Device and method for testing sleeve connecting structure grouting compactness in hammering pre-pressing mode

Abstract

The invention discloses a device and method for testing sleeve connecting structure grouting compactness in the hammering pre-pressing mode, and belongs to the field of testing methods and equipment.The bottom periphery of an outer steel structure pre-stressing member is fixed on a wall body of a steel sleeve connecting structure to be detected; a cover body of the outer steel structure pre-stressing member is provided with a through hole, and a nut is fixed at the position of the through hole. A force transmitting rod is a rigid rod body, and the middle portion of the rod body is externallytapped. The force transmitting rod penetrates the through hole in the cover body to be screwed into the nut, and threads on the rod body and the nut are in thread fit for driving the force transmitting rod to move up and down. The bottom of the force transmitting rod is closely supported on a grouting body of the steel sleeve connecting structure to be detected. A dynamic signal collecting sensoris attached to the force transmitting rod. A force measuring hammer is used for knocking the end of the force transmitting rod. The device is utilized to achieve the quality inspection of field connection of assembled structural steel sleeves and complete the quantitative analysis of the grouting density in the sleeve.

Description

technical field [0001] The invention belongs to the field of prefabricated building structure testing, and in particular relates to a device and method for testing the grouting compactness of a sleeve connection structure by hammering and preloading. Background technique [0002] As an emerging green, environmentally friendly and energy-saving building method, the prefabricated building structure has many advantages and has attracted extensive attention from relevant personnel at home and abroad, representing the direction of technological progress in the construction industry. The quality control of the on-site connection of prefabricated components is very important to ensure the safe and normal use of prefabricated buildings, but there is still a lack of effective detection methods in the project, so it is urgent to research and develop methods for the detection and evaluation of the on-site connection quality of prefabricated structures Quality control during and after c...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the defect that the quantitative detection of the grouting density of the reinforcement sleeve is difficult in the prior art, and provide a hammer preloading device for testing the grouting density of the sleeve connection structure, so as to complete the assembly Qualitative or quantitative detection and control of structural on-site connection quality, providing guarantee for the safe and normal use of prefabricated buildings

Images