預應力開洞磚墻抗震性能的試驗研究
駱萬康 王天賢 廖春盛 朱希誠
- 摘 要
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駱萬康 （重慶建筑大學 630045）王天賢 （西北建筑工程學院 西安 710061）
廖春盛 朱希誠 （重慶建筑大學 630045）
[提要] 通過對帶圈梁和構造柱的開洞預應力與非預應力磚墻在低周交變水平加載下的對比試驗，研究了開裂與破壞的全過程、破壞機理、滯回特性、強度、剛度、延性與耗能。結果表明：與無洞墻一樣，預應力開洞墻體既能提高其抗裂和承載的能力，又能改善其變形、延性及耗能性能，并隨預應力度的提高而更能充分發(fā)揮這種優(yōu)勢。預應力對開洞和無洞墻體的加強作用具有一致的規(guī)
律性，為砌體結構抗震開辟了新的途徑。
[關鍵詞] 預應力 開洞磚墻 低周交變加載 抗震性能
By comparing the tests of prestressed and non-prestressed holed brick walls with peripheral beams and constuctional columns under cyclic lateral loading, appearance and devolopment of cracks, failure mechanism, hysteretic behavior, strength, stiffness ductility and energy dissipation of brick walls are investigated. It is found that prestressing holed walls can increase its strength and improve the behavior of displacement, ductility and energy dissipation. The more prestressed, the more obviously. The results of studies give the fundation of experiment and theory for the aseismic design of prestressed holed brick walls.
Keywords: prestress holed brick walls; cyclic lateral loading; behavior of aseismic
