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（1 中核能源科技有限公司， 北京 100193； 2 大連理工大學建設(shè)工程學部， 大連 116024）
［摘要］對中國規(guī)范與美國規(guī)范中核安全相關(guān)混凝土結(jié)構(gòu)抗震措施進行了對比分析。結(jié)果表明，中美規(guī)范核安全相關(guān)鋼筋混凝土抗震設(shè)計對混凝土和鋼筋材料的要求基本相同，框架梁縱筋最小配筋率、最大配筋率及最小配箍率、框架梁加密區(qū)的長度也基本相同，框架梁實現(xiàn)“強剪弱彎”的能力接近；框架柱縱向鋼筋最小配筋率與美國規(guī)范的相當，最大配筋率比美國規(guī)范略小，框架柱普通箍筋最小體積配箍率與美國規(guī)范相比有大有小，框架柱抗震實現(xiàn)“強剪弱彎”的能力是相近的；中國規(guī)范實現(xiàn)“強柱弱梁”的能力比美國規(guī)范的高。中美規(guī)范框架節(jié)點區(qū)箍筋間距和箍筋最小直徑均與框架柱的一致，中國規(guī)范框架節(jié)點的抗剪安全度比美國規(guī)范的略高。中國規(guī)范抗震墻的最小配筋率與美國規(guī)范是相同的。鋼筋抗震錨固長度相差不大。
［關(guān)鍵詞］核電廠； 混凝土結(jié)構(gòu)； 抗震措施； 規(guī)范； 對比分析
中圖分類號：文獻標識碼：A文章編號：1002-848X(2018)16-0036-08
Comparative study on seismic detailing of concrete structures of nuclear power plant in Chinese and American codes
Sun Yunlun1, Li Jianbo2, Gong Jinxin2, Wan Guangze2
(1 Chinergy Co., Ltd., Beijing 100193, China; 2 Faculty of Infrastructure Engineering, Dalian University of Technology, Dalian 116024, China)
Abstract:A comparative analysis was made on seismic detailing of concrete structures of nuclear power plant based on Chinese and American codes. It is revealed that for the seismic design of the reinforced concrete, the requirements for the concrete and steel rebar material are similar in the two codes. The minimum and maximum percentage of the longitudinal steel, the minimum percentage of the stirrup and the highly confined region of the frame beam are basically the same. The ability of achieving “strength shear and weak bending”of the frame beam is in the same level. For the columns of the frame, the minimum percentage of the longitudinal steel is roughly equal and the maximum percentage of longitudinal steel is somewhat less than that in American code. The volume percentage of the stirrup of the frame column is less or larger than that in American code. The ability of achieving “strength shear and weak bending” of the frame column is in the same level and the ability of fulfilling “strength column and weak beam” in Chinese code is higher than that in American code. The requirement for minimum spacing and diameter of stirrups in frame joint region are identical to that for frame column in both Chinese code and American code. The stirrup spacing and minimum diameter of frame node area is consisitent with frame column. For the joints of the frame, the shear capacity in Chinese code is larger than that in American code. For the shear wall, the minimum percentage of the longitudinal steel is equal. The anchorage length of the longitudinal steel is roughly the same.
Keywords:nuclear power plant; reinforced concrete structure; seismic detailing; code; comparative analysis
*國家科技重大專項，大型先進壓水堆及高溫氣冷堆，高溫氣冷堆核島廠房極限承載力(地震、熱氣導管雙端斷裂)評價研究(2014ZX06902011)
作者簡介：孫運輪，研究員級高工，一級注冊結(jié)構(gòu)工程師，Email：sunyunlun@126.com。
