摘要
预应力混凝土连续梁桥作为一种经济、高效且耐久性较好的桥梁结构形式,其在交通运输中起着重要的作用。然而,由于受到复杂的荷载和环境条件影响,桥梁的性能存在很大的不确定性。因此,对预应力混凝土连续梁桥进行参数敏感性分析,对于保证桥梁的稳定性、安全性和耐久性具有重要意义。以南昌绕城高速某连续梁桥工程为依托,基于正交试验和响应面模型,采用Midas Civil进行模拟,分析了混凝土容重、混凝土弹性模量、预应力、环境相对湿度对梁体线形和应力的影响。
As an economical,efficient and durable bridge structure,prestressed concrete continuous beam bridges play an important role in transportation.However,due to the influence of complex loads and environmental conditions,there is significant uncertainty in the performance of bridges.Therefore,conducting parameter sensitivity analysis on prestressed concrete continuous beam bridges is of great significance for ensuring the stability,safety and durability of the bridge.Based on a continuous beam bridge project on the Nanchang Ring Expressway,using orthogonal experiments and response surface models,Midas Civil was used for simulation to analyze the effects of concrete bulk density,concrete elastic modulus,prestress and environmental relative humidity on the beam shape and stress.
作者
郑和智
李元松
叶绍其
廖宗熙
ZHENG He-zhi;LI Yuan-song;YE Shao-qi;LIAO Zong-xi(College of Civil Engineering and Architecture,Wuhan Institute of Technology,Wuhan 430073,China)
出处
《价值工程》
2025年第16期19-21,共3页
Value Engineering
关键词
预应力
参数敏感性
正交
响应面
prestress
parameter sensitivity
orthogonal
response surface
