- 摘 要
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（東南大學(xué)RC/PC結(jié)構(gòu)教育部重點實驗室 南京 210096）
［提要］ 分析了某鋼筋混凝土鋸齒形排架結(jié)構(gòu)設(shè)計中柱子截面取值偏小導(dǎo)致結(jié)構(gòu)不滿足承載力及變形要求的原因。將鋸齒形排架與一般排架受力性能進行了對比研究，得出在鋸齒形排架結(jié)構(gòu)設(shè)計中不能將七字梁部分簡化成鏈桿進行計算。針對工程特點制定了僅加固邊柱的經(jīng)濟有效的加固措施。
［關(guān)鍵詞］ 鋸齒形排架 七字梁 加固
Design Accident Analysis and Strengthening of a Zigzag Bent Frame Structure/Zhang Yuming，Meng Shaoping（The Key Lab on RC/PC Structures of Ministry of Education, Southeast University, Nanjing 210096,China）
Abstract:Column sections of a reinforced concrete zigzag bent frame structure are designe
d inadequate so that the bearing capacity and deformation can not be satisfied. The reason is analysed. A simple ordinary bent frame is compared with a zigzag bent frame to find the difference between them. The result indicates that 7shaped beams can not be simplified to rigid bars during the design of a reinforced concrete zigzag bent frame structure. The effective measure that only exterior columns are strengthened is set down according to this project characteristic.
Keywords:zigzag bent frame;7shaped beam;strengthening
