梯形压型钢板在面内荷载作用下的正交各向异性等效计算

Orthotropic equivalent calculation for trapezoid profiled steel sheets under in-plane load

针对现代建筑结构分析中常见的因梯形压型钢板几何形状复杂而导致建模工作量和计算量大的工程实际问题,提出梯形压型钢板的正交各向异性等效模型,推导了相关弹性常数计算公式,并通过典型结构有限元计算验证了模型和公式的精度。结果表明,该等效模型可在保证精度的前提下大幅提高有限元计算效率。

According to engineering practical problems such as the large workload of modeling and calculation caused by complex shape of trapezoid profiled steel sheets in moderu huilding structures analysis, an orthotropic equivalent model for trapezoid profiled steel sheets was proposed and the calculation formula of relevant elastic constants was deduced. The validity of the proposed model and formula was verified by finite element analysis on typical structures..The results show that the equivalent model can greatly improve the calculation efficiency on the premise of high accuracy.