高架桥梁施工中梁体升降液压平衡自动控制方法

Automatic control method for hydraulic balance of beam lifting in viaduct construction

梁体升降过程中一旦发生失衡现象,将会很容易导致质量和安全事故的发生。为此,研究一种高架桥梁施工中梁体升降液压平衡自动控制方法。该方法分为两部分:先是以控制速度为目标,设计一种控制器,通过依靠控制液压油缸速度来实现液压平衡;后为控制器设计一种控制算法,该算法为PID模糊控制算法。结果表明:与秦利民,王大江、张宇、王众等人以及张轲、金鑫、涂宝新等人提出的方法相比,利用所研究方法对梁体升降进行液压平衡控制后,梁体倾角最小(0.125°),说明本方法的控制效果最好,实现了梁体升降平衡。

Once the imbalance phenomenon occurs in the process of beam lifting,it will easily lead to the occurrence of quality and safety accidents.Therefore,this paper studies an automatic control method for hydraulic balance of beam lifting in viaduct construction.The method is divided into two parts:firstly,a controller is designed to control the speed of hydraulic cylinder to achieve hydraulic balance;secondly,a control algorithm is designed for the controller,which is PID fuzzy control algorithm.The results show that:compared with the method proposed by Qin Limin,Wang Dajiang,Zhang Yu,Wang Zhong,Zhang Ke,Jin Xin,Tu Baoxin and others,the beam inclination angle is the smallest(0.125°),which indicates that the control effect of this method is the best,and the balance of beam lifting is realized.