Dynamic detection and evaluation method for connection states of joints in pile beam structure

Abstract

The purpose of the present invention is to provide a dynamic detection and evaluation method for connection states of joints in a pile beam structure. The pile beam structure comprises a plurality of pile beam connection portions formed by pile foundation sections and beam sections. The method comprises the following steps: determining layout positions of a plurality of detection points on each connection portion, and installing a detection device on the pile beam structure for monitoring each detection point; determining a corresponding vibration point according to the layout position to generate a vibration wave through the vibration point; and according to the time when the vibration wave reaches to each detection point and which is detected by the detection device, and the layout position, respectively obtaining the propagation velocity of the vibration wave on each beam section and the propagation velocity of the vibration wave from each beam section to the corresponding pile foundation section, and analyzing the propagation velocity of the vibration wave according to the mathematical statistics method to obtain an abnormal velocity threshold, so that the abnormal pile beam connection portion can be determined, and detection and evaluation can be carried out on the abnormal pile beam connection portion. Compared with the prior art, the method provided by the present invention can implement effective detection on the connection state of the pile beam structure and evaluation on overall structural performance of the pile beam structure.

Description

technical field [0001] The invention belongs to the field of construction engineering, and in particular relates to a dynamic detection and evaluation method for the connection state of pile-beam structure nodes. Background technique [0002] As a commonly used building structure, the pile-beam structure is mainly composed of beams and pile foundations, and is widely used in various construction sites, such as pile-beam structures such as high-piled wharves. [0003] In the process of practical application, the connection state of the pile-beam structure has a great influence on the stress state and displacement of the erected bent frame or frame. In severe cases, it may cause damage or collapse of the bent frame or frame, resulting in serious accident. However, in the prior art, there is no effective detection method for the detection method of the connection state of the pile-beam structure, so that it is easy to cause hidden dangers in the actual use of the built bent fr...

AI Technical Summary

Problems solved by technology

[0003] In the process of practical application, the connection state of the pile-beam structure has a great influence on the stress state and displacement of the erected bent frame or frame. In severe cases, it may cause damage or collapse of the bent frame or frame, resulting in serious accident

However, in the prior art, there is no effective detection method for the detection method of the connection state of the pile-beam structure, so that it is easy to cause hidden dangers in the actual use of the built bent frame or frame.

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