工程质量
工程質量
공정질량
Construction Quality
2015年
9期
47-50
,共4页
无背索斜拉桥%曲梁式斜拉桥%桥梁施工%张拉装置
無揹索斜拉橋%麯樑式斜拉橋%橋樑施工%張拉裝置
무배색사랍교%곡량식사랍교%교량시공%장랍장치
cable-stayed bridge without backstage%curved-girder integral cable-stayed bridge%bridge construction%stretch-draw device
无背索斜拉桥因其结构合理、造型优美，逐渐成为城市桥梁中的新宠。其中斜拉索起到实现主梁和索塔间荷载传递并将结构联结成整体的重要作用，因此索的张拉施工尤为关键。通过分析夏驾河步行桥结构形式的特点，指出传统张拉装置在该桥施工过程中可能遇到的问题，提出了一套完整的索力张拉装置，详细介绍了各组成部分的作用，总结了该张拉装置在现场施工中表现出的优点，为今后类似曲梁式斜拉桥的拉索张拉提供了借鉴和参考。
無揹索斜拉橋因其結構閤理、造型優美，逐漸成為城市橋樑中的新寵。其中斜拉索起到實現主樑和索塔間荷載傳遞併將結構聯結成整體的重要作用，因此索的張拉施工尤為關鍵。通過分析夏駕河步行橋結構形式的特點，指齣傳統張拉裝置在該橋施工過程中可能遇到的問題，提齣瞭一套完整的索力張拉裝置，詳細介紹瞭各組成部分的作用，總結瞭該張拉裝置在現場施工中錶現齣的優點，為今後類似麯樑式斜拉橋的拉索張拉提供瞭藉鑒和參攷。
무배색사랍교인기결구합리、조형우미，축점성위성시교량중적신총。기중사랍색기도실현주량화색탑간하재전체병장결구련결성정체적중요작용，인차색적장랍시공우위관건。통과분석하가하보행교결구형식적특점，지출전통장랍장치재해교시공과정중가능우도적문제，제출료일투완정적색력장랍장치，상세개소료각조성부분적작용，총결료해장랍장치재현장시공중표현출적우점，위금후유사곡량식사랍교적랍색장랍제공료차감화삼고。
Cable-stayed bridge without backstage had gradually become the new darling among urban bridges in view of its reasonable structure and elegant mold. Tension of the cables in this kind of bridge was of great significance as they played an important role in the load transfer and combination between main beam and tower. Based on analysis of structural characteristics of Xiajia River pedestrian bridge,some problems in the construction of this bridge were pointed out. In this paper,a complete set of stretch-draw device was brought up and the functions of each elements ware also introduced as well as its advantages in site construction were summarized,which could provide some reference for the tension of cables in structural system like curved-girder integral cable-stayed bridge.
