佳木斯大学学报(自然科学版)
佳木斯大學學報(自然科學版)
가목사대학학보(자연과학판)
JOURNAL OF JIAMUSI UNIVERSITY (NATURAL SCIENCE EDITION)
2015年
2期
236-239
,共4页
公路桥梁%装配式梁桥%模型试验%横向刚度%抗裂性
公路橋樑%裝配式樑橋%模型試驗%橫嚮剛度%抗裂性
공로교량%장배식량교%모형시험%횡향강도%항렬성
highway bridge%precast girder bridge%transverse prestressing%model experience%trans-verse stiffness%crack resistance
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。
針對裝配式樑橋橫嚮剛度不足以及橫隔樑開裂等問題,根據相似理論,加工大型縮呎模型進行模型試驗,併對其靜力特性與抗裂性等加以分析。試驗結果錶明,橫隔樑橫嚮預應力的設置,對橋樑橫隔樑的抗裂起到至關重要的作用。最後指齣,對于該類型橋樑,增加橫隔樑橫嚮預應力,在一定程度上可牴抗超載車輛荷載對橫隔樑造成的破壞。
침대장배식량교횡향강도불족이급횡격량개렬등문제,근거상사이론,가공대형축척모형진행모형시험,병대기정력특성여항렬성등가이분석。시험결과표명,횡격량횡향예응력적설치,대교량횡격량적항렬기도지관중요적작용。최후지출,대우해류형교량,증가횡격량횡향예응력,재일정정도상가저항초재차량하재대횡격량조성적파배。
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 , in-creasing transverse prestressing can not only improve the anti -crack performance of horizontal beams but also re-sist the damage caused by overloaded vehicles to some extant .