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本文基于对以往大量实验数据的分析研究,对地面孤立封闭长方体表面荷载与输入荷载,自由场动压与超压之间内在联系作出一些简化物理假定,从而建立起一种比较接近实际的新的近似计算模型。运用此模型对几种常见的输入荷载进行了求解,推导出计算各墙面荷载的一组解析公式,根据这组公式计算得到的壁面荷载分别与实验结果。与美国早期和近期的经验公式计算值都进行了比较,它们符合得相当好,证明这种计算模型是可信的,本文推荐的处理方法也适用于其他形式地面建筑物表面荷载的近似估算。
Based on the analysis and analysis of a large amount of experimental data, this paper makes some simplified physical assumptions about the intrinsic link between surface load and input load, free field dynamic pressure and overpressure of isolated isolated rectangular parallelepiped, thus establishing a new approach that is closer to reality. Approximate calculation model. This model was used to solve several common input loads. A set of analytical formulae for calculating the wall loads was deduced, and the wall loads and experimental results were calculated based on this set of formulas. Comparing with the early and recent empirical formula calculation values in the United States, they are in good agreement and prove that this calculation model is credible. The treatment method recommended in this paper is also applicable to the approximate estimation of surface loads of other forms of ground buildings.