钢筋混凝土框架的P-△效应
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摘要
本文通过二榀单跨三层框架试验,研究了具有梁铰侧移机制框架的P-△效应。指出:在抗震设计中,如不考虑P-△效应,将会过大估计结构的变形能力和承载能力。因而是不安全的。并提出一个考虑P-△效应的简化计算方法。
According to the test results of two R. C. frame models with single span and three stories, this paper studies P-Delta effects of R. C. frame with the beam-hinge sidesway mechanism. It points out that it is possible to overestimate deformability and the carrying capacity of the structure in aseismic design without considering the P-Delta effects. Therefor it is unsafe. A simplified method considering the P-Delta effects has been proposed.
引文
1 Peter J Moss, Athol J Cart. the Effects of Large Displacements on the Earthquake Response of Tall Concrete Frame structures.新西兰地震工程,1980,13(4) :317-328
    2 余安东等.弱梁型框架层间变形能力计算方法.同济大学学报,1984,(3) :51-60
    3 王崇昌等.钢筋混凝土弹塑性抗震结构的机构控制理论(论文集).西安冶金建筑学院,1988
    4 薛武平.钢筋混凝土框架结构的P-△效应与抗震性能的研究.西安冶金建筑学院硕士研究生论文,1987

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