| 翼缘削弱的型钢混凝土框架试验与有限元分析 |
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| 引用本文： | 张雪松. 翼缘削弱的型钢混凝土框架试验与有限元分析[J]. 石家庄铁道学院学报, 2010, 23(1): 11-15,50 |
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| 作者姓名： | 张雪松 |
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| 作者单位： | 中国电力科学研究院,北京,100055;天津大学,建筑工程学院,天津,300072 |
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| 基金项目： | 国家杰出青年科学基金 |
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| 摘 要： | 通过对一榀两跨三层型钢混凝土框架模型的低周反复荷载试验,研究了翼缘狗骨式削弱的型钢混凝土框架的抗震性能。框架按＂强柱弱梁＂的原则设计,且对节点核心区附近梁端工字形型钢的上、下翼缘采取狗骨式削弱,并适当增加了梁端根部到型钢翼缘最大削弱部位纵向钢筋的配筋量。试验结果表明：框架的变形能力、承载能力、延性、耗能能力等受力性能均满足延性框架的抗震要求;这种构造措施能将塑性铰从梁端根部转移到翼缘削弱部位从而有利于型钢混凝土框架形成梁铰耗能机构,增强其耗能能力。采用ANSYS参数化程序设计语言（AP-DL）编制了命令流,对模型框架在低周反复荷载作用下的抗震性能进行了非线性有限元分析。计算结果与模型试验结果吻合较好,验证了基于分离模量理论计算的翼缘削弱的型钢混凝土框架结构全过程分析方法的可行性。
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| 关 键 词： | 型钢混凝土 框架 狗骨式削弱 抗震性能 塑性铰 有限元分析 |
Experimental Study and Finite Element Analysis of SRC Frame with Dog-bone Type Reduced Beam Sections |
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| Zhang Xuesong. Experimental Study and Finite Element Analysis of SRC Frame with Dog-bone Type Reduced Beam Sections[J]. Journal of Shijiazhuang Railway Institute, 2010, 23(1): 11-15,50 |
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| Authors: | Zhang Xuesong |
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| Affiliation: | Zhang Xuesong1,2 (1.China Electric Power Research Institute,Beijing 100055,China,2.School of Civil Engineering,Tianjin University,Tianjin 300072,China) |
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| Abstract: | The seismic SRC frame with dog-bone type reduced beam sections has been investigated based on the experiment and analysis of a 2 bays,3-stories model of SRC frame under cyclic loading.The frame designed as strong column-weak beam is treated with dog-bone style weakening on the upper and below flanges of the H-type steel at the beam end near the joint core,and the ratio of reinforcement which distribute from the root of beam end to the maximum weakened flanges of the H-type steel is increased.The test result... |
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| Keywords: | steel reinforced concrete frame dog-bone style weakening seismic behavior plastic hinge finite element analysis |
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