广东公路交通
廣東公路交通
엄동공로교통
GUANGDONG HIGHWAY COMMUNICATIONS
2011年
2期
5-10
,共6页
连续刚构桥%墩顶块%仿真分析%抗裂性能
連續剛構橋%墩頂塊%倣真分析%抗裂性能
련속강구교%돈정괴%방진분석%항렬성능
Continuous rigid frame bridge%pier top block%simulation%crack resistance
综合运用MIDAS和ANSYS计算软件,对广东省内某大跨径连续刚构桥主桥墩顶块(0号块)在施工阶段和营运阶段的受力情况进行了空间仿真及其抗裂性能分析。研究结果表明,在施工阶段最大悬臂端荷载作用下,横隔板的人洞顶部、横隔板与底板的交界处、横隔板与腹板的连接处等局部区域均产生较大的拉应力。若采用C60混凝土,则不能满足04规范的抗裂要求;若采用新材料"钢纤维聚合物结构混凝土(SFPSC)",则可全面满足抗裂要求。
綜閤運用MIDAS和ANSYS計算軟件,對廣東省內某大跨徑連續剛構橋主橋墩頂塊(0號塊)在施工階段和營運階段的受力情況進行瞭空間倣真及其抗裂性能分析。研究結果錶明,在施工階段最大懸臂耑荷載作用下,橫隔闆的人洞頂部、橫隔闆與底闆的交界處、橫隔闆與腹闆的連接處等跼部區域均產生較大的拉應力。若採用C60混凝土,則不能滿足04規範的抗裂要求;若採用新材料"鋼纖維聚閤物結構混凝土(SFPSC)",則可全麵滿足抗裂要求。
종합운용MIDAS화ANSYS계산연건,대광동성내모대과경련속강구교주교돈정괴(0호괴)재시공계단화영운계단적수력정황진행료공간방진급기항렬성능분석。연구결과표명,재시공계단최대현비단하재작용하,횡격판적인동정부、횡격판여저판적교계처、횡격판여복판적련접처등국부구역균산생교대적랍응력。약채용C60혼응토,칙불능만족04규범적항렬요구;약채용신재료"강섬유취합물결구혼응토(SFPSC)",칙가전면만족항렬요구。
By making use of MIDAS and ANSYS calculation software,space simulation and crack resistance performance analysis of piers top block(block 0) of a large main-span continuous rigid frame bridge in Guangdong province in the construction phase and operation phase.The results show that during the construction phase of the largest cantilever loads,the diaphragm hole at the top of manhole,the diaphragm and the bottom junction of the diaphragm and the web connections and other local area have a greater pull stress.The use of C60 concrete,which cannot meet the requirements of 04 specifications of the crack resistance;the use of new materials "structural steel fiber polymer concrete(SFPSC)" can fully meet the requirements of crack resistance.