GY/T 328-2020 English PDFUS$949.00 · In stock
Delivery: <= 6 days. True-PDF full-copy in English will be manually translated and delivered via email. GY/T 328-2020: (Technical specification for operation and maintenance of radio and television steel tower mast) Status: Valid
Basic dataStandard ID: GY/T 328-2020 (GY/T328-2020)Description (Translated English): (Technical specification for operation and maintenance of radio and television steel tower mast) Sector / Industry: Radio, Film & TV Industry Standard (Recommended) Word Count Estimation: 38,317 Date of Issue: 2020-07-28 Date of Implementation: 2020-07-28 Regulation (derived from): Broadcasting-TV announcement (2020) No. 52 Issuing agency(ies): State Administration of Radio and Television GY/T 328-2020: (Technical specification for operation and maintenance of radio and television steel tower mast)---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order. Technical specification for operation and maintenance of radio and TV steel tower and mast GY The People's Republic of China Radio, Television and Network Audiovisual Industry Standards Technical specification for operation and maintenance of radio and television steel tower mast 2020-07 -28 released 2020 -07 -28 implementation Issued by the State Administration of Radio and Television Table of contentsForeword...III 1 Scope...1 2 Normative references...1 3 Terms and definitions...1 4 Basic regulations...3 5 Routine Inspection and Maintenance...4 5.1 Foundation...5 5.2 Superstructure...5 5.3 Containment system...6 5.4 Lightning protection grounding...6 5.5 Health Monitoring...7 6 Testing and Evaluation...7 6.1 General regulations...7 6.2 Foundation inspection...8 6.3 Superstructure inspection...8 6.4 Inspection of enclosure system...10 6.5 Lightning protection grounding detection...10 6.6 Safety assessment...11 7 Professional maintenance...11 7.1 General regulations...11 7.2 Foundation...11 7.3 Superstructure...12 7.4 Containment system...13 7.5 Lightning protection grounding...14 8 Reinforcement...15 8.1 General provisions...15 8.2 Materials...15 8.3 Loads and effects...15 8.4 Basic rules for structural analysis...15 8.5 Basic methods of reinforcement...16 9 Acceptance...17 10 Retirement...17 Appendix A (informative appendix) Daily inspection and maintenance record table...18 Appendix B (Normative Appendix) Testing and Evaluation Period and Table of Contents...22 Appendix C (Normative Appendix) Professional Maintenance Record Form...25 Appendix E (informative appendix) The main forms of increasing the section of a member...30 Appendix F (Informative Appendix) Acceptance Record Form...31ForewordThis standard was drafted in accordance with the rules given in GB/T 1.1-2009. Please note that certain contents of this document may involve patents. The issuing agency of this document is not responsible for identifying these patents. This standard is under the jurisdiction of the National Radio, Film and Television Standardization Technical Committee (SAC/TC 239). Drafting organizations of this standard. China Broadcasting, Film and Television Design and Research Institute, National Radio and Television Administration Bureau, National Radio General Administration of Television Supervision Center, China Guangjian (Beijing) Tower Safety Technology Co., Ltd., Tongji University Architectural Design and Research Institute (Group) Co., Ltd. Division, Zhejiang Radio and Television Group, Guangxi Radio and Television Technology Center, Xinjiang Uygur Autonomous Region Radio and Television Bureau, Jiangsu Radio and Television Bureau, Liaoning Provincial Press, Publication, Radio, Film and Television Development Research Center, Inner Mongolia Radio and Television Bureau, Shenzhen Radio and Television Transmission Center, Beijing Beiguang Technology Co., Ltd., Xinzheng Hongda Communication Equipment Factory, Qingdao Zhongtian Strong Technology Co., Ltd., Hebei Zhihengda Tower Co., Ltd., Shanghai Ruilaibai Structural Design Office, Qingdao Oriental Tower Co., Ltd., Jiangsu Guohua Tube Tower Manufacturing Co., Ltd. The main drafters of this standard. Xia Daqiao, Tan Xiaozhi, Chen Yuxin, Gu Hongzhou, Ge Chaoqing, Wang Fanglin, Wang Hongru, Wang Qian, Zuo Linsheng, Tian Shuguang, Liu Kuifu, Guan Xingyuan, Wu Jun, Gu Haifeng, Zhang Guangli, Zhang Yang, Zheng Chaohui, Zhao Hailong, Xu Tao, Guo Jianxin, Guo Luming, Cao Xiangdong, Liang Feng, Han Baosheng, Han Yong, Hei Zhenyou, Xie Weichang. Technical specification for operation and maintenance of radio and television steel tower mast1 ScopeThis standard specifies the daily inspection and maintenance, professional maintenance, reinforcement and transformation, and operation of radio and television steel tower mast ("steel tower mast"). Management requirements. This standard applies to the operation and maintenance of radio and television steel tower masts, and other steel tower masts can be used as reference.2 Normative referencesThe following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this document. For undated references, the latest version (including all amendments) applies to this document. GB/T 11345-2013 Ultrasonic testing technology, testing level and assessment for non-destructive testing of welds (ISO 17640.2010, MOD) GB 14907-2018 Steel structure fireproof coating GB/T 21431-2015 Technical Specification for Building Lightning Protection Device Testing GB/T 26952-2011 Weld non-destructive testing Weld magnetic particle testing acceptance level (ISO 23278.2006, MOD) GB 50017-2017 Steel Structure Design Standard GB 50135-2019 Design standard for high-rise structures GB 50205-2001 Code for acceptance of construction quality of steel structure engineering GB 50207-2012 Code for quality acceptance of roofing engineering GB 50208-2011 Code for quality acceptance of underground waterproof engineering GB 50210-2018 Building Decoration Engineering Quality Acceptance Standard GB 50367-2013 Code for design of reinforcement of concrete structures GB/T 50621-2010 Technical standards for on-site inspection of steel structures GB 51203-2016 Code for acceptance of construction quality of high-rise structure engineering GY/T 64 Radio and TV steel tower mast corrosion protection coating GY/T 178-2001 Medium and short wave antenna feeder operation and maintenance regulations GY/T 5034-2015 Design Specification for Medium and Short Wave Broadcast Transmitting Station GY 5062-1998 TV and FM radio transmission (rebroadcast) station (station) design specification GY 5077-2007 Specification for quality acceptance of radio and television microwave communication towers and masts GY/T 5089-2014 Specification for Reliability Testing and Appraisal of Broadcasting and Communication Steel Tower Mast JGJ 8-2016 Building Deformation Measurement Specification JGJ 102-2003 Technical Code for Glass Curtain Wall Engineering JGJ 123-2012 Technical Specification for Foundation Reinforcement of Existing Buildings JGJ/T 139-2001 Glass curtain wall engineering quality inspection standard JGJ/T 324-2014 Standard for testing method of building curtain wall engineering3 Terms and definitionsThe following terms and definitions apply to this document. 3.1 Steel tower and mast Self-standing towers and guyed towers (masts) and their foundations with steel structure as the main stress structure. 3.2 Guyed steel tower (mast) A high-rise steel structure composed of columns and cables. 3.3 Height of tower and mast The vertical distance from the bottom surface of the tower foot bottom plate of the steel tower mast structure to the top surface of the tower top lightning rod installation location. 3.4 Check and measure Check and measure the main technical requirements (including indicators and others) of the steel tower masts that have been completed and delivered. 3.5 Maintenance Inspect the steel tower mast structure that has been completed and delivered, including daily inspection and maintenance, professional maintenance, and reinforcement and transformation. 3.6 Maintenance administrative unit The main unit responsible for the normal operation of the steel tower mast structure. 3.7 Maintenance unit The main unit with relevant qualifications to implement the operation and maintenance of the steel tower mast structure. 3.8 Routine inspect Maintenance personnel conduct periodic routine inspections on steel tower masts. 3.9 Professional maintenance The maintenance unit professionally handles unqualified items or problems in the steel tower mast structure. 3.10 Vertical deviation The distance from the top of the steel tower mast from the center position/tower mast height. 3.11 External hangings Except the antenna feeder, the objects hanging on the steel tower mast, such as lighting devices, warning signs, billboards, etc. 3.12 Enclosure system space enclosing Non-load-bearing envelope structure and building function accessories. 3.13 Super structure The main stress-bearing components and connections in the upper stress structure and the enclosure structure. 3.14 Lightning receptor Metal objects designed to receive direct lightning strikes (lightning flashes).4 Basic regulations4.1 After the steel tower mast structure is accepted and put into use, it should be used according to the design requirements. Without design permission or technical review, no Adding antennas and other facilities to the steel tower mast structure shall not change the original design function of the steel tower mast. 4.2 The operation and maintenance of the steel tower mast structure includes daily inspection and maintenance, inspection and evaluation, professional maintenance and reinforcement transformation. 4.3 Before testing, safety assessment and reinforcement, it should be based on the structural purpose, structural design service life, used life, and the structural service history. History, current situation and future use requirements, comprehensive analysis and determination of testing, evaluation and reinforcement targets. 4.4 The daily inspection and maintenance of the steel tower mast structure can be undertaken by the maintenance personnel, mainly the routine inspection and maintenance of the steel tower mast structure. 4.5 Before the professional maintenance and reinforcement of the steel tower mast structure, a unit with corresponding qualifications should be entrusted to inspect and evaluate the steel tower mast structure. Reinforcement design. 4.6 High-altitude operators should hold corresponding professional qualification certificates and perform construction within the approved scope. 4.7 The steel tower mast structure should be operated and maintained in accordance with the following regulations. a) When the weather wind pressure reaches more than 60% of the design wind pressure, the seismic intensity is more than six degrees, thunderstorms, fires, etc., increase A daily inspection and maintenance; b) The steel tower mast structure should be inspected and evaluated before professional maintenance and reinforcement; c) The maintenance management unit can appropriately increase the frequency of routine inspection and maintenance according to the environment and service life of the steel tower mast to ensure its safety run; d) Refer to Appendix A for daily inspection and maintenance items. 4.8 Safety protection requirements for operation and maintenance of steel tower mast structure. a) The maintenance unit shall establish and improve a safety inspection system and take corrective measures for hidden safety hazards. b) The maintenance unit shall compile targeted safety technology according to different site conditions, equipment conditions, maintenance personnel, maintenance construction season, etc. Measures. c) The maintenance unit should formulate corresponding emergency plans according to the project site conditions, prepare necessary emergency equipment, and conduct necessary emergency Drills and training. d) The maintenance unit shall establish a file for the safety technical data of the maintenance construction site, which shall be managed by a dedicated person. The safety technical data shall be authentic Real, complete and complete. e) Maintenance workers should wear safety helmets and non-slip shoes, fasten safety belts, and check whether the safety belts and hooks are correct before working on the tower. Usually, the tower can only be operated after inspection and confirmation by safety personnel. f) The accumulative time for tower operation during daytime temperature 37℃～40℃ shall not exceed 3h, and tower operation is prohibited when the temperature is higher than 40℃ and above. g) Tower maintenance should not be carried out under the following environmental and climatic conditions. 1) In case of strong high frequency induction at the construction site, effective protective measures have not been taken; 2) The wind force is above level five (including level five); 3) Rain and snow or thunder and lightning near the site; 4) There is icing and frost on the tower; 5) Moments of poor visibility. h) Maintenance of the construction site should be based on the tower type, topography and other environmental factors, determine and divide the construction hazard warning area, and enclose it, A safety net or other safety protection facilities for preventing falling objects should be set up in the restricted area of the construction site. i) During the maintenance and construction of the steel tower mast structure, it is strictly forbidden for operators on the tower to work on the same vertical plane at the same time. If vertical operation is required under special circumstances, It shall be approved by the person in charge of safety, and special protective shelters or other isolation facilities shall be set up between the upper and lower floors as appropriate. j) During the maintenance and construction process, the maintenance unit should pay attention to protecting the safety of all radio and television facilities such as antennas and feeders on the steel tower mast structure. Such as In the event of damage to radio and television facilities, the maintenance unit shall promptly report to the maintenance management unit. 4.9 In the routine inspection and maintenance, it is found that the steel tower mast structure has potential safety hazards, which cannot be eliminated through the routine inspection and maintenance. Correspondingly qualified testing agencies shall conduct testing and evaluation of the steel tower mast structure in accordance with the requirements in Appendix B. 4.10 After the professional maintenance work is completed, the inspection should be carried out in accordance with the work content in Appendix C, and the form C.1 or C.2. 4.11 The operation and maintenance of steel tower masts should be archived. The operation and maintenance data should be complete, continuous and accurate. Establish a safety management system for steel tower mast operation and maintenance including health monitoring. 4.12 Long-term health monitoring should be carried out for steel tower masts under the following conditions. a) When there are serious quality defects or serious corrosion, damage or deformation; b) When it reaches the design service life and intends to continue to use it; c) When you need to continue using it after suffering a serious disaster or accident; d) When the geological conditions are special (such as subsidence area); e) When there is a safety hazard during inspection; f) After the repair and reinforcement work is completed. 4.13 The object of health monitoring for steel tower masts can be the entire tower, foundation or tower body, etc.; monitoring items can include foundation Foundation monitoring, connecting bolt monitoring, tower monitoring; technical means include foundation settlement and displacement monitoring, deformation monitoring, strain monitoring, vibration monitoring Wait. 4.14 The implementation plan and plan for online monitoring of steel tower masts shall be based on the use history, current use situation and future maintenance and use plans of the tower. The client and the implementer are jointly determined. 4.15 Operation and maintenance of steel tower mast structure shall not only meet the requirements of this standard, but also comply with GB 51203-2016 and GY 5077-2007 Relevant provisions in5 Routine inspection and maintenance5.1 Foundation 5.1.1 Routine inspection and maintenance of the foundation of the steel tower mast structure shall include the following. a) Check whether the anchor bolts are loose, missing, or less than 2 buckles exposed; if the nut is loose, tighten it; find that the nut and washer are missing Use nuts and washers of the same specification to make up and tighten; if the exposed thread is less than 2 buckles, entrust a professional maintenance unit to repair it. b) Check whether the second-stage concrete pouring is good. If the concrete is not poured or the pouring fails to meet the design requirements, a professional maintenance unit should be entrusted to handle the Check it once or after the repair is good, keep a record, and perform inspection and maintenance according to the foundation stigma. c) Check whether the foundation is sinking, uplifting, or slipping. If the above conditions are found, the inspection and evaluation unit should be entrusted to conduct a safety assessment. d) Check the protection facilities around the steel tower mast structure and the stability of the slope. If it is found that the slope of the protection facility has landslide, collapse, collapse, For slope instability such as staggering, scouring damage, etc., the inspection and evaluation unit should be entrusted to conduct safety assessment in time, and professional maintenance should be entrusted The unit is repaired. e) Check whether the soil around the foot of the steel tower mast structure has collapsed or bulged; if the ground has collapsed or bulged, if the foundation is not If there is obvious sinking, uplifting, or slipping, the backfill can be compacted and the ground can be redone. If the foundation sinks, uplifted, or slipped significantly If the situation is changed, a testing and evaluation unit should be entrusted to conduct a safety assessment. f) Check whether there is water accumulation around the foundation of the steel tower mast structure; if there is water accumulation, construct drainage ditches and lay scattered water Water surface and other measures to reduce the occurrence of water accumulation, such as the backfill soil elevation is not in place, sinking, etc., you need to fill the soil and compact it before doing a good job Disperse water measures; if the daily inspection and maintenance unit finds more serious problems, they should report to the maintenance unit to entrust a professional maintenance unit to deal with it. g) Check whether there are cracks in the exposed parts of the concrete structure of the steel tower mast structure, tower foot column head and other exposed parts. Entrust professional maintenance unit to repair. h) Check whether the drain hole between the flange chassis and the pile top is blocked. If the drain hole is blocked, it should be cleared in time. 5.1.2 The daily inspection and maintenance of the foundation of the steel tower mast structure built on the roof of the building should add the following contents. a) Check whether the anchoring points of the roof cable towers are firm, and if the anchor points are loose, the inspection and evaluation unit should be entrusted to carry out Safety assessment; check whether the cable is corroded, loose, the number of fixed rope clamps, spacing and tightening conditions. If you have any questions, press the relevant Request for processing. b) Check whether there are new obvious cracks in the roof beam or floor slab where the steel tower mast structure is located, or there is new water seepage phenomenon in the floor. In the above cases, a testing and evaluation unit should be entrusted to conduct a safety assessment, and a professional maintenance unit should be entrusted to repair it. c) Check whether the concrete structu......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GY/T 328-2020_English be delivered?Answer: Upon your order, we will start to translate GY/T 328-2020_English as soon as possible, and keep you informed of the progress. The lead time is typically 4 ~ 6 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of GY/T 328-2020_English with my colleagues?Answer: Yes. The purchased PDF of GY/T 328-2020_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.Question 3: Does the price include tax/VAT?Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countriesQuestion 4: Do you accept my currency other than USD?Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay. |
