What is an intelligent tensioning system?

Description
Intelligent tensioning integrates PLC control technology, sensing technology, hydraulic technology, and communication technology. It mainly uses stress value control, and the elongation of the prestressed beam is The auxiliary dual-control control mode is used to control the equipment so that the equipment can automatically work according to the set process and parameters, and complete the entire tensioning process such as graded tensioning and pressure holding. And through the embedded software, the real-time collection and transmission of tension data and the real-time generation of reports, curves, and other functions are realized. There are a variety of models and specifications, which can meet the requirements of working conditions such as single-end tensioning, symmetrical tensioning at both ends, simultaneous symmetrical tensioning of multiple cables, and long prestressed automatic continuous tensioning. It is used in prestressed tensioning construction of bridges, buildings, water conservancies, and other projects.

Composition of intelligent tensioning system
The prestressed intelligent tensioning system of Shaanxi Zhongtuo Bridge is composed of CNC hydraulic pump station, an intelligent core-through steel strand hydraulic jack, a data signal line, a high-pressure oil pipe, high-precision pressure sensor, a data monitoring computer, an operation control system software. The data transmission and communication between the pumping station and the auxiliary pumping station are carried out through the wireless communication module.

Working principle
Prestressed intelligent stretching uses a stress control index and elongation error as proofreading index. The system collects data such as the working pressure of each jack and the elongation of the steel strand through the sensor, displays it on the human-computer interaction touch screen, and transmits the data to the main pumping station machine in real time to issue instructions to synchronously control each of the equipment. The mechanical action can automatically complete the whole stretching process, so as to realize the automatic control of the prestress in the stretching process.