Jig frame for integrally prefabricating and hoisting large pier body reinforcing steel bars and pier body reinforcing steel bar construction method
A technology of steel reinforcement for pier body and overall prefabrication, which is applied in the erection/assembly of bridges, bridges, buildings, etc., can solve the problem of not adapting to the standardization of bridge construction, the trend of prefabrication, and the inability to realize the overall prefabrication and hoisting of steel reinforcement for large pier bodies, and the platform of the pier body. The problem of slow turnover of brackets and formwork, etc., can shorten the construction period, reduce safety risks, and simplify the structure of the tire frame.
Pending Publication Date: 2020-11-03
GUANGDONG PROVINCIAL CHANGDA HIGHWAY ENG
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Problems solved by technology
This traditional construction method has the following disadvantages: 1. It does not meet the current trend of bridge construction standardization and prefabrication.
2. The construction period of a single pier body is long, and the turnover speed of the pier body platform support and formwork is slow
3. The vertical butt joint of the main reinforcement is relatively difficult, and it is difficult to ensure the installation quality of the sleeve joint
The thickness of the concrete protective layer is difficult to guarantee
4. The process of bulk assembly is a high-altitude operation, and the safety risk is relatively large
However, it is impossible to realize the overall prefabricated hoisting of large pier body reinforcement
Method used
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[0018] The present invention will be further described below in conjunction with the accompanying drawings.
[0019] like Figure 1 to Figure 4 As shown, the tire frame for integrally prefabricated hoisting of large-scale pier steel bars includes a main frame 1 composed of square steel (its model is 20×20cm, wall thickness 2cm), and the front and rear sides and left and right sides of the main frame are There are cross bars 2 (using 12# channel steel) and several reinforcing bars 3 (using 12# channel steel) respectively on the surface, and the cross bars 2 are arranged on the front, rear and left and right sides of the main frame 1 In the middle of the surface, the lower half of the front and rear sides of the main frame 1 is quadrangular, and the upper half is trapezoidal. The reinforcing rod 3 is arranged between the main frame 1 and the cross bar 2 and forms a rhombus The top and the bottom of the main frame 1 are respectively provided with some steel clips 4, and each of ...
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The invention discloses a jig frame for integrally prefabricating and hoisting large pier body reinforcing steel bars, and the jig frame comprises a main frame composed of square steel, wherein the front side face, the rear side face, the left side face and the right side face of the main frame are provided with transverse rods and a plurality of reinforcing rods respectively, and the transverse rods are arranged in the middles of the front side face, the rear side face, the left side face and the right side face of the main frame; the reinforcing rods are arranged between the main frame and the transverse rods and define a rhombus; a plurality of steel clamping pieces are arranged at the top and the bottom of the main frame respectively, and a plurality of clamping grooves used for clamping reinforcing steel bars are evenly formed in each steel clamping piece at intervals. Standardization and prefabrication of large pier body steel bar construction are achieved, the turnover speed ofthe pier body platform support and the formwork is increased, the investment cost is reduced, the construction difficulty is reduced, the steel bar installation precision is guaranteed, and the jig frame is simple in structure, easy to manufacture and high in repeated utilization rate.
Description
technical field [0001] The invention relates to the technical field of integral prefabricated hoisting and construction of pier body steel bars in bridge construction, in particular to a tire frame and pier body steel bar construction method for integrally prefabricated hoisting of large-scale pier body steel bars. Background technique [0002] Traditionally, the construction of steel bars for the pier body is all in bulk, and the operators install the main bars, stirrups, and tie bars one by one on the construction platform support. This traditional construction method has the following disadvantages: 1. It does not meet the current trend of bridge construction standardization and prefabrication. 2. The construction period of a single pier body is long, and the turnover speed of the pier body platform support and formwork is slow. 3. The vertical butt joint of the main reinforcement is relatively difficult, and it is difficult to ensure the installation quality of the slee...
Claims
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IPC IPC(8): E01D21/00
CPCE01D21/00
Inventor 周志鸿吴伟豪罗军黄建富杨超王铭
Owner GUANGDONG PROVINCIAL CHANGDA HIGHWAY ENG