武汉理工大学学报(交通科学与工程版)
武漢理工大學學報(交通科學與工程版)
무한리공대학학보(교통과학여공정판)
Journal of Wuhan University of Technology (Transportation Science & Engineering)
2015年
5期
978-980,984
,共4页
混凝土拱桥%“释能法”%安全性评价%现场实测%仿真分析
混凝土拱橋%“釋能法”%安全性評價%現場實測%倣真分析
혼응토공교%“석능법”%안전성평개%현장실측%방진분석
concrete arch bridge%“energy-released method”%safety evaluation%field test%simulation analy sis
通过现场试验和仿真计算对西南地区某混凝土拱桥进行了安全性评价分析。结果表明,在活载作用下,加固后各测试截面的应变、挠度实测值与理论计算值均比加固前量值有所减小,截面承受活载能力有所提高,加固后的桥梁承载能力满足公路Ⅰ级荷载的要求,充分证明采用“释能法”提高混凝土拱式桥梁的承载力是完全可行的。
通過現場試驗和倣真計算對西南地區某混凝土拱橋進行瞭安全性評價分析。結果錶明,在活載作用下,加固後各測試截麵的應變、撓度實測值與理論計算值均比加固前量值有所減小,截麵承受活載能力有所提高,加固後的橋樑承載能力滿足公路Ⅰ級荷載的要求,充分證明採用“釋能法”提高混凝土拱式橋樑的承載力是完全可行的。
통과현장시험화방진계산대서남지구모혼응토공교진행료안전성평개분석。결과표명,재활재작용하,가고후각측시절면적응변、뇨도실측치여이론계산치균비가고전량치유소감소,절면승수활재능력유소제고,가고후적교량승재능력만족공로Ⅰ급하재적요구,충분증명채용“석능법”제고혼응토공식교량적승재력시완전가행적。
In order to analyse the influence of the“energy‐released method” reinforcement on the safety factor of bridge ,this paper use field test and simulation calculation to evaluate safety of the stone arch bridge in the southwest China .The result shows that the measured values of strain and deflection de‐crease after reinforcement under live‐loads .The bear capacity of live‐load is also improved after rein‐forcement .The bear capacity of stone arch bridge meet the requirement of high bridge load of gradeⅠ .T he result show s that the use of “energy‐released method” enhance bear capacity of stone arch bridge can be achieved .