集中式预应力砖墙抗侧承载力计算公式的建议

以集中式预应力单层砖墙和多层房屋抗震性能试验研究为基础 ,借鉴 4种典型的带构造柱组合砖墙抗侧承载力计算公式 ,进行了旨在与试验实测结果相符合的数值分析。分别对各公式给予了必要的调整 ,力求反映预压应力对墙片抗侧能力的影响。在 4种计算方法对比分析的基础上 ,提出了集中式预应力砖墙抗侧承载力计算的建议公式 ,供工程设计参考。

Suggestion of Calculation Methods for the Lateral Bearing Capacity of Prestressed Brick Wall

Based on the tests of prestressed and nonprestressed brick masonry walls and house models with peripheral beams and construction columns under cyclic lateral loading, four kinds of calculation methods for the ultimate lateral bearing capacity of nonprestressed brick walls with peripheral beams and construction columns are discussed. In order to reflect the influence of the prestressing force and get the formulas for prestressed brick walls, necessary modifications are made. Finally,simplified semi-empirical formulas of the ultimate bearing capacity for design are put forward, and the calculating results are well identical with the tests.