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砖石结构组合砌体大偏心受压构件在受压区高度 x 小于受压钢筋 A′_g 重心至截面较近边缘的距离 a′的2倍时的计算,在《砖石结构设计规范 GBJ3—73》中没有明确规定,有关书刊及资料亦未有介绍。工程实践中,一些单层厂房的排架柱、补强结构等,特别在有抗震要求的建筑物中采用配筋的组合砖柱时,由于弯矩大轴力小,结构设计中常常出现组合砌体大偏心受压构件 x<2a′的情况。此时,由于受压钢筋实际上达不到屈服强度,致使规范中公式已
The masonry structure masonry large eccentric compression member is calculated when the height x of the compression zone is less than twice the distance a′ between the center of gravity of the pressed steel bar A′_g and the near edge of the section, in the Masonry Design Specification GBJ3— There is no clear provision in 73, and the relevant books and materials have not been introduced. In engineering practice, some single-storey factory building columns, reinforcing structures, etc., especially when combined columns with reinforcement are used in buildings with seismic requirements, due to the large axial force of the bending moment, the combination often appears in the structural design. Masonry large eccentric compression member x<2a′. At this point, because the pressed steel bar does not actually reach the yield strength, the formula in the specification