[结构][有限元][PFSAP] 平行弦桁架简单算例及概念 ( Basic concepts and examples of parallel chord truss)

实干、实践、积累、思考、创新。


PFSAP( [有限元][编程][日记] PFSAP:平面框架弹性静力分析程序做几个简单的平行弦桁架算例。

model

displacement

axial force

reaction force

model 2 vs model 3

model 1 vs model 4

刚度从大到小: 2 3 4 1,传力路径越小刚度越大。

方案2与方案3、方案1与方案4的斜腹杆拉压受力成反对称。


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