填充墙框架结构承载力简化计算方法探讨

以往的试验研究表明，砌体填充墙的存在较大地提高了框架结构的水平承载力和侧向刚度，砌体填充墙框架水平承载力计算时应考虑砌体填充墙的影响。视砌体填充墙框架的极限水平承载力由砌体填充墙和框架共同承担，并适当考虑砌体填充墙和框架问的相互作用，侧向荷载作用下砌体填充墙等效为一根铰接于框架平面的斜压杆。据此建立砌体填充墙框架结构水平承载力的简化计算模型，提出了填充墙框架水平承载力的简化计算公式，计算值与试验值比较吻合。

Simplified Calculation Method of Bearing Capacity of Infill Wall Frame Structure

Previous researches indicated that the masonry infill wall enhanced the lateral stiffness and the horizontal bearing capacity of reinforced concrete frames, and the influence of masonry in- fill wall should be taken into account when calculating the horizontal bearing capacity. We sup- posed that the horizontal bearing capacity of masonry infilled reinforced concrete frame was shared by the wall and frame, the interaction between the masonry infill wall and frame was con- sidered, and the masonry infill wall was equivalent to a hinged frame plane inclined strut under lateral loads. We established the simplified calculation model of horizontal bearing capacity ac- cordingly, and proposed the horizontal bearing capacity simplified formula. The calculated value is consistent with the experimental value.