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国家标准《水工建筑物抗震设计标准》

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2020年中国水利水电科学研究院英文年报已经发布,现以双语的形式连续推出2020年度中国水利水电科学研究院科技创新代表性成果,以及荣获院科技进步奖的部分成果,与国内外专家学者分享。

IWHR 2020 Annual Report has been released. Starting from today, we will present in succession the 2020 IWHR Innovation Project and the representative projects of 2020 IWHR Science and Technology Award in the form of bilingual extracts, for the reference of experts at home and abroad.

国家标准《水工建筑物抗震设计标准》
National Standard for Seismic Design of Hydraulic Structures

主要完成人:陈厚群、李德玉、胡晓、刘小生、王海波、赵剑明、张艳红、张伯艳、王钟宁、涂劲、李敏、张翠然、欧阳金惠、马怀发

Main Participants: CHEN Houqun, LI Deyu, HU Xiao, LIU Xiaosheng, WANG Haibo, ZHAO Jianming, ZHANG Yanhong, ZHANG Boyan, WANG Zhongning, TU Jin, LI Min, ZHANG Cuiran, OUYANG Jinhui, MA Huaifa

研究背景

Background
汶川地震后,为贯彻国家对最大可信地震下大坝不溃坝要求,确保国家公共安全,在凝练汶川地震震害经验及水工建筑物抗震科研成果基础上,编制本标准。

After the Wenchuan earthquake, in order to meet the state’s requirement that the dam does not break under the maximum credible earthquake and ensure national public safety, this standard is developed on the basis of lessons learned from Wenchuan earthquake and seismic research achievements of hydraulic structures.

研究内容

Contents
采用以分项系数表达的极限状态设计方法,对各类水工建筑物给出了相应的抗震结构系数γd值。

Using the ultimate limit state design method expressed by the partial factor to calculate the seismic structural factor γd for various hydraulic structures.

修订了对一般工程地震动输入中依据的基岩标准设计反应谱的参数取值。

Revising the parameters of standard design response spectrum on bedrock for ordinary engineering.咩票优惠电影票www.miepiao.com共丢废品回收网www.gongdiu.com设计软件自学网www.3c1x.com

增加了对工程抗震设防类别为甲类的水工建筑物,应按确定性方法或基准期100年内超越概率P100为0.01的概率法确定场址“最大可信地震”,对在遭受场址最大可信地震时不发生库水失控下泄的灾变进行专门研究的要求。

Adding the requirement that the site’s maximum credible earthquake should be determined according to the deterministic method or the probability method with an exceeding probability of 1% within 100 years of the reference period for the hydraulic structures with the engineering seismic protection category A, and that the special demonstration on its safety margin under maximum credible earthquake shall be carried out on disaster prevention of the uncontrolled release of reservoir.

规定了抗震甲类设防的混凝土重力坝和拱坝工程的动力分析考虑因素。

Specifying the dynamic analysis considerations of concrete gravity dam and arch dam with seismic protection category A.

规定了对土石坝应同时用有限元法对坝体和坝基进行动力分析和安全评价的要求。

Stipulating that the dynamic analysis and safety evaluation using finite element method should be conducted for dam body and its foundation of embankment dam.

修订了大坝混凝土动态强度及弹性模量的标准值取值。

Revising the characteristic values of dynamic strength and elastic modulus of dam concrete.

增加了渡槽、升船机和边坡的抗震设计规定。

Adding the seismic design rules for aqueducts, ship lifts and slopes.

研究成果

Achievements
制定了在设计地震作用下,大坝仅出现可以修复的损伤、在最大可信地震作用下,不发生溃坝的大坝抗震二级设防框架。

Having developed the seismic prevention framework with two levels for important dam in which only repairable dam damage occurs under the design seismic action, and no uncontrolled release of reservoir water occurs under the maximum credible earthquake.

提出了对工程抗震设防类别为甲类的水工建筑物采用设定地震方法确定场地相关设计反应谱的方法,以及对于“近断裂大震”情况下采用考虑面源破裂过程确定最大可信地震的方法。(图1)

Having proposed the method of determining the site-specific design response spectrum by scenario earthquake method for hydraulic structures with seismic protection category A and the method of determining the maximum credible earthquake by considering the surface source rupture process under the condition of large near-fault earthquake. (Fig. 1)

提出了一种依据混凝土试验资料构建的大坝混凝土动态损伤本构模型,自主研发了基于区域分解算法和高性能计算平台的的混凝土坝体—地基体系地震损伤破坏分析并行计算程序。(图2)

Having put forward a constitutive model for dam concrete dynamic damage based on concrete test data and independently developed a parallel computing program for seismic damage and failure analysis of concrete dam -foundation system based on domain decomposition algorithm and high performance computing platform. (Fig. 2)

揭示了最大可信地震下大坝的破坏机理及其相应的抗震安全极限状态,构建了大坝最大可信地震下“不溃坝”的定量评价指标体系。(图3)

Having revealed the failure mechanism and corresponding seismic safety limit state of the dam under the maximum credible earthquake and built the quantitative evaluation index system of no uncontrolled release of reservoir water under the maximum credible earthquake. (Fig. 3)

应用

Application
已推广应用到三峡电站、溪洛渡电站、乌东德电站、白鹤滩电站、旭龙电站、奔子栏电站、叶巴滩电站、两河口电站、双江口电站、锦屏一级、大岗山水电站、孟底沟水电站、鲁地拉电站、龙羊峡电站等国内已建150m以上高坝抗震安全复核以及在建全部高坝的抗震设计。

These achievements have been applied to the seismic safety review of China’s high dams over 150m, including the Three Gorges Hydropower Station,  Xiluodu Hydropower Station, Wudongde Hydropower Station, Baihetan Hydropower Station, Xulong Hydropower Station, Benzilan Hydropower Station, Yebatan Hydropower Station, Lianghekou Hydropower Station, Shuangjiangkou Hydropower Station, Jinping I Hydropower Station, Dagangshan Hydropower Station, Mengdigou Hydropower Station, Ludila Hydropower Station, Longyangxia Hydropower Station, as well as the seismic design of high dams under construction in China.CAD软件素材教程下载www.9npx.com四五设计网www.45te.com设计学徒自学网www.sx1c.com

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