预应力混凝土桁架梁桥施工过程中的变形控制

摘要

本文在结合了国内外预应力混凝土桁架梁桥的发展状况与施工变形控制技术发展趋势的基础上，系统的对预应力混凝土桁架梁桥的施工变形控制技术进行了研究。依托武坚生产桥为研究背景，根据桁架梁桥施工的流程及特点，制定了全面的监测系统。希望能对今后同类型桥梁设计、施工、变形控制提供合理的参考。%Through the analysis and summary of the development of prestressed concrete truss beam and the developmental tendency of the construction deformation monitoring techniques in our nationand abroad, drag of large-span prestressed concrete truss beam bridge engineering deformation monitoring technology is studied in this paper. Taking Wu Jian production bridge as the research background, and basing on the construction process and characteristics of truss girder bridge, we develope a comprehensive monitoring system. In a word, we try our best to provide reasonable reference for the same type bridge design, construction and deformation control in the future.