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Delivery: <= 8 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 38591-2020: Standard for seismic resilience assessment of buildings Status: Valid
Basic dataStandard ID: GB/T 38591-2020 (GB/T38591-2020)Description (Translated English): Standard for seismic resilience assessment of buildings Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: P15 Classification of International Standard: 91.120.25 Word Count Estimation: 66,648 Date of Issue: 2020-03-31 Date of Implementation: 2021-02-01 Quoted Standard: GB 50009; GB 50010; GB 50011 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration Summary: This standard specifies the requirements for building seismic toughness evaluation, building damage status determination, building repair cost calculation, building repair time calculation, casualty calculation, and building seismic toughness grade evaluation. This standard applies to the seismic toughness evaluation of new and existing buildings. GB/T 38591-2020: Standard for seismic resilience assessment of buildings---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.Standard for seismic resilience assessment of buildings ICS 91.120.25 P15 National Standards of People's Republic of China Evaluation standard of building seismic toughness 2020-03-31 release 2021-02-01 implementation State Administration of Market Supervision and Administration Issued by the National Standardization Management Committee ContentsForeword I 1 Scope 1 2 Normative references 1 3 Terms and definitions 1 4 Requirement 2 4.1 Main content of the evaluation 2 4.2 Evaluation principles and methods 3 4.3 Conclusion of the evaluation 3 5 Judgment of building damage status 3 5.1 General requirements 3 5.2 Damage status of structural members 3 5.3 Damage status of non-structural components 3 6 Calculation of building repair costs 4 6.1 General requirements 4 6.2 Calculation of component repair costs 4 6.3 Calculation of building repair costs 4 6.4 Evaluation index of construction restoration cost 4 7 Calculation of building restoration time 5 7.1 General requirements 5 7.2 Calculation method 5 8 Calculation of casualties 7 8.1 Calculation method of casualties 7 8.2 Calculation parameter value 7 8.3 Evaluation index of personnel casualties 8 9 Building seismic toughness rating 9 9.1 Repair cost rating 9 9.2 Repair time rating 9 9.3 Casualty rating 9 9.4 Building seismic toughness grade 9 Appendix A (Normative Appendix) Building Seismic Toughness Rating Process 10 Appendix B (Normative Appendix) Model and Method of Elastoplastic Time History Analysis 12 Appendix C (Normative Appendix) Vulnerability Information of Structural Members 16 Appendix D (informative appendix) The recommended value of engineering demand parameters for conventional structural members is 23 Appendix E (Normative) Non-structural component vulnerability information 28 Appendix F (informative appendix) The recommended value of engineering demand parameters for non-structural components 54 Appendix G (Normative Appendix) Method of Judging the Damage State of Components 62ForewordThis standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard is proposed and managed by the Ministry of Housing and Urban-Rural Development of the People's Republic of China. This standard was drafted by. Tsinghua University, Institute of Standards and Quotas of the Ministry of Housing and Urban-Rural Development, China Academy of Building Research Co., Ltd., Institute of Engineering Mechanics, China Earthquake Administration, Tongji University, Beijing University of Technology, China Architectural Design and Research Institute Co., Ltd., Beijing Tsinghua Tongheng Regulation Planning and Design Institute Co., Ltd., Beijing Architectural Design and Research Institute Co., Ltd., Arup Engineering Consulting (Shanghai) Co., Ltd., Huacheng Boyuan Engineering Technology Group Co., Ltd., Beijing Zhuxinda Engineering Consulting Co., Ltd., China Southwest Architectural Design and Research Institute Co., Ltd., Beijing Construction University, Harbin Institute of Technology, Sinopec Engineering Construction Co., Ltd., Beijing Xinxingao Building Structure Engineering Technology Co., Ltd., Beijing Zhufu Building Research Institute Co., Ltd., Zhejiang Jianke Shock Absorption Technology Co., Ltd., Shandong University of Architecture. The main drafters of this standard. Pan Peng, Wang Tao, Lu Xinzheng, Wang Xiaoting, Zhou Ying, Zhang Lingxin, Wang Changxing, Ji Xiaodong, Liu Peng, Dong You, Xie Linlin, Ma Donghui, Wang Zai, Wang Lijun, Wang Zhitao, Wang Jiaxiang, Fang Dongping, Feng Yuan, Lv Dagang, Zhu Yan, Yang Tao, Zhang Xin, Su Yukun, Li Nan, Li Quanwang, Li Chushu, Chen Xi, Chen Ruijin, Yu Hongxia, Miao Qisong, Luo Kaihai, Zhao Xia, Hao Jiangting, Zhao Linlin, Nie Xin, Huang Shimin, Zhai Changhai. Evaluation standard of building seismic toughness1 ScopeThis standard specifies the requirements for building seismic toughness evaluation, building damage status judgment, building repair cost calculation, and building repair time meter Calculation, personnel casualty calculation, building seismic toughness rating evaluation. This standard applies to the evaluation of seismic toughness of new and existing buildings.2 Normative referencesThe following documents are essential for the application of this document. For dated references, only the dated version applies to this article Pieces. For the cited documents without date, the latest version (including all amendments) applies to this document. GB 50009 Building structure load code GB 50010 Code for design of concrete structures GB 50011 Code for seismic design of buildings3 Terms and definitionsThe following terms and definitions apply to this document. 3.1 Building seismic toughness The ability of the building to maintain and restore the original building function after the earthquake action of the set level. 3.2 Building seismic safety function The building is under the action of a set level of earthquake to ensure the performance of personnel's life safety. 3.3 Basic building function To meet the requirements of building use and maintain the building performance necessary for its normal operation. Note. Including normal use of building space, structural safety and normal operation of equipment. 3.4 Comprehensive building function The building maintains its basic functions and maintains the appearance, interior decoration, and decoration intact. 3.5 Security recovery After the building was restored, its seismic safety function was restored. 3.6 Functional recovery After the building was restored, its basic functions were restored. 3.7 Comprehensive recovery After the building was restored, its comprehensive function was restored. 3.8 Engineering demand parameters The parameters required for building seismic toughness evaluation to characterize building seismic performance. Note. It usually includes the displacement angle between building floors, floor acceleration, etc. 3.9 Building repair costs The direct cost of the building to restore its comprehensive function. 3.10 Building repair time The time required for the building to restore its basic functions under the conditions of materials, personnel and complete equipment required for repair work.4 requirements4.1 The main content of the evaluation 4.1.1 The evaluation of building seismic toughness should include the following. a) The effective building information of the integrated evaluation object should include the area, floor height, room function, personnel distribution, The types, quantities, materials, geometric dimensions, installation methods, etc. of structural and non-structural components; b) Establish a structural model of the evaluation object. For existing buildings, vibration testing should be performed, and the model should be revised according to the test results. Perform elastoplastic time-history analysis under the action of set level earthquake; c) Engineering demand parameters should be extracted from the results of elastoplastic time history analysis; d) According to the engineering requirements parameters, combined with the vulnerability database of structural members and non-structural members, determine the full The damage state of some components; e) According to the damage status of all components of the evaluation object, the repair cost, repair time and the Casualties; f) Comprehensive evaluation of the resistance of the evaluation object under the action of the set level of earthquake repair time, repair time and personnel casualties Earthquake toughness level. See Figure 1 for the evaluation process of building seismic toughness. Figure 1 Flow chart of seismic resistance assessment of buildings 4.1.2 The detailed process of building seismic toughness evaluation is shown in Appendix A. 4.2 Evaluation principles and methods 4.2.1 The evaluation of building seismic toughness should be based on structural elastoplastic time history analysis and the vulnerability database of structural members and non-structural members. Knot See Appendix B for the elastoplastic time-history analysis model and method, and Appendix C and Appendix D for structural component vulnerability database See Appendix E and Appendix F for sex databases. 4.2.2 When establishing the structural model, it should conform to the actual situation of the project, and the material strength should take the strength standard value. 4.2.3 The building seismic toughness evaluation should use the engineering demand parameters obtained from the structural elastoplastic time history analysis of the earthquake under the set level as the basis. 4.2.4 The unit undertaking the evaluation of the seismic toughness of the building shall have the ability to carry out elastoplastic time history analysis and probability analysis of the building structure. 4.3 Conclusion of the evaluation 4.3.1 The conclusion of the seismic toughness evaluation of buildings should be expressed using a star system. From one star to three stars, the level of seismic toughness is gradually increased. 4.3.2 The conclusion of the seismic resistance evaluation of the building should be marked on the prominent position of the building with a special sign, and the content of the sign should include the construction project In addition to the basic information of seismic performance, it should also include toughness grade, adoption standard, evaluation unit and evaluation time.5 Determination of building damage status5.1 General requirements 5.1.1 The determination of building damage status shall determine the damage of structural members and non-structural members according to the vulnerability database of components and engineering requirements parameters Injury state. The fragility data of components is characterized by a probability distribution that varies with engineering demand parameters. Commonly used reinforced concrete structural members, steel See Appendix D and Appendix F for values of engineering requirements of structural components and non-structural components in buildings. 5.1.2 The project demand parameter matrix should be expanded according to Appendix G according to the results of the elastoplastic time history analysis, using a joint lognormal distribution function. 5.1.3 All structural components and non-structural components should be considered in the determination of building damage status, and should be based on the vulnerability of the component, the floor and the construction site The types of process demand parameters are grouped into components. 5.1.4 The type and quantity of components should be determined according to the actual situation. 5.2 Damage state of structural members The damage status of structural members should be divided into 5 levels, including. a) Intact (level 0). no damage occurs; b) Minor (Level 1). Only minor damage that affects appearance; c) Mild (level 2). General damage that can restore the original function after a simple repair; d) Moderate (level 3). a serious injury that can restore the original function after conventional repair methods; e) Severe (level 4). Serious damage that affects the load-bearing capacity of the component and requires replacement. 5.3 Damage status of non-structural components The damage status of non-structural components should be divided into 4 levels, including. a) Intact (level 0). no damage occurs; b) Mild (level 1). General damage that can restore the original function after simple repair; c) Moderate (level 2). a more serious injury that can be completely recovered after conventional repair methods; d) Severe (level 3). Serious damage that requires replacement.6 Calculation of building repair costs6.1 General requirements 6.1.1 The comprehensive restoration of all earthquake-damaged components should be evaluated, and the cost of building restoration should be determined by the repair, removal and replacement of earthquake-damaged components. The various direct costs incurred include labor costs, material costs, and machinery costs. 6.1.2 The calculation does not take into account the additional costs incurred by the building's seismic toughness improvement. 6.1.3 The current quota shall be used in the calculation. 6.2 Calculation of component repair costs 6.2.1 The economic loss of the i-th component in the damaged state j in the k-th layer is calculated according to equation (1). 6.2.2 The sum of the repair costs of all components in the same floor should be reduced by considering the impact of the repair works of similar components on the repair costs. And calculate according to formula (2). 6.3 Calculation of construction restoration costs The construction repair cost shall be the sum of the repair costs of various components included in the building, and shall be calculated according to formula (3). 6.4 Evaluation index of construction restoration cost 6.4.1 The ratio of building repair cost to construction cost should be used as the evaluation index of building repair cost, and calculated according to formula (4). 6.4.2 The construction cost of the building shall be the total cost required for the construction of the target building, and shall be calculated according to formula (5) according to the current quota.7 Calculation of building restoration time7.1 General requirements 7.1.1 The repair time of the building should be included in the repair time required for all seismically damaged components to complete the functional recovery of the building. 7.1.2 Construction restoration time should not be included in the construction of earthquake damage assessment, restoration plan formulation, restoration material procurement, construction equipment rental, etc. The time it takes before the preparation. 7.2 Calculation method 7.2.1 When calculating the restoration time of a building, the sequence of the main restoration work of the building between floors and floors should be considered, and it should meet the following Claim. a) The main repair work of the building should include repair of structural members, repair of enclosure members, repair of partition members, suspended ceilings and auxiliary members Repair, pipeline repair, large equipment repair, stair repair, elevator repair. b) Repair work on different floors can be started at the same time. c) In the same floor, the main repair work should be divided into two stages according to the start time. The first stage of repair work is structural component repair Rehabilitation of complex stairs; the second stage of repair work includes repair of enclosure members, repair of partition members, repair of suspended ceilings and auxiliary members, pipe repair Line repair, large equipment repair and elevator repair. After the first stage of repair work is completed, the second stage of repair work can be started. d) The main repair work of the first stage should start at the same time. In the second stage of repair work, except for the repair of partition members and the suspended ceiling and attached In addition to the repair of components, the main repair work should be started at the same time; repair of pipelines, repair of partition components and repair of suspended ceilings and auxiliary components Should be carried out in sequence. e) The repair time of the elevator should be evaluated based on the maximum floor acceleration response. The repair time of each floor should be considered the elevator repair time. f) The repair time of building earthquake damage should be in accordance with the order of main repair work, and take the longest combination of main repair work as the Evaluation index of building restoration time. 7.2.2 The repair time of each major repair work shall be calculated according to the following principles and methods. a) For components under different damage states, the time required to achieve the functional recovery goal should be repaired by a single worker to complete this work When expressed, the values are shown in Table C.11 and Table E.8. b) The repair time of the same type of damaged components in the same layer should be based on the number of them, considering the positive effects of scale effect and efficiency improvement Sound, and the influence of the height of the floor on the repair time should be considered, calculated according to equation (6). Table 1 Number of workers in a single floor unit area or a single seismic damage equipment e) The total number of workers that can be accommodated simultaneously in a single floor of a building should not exceed the maximum capacity of a single-storey worker on the k-th floor calculated according to equation (9). If it is exceeded, it is advisable to adjust the number of workers in the k-th layer of the main repair work NWi, k, and to ensure the order of the main repair work The sequence still complies with the provisions of 7.2.1. f) The repair time of the main repair work of the kth layer is calculated according to formula (10). g) The repair time required for the building to complete all the main repair work is calculated according to formula (11) ~ formula (13).8 Calculation of casualties8.1 Calculation method of casualties The number of casualties can be calculated according to formula (14) and formula (15). 8.2 Values of calculation parameters 8.2.1 The indoor personnel density on the kth floor ζk can be taken according to the actual personnel density of the building being evaluated, or according to the function of the house on the floor. Table 2 and formula (16) are determined. 8.2.2 The floor damage level shall be determined according to the following methods. a) The floor damage level r is divided into Ⅰ~Ⅴ levels, which in turn indicate that the floor is intact, minor damage, mild damage, moderate damage, severe State of destruction; b) Each layer of the building is in a specific damage state according to the structural members in the layer or non-structural members such as filled walls and suspended ceilings that can cause casualties The proportion of the number to the respective total is determined according to Table 3, and the destruction level is determined according to Table 3. Table 3 Judgment Criteria of Floor Destruction Level Non-structural components that can cause casualties due to structural members of the floor destruction level The number of components whose damage status is not greater than level 1 accounts for 100% The proportion of components with damage level 1 does not exceed 10%, and does not appear Components with damage level exceeding 1 The proportion of components with damage level 2 does not exceed 10%, and No components with damage status greater than 2 The proportion of components with damage level 1 does not exceed 30%, and does not appear Components with damage status greater than level 1 The proportion of components with damage level 2 does not exceed 20%, and The proportion of components with damage level 3 does not exceed 10%, and No damage level 4 components The structure with seismic damage does not exceed 50%, and the damage state is 2 The proportion of parts does not exceed 10%, and there is no component with a damage state exceeding 2 levels The proportion of components with damage level 2 does not exceed 50%, and The proportion of components with damage level 3 does not exceed 20%, and The proportion of components with damage level 4 do......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 38591-2020_English be delivered?Answer: Upon your order, we will start to translate GB/T 38591-2020_English as soon as possible, and keep you informed of the progress. 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