摘要
建立悬臂挂篮法施工桥梁的计算模型时,在待浇梁段未达到一定的强度和刚度前,计算模型中待浇梁段单元尚未生成,为了模拟主梁的这一悬臂现浇过程,需在挂篮单元上施加待浇段的等效自重。该文对建立计算模型时是否施加这一自重进行了对比,并通过实例分析找出2种模拟方式对计算结果的影响。
For bridges with cast-in-place cantilever construction,the beam elements to be casted isn＇t generated in calculation model before the beams to be casted reaches certain strength and stiffness. Sometimes, a equivalent load will be applied to the hanging basket to simulate the casting process of beams to be cast. In this paper, the calculation models appling deadweight or not are compared, and the effect of simulation methods on calculation results are analysed through an actual example.
出处
《现代交通技术》
2011年第1期39-41,共3页
Modern Transportation Technology
关键词
斜拉桥
主梁
挂篮悬浇
模拟方式
cable-stayed bridge
main beam
suspending cast
simulation patterns
