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弹性地基混凝土板承载力的计算是关系到工业厂房地坪、公路路面和机坊跑道等工程建设中混凝土耗用量的问题。以工业厂房地坪为例,按照过去沿用的设计计算方法,混凝土用量约占全部厂房的30％。本文从我国各地所进行的大量实验所显示的地面板和地基的弯沉变形的规律中,建立基本假设,提出比较合理的和符合实际的力学计算模型,推导和建立了一组形式简单、概念明确的计算公式,能解决符合无限大地面板工作状态的大尺度混凝土板承受多种荷载类型下的极限承载力的计算问题。各地实验表明本文提出的单圆荷载公式比美国梅尔霍夫公式和苏联目前所采用的公式(1972年地面规范公式),以及我国1965年地面规范公式都更接近实测结果,计算极限承载力是实测结果的70—90％,用于计算地面板厚度可节约混凝土16—27％。
The calculation of bearing capacity of elastic foundation slabs is related to the consumption of concrete in the construction of industrial plant floors, highway pavements, and runway runways. Taking the floor of an industrial plant as an example, according to the design calculation methods used in the past, concrete consumption accounts for about 30% of the entire plant. In this paper, basic assumptions have been established in the law of deflection and deflection of foundation slabs and foundations demonstrated by a large number of experiments conducted in various parts of China. A more reasonable and realistic mechanical calculation model has been proposed, and a set of simple forms have been deduced and established. The explicit calculation formula can solve the problem of calculating the ultimate bearing capacity of large-scale concrete slabs subjected to various load types in accordance with the working status of an infinite floor panel. Local experiments show that the single-circle load formula presented in this paper is closer to the actual measurement result than the American Melhoff formula and the Soviet Union’s currently used formula (ground specification formula of 1972) and the ground regulation formula of China in 1965, and the calculation of the ultimate bearing capacity is 70-90% of the measured results, used to calculate the floor thickness can save concrete 16-27%.