摘要
以深圳马峦山公园高架桥为工程背景,详细分析波形钢腹板-桁式弦杆连续梁桥的受力性能。首先,介绍了波形钢腹板-桁式弦杆连续梁桥的基本构造;之后,建立了该新型组合梁的实体及杆系模型,对比了两种模型计算结果的差异;最后,基于杆系模型分析了该组合梁桥的受力行为。分析结果表明:杆系模型及实体模型可以获得相近的弹性分析结果;该桥满足正常使用状态下变形及应力的要求;钢管中混凝土可以有效提高组合梁的刚度,降低组合梁的变形;杆系模型便于进行承载能力验算,满足承载力设计要求。
Referred to the Malianshan Park viaduct in Shenzhen,the mechanical performance of continuous girder bridge with corrugated steel webs and trusses is analyzed in detail.Firstly,the structure of continuous girder bridges with corrugated steel webs and trusses is introduced.Then,two finite element models of the novel composite beam were presented including the solid model and the beam model.The difference between the analysis results of the two models was compared.At last,the mechanical properties of the composite beam bridge was analyzed based on beam models.The analysis results show the elastic results based on beam models are similar to those based on solid models.The stress and deformation of the bridge meet the requirements in the serviceability state.The concrete in steel tubes can effectively improve the flexural stiffness of composite beams and reduce the deformation.The beam model is convenient for the bearing capacity calculation,and the bearing capacity meets the design requirements.
作者
吴连波
WU Lianbo(Maintenance Equipment Shenzhen Transportation Public Facilities Construction Center,Shenzhen 518000)
出处
《福建建筑》
2020年第7期90-95,共6页
Fujian Architecture & Construction
