配筋砌块桥墩反复静力加载受力性能研究

Performance study on reinforced masonry piers under repeated quasi static loading

考虑到大多数桥墩在地震中遭到破坏,设计了2根构件,并将其用于研究配筋混凝土小型空心砌块桥墩在反复拟静力加载下的受力、变形、变形回复及延性等性能。试验结果表明:配筋混凝土小型空心砌块桥墩在反复拟静力加载下表现出较好的回复变形能力和延性,砌体桥墩构件最终变形幅度较大且未完全失去承载能力,这些性能与典型的钢筋混凝土结构具有类似的抗震性能。

Considering that all the piers are destroyed in the earthquake,two components used for studying the reinforced concrete small hollow block bridge piers＇properties such as stress,deformation,deformation recovery and ductility under repeated quasi stat-ic loading are designed.The test results show that the reinforced concrete small hollow block bridge piers display good deformation capacity and ductility under repeated quasi static loading.The masonry piers component deformation extent is large and eventually not completely lose their bearing capacity.These properties have the similar seismic properties with typical reinforced concrete structure.