Assembled concrete wall vertical main reinforcement grouting-free connection structure
A grouting connection and concrete technology, applied in the direction of structural elements, building components, building structures, etc., can solve the problems of cumbersome operation process, small operation space, and unguaranteed welding quality, and achieve strong gripping ability, stable assembly, The effect of reducing the difficulty of inserting tendons
Active Publication Date: 2019-06-28
CHINA METALLURGICAL CONSTR ENG GRP
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Problems solved by technology
Although the strength of this method is guaranteed, it is still necessary to set reserved holes and operation holes in the shear wall or column, and then grout and seal after the connection later. The operation process is too cumbersome, and the operation space is small during welding. quality cannot be guaranteed
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[0028] like Figure 1-Figure 7 As shown, the prefabricated concrete wall vertical main reinforcement grouting-free connection structure provided in this embodiment includes an upper shear wall 1 with a plurality of upper vertical reinforcements 3 inside and a lower shear wall with a plurality of lower vertical reinforcements 4 inside. Wall 2; the length of the upper vertical reinforcement 3 is less than the longitudinal height of the upper shear wall 1, the lower vertical reinforcement 4 corresponds to the upper vertical reinforcement 3 one by one, and the upper end of the lower vertical reinforcement 4 stretches out Outside the connecting end of the shear wall 2; in the upper shear wall 1, the lower end of each upper vertical steel bar 3 is provided with a connecting cylinder 5 whose bottom is on the same plane as the bottom surface of the upper shear wall 1, and the connecting cylinder 5 consists of an upper sleeve 51 and a lower sleeve 52, the lower end of the upper vertica...
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The invention discloses an assembled concrete wall vertical main reinforcement grouting-free connection structure. According to the assembled concrete wall vertical main reinforcement grouting-free connection structure, a connection cylinder of which the bottom is located in the same plane with the bottom face of an upper shear wall is arranged at the lower end of each upper vertical steel bar, inthe upper shear wall, and each connection cylinder is composed of an upper sleeve and a lower sleeve; each lower sleeve sleeves multiple arc clamping blocks, and the arc clamping blocks are connectedthrough springs to define a clamping part with a middle elastic clamping hole; the longitudinal height of each arc clamping block in the clamping part is equal to the interval between a limit step face and the bottom of the corresponding lower sleeve, and under side extrusion of external force, the clamping part can shrink radially and tighten the corresponding lower vertical steel bar; meanwhile, when the clamping part moves upward, arc protrusion parts tightly cooperate with corresponding clamping holes, and the arc clamping part tightly cooperates with a corresponding bottom assembling hole. By the adoption of the assembled concrete wall vertical main reinforcement grouting-free connection structure, main reinforcing bars are convenient to connect, no later grouting and closing are needed, and the connection strength is high.
Description
technical field [0001] The invention relates to a prefabricated building installation structure, in particular to a prefabricated concrete wall vertical main reinforcement grout-free connection structure. Background technique [0002] In prefabricated buildings, there are a large number of node connections and joint connections, and the connection of steel bars is undoubtedly the most widely used and most important key technology. At present, the most widely used steel bar connection structure is the grouting sleeve connection. When the grouting sleeve is used to connect the upper and lower steel bars, the upper and lower corresponding steel bars are inserted into the butt joint sleeve, and then the grouting machine is inserted into the sleeve. Inject the non-shrinkage high-strength grouting material composed of cement, expansion agent, fine aggregate and high-performance admixture. When the grouting material hardens, the steel bar and the sleeve are firmly connected into on...
Claims
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IPC IPC(8): E04C5/16
Inventor 李红军刘辉朱洪兴
Owner CHINA METALLURGICAL CONSTR ENG GRP