摘要
针对装配式梁桥横向刚度不足以及横隔梁开裂等问题,根据相似理论,加工大型缩尺模型进行模型试验,并对其静力特性与抗裂性等加以分析.试验结果表明,横隔梁横向预应力的设置,对桥梁横隔梁的抗裂起到至关重要的作用.最后指出,对于该类型桥梁,增加横隔梁横向预应力,在一定程度上可抵抗超载车辆荷载对横隔梁造成的破坏.
Aiming at the insufficient lateral rigidity and horizontal beam cracking fabricated beam bridges,processing large- scale model to conduct model test based on similarity theory,and the static characteristics and the crack resistance were analyzed. Two results are completed,which shows that the settings of horizontal beams can＇t improve lateral rigidity obviously,but play a crucial role in crack resistance. For this kind of bridge,increasing transverse prestressing can not only improve the anti- crack performance of horizontal beams but also resist the damage caused by overloaded vehicles to some extant.
出处
《佳木斯大学学报（自然科学版）》
CAS
2015年第2期236-239,共4页
Journal of Jiamusi University：Natural Science Edition
关键词
公路桥梁
装配式梁桥
模型试验
横向刚度
抗裂性
highway bridge
precast girder bridge
transverse prestressing
model experience
transverse stiffness
crack resistance
