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RESEARCH ON RESTORING FORCE MODEL OF STEELCONCRETE COMPOSITE BEAMS
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摘要: 根据5根不同剪力连接度钢-混凝土简支组合梁在低周竖向反复荷载作用下的恢复力特性试验结果,对不同剪力连接度组合梁的屈服荷载、屈服挠度、极限荷载、极限挠度及平台荷载进行分析,建立简支钢-混凝土组合梁正向加载和反向加载的骨架曲线模型,并提出统一的实用计算公式,根据试验结果,建立简支组合梁的荷载-挠度恢复力模型的滞回规则。Abstract: According to the test results of seismic resistant performance of five stee-l concrete composite beams under cyclic point concentrated loads, it was analyzed that the yield load and deflection, ultimate load and deflection, as well as, the flat load, the framework curve model of stee-l concrete composite beams under positive and negative load were proposed.The easily applied uniform expressions were also shown.According to the experimental results, the hysteretic rule of loaddeflection and restoring force model of stee-l concrete beams were established.
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沈聚敏, 周锡元, 高小旺, 等.抗震工程学.北京: 中国建筑工业出版社, 2000 周建中, 赵鸿铁.恢复力曲线模型及其对控震效果的影响研究.西安科技学院学报, 2003, 23( 3): 267-269 蒋丽忠, 余志武.集中力作用下钢-混凝土组合梁的滑移与变形的理论计算.土木工程学报, 2003, 36( 8): 1-6 严正庭, 严 立.钢与混凝土组合结构计算构造手册.北京: 中国建筑工业出版社, 1996 刘仲武.钢-混凝土组合简支梁的抗震性能研究: [ 硕士学位论文].长沙: 中南大学, 2004 聂建国, 余洲亮, 叶清华.钢-混凝土叠合板组合梁抗震性能的试验研究.清华大学学报( 自然科学版), 1998, 38(10): 35-37 杜宏彪, 沈聚敏.用于空间钢筋混凝土结构弹塑性分析的杆件多维恢复力模型.工程力学, 1997( 增刊): 340-344 Taplin, Geoff Grundy, Paul.Stee-l Concret e composit e Beams UnderRepeated LoadPPProceedings of the Conference: composite Const ruction inSteel and Concrete IV.2000: 37-50 -
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