【摘要】 运用张弦梁原理构造了一种新型的悬臂张弦立体桁架结构,以该结构为研究对象进行时程分析,并针对不同的悬索预应力值、撑杆数、撑杆高度等参数,进行详细的地震响应分析,得出了各参数在地震作用下对悬臂张弦立体桁架结构动力响应的影响.结果表明,该结构受力合理、构造简单,可以有效地减小悬臂结构端部竖向位移和根部弯矩,从而为此类结构的设计和应用奠定了一定的基础.更多还原

【Abstract】 Making use of the principle of Beam String Structure,we made a new cantilever spatial truss string structure(CSTSS).Taking it as a study object,we adopted time history analysis to analyze seismic responses.Through such parameters,as prestress of string,the number and the height of brace bars,we analyzed the influence of parameters on seismic responses,and obtained some important results.The results proved that this cantilever roof structure had a good structure form because of its reasonable load transfer and simple connections.更多还原