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(二)按横截面周边折裂计算 具有对称截面,且带有不大边梁的单波长壳及单波中长壳在均布荷载作用下,壳体可能是由于仅仅沿着壳体中部纵向截面上形成纵向塑性铰(裂缝在壳板的上表面图6)。影响亮体形成纵向塑性铰的除了边缘构件(边梁)的形式和大小外,还有壳体的矢高、配筋以及施加在壳体上的荷载沿横截面周边的分布形式等等。例如具有过大边梁的壳体就有可能在壳体和边梁处也会形成纵向塑性铰。 为了简化计算,对由塑性铰划分开的每
(B) Calculation of a single-wavelength shell with a symmetrical cross-section and a single-wavelength medium-length shell with a symmetric cross-section around the cross-section. Under uniform load, the shell may be due to only along the middle of the shell. Longitudinal plastic hinges are formed on the cross section (the crack is on the upper surface of the shell plate Figure 6). In addition to the form and size of the edge members (edge beams), the shape of the longitudinal plastic hinges that affect bright bodies also includes the height of the shell, the reinforcement, and the distribution of loads applied to the shell along the periphery of the cross-section. For example, a housing with an excessively large side beam may also form a longitudinal plastic hinge at the housing and the side beam. In order to simplify the calculations, each is divided by a plastic hinge.