论文部分内容阅读
鋼筋混凝土薄蝸壳的計算工作,目的在于求得結构物內部的应力,以作为下一步选择断面尺寸和配置鋼筋的依据。鋼筋混凝土薄蝸壳是一种形状复杂的空間結构,呈三向应力状态。而目前通用的“形框架分析法”——即沿蝸壳半径方向切取几个断面按框架进行分析的方法,由于受种种假定条件的限制,所得結果往往不能滿足設計人員的要求,并导致不經济的設計。現参考魯金、格里姆捷的理論,提出了一个实用的方法。我們用本法計算过一个鋼筋混礙土薄蝸壳,計算工作量約四、五小时,所获成果的精度較高。以下先介紹一下方法的要点,再逐节詳細介紹。
Reinforced concrete thin volute calculation work, the purpose is to find the structure of the internal stress, as the next step to choose the size of the cross-section and the basis for the allocation of steel. Reinforced concrete thin volute is a complex spatial structure, was three-state stress state. At present, the common “frame analysis method” - that is, the method of cutting several sections along the radial direction of the volute and frame-by-frame analysis, the results obtained often can not meet the requirements of designers due to various assumptions, Economic design. Now refer to Lu Jin, Grim Jie’s theory, put forward a practical method. Using this method, we calculated a thin spiral case of reinforced concrete and calculated the workload for about four or five hours, resulting in a higher accuracy of the results. The following describes the main points of the method, and then section by section details.