STUDY OF RESTORING FORCE MODEL SKELETON CURVE OF PRESS -BENDING COMPONENT
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摘要: 恢复力模型选择是结构抗震中一个很重要的问题。将截面的内力与变形看作广义的应力与应变,运用塑性位势理论、流动法则、强化模型和混凝土屈服准则,从理论上推导出压弯构件力和变形之间的关系,即恢复力模型的骨架曲线。结合建筑规范得到方程需要的参数。经验证本文模型和试验能够较好地吻合。Abstract: Restoring force model plays a very important role in the research of earthquake -resistant structure. Taking thedeformation and internal force of a section as generalized stress -strain, utilizing plastic potential theory and flow rule as wellas hardening model and concrete yield criterion, it is induced the relation between force and deformation of frame columns(the skeleton curve of restoring force model). The choice of equation parameters and their identification are discussedaccording to the building code, and it is proved that the model agrees with the test resultswell.
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Key words:
- restoring force /
- skeleton curve /
- plastic potential theory
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.过镇海. 钢筋混凝土原理. 北京: 清华大学出版社, 2001: 300-310 .潘士,许哲明. 框架结构的非线性地震反应分析(自然科学版). 同济大学学报, 1980(2):43-63 .沈聚敏,翁义军, 冯世平. 周期反复荷载下钢筋混凝土压弯构件的性能. 土木工程学报, 1982, 15(2): 53-64 .郑颖人, 沈珠江, 龚晓南. 岩土塑性力学原理. 北京: 中国建筑工业出版社, 2003:72-112 .汤广来.混凝土弹塑性硬化模型. 合肥工业大学学报(自然科学版), 1998, 21(5): 110-114 .王 哲,林 皋. 混凝土的一种非相关流塑性本构模型. 水利学报, 2000(4): 8-13 .杜宏彪.空间钢筋混凝土框架结构的弹塑性地震反应: [ 学位论文]. 北京: 清华大学, 1990: 17-32 .GB 50010-2002 混凝土结构设计规范 .Chen W F, Saleeb A F. Constitutive Equations for EngineeringMaterials. New York:Wiley,1994: 126-155 .Clough R W, Penzien J. Dynamics of Structures(2nd Edition). Mcgraw -Hill Inc., 1993: 133-140,325-336 .Miramonte D, Merabet O, Reynouard J M. Beam Global Model for theSeismic Analysis of RC Frames. Earthquake Engineering and StructuralDynamics, 1996, 25(7):671-688
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