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肢长厚比大于 4的 9根不等肢L形截面和 3根不对称T形截面短肢墙的偏心受压破坏试验结果显示 ,截面变形基本上符合平截面假设 ,中和轴不垂直于弯矩作用平面 ,中和轴位置随荷载的增大而变化。在正截面承载力计算图式中 ,采用混凝土受压区等效矩形应力分布图 ,极限荷载计算值与试验结果符合较好
The result of eccentric compression failure of 9 unequal-limb L-sections and 3 asymmetric T-section short-limbs with limbs greater than 4 shows that the section deformation basically conforms to the assumption of flat section and the neutral axis is not perpendicular to The role of bending moment plane, the neutral axis position with the load changes. In the calculation formula of bearing capacity of normal section, the equivalent rectangular stress distribution diagram of concrete compression zone is adopted, the calculated value of ultimate load is in good agreement with the test results