钢管拱肋安装及空间定位控制

随着近年来钢管拱桥在我国桥梁建设上的不断应用,钢管拱肋的安装技术以及空间定位控制技术也进一步得到完善。然而,在钢管拱肋的安装阶段时常会出现钢管拱在一定程度上没能按照加工预拼线形控制的现象,或者出现钢管拱的长度变短现象,最后导致钢拱肋在合拢阶段需要对接头进行特别的技术处理,也因此使得拱肋轴线也在一定程度上出现了较大的误差。所以说,钢管拱肋安装及空间定位技术是钢管拱桥建设的过程中需要解决的首要问题。因此,本文将进一步从理论上对钢管拱肋安装技术以及空间定位的控制问题进行必要阐述。

with steel arch bridge in China in recent years on the bridge construction,the continuous application of steel arch rib installation technology and space positioning control technology has further improved.However,in steel tube arch rib installation phase often will appear in a certain extent of the steel tube arches can＇t spell the linear control according to advance the process appeared phenomenon,or the length of steel tube arches of short phenomenon,which eventually led to steel arch ribs in joint closed on stage requires special technique processing,also led to arch rib axis in a certain extent also appeared greater error.Say so,steel tube arch rib installation and spatial orientation technology is steel tube arch bridge construction process need to solve the most important question.Therefore,this article will further theoretically the steel tube arch rib installation technology and spatial orientation necessary control problem of the paper.