平面框架簡化為魚骨型振動模型的研究
裴星洙1，周曉松2
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(1 江蘇科技大學(xué)土木系，鎮(zhèn)江212003;2 武漢市建筑設(shè)計(jì)院，430014)［提要］將框架結(jié)構(gòu)簡化為魚骨型模型，能夠考慮框架橫梁剛度對結(jié)構(gòu)性能的影響，是一種合理的簡化方法?；陟o態(tài)縮合方法，推導(dǎo)了魚骨形模型結(jié)構(gòu)剛度矩陣的解析式，通過算例提出了實(shí)際單跨平面框架結(jié)構(gòu)和魚骨型振動模型之間的線剛度轉(zhuǎn)化關(guān)系。例題分析表明，提出的模型能夠模擬結(jié)構(gòu)的實(shí)際地震反應(yīng)，計(jì)算精度滿足工程要求。［關(guān)鍵詞］魚骨型振動模型；非線性靜力分析；平面框架；時(shí)程分析Study on Simplified Method of Planar Frame to Fishbone-shaped Vibration Model/Pei Xingzhu1,Zhou Xiaosong2(1 Department of Civil Engineering,Jiangsu University of Science and Technology,Zhenjiang 212003,China; 2 Wuhan Designing Institute,Wuhan 430014,China)Abstract:The fishbone-shaped model can be used to simplify the frame structure considering the influence of the beam rigidity on the structure system. Based on the static condensation method, the structural rigidity matrix is derived. The line rigidity transferring relation between the single span planar frame and the fishbone-shaped vibration model is presented. The analysis results show that the suggested model can simulate the structure earthquake response and the precision meets the engineering requirement.Keywords:fishbone-shaped vibration model; nonlinear static analysis; planar frame; dynamic analysis
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