ANSI TIA-322-2016 Loading Analysis and Design Criteria Related to the Installation Alteration and Maintenance of Communication Structures (EFFECTIVE JANUARY 1 2017).pdf

1、 TIA-322 August 2016Loading, Analysis, and Design Criteria Related to the Installation, Alteration and Maintenance of Communication Structures EFFECTIVE JANUARY 1, 2017 ANSI/TIA-322-2016 APPROVED: AUGUST 22, 2016 NOTICE TIA Engineering Standards and Publications are designed to serve the public inte

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29、ENTS WOULD NOT BE PUBLISHED BY TIA WITHOUT SUCH LIMITATIONS. ANSI/TIA-322 3 DEDICATION Ernest (Ernie) R. Jones, P.E. This Standard is dedicated to the memory of Ernest (Ernie) R. Jones, P.E. Ernie was a tireless worker for the industry and never hesitated to share his extensive knowledge to prolifer

30、ate understanding and development within the tower industry. Ernie was brilliant yet humble, and a true servant to others. His work ethic was unmatched and he never said no when approached for help. He was a driving force in the development of the initial ANSI/TIA-1019, 2004 Gin Pole Standard, leadi

31、ng the research and technical developments it represented. He continued as co-chairman for the technical section of the ANSI/TIA-1019-A, 2011 Tower Construction Standard. He was a participating member of the TR14.7 Committee of the Telecommunications Industry Association and Electronics Industry Ass

32、ociation since 1986. Ernie was genuine, professional, and deeply respected by all who knew him, and his contributions to the tower industry will long be remembered. ANSI/TIA-322 4 Standard for Loading, Analysis, and Design Criteria Related to the Installation, Alteration, and Maintenance of Communic

33、ation Structures TABLE OF CONTENTS HISTORY . 6 OBJECTIVE 6 SCOPE 6 1.0 GENERAL . 7 1.1 Definitions 7 1.2 Abbreviations 12 1.3 Symbols and Notations 12 2.0 STRUCTURAL CONSIDERATIONS DURING CONSTRUCTION 15 2.1 Scope . 15 2.2 Rigging Plans 15 2.3 Imposed Rigging Loads on Structure 16 2.4 Temporary Supp

34、orts . 16 2.5 Guy Installation . 17 3.0 LIFTING DEVICES . 23 3.1 Scope . 23 3.2 Lifting Block Arrangements 23 3.3 Gin Poles . 23 3.4 Load Charts for Gin Poles . 24 3.5 Special Engineered Lifts . 28 4.0 SUPPORTING STRUCTURE LOADING 41 4.1 Scope . 41 4.2 Design Standards 41 4.3 Structural Loads 41 4.4

35、 Load Combinations . 42 4.5 Construction Duration Wind Speeds . 42 5.0 ANALYSIS AND DESIGN OF GIN POLES . 44 5.1 Scope . 44 5.2 Gin Pole Classifications . 44 5.3 Design Method 44 ANSI/TIA-322 5 5.4 Impact Factors for Gin Poles . 45 5.5 Load Combinations . 45 5.6 Reactions . 46 5.7 Analysis Models 46

36、 5.8 Overall Stability . 47 5.9 Connections 48 5.10 Rooster Head . 48 5.11 Generation of Standard Load Charts for Vertical or Near Vertical Gin Poles. 49 6.0 GIN POLE CONSTRUCTION . 55 6.1 Scope . 55 6.2 Fabrication, Repair or Modification . 55 6.3 Identification 56 6.4 Repair or Modification 56 ANN

37、EX A: GIN POLE PROCUREMENT AND USER GUIDELINES (NORMATIVE) 57 ANNEX B: GIN POLE STABILITY (NORMATIVE) 58 ANNEX C: EVALULATION OF EXISTING GIN POLES (NORMATIVE) . 62 ANNEX D: WIRE ROPE END CONNECTIONS (NORMATIVE) 63 ANNEX E: REFERENCES (INFORMATIVE) . 68 Notes: 1. Normative annexes are integral parts

38、 of the Standard which for reasons of convenience are placed after other requirements of the Standard. 2. Informative annexes contain additional information and are not considered parts of the Standard. ANSI/TIA-322 6 HISTORY The criteria for loading, analysis and design, along with means and method

39、s criteria related to the construction, installation, alteration and maintenance of communication structures were originally contained in the ANSI/TIA-1019-A standard, “Standard for Installation, Alteration and Maintenance of Antenna Supporting Structures and Antennas”. In response to industry initi

40、atives, separate standards have been developed to provide greater clarity to the industry stakeholders. Loading, analysis and design provisions are now contained in this Standard and means and methods provisions related to construction are now contained in the ANSI/ASSE A10.48 standard, “Criteria fo

41、r Safety Practices with the Construction, Demolition, Modification and Maintenance of Communication Structures.” OBJECTIVE The objective of this Standard is to provide minimum loading, analysis and design criteria related to the installation, alteration and maintenance of communication structures. T

42、he intent is to address the strength and stability requirements based on information provided by the owner or the contractor for a proposed construction or maintenance activity. In addition, structural requirements for lifting devices are provided along with load chart requirements. This Standard is

43、 based on the information contained in a rigging plan provided by the contractor and/or owner as required in the ANSI/ASSE A10.48 standard. The recommendations based on a structural analysis in accordance with this Standard by a qualified engineer for a communication structure is not intended to be

44、construed as a review or approval of the means and methods outlined in a rigging plan proposed for a construction or maintenance activity. Information contained in this Standard was obtained from available sources and represents, in the judgment of the committee, the accepted industry minimum standa

45、rd for criteria related to the installation, alteration and maintenance of communication structures. While it is believed to be accurate, this information should not be relied upon for a specific application without competent professional examination and verification of its accuracy, suitability, an

46、d applicability. SCOPE The scope of this Standard is limited to providing engineering criteria to evaluate strength and stability requirements related to the installation, alteration and maintenance of communication structures, based on construction loads as defined in a rigging plan prepared in acc

47、ordance with the ANSI/ASSE A10.48 standard. Additionally, the scope includes design criteria for lifting devices and the generation of their load charts. The means and methods related to construction are not within the scope of this Standard. ANSI/TIA-322 7 This Standard provides criteria based upon

48、 both Load and Resistance Factor Design (LRFD) and Allowable Stress Design (ASD) methods. Figures and drawings in this Standard are for illustration purposes only and are not intended to represent all potential aspects of construction. 1.0 GENERAL 1.1 Definitions Allowable Stress Design: a design me

49、thod utilizing working loads where the design strength of a structural component is equal to its minimum ultimate strength divided by a safety factor. Basket: the lower support of a gin pole providing both vertical and horizontal support. Bridle: (Collar) the upper support of a gin pole providing horizontal support. Charted Value: a value tabulated in a load chart. Communication Structure: a structure used for transmitting or receiving electronic communication or broadcast signals. Construction: field activities related to the installation, alteration or maintenance of antenn