【摘要】 根据箱形基础底板钢筋应力的实测资料,结合相应的沉降及地基反力实测结果,本文分析了上部结构作用对箱基整体弯矩的主要影响因素,提出了箱基应力包络线的概念,将上部结构刚度对箱基整体弯矩影响的计算转化为上部结构荷载重分配的计算,给出了物理概念明确且易为一般工程设计人员应用的建议计算公式。更多还原

【Abstract】 Based on a number of measurements of stresses in the reinforcements of box foundation base slabs, relative settlement of the building, and its subsoil reactions, the main influence factors of the superstructure rigidity on the integral moment of box foundation are analyzed. This paper presents a concept of box foundation stresses envelope curve, converts the calculation of the superstructure rigidity effect on box foundation into the calculation of redistribation of the loads above, and finally suggests a formula which is clear in physics conception and easily applicable to designers.更多还原