缅甸曼德勒大桥钢梁合龙技术

Techniques for Closing Steel Girders of Mandalay Bridge in Myanmar

缅甸曼德勒大桥结构为刚性拱柔性梁,施工时先合龙边拱后合龙中拱。根据钢梁的结构、施工条件和自然环境特点,制定科学、经济、可靠的施工技术,在不施加外力的情况下,仅通过调整三向位移实现钢梁合龙的零误差。介绍该桥钢梁合龙技术。

The Mandalay Bridge in Myanmar is structurally a rigid arch and flexible girder bridge. During construction of the Bridge, the closing of the side arches was carried out prior to that of the main arch. In the light of the characteristics of the steel girder structure, construction conditions of the Bridge and natural environment where the nomic and reliable construction techniques were formulated girders of the Bridge was achieved just by adjusting displace Bridge is located, and the zero error ment without applying external forces. In this paper, the construction ers are dealt with. the scientific, ecoof closing the steel of the girders in three directions techniques for closing the girders are dealt with.