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With high strength steel to improve the rectangular piers seismic performance test

Author: XiaoXueLian
Tutor: HanYan
School: North China University of
Course: Structural Engineering
Keywords: Rectangular piers Quasi-static test High Strength Reinforced Ductility Hysteretic energy Seismic performance
CLC: U443.22
Type: Master's thesis
Year: 2010
Downloads: 99
Quote: 0
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Abstract


So far , a large number of earthquake damage and experimental research into the elastoplastic state in a strong earthquake , the structure will generally appear elastic and plastic deformation , nonlinear deformation of the bridge structure is most concentrated in the pier columns . The seismic performance of ductile deformation of the pier columns energy dissipation capacity is directly related to the pier columns study of the seismic performance has important theoretical and practical significance . The subjects with high strength steel to improve the rectangular piers seismic performance test projects as the Beijing Education Commission Fund configure high strength reinforced concrete piers Seismic performance expectations for China 's specification revision and application of high strength reinforced to provide a theoretical foundation and experimental basis . This article by six rectangular concrete piers pier columns specimen vertical load and low levels of cyclic loading under the joint action of the quasi - static tests , analysis of the impact with the ductility of high strength reinforced concrete piers model and seismic performance factors , arranged in the form of reinforced strength , high-strength reinforcement and reinforced , the axial compression ratio , stirrups spacing and stirrup rate of impact , and study its hysteretic curves , skeleton curves , reinforced strain curve characteristics obtained specimen displacement ductility factor and energy dissipation coefficient and displacement ductility factor formula . Analyzed by high strength reinforced concrete piers with specimen test results , the following conclusions : the ductility of high strength concrete piers with axial compression ratio , type and arrangement of longitudinal reinforcement and stirrup spacing factors to do with high-strength reinforced the stirrups can improve the ductility of the pier ; longitudinal reinforcement parts with high strength steel can improve the ductility of the pier , but high-strength reinforced configuration should not be too much . Therefore , the purpose of this topic , \\

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CLC: > Transportation > Road transport > Bridges and Culverts > Bridges constructed > Pier structure ( substructure ) > Bridge pier
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