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随着我国经济的快速增长,我国的汽车保有量逐渐增加。私家车保有量的快速增加导致城市内传统交通形式难以满足交通量的需求。立交桥作为交通节点的一种交通形式,可以有效地缓解交通压力,规范行车秩序,避免交通堵塞。但是由于立交桥桥型变化大,占地面积多等原因,在市区的中心地带进行立交桥的施工会出现难度大,施工难点多的问题。本文根据常年施工经验以及对市政立交桥施工技术的理论研究对市区中心地带立交桥施工方法进行了以下几点研究:(1)对现有的立交桥施工技术进行相应的理论研究,并结合市区中心地带立交桥施工的主要施工问题,分析研究施工技术的优劣性;(2)根据市区中心地带立交桥施工条件以及施工技术要求,对现有的市区中心地带立交桥施工技术进行研究,并提出相应的改进措施;(3)结合实际工程对改进措施进行试验验证,并结合有限元计算软件对市区中心地带立交桥施工进行模拟分析,验证其有效性;
With the rapid economic growth in our country, the car ownership in our country is gradually increasing. The rapid increase in the number of private cars has led to the difficulty of meeting the demand for traffic in traditional forms of transport in cities. As a form of transportation for traffic nodes, overpasses can effectively relieve traffic pressure, standardize driving order and avoid traffic jams. However, due to the large changes in the type of overpass bridge and its large area, the construction of overpasses in the urban center will be difficult and difficult to construct. Based on the perennial construction experience and the theoretical study on the construction technology of the municipal overpass, this paper makes the following research on the construction methods of the overpass in the downtown area: (1) Make a theoretical study on the existing overpass construction technology, combined with the urban center (2) According to the construction conditions of the overpass in downtown area and the technical requirements of construction, the existing construction technology of overpass in downtown area is researched and put forward correspondingly (3) Experimental verification of the improvement measures combined with the actual project, and the simulation analysis of the construction of overpass in downtown area with the finite element calculation software to verify its effectiveness;