Device and method for measuring bonding shearing strength of cast-in-place concrete and prefabricated concrete of superposition shearing wall
A technology of prefabricated concrete and superimposed shear wall, which is applied in the direction of measuring device, using a stable shear force to test the strength and strength properties of materials, etc. Problems such as lack of research and testing, no formation, etc., achieve the effect of simple and clear device, easy to use, and economical guarantee
Inactive Publication Date: 2016-04-20
NANJING UNIV OF TECH +1
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Problems solved by technology
At the same time, although the industrial production of prefabricated wall panels and the configuration of self-compacting concrete are relatively mature, there is a lack of research and testing on the interface bonding performance between prefabricated walls and cast-in-situ self-compacting concrete. Mechanisms for interfacial bonding properties are also not developed
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[0019] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0020] like Figure 1-3 As shown, a device for measuring the bonding shear strength of cast-in-place concrete and precast concrete in composite shear walls, including base 1, jack 2, force sensor 3, steel member 4, flange plate 5, strip concrete 6, Cast-in-place concrete 7, precast concrete 8 and load collector;
[0021] The base 1 is fixed on the ground or the reaction frame, the jack 2 is mounted on the base 1 through the flange 5, the force sensor 3 is mounted on the jack 2 through the flange 5, and the steel member 4 is mounted on the jack 2 through the flange 5. The flange 5 is installed on the force sensor 3, and the force sensor 3 is connected to the load collector through an insulated wire;
[0022] The cut strip concrete 6 is cut on the surface of the composite shear wall, and the composite shear wall is composed of two prefabricated...
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Abstract
The invention discloses a device and method for measuring the bonding shearing strength of cast-in-place concrete and prefabricated concrete of a superposition shearing wall. The device comprises a base, a jack, a force sensor, an insulation electric wire, a steel accessory, flange plates, a bolt, cut-strip concrete and a load collector. The base is erected on the ground or a wall or a column or a counter-force frame, and the jack is erected on the base. One end of the force sensor is connected with the jack through a connecting piece, and the other end of the force sensor is connected with the steel accessory through a connecting piece. The insulation electric wire of the force sensor is connected with the load collector. A protruding part is arranged at one end of the steel accessory and is embedded into the cut-strip concrete in the superposition shearing wall. The device can really measure the bonding shearing strength of the cast-in-place concrete and the prefabricated concrete of the superposition shearing wall under different site conditions, and has the advantages of being flexible to demount, capable of being recycled, low in cost and the like.
Description
technical field [0001] The invention relates to a detection device, in particular to a device and method for measuring the bonded shear strength of cast-in-place concrete and prefabricated concrete of a composite shear wall. Background technique [0002] With the continuous development of building industrialization, laminated energy-saving shear walls came into being. This is a concrete assembly structure system. Its principle is mainly to use prefabricated reinforced concrete composite beams and slabs, and connect walls, slabs and nodes into a whole through embedded parts, reinforced concrete post-casting parts, etc. to form an overall structural system. The laminated wall structure uses self-compacting high-performance concrete for laminated walls with dense steel bars, giving full play to the common advantages of self-compacting high-performance concrete and laminated walls, reducing the difficulty of concrete construction for laminated wall structures, and saving labor ...
Claims
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Login to View More IPC IPC(8): G01N3/24
CPCG01N3/24G01N2203/0262G01N2203/0048G01N2203/0025
Inventor 叶燕华孟龙飞缪汉良李宁方爱斌肖凯成
Owner NANJING UNIV OF TECH