Vertical load loading device and method applicable to out-of-plane unstable frame structure

Abstract

The invention discloses a vertical load loading device and a vertical load loading method applicable to an out-of-plane unstable frame structure. The vertical load loading device comprises a force sensor, a hydraulic jack, a high-strength bolt, a vertical load simulating truss, a strengthening beam, a strengthening beam, a reinforcing angle, a braced steel frame, an oil source, an oil pipe, a controller and a computer; the lower surface of a test piece beam and the upper surface of the hydraulic jack are fixedly consolidated; the lower end of the hydraulic jack is tightly connected with the vertical load simulating truss, the braced steel frame is tightened with the ground by virtue of foot bolts, and the hydraulic jack contains the force sensor and can read magnitude of a real-time vertical force. By virtue of the vertical load loading device and method, a vertical load is applied to a frame structure unstable in out-of-plane, a vertical load value can be accurately obtained, the load is maintained to be constant, and the advantages of definite force transfer, convenience in dismounting, simple operation, safety and reliability are achieved. The device and loading method make up the gap of China in the research field and have stronger practical application value.

Description

【Technical field】 [0001] The invention belongs to the technical field of load test loading, and relates to a vertical load loading device and method suitable for out-of-plane unstable frame structures. 【Background technique】 [0002] On the actual structure or structural model, the loading device is usually used to study the test object, and the various performances of the test object are evaluated by measuring various parameters related to the performance of the test object and the damage state of the test object. However, in the actual operation process, it will be accompanied by various loading problems. For a pure frame structure, when a horizontal load is applied, the out-of-plane deformation stiffness of the pure frame is low, and out-of-plane instability is prone to occur. Generally speaking, after the out-of-plane instability of the structure, the loading test is terminated. Few scholars have studied the changes in the bearing capacity and other properties of the st...

AI Technical Summary

Problems solved by technology

However, in the actual operation process, it will be accompanied by various loading problems

For a pure frame structure, when a horizontal load is applied, the out-of-plane deformation stiffness of the pure frame is low, and out-of-plane instability is prone to occur

Generally speaking, after the out-of-plane instability of the structure, the loading test is terminated. Few scholars have studied the changes in the bearing capacity and other properties of the structure after the out-of-plane instability. One of the main reasons is the lack of loading of the structure after the out-of-plane instability equipment

Images