A device for detecting shear strength of porous brick wall masonry and its application method

Abstract

The invention discloses a detection device for shear strength of porous brick wall masonry and a use method thereof. The detection device is characterized by comprising a control system, a hydraulic system and a detection system, wherein the detection system comprises a left vertical column of detection platform, a right vertical column of detection platform, a horizontal cross beam, a longitudinal load simulating device, a horizontal load simulating device, a porous brick wall masonry, a monitoring mounting base and a high-frequency impacting base; a filling area is formed in the porous brickwall masonry; spiral filling stirrups are arranged on the periphery of the inner walls of the filling area; the spiral filling stirrups are bound with the longitudinal reinforcements in the filling area. The detection device disclosed by the invention has the advantages that the anti-seismic property can be evaluated and constructed through the test for directly simulating the porous brick wall masonry under different conditions and the simulation for different conditions of the porous brick wall masonry under the conditions of different components and loads can be realized through a relatedcontrast test on the basis of the monitoring data of a monitoring sensing patch.

Description

technical field [0001] The invention relates to a construction detection device, in particular to a detection device for the shear strength of porous brick wall masonry and a method for using the same. Background technique [0002] After the Wenchuan earthquake, people paid more attention to the seismic performance of structures. The walls of brick-concrete structures mostly showed shear failure, bending shear overturning failure and bending failure; The strength plays a big role, and the walls in the masonry structure often produce crossed oblique cracks. The reason for the cracks is that the shear strength of the wall is insufficient, so the shear strength of the masonry is directly related to the seismic performance of the masonry structure. . [0003] In the current national standard "Technical Standards for Field Testing of Masonry Engineering" GB / T50315-2011, the methods for field testing of masonry shear strength include in-situ single-shear method and in-situ double...

AI Technical Summary

Problems solved by technology

Disadvantages of the in-situ single-shear method: (1) When the in-situ single-shear method is used for on-site detection of masonry projects, in order to facilitate the detection work, the detection parts are mostly selected on the wall under the window opening, and these parts are generally on the outer wall. However, the masonry quality of the external wall under the window opening is often poor, resulting in low test results; (2) It is laborious to manufacture the test pieces, and the test preparation takes a long time

This method uses core samples to be drilled, and the core samples are tested, and the specific conditions of the porous brick wall cannot be judged as a whole. This method is very localized, and there is a problem of missing detection points.

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