CAJ | 학술논문

为解决跨越特定障碍物时的无支架施工问题,提出了钢-混凝土组合桥梁悬吊拼接施工工法.该工法的关键技术问题是钢箱梁悬吊拼接过程中的拼接精度与安全控制问题,为此自行设计了钢箱梁拼接定位器装置,实现了箱梁拼接的初步定位与拼接安全性要求.根据钢箱梁拼接精度要求,经过系统的理论分析,推导出钢箱梁段拼接面转角控制值及轴向变形环境温度调节量的通用计算公式,为大跨变截面连续钢箱梁悬吊拼接精度控制提供了技术保障.该工法在解决桥梁跨越特定障碍物无支架施工过程中,表现为快速、安全、实用的特点,具有普遍推广应用的价值.
위해결과월특정장애물시적무지가시공문제,제출료강-혼응토조합교량현조병접시공공법.해공법적관건기술문제시강상량현조병접과정중적병접정도여안전공제문제,위차자행설계료강상량병접정위기장치,실현료상량병접적초보정위여병접안전성요구.근거강상량병접정도요구,경과계통적이론분석,추도출강상량단병접면전각공제치급축향변형배경온도조절량적통용계산공식,위대과변절면련속강상량현조병접정도공제제공료기술보장.해공법재해결교량과월특정장애물무지가시공과정중,표현위쾌속、안전、실용적특점,구유보편추엄응용적개치.
To solve the problem of construction method without scaffolding to across certain obstacles,the cantilever installation construction method of steel-concrete composite beam bridge is put forward.The key technology of this method is the precision and safety controls.In the process of cantilever installation of the steel box girder,therefore,the installation locators is designed,and the preliminary positioning of the box girder and the safety requirements is achieved.According to the accuracy requirement,and after that the system theory analysis,the general formula for corner control values of the spliced face of steel box shaped girder and the axial deformations of environmental temperature regulating value is derived theoretically,and the technical support for cantilever installation precision of long span variable section steel box shaped continuous girder bridges is provided.In the solution of construction process without scaffolding to across certain obstacles,this method shows the quality of fast,safe and practical,and it has general application value.