【摘要】 本文对平衡矩阵理论进行了系统研究,建立了两节点索、杆、梁单元的平衡矩阵的一般形式,并对各种加劲梁、张弦梁结构等索杆梁混合单元体系的初始预应力分布的确定和截面设计进行了分析。依据本文理论采用VC++6.0编制了相应程序模块,算例分析验证了本文方法的正确性。更多还原

【Abstract】 Based on the equilibrium matrix theory, the general forms of equilibrium matrix of two-node cable element, strut element and beam element are derived respectively and the distribution of prestress and cross section of cable-strut-beam structures such as beam string structures are analyzed. According to the theory the computer program is developed by using VC + + 6. 0. Numerical results show the proposed method is correct.更多还原