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Connection nodes of prefabricated sandwich panels

A technology for connecting nodes and external wall panels, which is applied in the direction of architecture and building construction, can solve the problems of poor seismic performance, large contribution of stiffness, complex construction, etc., to improve structural strength and seismic performance, enhance connection strength, and enhance The effect of tensile strength

Active Publication Date: 2016-07-06
HUNAN YUANDA ENG DESIGN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a prefabricated sandwich panel and composite beam connection structure that contributes greatly to the rigidity of the main building structure, poor seismic performance, and complicated construction in the prior art. The connection node of the sandwich exterior wall panel simplifies the construction operation and reduces the stiffness contribution of the prefabricated exterior wall panel to the main building structure, thereby improving the structural strength and seismic performance of the main building structure

Method used

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  • Connection nodes of prefabricated sandwich panels
  • Connection nodes of prefabricated sandwich panels
  • Connection nodes of prefabricated sandwich panels

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Embodiment one sees figure 1 , the connection node of the prefabricated sandwich exterior wall panels in this embodiment is hoisted and assembled by the prefabricated sandwich exterior wall panels 1 and composite beams 2 at the construction site. The prefabricated sandwich exterior wall panel 1 includes an outer leaf plate 11 , an insulating layer 12 and an inner leaf plate 13 . A plurality of shear key slots 4 are provided at the connection between the inner leaf plate 13 and the laminated beam 2 , and transverse steel bars 14 are pre-embedded in the inner leaf plate 13 below the shear key slots 4 along the horizontal direction. The upper edge of the shear keyway 4 is lower than the upper edge of the thermal insulation layer 12 . exist figure 1 In the horizontal direction shown, the thickness of the shear keyway 4 is slightly smaller than the thickness of the inner blade 13, and the opening surface of the shear keyway 4 faces the side of the composite beam, and the s...

Embodiment 2

[0022] Embodiment two see figure 2 , the connection nodes of the prefabricated sandwich exterior wall panels in this embodiment are formed by hoisting and assembling the prefabricated sandwich exterior wall panels 1, laminated beams 2 and laminated floor slabs 3 at the construction site. The laminated floor slab includes a prefabricated layer 31 and a cast-in-place layer 32, and the prefabricated layer 31 is erected above the laminated beam prefabricated layer 21 on the side opposite to the prefabricated sandwich exterior wall panel. In this preferred embodiment, the prefabricated sandwich exterior wall panel 1 and the composite beam 2 are connected through the shear keyway 4 provided on the inner leaf plate 13 and the shear key on the cast-in-place layer 22 of the composite beam, which is the same as in the first embodiment . Different from Embodiment 1, an additional steel bar for the shear key is also provided in the shear key groove 4 in this embodiment, the additional s...

Embodiment 3

[0023] Embodiment three see Figure 3 to Figure 5 , the connection nodes of the prefabricated sandwich exterior wall panels in this embodiment are formed by hoisting and assembling the prefabricated sandwich exterior wall panels 1, laminated beams 2 and laminated floor slabs 3 at the construction site.

[0024] image 3 The prefabricated sandwich exterior wall panel 1 includes an outer leaf plate 11, an insulating layer 12 and an inner leaf plate 13, and the outer leaf plate 11, the insulating layer 12 and the inner leaf plate 13 are connected together by a flame-retardant connector 15; the inner leaf plate 13 A plurality of shear key slots 4 are arranged at the connection between the upper part and the composite beam 2, and transverse steel bars 14 are pre-embedded in the inner leaf plate 13 below the shear key slots 4 along the horizontal direction. The upper end of the inner blade 13 is longer than the upper end of the outer blade 11 and the insulation board 12, and the lo...

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PUM

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Abstract

A connection node of a prefabricated sandwich exterior wall panel, comprising a prefabricated sandwich exterior wall panel and a composite beam, the prefabricated sandwich exterior wall panel is connected to the shear force key provided by the cast-in-place layer of the composite beam through the shear keyway provided on the inner leaf plate Connection; the bottom of the shear keyway is provided with a connecting cable, one end of which is pre-embedded in the prefabricated sandwich exterior wall panel, and the other end passes through the bottom of the shear keyway and is fixed to the cast-in-place layer of the composite beam. The shear key is provided with an additional steel bar for the shear key, one end of which extends into the shear key groove and the other end extends to the lower part of the reinforcement of the composite beam frame, so as to improve the connection strength between the outer wall panel and the composite beam. The prefabricated sandwich exterior wall panels of the present invention are connected to the laminated beams at multiple points to form a connection structure with the upper part suspended and the lower part flexibly limited, which reduces the contribution of the prefabricated sandwich exterior wall to the structural strength of the main body of the building and improves the anti-seismic performance. It also simplifies the processing of steel bars and production molds during the production of prefabricated sandwich exterior wall panels to improve production efficiency.

Description

technical field [0001] The invention relates to the technical field of fixed buildings, in particular to a connection node of a prefabricated sandwich exterior wall panel. Background technique [0002] The connection nodes of the prefabricated sandwich exterior wall panels in the existing prefabricated buildings are as follows: a row of outstretched anchoring steel bars is pre-embedded at the joint between the inner leaf plate of the prefabricated sandwich exterior wall panels and the composite beam, and the outreaching anchoring steel bars are "L-shaped". One end is pre-buried in the inner leaf plate, and the other end protrudes from the top of the inner leaf plate and is located in the plane of the prefabricated sandwich outer wall panel. During construction, the protruding end of the anchoring steel bar is bent and connected to the cast-in-place steel bar of the composite beam, and the extended anchoring steel bar is anchored into the composite beam and the laminated floo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04B1/38
Inventor 张剑
Owner HUNAN YUANDA ENG DESIGN CO LTD