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近些年来我国的经济快速发展,直接对我国的交通系统提出了相当高的要求。随着我国交通系统的快速发展,大量大跨径桥梁被广泛应用于各个等级的公路工程中。随着大跨径桥梁的快速发展,大跨径桥梁的施工技术直接成为了决定我国大跨径桥梁发展速度的重要因素。顶推法作为大跨径桥梁施工的主要工法,由于其施工简便,占地面积小,安全性高等优点,逐渐成为大跨径桥梁的研究重点。本文根据对大跨径桥梁施工技术进行相应的理论研究并结合实际工作经验进行了一下几点研究:(1)对现有的大跨径连续梁桥的施工技术进行相应的研究,主要研究现有的顶推法的施工技术理论,并根据对不同的施工技术进行相应的分析与研究,研究各种方法之间的优劣性;(2)通过对理论进行相应的研究,结合实际施工终于到的施工难题,对现有的顶推法施工技术进行相应的研究与改进;(3)针对改进顶推法施工法采用有限元分析软件和线性回归理论对相应工法进行模拟分析,针对模拟分析结果评价改进措施是否有效。
In recent years, the rapid economic development in our country has set quite high demands on our transportation system. With the rapid development of China’s transportation system, a large number of large-span bridges are widely used in various grades of highway projects. With the rapid development of long-span bridges, the construction technology of long-span bridges has directly become an important factor that determines the speed of development of long-span bridges in China. As the main method of long-span bridge construction, push-push method has gradually become the focus of research on long-span bridges because of its simple construction, small occupied area and high safety. Based on the theoretical research on the construction technology of long-span bridges and the practical work experience, this paper makes a few studies: (1) The existing research on the construction technology of long-span continuous beam bridges is mainly studied And some push the construction technology theory, and according to the different construction techniques for the corresponding analysis and research to study the advantages and disadvantages between the various methods; (2) by the theory of the corresponding research, combined with the actual construction finally (3) According to the improved push-push construction method, the finite element analysis software and linear regression theory are used to simulate the corresponding working methods. According to the simulation analysis The results evaluate whether the improvement measures are effective.