A Crack Test Simulation Device for Reinforced Concrete Structures

Abstract

The invention discloses a crack test simulation device for a reinforced concrete structure, and relates to a concrete crack elimination device. A reinforcement cage (1) is placed in a pile hole of a building foundation, a pipeline (6) is inserted into a middle gap of the reinforcement cage, concrete starts to be poured in the pile hole, a motor (12) is started after the concrete is fully poured, and a flexible shaft is driven by a rotation force output by the motor, so that a vibrator (18) and a metal vibration crushing sleeve (17) conduct a vibration force to the concrete at the bottom of the pile hole to achieve elimination for cracks in the concrete; and upper construction personnel lift a flexible shaft sleeve (7) and then a rubber tube (16) moves upwards, the lower end of the pipeline is gradually crushed by vertical plates (24) of the metal vibration crushing sleeve and mixed into the concrete, and after the flexible shaft sleeve is completely pulled out of the pipeline, elimination for most of the cracks in the concrete of the pile hole can be achieved. According to the device disclosed by the invention, the vibrator provided with the metal vibration crushing sleeve stretches into the bottom layer of the concrete through the assistance of the pipeline, and thus the elimination for the cracks in the reinforced concrete is achieved.

Description

【Technical field】 [0001] The invention relates to a concrete crack elimination device, in particular to a crack test simulation device for a reinforced concrete structure. 【Background technique】 [0002] It is known that most of the foundations of buildings, bridge piers and foundations of various large buildings use reinforced concrete to go deep into the ground to form the main support. The foundation load of the plant is transferred to the foundation. These foundations include diaphragm walls formed of reinforced concrete, pier piles formed of reinforced concrete, and hole piles formed of reinforced concrete; for the safety and normal use of buildings, bridges or large buildings, it is required that the diaphragm walls, pier piles or hole piles have sufficient Strength, stiffness and overall stability against excessive horizontal displacement or uneven settlement. [0003] combined with figure 1 The given structure: at present, it is more typical that the concrete pour...

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Problems solved by technology

[0003] combined with figure 1 The given structure: at present, it is more typical that the concrete poured on site needs to be filled between the continuous steel frames set between the templates; or the concrete is filled with the steel cage (1) and the large blind hole dug into the ground by the hole pile " Between the walls; in order to ensure the strength of these foundations, the steel bars of the continuous steel frame and steel cage (1) made of rebar are of higher density, wherein the steel cage (1) is passed through the spring-like rebar (4) The vertical rebar (3) is arranged on the upper circle, and the intersecting points of the spring-like rebar (4) and the vertical rebar (3) are bound and connected by iron wires, and concrete piles (2) are formed after pouring cement; the stone content in the poured concrete Also larger, once a small amount of stones get stuck in a threaded steel place or other objects in the pouring process, it will inevitably cause cracks (5), and these cracks (5) exist in any part of the concrete pile (2); the smaller cracks The appearance of cracks will cause less damage to the foundation; but the appearance of large cracks will not only reduce the strength of the foundation, but also affect the service life of the foundation

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