The Form-finding Analysis Of The Large-span Cable-membranc Structures

In this thesis, the form-finding analysis of tensile cable-membrane structures is studied primarily. The emphases are put upon as follows:(1) Under the ground of plentiful documentation, the history, the current situation and the development of the tensile cable-membrane structure are examined, and the current situation of domestic engineers when designing and calculating it is considered in detail.(2) The theory of the form-finding analysis of the cable-membrane structure with the force density method is deduced explicitly and corresponding formulae are obtained.(3) Based on the formulae obtained above, a series of theoretically equivalent form transformation is done, and the results which are more suit for programming are acquired. According to that, the calculation program of the form-finding analysis of cable-membrane structures using the force density method is composed on the platform of Digital Visual FORTRAN 5.0.(4) The detailed example analyses are done. on several typical tensile cable-membrane structures, and the corresponding result data are shown as figures by using the data-processing software-Gedein.exe. The consequence of the example analyses proves the correctness and the usefulness of the program given by this paper.