【摘要】 《砌体结构设计规范》(GB5 0 0 0 3— 2 0 0 1 )中梁端支承处砌体局部受压承载力的计算公式保留了原规范GBJ3— 88的形式。考虑到砌体材料分项系数的提高 ,梁端有效支承长度采用了简化计算公式等因素的影响 ,在实际工程设计中可能出现设置混凝土刚性垫块后局部受压承载力比不设置垫块时更低 ,或者设置普通混凝土刚性垫块根本无法满足砌体局部受压承载力的要求。通过公式推导和具体算例对上述问题进行了分析 ,并提出了设计建议。更多还原

【Abstract】 Code for design of masonry structures(GB50003—2001) retains the formula of local bearing capacity of masonry over bearing area in Code GBJ3—88. Considering the amplification of masonry strength factor and the simplified calculation of effective bearing length, the bearing capacity of masonry with rigid beam pan may be less than that of masonry without the pan, or cannot be improved only by enlarging the bearing area in some cases. For above problems, it puts forward some suggestions for design of masonry structures by the formula derivation and the practical examples.更多还原