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Laminated board with embedded type rib, laminated structural member with embedded type rib and prefabrication method of rib and laminated board

A technology of structural components and laminated panels, applied in building components, manufacturing tools, building structures, etc., can solve the problems of laitance, easy cracking, narrow rib bottom space, etc., and achieve easy cracking, tight combination, and fast speed Effect

Pending Publication Date: 2018-06-15
许仲群
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Now the prefabricated ribbed slab prefabricated components are produced by placing the prefabricated ribs on the formwork platform, and then pouring the bottom slab concrete, because the bottom slab is generally thin and the space at the bottom of the ribs is narrow, in order to leave space for concrete to be poured, the ribs are only in contact with the concrete on the surface of the bottom slab Contact, no embedding, so the flowing concrete has no pressure on the ribs, and cannot penetrate into the fine gaps at the bottom of the ribs; and the top surface of the bottom slab has laitance, and the quality of the concrete is not good; at the same time, special construction methods must be followed when pouring. Honeycomb is easy to be formed on the joint surface of rib and bottom plate, so the concrete joint surface of rib and bottom plate is easy to crack

Method used

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  • Laminated board with embedded type rib, laminated structural member with embedded type rib and prefabrication method of rib and laminated board
  • Laminated board with embedded type rib, laminated structural member with embedded type rib and prefabrication method of rib and laminated board
  • Laminated board with embedded type rib, laminated structural member with embedded type rib and prefabrication method of rib and laminated board

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Such as image 3 Shown, prefabricated figure 1 Ribs: Use concrete extrusion molding machine to invert the prefabricated ribs. The advantage is that no template is required, and ribs of any complex cross-section can be produced. The ribs can also be stretched to produce prestressed steel strands or steel bars. It can also be used in the pipeline position. Before the initial setting of the concrete, remove the concrete under the rib to form a hole 1, allowing the rib bottom steel bar 2 to penetrate to strengthen the rigidity of the hole. In this example, the dumbbell-shaped cross-section rib 3 is selected, which has a large rigidity, a large joint surface with the bottom plate and a light weight. The upper part of the rib 3 is the flange 4 with the top surface horizontal. The hook can grasp the flange 4 for lifting; Two symmetrical inclined surfaces 5 form an obtuse angle and symmetrically bulge downwards 6, so that the concrete and air of the bottom plate 14 are easily squ...

Embodiment 2

[0034] Such as figure 1 , 2 After the ribs of Example 1 are cured, the clip-shaped steel pad nails 10 that are matched with the lower side and bottom surface of the rib 3 are glued to the lower part of the rib 3 with planting glue or grout to support the rib 3 and connect the rib 3 and The bottom plate 14 provides tensile, shear and compression resistance, and prevents the ribs from cracking and disengaging at the concrete joint surface of the bottom plate; if the pad nail 10 only serves as the supporting rib 3, then the rib 3 can be clamped; the pad nail is generally along the rib, etc. The distance arrangement can also be arranged at different distances according to the force. The lifting point is best located at the pad nail. The bottom of the ribs is moistened, turn over and set aside.

[0035] Install the bottom plate side mold 11, the bottom plate steel bar 12 perpendicular to the ribs and the bottom plate steel bar 13 parallel to the ribs on the mold table; the steel bar 1...

Embodiment 3

[0038] Such as Figure 4 It is also possible to use the limiting device 16 instead of the pad nail 10 to support the rib 3. The powerful magnet pressing block 17 presses the limiting device 16 to maintain balance and stability without shifting; pour the bottom plate 14 concrete; the rib 3 is placed above the limiting device, and the wedge 18 is placed in the gap between them, so that the rib 3 can only move downward ; Using the method of Example 2 to squeeze the rib 3 into the concrete of the bottom plate, so that the bottom surface of the flange 4 is supported on the supporting plate 161 of the limit device 16 to reach the design elevation; after the initial setting, remove the strong magnetic pressure block 17 and pull out The wedge 18 and the limiting device 16 rotate around its rounded corner 162 to separate it from the rib 3, and then translate it back and remove it; after the maintenance is completed, it becomes figure 1 The product does not look like a pad nail 10.

[0039...

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PUM

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Abstract

The invention provides a laminated board with an embedded type rib, a laminated structural member with the embedded type rib and prefabrication method of the rib and the laminated board. The inventionprovides solution in 4 aspects: 1, the laminated board with the embedded type rib is a prefabricated member and a prefabricated rib is embedded into bottom plate concrete. Therefore, the shear stressis much smaller than that of a joint face between a rib which is not embedded and the bottom plate concrete and the problem that the joint face is easy to crack is solved; 2, the laminated structuralmember with the embedded type rib adopts the prefabricated member of the laminated board as a template of the laminated structural member; a cast-in-place layer or a cast-in-place body is poured; after solidification, the prefabricated member of the laminated board becomes one part of the laminated structural member. The concrete rib is arranged and has good rigidity so that the laminated board can be placed in any direction to be used as the template; 3, the prefabrication method of the rib adopts a concrete extrusion molding machine to realize long-line production; the template is not needed and various ribs with complicated sections are rapidly produced; 4, the prefabrication method of the laminated board with the embedded type rib comprises the following steps: the bottom plate concrete is poured firstly and then putting the rib; extruding into the bottom plate concrete to reach a designed elevation. The rib and the bottom plate concrete are combined tightly.

Description

Technical field [0001] The invention relates to the field of reinforced concrete assembly monolithic buildings in the construction industry, in particular to a prefabricated component and a composite structural component of a laminated board with prefabricated ribs. Background technique [0002] Nowadays, the production of ribbed composite slab precast components uses prefabricated ribs to be placed on the mold table, and then the bottom plate concrete is poured. Because the bottom plate is generally thin and the rib bottom space is narrow, in order to leave a space for concrete pouring, the ribs are only with the surface of the bottom plate. Contact, no embedding, so the flowing concrete has no pressure on the ribs and cannot penetrate into the fine voids at the bottom of the ribs; and the top surface concrete of the bottom plate has laitance, and the quality of the concrete is not good; at the same time, it must be poured in accordance with the unique construction method and sli...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04C2/38B28B23/02
CPCE04C2/382B28B23/02
Inventor 许仲群
Owner 许仲群