In-situ radial compression detection device for grouting void defects of steel bar connecting sleeve
A technology of steel connecting sleeve and detection device, which is applied in the direction of measuring device, using stable tension/pressure test material strength, instrument, etc., can solve the problem of difficulty in guaranteeing the quality of steel sleeve grouting, and achieve fast and convenient detection and operation steps. Simple, easy to assemble effect
Pending Publication Date: 2020-04-21
HOHAI UNIV
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Problems solved by technology
However, due to problems in technology, management and workers' sense of responsibility in actual engineering, it is difficult to guarantee the quality of steel sleeve grouting
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[0035] The in-situ radial compression detection device for the grouting void defect of the steel bar connection sleeve and its use method will be further described below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present invention and can be implemented.
[0036] The examples described here are specific specific implementations of the present invention, and are used to illustrate the concept of the present invention. They are all explanatory and exemplary, and should not be construed as limiting the implementation of the present invention and the scope of the present invention. In addition to the embodiments described here, those skilled in the art can also adopt other obvious technical solutions based on the claims of the application and the contents disclosed in the description, and these technical solutions include adopting any obvious changes made to the embodiments described here. Repl...
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Abstract
The invention discloses an in-situ radial compression detection device for grouting void defects of a steel bar connecting sleeve and a using method of the device. The device comprises a detection part and a loading part, in the detection part, an L-shaped support is fixed to the front end of a hydraulic jack, and a C-shaped clamp is formed by the L-shaped support and the hydraulic jack; an LVDT displacement sensor is fixed to the hydraulic jack through a clamp, an iron core connecting rod of the split type LVDT displacement sensor is connected with a piston rod of the hydraulic jack through an iron core connecting rod connecting piece, and the iron core connecting rod is further connected with an inner iron core of the LVDT displacement sensor. When the iron core connecting rod connectingpiece is fixed by a spin lock, the iron core connecting rod connecting piece slides relative to the piston rod, and when the iron core connecting rod connecting piece is not fixed by the spin lock, the iron core connecting rod connecting piece and the piston rod move consistently; and the loading part comprises a data line, a leather hose, an LVDT displacement data display instrument, a pressuregauge and a manual pump. According to the technical scheme, whether the grouting sleeve has the void defect or not can be quickly, simply and conveniently judged on site, and the size and the positionof the void defect are judged.
Description
technical field [0001] The invention belongs to the field of prefabricated buildings, and in particular relates to an in-situ radial compression detection device for steel bar connection sleeve grouting void defects and a method for using the same. Background technique [0002] Compared with the cast-in-place reinforced concrete structural system, the prefabricated concrete structural system has many advantages. Prefabricated concrete structure, centralized production of component factories, has the advantages of high degree of industrialization, low noise and pollution of on-site construction, high efficiency, short construction period, easy control of product quality, high utilization rate of building materials, etc. Industrialized production makes waste water and waste control And recycling is easy to realize. In addition, prefabricated buildings can overcome the seasonal restrictions of building construction, prefabricated components can be produced continuously through...
Claims
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IPC IPC(8): G01N3/12G01N3/02G01N3/06
CPCG01N3/02G01N3/06G01N3/12G01N2203/0019G01N2203/0298G01N2203/0676G01N2203/0682
Inventor 周继凯李友军盛慧敏林成欢叶能君张伦超
Owner HOHAI UNIV