEPTANCE3.3.
5、1 Nondestructive Examination3.3.2 Destructive Tests3.4 GOVERNMENT INSPECTION AND TESTING3.5 CORRECTIONS AND REPAIRS- End of Section Table of Contents -SECTION 05 05 23 Page 2Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-*USACE / NAVFAC / AFCESA / N
6、ASA UFGS-05 05 23 (November 2008)-Preparing Activity: USACE SupersedingUFGS-05 05 23 (July 2007)UNIFIED FACILITIES GUIDE SPECIFICATIONSReferences are in agreement with UMRL dated October 2008*SECTION 05 05 23WELDING, STRUCTURAL11/08*NOTE: This guide specification covers the requirements for (1) qual
7、ifying welding procedures, welders and welding operators, and (2) the fabrication, welding and inspection of carbon steel, low alloy steel, extra-high-strength quenched and tempered low alloy steels, and austenitic stainless steel materials for structural steel for buildings, other structures and no
8、n-structural use.Edit this guide specification for project specific requirements by adding, deleting, or revising text. For bracketed items, choose applicable items(s) or insert appropriate information.Remove information and requirements not required in respective project, whether or not brackets ar
9、e present.Comments and suggestions on this guide specification are welcome and should be directed to the technical proponent of the specification. A listing of technical proponents, including their organization designation and telephone number, is on the Internet.Recommended changes to a UFGS should
10、 be submitted as a Criteria Change Request (CCR).*PART 1 GENERAL*NOTE: This section should not be included in NAVFAC projects. This specification can be used for other structures with similar types of live loads by implementing the requirements of AWS D1.1/D1.1M, as applicable, in the design of the
11、weldments, and deleting the references to AISC Specification for the Design, Fabrication and Erection of Structural Steel for Buildings.*SECTION 05 05 23 Page 3Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-1.1 REFERENCES*NOTE: This paragraph is use
12、d to list the publications cited in the text of the guide specification. The publications are referred to in the text by basic designation only and listed in this paragraph by organization, designation, date, and title.Use the Reference Wizards Check Reference feature when you add a RID outside of t
13、he Sections Reference Article to automatically place the reference in the Reference Article. Also use the Reference Wizards Check Reference feature to update the issue dates.References not used in the text will automatically be deleted from this section of the project specification when you choose t
14、o reconcile references in the publish print process.*The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.AMERICAN INSTITUTE OF STEEL CONSTRUCTION (AISC)AISC 360 (2005) Specification f
15、or Structural Steel Buildings, with CommentaryAMERICAN SOCIETY FOR NONDESTRUCTIVE TESTING (ASNT)ASNT RP SNT-TC-1A (2006) Recommended PracticeAMERICAN WELDING SOCIETY (AWS)AWS A2.4 (2007) Standard Symbols for Welding, Brazing and Nondestructive ExaminationAWS A3.0 (2001) Standard Welding Terms and De
16、finitions Including Terms for Adhesive Bonding, Brazing, Soldering, Thermal Cutting and Thermal SprayingAWS D1.1/D1.1M (2008) Structural Welding Code - SteelAWS D1.3/D1.3M (2008) Structural Welding Code - Sheet SteelAWS D1.4/D1.4M (2005; Errata 2005) Structural Welding Code - Reinforcing SteelAWS D1
17、4.1/D14.1M (2005) Welding Industrial and Mill Cranes and Other Material Handling EquipmentAWS D14.4/D14.4M (2005) Welded Joints for Machinery and SECTION 05 05 23 Page 4Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-EquipmentAWS Z49.1 (2005) Safety
18、in Welding, Cutting and Allied ProcessesASTM INTERNATIONAL (ASTM)ASTM E 165 (2002) Standard Test Method for Liquid Penetrant ExaminationASTM E 709 (2008) Standard Guide for Magnetic Particle Examination1.2 DEFINITIONSDefinitions of welding terms are in accordance with AWS A3.0. The following classif
19、ications Class 1 (highest class) to Class 6 (lowest class) indicate the projects class(es) of weld joints.1.2.1 Class 1 Weld JointsThis covers complete penetration weld joints only. These weld joints apply where failure would cause a loss of the system and/or be hazardous to personnel. Class 1 weld
20、joints are highly stressed (dynamic and cyclic loading) and characterized as a single point of failure with no redundancy for the redistribution of stress into another member.1.2.2 Class 2 Weld JointsThis covers both complete and partial penetration groove weld joints and fillet weld joints. These w
21、eld joints apply where failure would reduce the overall efficiency of a system but loss of the system or a hazard to personnel would not be experienced.1.2.3 Class 3 Weld JointsThis covers both complete and partial penetration groove weld joints and fillet weld joints. These weld joints apply where
22、failure would not affect the efficiency of a system nor create a hazard to personnel. Class 3 weld joints are connections of secondary members not subject to dynamic action and/or low stressed miscellaneous applications.1.2.4 Class 4 Weld JointsThis covers weld joints applicable to welding reinforci
23、ng steel to primary structural members.1.2.5 Class 5 Weld JointsThis covers weld joints applicable to welding concrete reinforcing steel splices (prestressing steel excepted), steel connection devices, and inserts and anchors required in concrete construction.1.2.6 Class 6 Weld JointsThis covers plu
24、g and slot weld joints as applicable to the requirements of the projects code(s).SECTION 05 05 23 Page 5Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-1.3 SYSTEM DESCRIPTION*NOTE: The drawings should be checked to ensure that any supplementary infor
25、mation required by the paragraph has been shown and that there is no conflict between the drawings and the specifications. Complete information about location, type, size, and extent of all welds and nondestructive testing, where required, must be clearly shown on the drawings. When welding is to be
26、 covered by more than one section in the contract specifications, this section covers all structural welding; the other sections cover the utilities or special equipment required inside the structure. Welding of utilities or special equipment to structural members must be done carefully so that the
27、overall structure is not weakened. The extent of welding required must be clearly shown on drawings or covered by the contract specification. Revise this paragraph to clearly define the welding that is covered. Drawings or other section of the specifications must specify the strength of the base mat
28、erial.Drawings or the text of the contract specifications must specify the weld requirements: tensile strength, elongation, shear strength, size, length, type, and location.*Conform the design of welded connections to AISC 360, unless otherwise indicated or specified. Material with welds will not be
29、 accepted unless the welding is specified or indicated on the drawings or otherwise approved. Perform welding as specified in this section, except where additional requirements are shown on the drawings or are specified in other sections. Do not commence welding until welding procedures, inspectors,
30、 nondestructive testing personnel, welders, welding operators, and tackers have been qualified and the submittals approved by the Contracting Officer. Perform all testing at or near the work site. Each Contractor performing welding shall maintain records of the test results obtained in welding proce
31、dure, welder, welding operator, and tacker performance qualifications.1.3.1 Pre-erection Conference*NOTE: ASTM A 992 steel must be used for all buildings which have groove welds in their lateral force resisting systems, and are either in Seismic Design Categories D, E and F or in Category C and are
32、Seismic Use Group III; this and the following paragraph will be retained for this type of buildings.Government personnel attending the pre-erection conference should include all field Quality Assurance (QA) inspectors, the building designer, the Engineer of Record (EOR) (if different from the SECTIO
33、N 05 05 23 Page 6Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-designer) and the Project Manager (PM).*Hold a pre-erection conference prior to the start of the field welding, to bring all affected parties together and to gain a naturally clear unde
34、rstanding of the project and the Welding Procedure Specifications (WPS) (which the Contractor shall develop and submit for all welding, including welding done using pre-qualified procedures). Mandatory attendance is required by all Contractors welding production and inspection personnel and appropri
35、ate Government personnel. Include as items for discussion: responsibilities of various parties; welding procedures and processes to be followed; welding sequence (both within a joint and joint sequence within the building); inspection requirements and procedures, both visual and ultrasonic; welding
36、schedule; fabrication of mock-up model; and other items deemed necessary by the attendees.1.3.2 Mock-up Model*NOTE: Building designer must designate, on the drawings, a joint to be used as a mock-up model. This model must represent a critical, but typical, field welded groove joint connection locate
37、d at or near where a properly sequenced erection pattern starts.*Perform first the field-welded connection designated as the mock-up model on the drawings. All welders qualified and designated to perform field-welded groove joints must be present during the welding of the mock-up model connections a
38、nd each one shall perform a part of the welding. Simulate with the mock-up test all physical and environmental conditions that will be encountered during the welding of all groove joints. Execute all inspection procedures required for groove welded joints, including NDE tests, on the mock-up model.
39、All Contractor inspection and testing personnel designated to perform QC of groove welded joints must be present during the welding of the mock-up model and each one shall perform the inspection procedures to be performed on production welding of these joints. This mock-up model connection represent
40、s the standard of performance, both for the welding and inspection procedures used and the results to be achieved in the production welding for these groove welded joints.1.4 SUBMITTALS*NOTE: Review submittal description (SD) definitions in Section 01 33 00 SUBMITTAL PROCEDURES and edit the followin
41、g list to reflect only the submittals required for the project. Submittals should be kept to the minimum required for adequate quality control.A “G” following a submittal item indicates that the submittal requires Government approval. Some submittals are already marked with a “G”. Only delete an exi
42、sting “G” if the submittal item is not complex and can be reviewed through the Contractors Quality Control system. Only add a “G” if the submittal is sufficiently important or complex in SECTION 05 05 23 Page 7Provided by IHSNot for ResaleNo reproduction or networking permitted without license from
43、IHS-,-,-context of the project.For submittals requiring Government approval on Army projects, a code of up to three characters within the submittal tags may be used following the “G“ designation to indicate the approving authority. Codes for Army projects using the Resident Management System (RMS) a
44、re: “AE“ for Architect-Engineer; “DO“ for District Office (Engineering Division or other organization in the District Office); “AO“ for Area Office; “RO“ for Resident Office; and “PO“ for Project Office. Codes following the “G“ typically are not used for Navy, Air Force, and NASA projects.Choose the first bracketed item for Navy, Air Force and NASA projects, or choose the second bracketed item for Army projects.*Government approval
