钢筋混凝土框架梁构件基于性能的实用抗震设计方法
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（中国中元国际工程公司, 北京 100089）[摘要] 为了在实际设计工作中，对钢筋混凝土框架梁构件进行基于性能的抗震设计方法，采用梁截面变形(曲率)作为设计参数进行抗震设计。对变换不同设计参数的梁构件截面进行了非线性变形分析，确定了梁构件截面的变形能力。根据分析结果对梁构件截面定义了三个性能点：屈服点、名义峰值点和变形极限点，并分析了性能点的影响因素，给出了实用计算方法。直接以梁构件截面的性能点进行基于性能的抗震设计，可使设计简单，物理意义明确。[关键词] 基于性能抗震设计; 钢筋混凝土框架梁; 实用设计方法中图分类号：TU375.3 文章标识码：A 文章编号：1002-848X(2013)S2-0414-04作者简介：李亚，硕士，工程师，Email：liya@163.com。Performance-based seismic design practical method for RC frame beamsLi Ya(China IPPR International Engineering Corporation, Beijing 100089)Abstract: In order to give practical performance-based seismic design ( PBSD ) method, we used beam section deformation (curvature) as design parameters for seismic design. Based on the beam section nonlinear analysis, the beam section deformability was determined. The performance points were defined with yield point, nominal peak point and ultimate curvature point, based on the beam analysis results. We analyzed the influence factors of beam performance points, and give the practical calculation method of the performance points. It is simple and has clear physical significance that with beam section performance points parameters to do PBSD.Keywords: performance-based seismic design; RC frame beam; practical design method
