Concrete slab for floor (room) face plate and fabrication method thereof
A concrete slab and concrete technology, which is applied in the treatment of floors, roofs, building materials, etc., can solve the problems such as the inability to set the tension and anchor points of the prestressed steel bars, the increase in the amount of concrete and steel bars, and the difficulty of construction and pouring, and achieve compression resistance. The effect of high strength, prevention of crack development and extension, and easy construction
Inactive Publication Date: 2013-12-25
TIANSHUN GROUP
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Problems solved by technology
[0002] At present, prestressed concrete components are mostly used in bridges and long-span building structures, and are rarely used in ordinary building construction. They are often used in the form of unbonded prestressed. The main reason is that the tension anchor points of prestressed steel bars cannot be set. , the construction is difficult; in addition, the application of high-strength steel bars in the construction of ordinary houses is often limited by the crack width specified in the existing codes, and cannot be applied and promoted in a large area, especially the concrete slab of the building (roof) panel, when designing It is necessary to increase the amount of ordinary steel bars and the thickness of the concrete protective layer to solve the problem of crack development, resulting in a substantial increase in the amount of concrete and steel bars, and difficulties in construction and pouring.
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Embodiment 1
[0021] This embodiment is a concrete slab used for floor (roof) panels, the structure is as figure 1 As shown, it includes at least one prestressed concrete bar at the position of the steel bar in the lower layer of the steel mesh, the steel mesh 4 above the prestressed concrete bar, and the concrete 2 wrapped around the prestressed concrete bar and the steel mesh; the structure of the prestressed concrete bar is as follows figure 2 and image 3 As shown, it includes at least one prestressed steel bar 1 and concrete 2 wrapped around the prestressed steel bar. The outer surface of the prestressed concrete rod is provided with outwardly protruding concrete ribs 3, and the concrete ribs 3 are continuous spiral or not Evenly spaced strips are connected, and the concrete rib 3 forms an included angle of 45° to 86° with the horizontal line in the length direction of the prestressed concrete rod. By setting the concrete rib 3 and the included angle of 45° to 86°, on the one hand, th...
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The invention relates to a concrete slab for a floor (room) face plate and a fabrication method thereof. The concrete slab comprises at least one prestressed concrete rod, a reinforcing steel bar mesh and concrete, wherein the at least one prestressed concrete rod is located on lower-layer reinforcing steel bars of the reinforcing steel bar mesh, the reinforcing steel bar mesh is located above the prestressed concrete rod, and the concrete wraps around the prestressed concrete rod and the reinforcing steel bar mesh; the prestressed concrete rod comprises at least one prestressed reinforcing steel bar and concrete wrapping around the prestressed reinforcing steel bar. The concrete slab has the advantages that the crack development is prevented, the strength is high, the resources of reinforcing steel bars and concrete are saved, the cost is low, the construction is simple and convenient, and the like.
Description
technical field [0001] The invention relates to a method for making concrete components, in particular to a concrete slab used for building (roof) panels and a method for making the same. Background technique [0002] At present, prestressed concrete components are mostly used in bridges and long-span building structures, and are rarely used in ordinary building construction. They are often used in the form of unbonded prestressed. The main reason is that the tension anchor points of prestressed steel bars cannot be set. , the construction is difficult; in addition, the application of high-strength steel bars in the construction of ordinary houses is often limited by the crack width specified in the existing codes, and cannot be applied and promoted in a large area, especially the concrete slabs of the building (roof) panels. It is necessary to increase the amount of ordinary steel bars and the thickness of the concrete protective layer to solve the problem of crack developm...
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Inventor 姚圣法吴海洋
Owner TIANSHUN GROUP