预应力与非预应力高性能混凝土梁抗震性能试验研究与有限元分析
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摘要
基于预应力与非预应力高性能混凝土梁的低周反复荷载试验,对其受力过程、破坏形态、滞回曲线、骨架曲线、恢复力模型、变形恢复能力、延性、刚度退化、耗能能力等抗震性能进行了较为深入的研究与分析。研究表明:非预应力高性能混凝土梁具有良好的抗震性能,中等预应力度的高性能混凝土梁也具有较好的抗震性能。编制了预应力与非预应力高性能混凝土梁基于本构关系的滞回全过程非线性有限元分析程序,程序计算值与试验结果吻合良好。
Based on experiments of prestressed and non prestressed concrete beams under low reversed cyclic loading, the failure pattern, hysteresis curves, skeleton curves, restoring force model, displacement restoring capacity, ductility, rigidity degeneration and energy dissipation, etc. were studied systematically. Studies showed that non prestressed high performance concrete (HPC) beams had good seismic performance, and prestressed HPC beams also had better seismic performance. A FEM program on the basis of material constitutional law, capable of nonlinear hysteresis full range analysis of prestressed and non prestressed HPC beams , have been developed in this paper, calculation results being in good agreement with those of the tests.
Based on experiments of prestressed and non prestressed concrete beams under low reversed cyclic loading, the failure pattern, hysteresis curves, skeleton curves, restoring force model, displacement restoring capacity, ductility, rigidity degeneration and energy dissipation, etc. were studied systematically. Studies showed that non prestressed high performance concrete (HPC) beams had good seismic performance, and prestressed HPC beams also had better seismic performance. A FEM program on the basis of material constitutional law, capable of nonlinear hysteresis full range analysis of prestressed and non prestressed HPC beams , have been developed in this paper, calculation results being in good agreement with those of the tests.
引文
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2犦陈肇元,朱金铨,吴佩刚.高强混凝土及其应用犤M犦.北京:清华大学出版社,1992.
3犦AHMADShuaibH,BARKERRoy.Flexuralbehaviorsofreinforcedhigh-strengthlightweightconcretebeams犤J犦.ACIStructuralJournal,1991,88(1):69-77.
4犦RAGHUPendyala,PRIYANMendis,INDUBHUSHANPatnaikuni.Full-rangebehaviorofhigh-strengthconcrteflexuralmembers:Comparisonofductilityparametersofhighandnormal-strengthconcretemembers犤J犦.ACIStructuralJournal,1996,93(1):30-35.
5犦高强与高性能混凝土委员会.高强混凝土工程应用犤M犦.北京:清华大学出版社,1998.
6犦FANGIkuang,WANGChuenshyuan,HONGKehluen.Cyclicbehaviorofhigh-strengthconcreteshortbeamswithlowamountofflexuralreinforcement犤J犦.ACIStructuralJournal,1994,91(1):10-18.
7犦薛伟辰,程斌,李杰.低周反复荷载下预应力高性能混凝土梁的抗震性能犤J犦.地震工程与工程振动,2003,23(1):78-83.
8犦薛伟辰.现代预应力结构设计犤M犦.北京:中国建筑工业出版社,2003.
2犦陈肇元,朱金铨,吴佩刚.高强混凝土及其应用犤M犦.北京:清华大学出版社,1992.
3犦AHMADShuaibH,BARKERRoy.Flexuralbehaviorsofreinforcedhigh-strengthlightweightconcretebeams犤J犦.ACIStructuralJournal,1991,88(1):69-77.
4犦RAGHUPendyala,PRIYANMendis,INDUBHUSHANPatnaikuni.Full-rangebehaviorofhigh-strengthconcrteflexuralmembers:Comparisonofductilityparametersofhighandnormal-strengthconcretemembers犤J犦.ACIStructuralJournal,1996,93(1):30-35.
5犦高强与高性能混凝土委员会.高强混凝土工程应用犤M犦.北京:清华大学出版社,1998.
6犦FANGIkuang,WANGChuenshyuan,HONGKehluen.Cyclicbehaviorofhigh-strengthconcreteshortbeamswithlowamountofflexuralreinforcement犤J犦.ACIStructuralJournal,1994,91(1):10-18.
7犦薛伟辰,程斌,李杰.低周反复荷载下预应力高性能混凝土梁的抗震性能犤J犦.地震工程与工程振动,2003,23(1):78-83.
8犦薛伟辰.现代预应力结构设计犤M犦.北京:中国建筑工业出版社,2003.
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