【摘要】 介绍了通过对原吊杆和临时吊杆、临时吊杆和新吊杆之间力的多次相互转换的控制,采用PLC液压控制系统对系杆拱桥的旧吊杆进行同步张拉更换施工技术,其相关技术参数可供同行参考。更多还原

【Abstract】 The article introduces the synchronous tension replacement construction technology of old boom of bowstring arch bridge by PLC hydraulic control system through the repeatedly mutual conversion control of the force between the old boom and the temporary boom, and the temporary boom and the new boom. The relative technical parameters can be referred for the similar projects.更多还原