中国建材科技
中國建材科技
중국건재과기
CHINA BUILDING MATERIALS SCIENCE & TECHNOLOGY
2013年
2期
89-90
,共2页
高寒地区%无缝线路%特大桥%设计
高寒地區%無縫線路%特大橋%設計
고한지구%무봉선로%특대교%설계
alpine region%seamless line%grand bridge%design
桥上无缝线路铺设时,除了要考虑轨道的强度及稳定性外,还必须考虑无缝线路与桥梁之间的相互作用.小南川1号桥为青藏线格拉段较有代表性的预应力钢筋混凝土T型梁曲线桥,在无缝线路设计中,需考虑高寒地区的气候条件,从桥上无缝线路伸缩附加力、挠曲力、断轨力及钢轨强度与稳定性入手,充分论证高寒地区桥上无缝线路铺设的安全性,并提出相应的施工方法及安全储备措施.
橋上無縫線路鋪設時,除瞭要攷慮軌道的彊度及穩定性外,還必鬚攷慮無縫線路與橋樑之間的相互作用.小南川1號橋為青藏線格拉段較有代錶性的預應力鋼觔混凝土T型樑麯線橋,在無縫線路設計中,需攷慮高寒地區的氣候條件,從橋上無縫線路伸縮附加力、撓麯力、斷軌力及鋼軌彊度與穩定性入手,充分論證高寒地區橋上無縫線路鋪設的安全性,併提齣相應的施工方法及安全儲備措施.
교상무봉선로포설시,제료요고필궤도적강도급은정성외,환필수고필무봉선로여교량지간적상호작용.소남천1호교위청장선격랍단교유대표성적예응력강근혼응토T형량곡선교,재무봉선로설계중,수고필고한지구적기후조건,종교상무봉선로신축부가력、뇨곡력、단궤력급강궤강도여은정성입수,충분론증고한지구교상무봉선로포설적안전성,병제출상응적시공방법급안전저비조시.
The seamless line on the bridge should considering track strength and stability,besides,it must considering the interaction between seamless and bridge.Xiao Nan-chuan 1# Bridge in the curve section which is a reinforced concrete T type beam bridge has representative of Qing-Zang rail line Ge-La section.The paper considering the alpine climate condition,and analysis the interaction of additional expansion and contraction forces、bending forces、broken rail forces and strength and stability,demonstration safety of seamless line in the alpine region,and supposed corresponding construction measures.
