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薄壳渡槽是水利工程中广泛应用的输水建筑物.以前,总是用梁法来计算薄壳渡槽槽身,用梁法计算长壳是可以的,但计算中长壳误差则较大.在许多情况下,薄壳渡槽属于中长壳范围. 近年来发展起来的有限条法是计算薄壳渡槽的理想的方法.它用分离变量法使得工程结构的总自由度大大减少,大大地减少了计算工作量和计算机内存需要量,节省机时,并能用较小的机器解较大的问题. 本文根据有限条法的基本理论,成功地用有限条法结合柔度法分析研究了有横向拉杆的薄壳渡槽槽身结构,推导了计算公式,编制了用有限条法计算薄壳渡槽槽身的电算程序.
Shell aqueduct is widely used in water conservancy projects in the water diversion structures.In the past, the beam method is always used to calculate the thin shell aqueduct body, beam method to calculate the long shell is possible, but the calculation of the long shell error is greater in many Shell aqueduct belongs to the middle and long shell area.The finite strip method developed in recent years is an ideal method to calculate the shell aqueduct.It uses the variable separation method to greatly reduce the total degree of freedom of the engineering structure and greatly reduces the calculation Workload and computer memory requirements, save machine time, and can solve the larger problem with a smaller machine.Based on the basic theory of the finite strip method, this paper successfully studied with the finite strip method combined with the flexibility method has a horizontal rod Thin shell aqueduct body structure, deduced the formula, prepared by the finite strip method to calculate the thin shell aqueduct computer program.