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一般单层厂房结构可分为两类：一类是厂房屋盖为大型屋面板体系；另一类其厂房 屋盖为檩条及瓦构成的体系。前一类厂房的空间作用问题在前一文［１］中巳讨论过，本 文讨论第二类厂房的空间作用问题。本文给出了十个厂房的实测结果并提出了一个理 论分析方法。在理论分析中，将厂房结构看成是一个具有剪切蒙皮的空间刚架，即将檩 条、屋架、吊车及柱看成一个空间刚架，将屋面看成是只有剪切刚度的薄片。取柱子上结 点的水平转动角及水平位移为未知数，根据相应的平衡条件建立基本方程。理论结果和 实测结果是比较符合的。用上述计算方法计算了约３００个厂房的空间作用分配系数，并 简化为一个表。利用这个表，可使厂房排架在吊车载荷下考虑空间作用的计算大为简化， 便于在实际设计中采用。
The general single-storey factory buildings can be divided into two categories: one is that the factory housing covers a large roofing system; and the other is a system consisting of purlins and tiles. The spatial role of the former plant was discussed in the previous article [1]. This paper discusses the spatial role of the second plant. This paper presents the measured results of ten buildings and proposes a theoretical analysis method. In the theoretical analysis, the building structure is viewed as a space rigid frame with a shear skin, ie, the purlins, trusses, cranes, and columns are considered as a spatial rigid frame, and the roof is considered as a sheet with shear stiffness only. The horizontal rotation angle and horizontal displacement of the knot on the column are unknown, and the basic equations are established according to the corresponding equilibrium conditions. The theoretical results are in good agreement with the measured results. Using the above calculation method, the space effect distribution coefficients for about 300 plants were calculated and reduced to a single table. Using this table, the calculation of the spatial effect of the powerhouse rack under crane load can be greatly simplified, which is easy to use in actual design.