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本文根据国内外单层厂房的实测和试验资料并经过深入的分析研究后,发现单层厂房变形时各排架只相互错动而无出平面的转动。因此从整体看来,厂房纵向屋面系统的变形主要是剪切变形。当厂房屋面系(包括纵向支撑等)变形时,各排架起着弹性约束的作用。因为排架很多,可以用均匀分布的弹性约束代替其作用。这样,便可以采用以均匀分布的弹性约束(所有排架)联系起来的剪切梁系(各屋面系)来作为厂房空间作用的计算简图。从而改善了单层厂房排架的静力计算理论,并建立了单层厂房的动力计算理论。其结果不仅很好地符合实际情况,而且十分简便实用。
Based on the actual measurement and test data of single-storey factory buildings at home and abroad, after thorough analysis and study, this paper finds that when the single-storey building is deformed, each row of racks only moves with each other without turning out of the plane. Therefore, as a whole, the deformation of the longitudinal roof system of the factory is mainly shear deformation. When the factory housing surface (including longitudinal support, etc.) is deformed, each row of shelves plays a role of elastic restraint. Because there are many racks, it is possible to replace them with evenly distributed elastic constraints. In this way, the shear beam system (each roofing system) associated with a uniform distribution of elastic constraints (all bays) can be used as a calculation diagram for the function of the factory space. This has improved the static calculation theory of single-storey factory buildings and established the dynamic calculation theory of single-storey factory buildings. The result is not only very well in line with the actual situation, but also very simple and practical.