城市建设理论研究(电子版)
城市建設理論研究(電子版)
성시건설이론연구(전자판)
ChengShi Jianshe LiLun Yan Jiu
2014年
22期
1236-1237
,共2页
钢管混凝土拱桥%临界荷载系数%有限元模型%几何非线性%材料非线性
鋼管混凝土拱橋%臨界荷載繫數%有限元模型%幾何非線性%材料非線性
강관혼응토공교%림계하재계수%유한원모형%궤하비선성%재료비선성
concrete filed steel tubul ararch bridge%the critical load coefficient%finite element model%the geometric nonlinear%nonlinear material
稳定性是控制拱桥设计的一个关键问题,本文首先介绍了钢管混凝土拱桥线性和非线性稳定计算理论,其次以一座上承式钢管混凝土拱桥--燕崖大桥为依托,通过有限元计算程序,分别计算了线弹性和非线性两种情况下拱桥的临界荷载系数,同时对比研究了几何非线性、材料非线性以及双重非线性对钢管混凝土拱桥稳定性的影响,并得出了一些有益的结论。
穩定性是控製拱橋設計的一箇關鍵問題,本文首先介紹瞭鋼管混凝土拱橋線性和非線性穩定計算理論,其次以一座上承式鋼管混凝土拱橋--燕崖大橋為依託,通過有限元計算程序,分彆計算瞭線彈性和非線性兩種情況下拱橋的臨界荷載繫數,同時對比研究瞭幾何非線性、材料非線性以及雙重非線性對鋼管混凝土拱橋穩定性的影響,併得齣瞭一些有益的結論。
은정성시공제공교설계적일개관건문제,본문수선개소료강관혼응토공교선성화비선성은정계산이론,기차이일좌상승식강관혼응토공교--연애대교위의탁,통과유한원계산정서,분별계산료선탄성화비선성량충정황하공교적림계하재계수,동시대비연구료궤하비선성、재료비선성이급쌍중비선성대강관혼응토공교은정성적영향,병득출료일사유익적결론。
Stability is the key problem in the control of arch bridge design. This paper first introduces the theory of linear and nonlinear stability of CFST arch bridge, fol owed by a concrete fil ed steel tubular arch bridge--Yan Ya Bridge based on the project, through the finite element calculation program, the critical load coefficient linear elastic and nonlinear two cases of arch bridge were calculated, and the geometric nonlinear influence, comparative study material nonlinear and double nonlinear stability of CFST arch bridge, and some beneficial conclusions are obtained.