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Connection method for reinforcing joints between pre-fabricated hollow slabs and horizontal beam by embedding steel reinforcements

A connection method and a technology of hollow slabs, which are applied in building reinforcements, structural elements, building components, etc., can solve unfavorable earthquake resistance and other problems, achieve improved collaborative deformation capabilities, reduce interstory displacement, and enhance tensile and shear bearing capacity Effect

Inactive Publication Date: 2014-05-14
CHINA UNIV OF MINING & TECH
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Problems solved by technology

Masonry school buildings are inherently unfavorable to earthquake resistance due to their own architectural layout requirements

Method used

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  • Connection method for reinforcing joints between pre-fabricated hollow slabs and horizontal beam by embedding steel reinforcements
  • Connection method for reinforcing joints between pre-fabricated hollow slabs and horizontal beam by embedding steel reinforcements

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Embodiment Construction

[0010] An embodiment of the present invention is further described below in conjunction with accompanying drawing:

[0011] In the connection method between embedded steel bars and reinforced prefabricated hollow slabs and bay beam nodes of the present invention, at first two prefabricated hollow slabs 2 opposite to each other on both sides of the bay beam 3 are symmetrically provided with grooves with a length L of 500mm on the front and rear sides. The steel bars 1 that connect the two prefabricated hollow slabs 2 horizontally are respectively arranged inside, and then the steel bars 1 that are obliquely intersected in an X shape are arranged in the middle between the two prefabricated hollow slabs 2, and then between the two prefabricated hollow slabs 2 Fine stone concrete is poured on the middle bay beam 3 in the room, and finally a layer of 20mm thick fine stone concrete is applied at the joint between the prefabricated hollow slab and the bay beam; the diameter of the ste...

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Abstract

The invention relates to a connection method for reinforcing joints between pre-fabricated hollow slabs and a horizontal beam by embedding steel reinforcements. The connection method comprises the steps of: symmetrically forming grooves with length of L on the front and rear sides of two opposite pre-fabricated hollow slabs on two sides of the horizontal beam, respectively arranging steel reinforcements horizontally connecting the two pre-fabricated hollow slabs in the symmetrically formed grooves, then arranging steel reinforcements which are aslant crossed in an X shape at the middle between the two pre-fabricated hollow slabs, then pouring fine gravel concrete on the horizontal beam at the middle between the two pre-fabricated hollow slabs, and finally applying a layer of fine gravel concrete with thickness of 20 mm at the joints between the pre-fabricated hollow slabs and the horizontal beam. According to the invention, by reinforcing the connecting joints, the integrality of the joints between the pre-fabricated hollow slabs and the horizontal beam is increased, the synergic deformability of each side force resisting component is increased and the interlayer displacement of the structure is reduced, thus the local or integral collapsing of a masonry structure is avoided as much as possible; and the structure is simple, convenient and effective, and can enhance the tensile and shear resisting bearing capacity of the joints so as to achieve the reinforcing purpose.

Description

technical field [0001] The invention relates to a connection method for embedding steel bars to reinforce the joints of prefabricated hollow slabs and bay beams, and is especially suitable for reinforcing the joints of prefabricated hollow slabs and bay beams in masonry structures. Background technique [0002] According to the analysis of the collapse mechanism of brick masonry school buildings in the Wenchuan earthquake and the analysis and summary of the seismic investigation results of existing masonry school buildings in Xuzhou City, it can be seen that the most fundamental reason for the collapse of masonry structures is attributed to the quality of the materials used. properties and the integrity of the structure itself. Masonry school buildings are inherently unfavorable to earthquake resistance due to their own architectural layout requirements. In the case of masonry structure materials that are brittle and difficult to change, the most effective way is to enhan...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04B1/41E04C5/02
Inventor 吕恒林周淑春许春华谢海舰吴元周
Owner CHINA UNIV OF MINING & TECH
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