城市建筑
城市建築
성시건축
URBANISM AND ARCHITECTURE
2014年
4期
276-277
,共2页
不对称外倾拱%方案设计%结构计算
不對稱外傾拱%方案設計%結構計算
불대칭외경공%방안설계%결구계산
asymmetric camber arch%scheme design%structu-re calculation
云南大理下关泰安桥为提升通行能力,在原桥两侧新建两座人行桥,人行桥设计为不对称外倾拱桥。不对称拱桥由于仅在单侧设置拉索(吊杆),所以需在提供竖向支撑力和保证主梁稳定性之间寻求平衡。本文研究了三种设计方案,为类似桥梁设计提供参考。
雲南大理下關泰安橋為提升通行能力,在原橋兩側新建兩座人行橋,人行橋設計為不對稱外傾拱橋。不對稱拱橋由于僅在單側設置拉索(弔桿),所以需在提供豎嚮支撐力和保證主樑穩定性之間尋求平衡。本文研究瞭三種設計方案,為類似橋樑設計提供參攷。
운남대리하관태안교위제승통행능력,재원교량측신건량좌인행교,인행교설계위불대칭외경공교。불대칭공교유우부재단측설치랍색(조간),소이수재제공수향지탱력화보증주량은정성지간심구평형。본문연구료삼충설계방안,위유사교량설계제공삼고。
Yunnan Dali Shimonoseki Tai’an Bridge to enhan-ce capacity, built two new footbridges the on both sides of the original bridge, designed as the unsymmetrical extroversion arch bridge. Because of asymmetric arch bridge cable is prov-ided only in the unilateral (boom), so need to provide vertical support and guarantee the balance between the stability of ma-in girder. This paper studies three kinds of design schemes, w-hich wil provide reference for similar bridge design.