High-ductility seismic insulation rubber support fireproof protection structure and construction process thereof

Abstract

The invention discloses a high-ductility seismic insulation rubber support fireproof protection structure and a construction process thereof. The periphery of a seismic insulation rubber support and the periphery of a flexible fireproof heat insulation material are further provided with a high-ductility fireproof structure layer, and the high-ductility fireproof structure layer comprises a connecting fixing plate and an extensible fireproof heat insulation layer; two fireproof composite layers are formed by the extensible fireproof heat insulation layer in the normal state to achieve fireproofprotection, when large deformation stretching displacement is generated during medium and violent earthquakes, the outer fireproof composite layer obliquely stretches relative to the inner fireproofcomposite layer, and due to the fact that the outer fireproof composite layer and the inner fireproof composite layer have an overlapping area, even if the stretching displacement is too large, the outer fireproof composite layer and the inner fireproof composite layer cannot fall off or be disconnected; adaptive extension is effectively carried out according to the deformation displacement degree, and the seismic insulation rubber support on the inner side is still wrapped in the whole process. Due to the improvement of the ductility, it is guaranteed that the fireproof composite layer on theouter side is not deformed, torn and damaged when the medium and violent earthquakes and large displacement offset occur, complete fireproof protection is continuously provided, and the fireproof effect under extreme conditions is achieved.

Description

technical field

[0001] The invention relates to the structural construction technology in the technical field of shockproof and shock absorption, in particular to the technical field of fire prevention for rubber bearings, in particular to a high-extensibility fireproof protection structure for shock-absorbing rubber bearings and its construction technology. Background technique

[0002] Building isolation rubber bearings are products that are alternately stacked and combined with multi-layer rubber and multi-layer steel plates or other materials. With the development of building isolation technology becoming more and more mature, more and more buildings use isolation rubber support. The seismic isolation bearing is generally arranged between the upper and lower piers of the building, as a part of the middle of the load-bearing member, when an earthquake occurs, it reduces the energy input by the earthquake into the superstructure and prevents the structure from collapsing. ...

Examples

Embodiment 1

[0029] Embodiment 1: A high ductility anti-vibration rubber bearing fire protection structure, such as figure 1As shown, it includes the vibration-isolation rubber bearing 2 installed between the upper and lower pier 1, the upper and lower ends of the vibration-isolation rubber bearing 2 are installed with flange plates 3, and the flange plate 3 is connected to the vibration-isolation rubber bearing 2 The outer layer is wrapped with a flexible fireproof and heat-insulating material 4, and a high-extensibility fireproof structure layer is installed on the periphery of the shock-absorbing rubber support 2 and the flexible fireproof and heat-insulation material. It consists of two parts, the upper connecting fixed plate 5 and the lower connecting fixed plate 6, which are respectively installed on the inner walls of the upper and lower buttresses, and extend along the inner wall surface to the vibration-isolation rubber bearing 2 in an attached manner to a flexible fire-proof and h...

Embodiment 2

[0033] Embodiment 2: on the basis of the scheme of embodiment 1, as Figure 8 , Figure 9 As shown, the structure between the inner and outer fireproof composite layers is improved, the inner and outer fireproof composite layers are connected in one piece, and the extension sections formed by folding or bending structures between the inner and outer fireproof composite layers are mutually connect.

[0034] The inner layer fireproof composite layer 7 and the outer layer fireproof composite layer 9 are integrated structures, and then install and fix the fireproof composite layer 8 and then install them synchronously: the inner layer fireproof composite layer 7 is pasted upward along the lower surface and the side surface of the fixed plate 6 at the lower part The flexible fire-proof and heat-insulating material 4 is installed until it touches the fixed fire-proof composite layer 8, then bent and extended until the bottom and then bent upwards to form the outermost outer fire-pr...

Embodiment 3

[0036] Example 3: On the basis of Example 1, the structure between the inner and outer fireproof composite layers is improved, the relative height of the outer fireproof composite layer 9 is greater than the height of the inner fireproof composite layer 7, and the outer fireproof composite layer The bottom of the layer 9 continues to bend upwards at least twice and then is distributed downwards, so that the lower half of the outer fireproof composite layer 9 is arranged in an S-shaped multi-layer fold. Such a structure makes the outer fireproof composite layer 9 During the large deformation process, the extension of the fireproof composite layer can be realized according to the direction and degree of deformation displacement, and tear damage can be avoided, while the inner fireproof composite layer 7 still provides complete protection for the shock-isolation rubber bearing 2 .

technical field

[0001] The invention relates to the structural construction technology in the technical field of shockproof and shock absorption, in particular to the technical field of fire prevention for rubber bearings, in particular to a high-extensibility fireproof protection structure for shock-absorbing rubber bearings and its construction technology. Background technique

[0002] Building isolation rubber bearings are products that are alternately stacked and combined with multi-layer rubber and multi-layer steel plates or other materials. With the development of building isolation technology becoming more and more mature, more and more buildings use isolation rubber support. The seismic isolation bearing is generally arranged between the upper and lower piers of the building, as a part of the middle of the load-bearing member, when an earthquake occurs, it reduces the energy input by the earthquake into the superstructure and prevents the structure from collapsing. ...

Examples

Embodiment 1

[0029] Embodiment 1: A high ductility anti-vibration rubber bearing fire protection structure, such as figure 1As shown, it includes the vibration-isolation rubber bearing 2 installed between the upper and lower pier 1, the upper and lower ends of the vibration-isolation rubber bearing 2 are installed with flange plates 3, and the flange plate 3 is connected to the vibration-isolation rubber bearing 2 The outer layer is wrapped with a flexible fireproof and heat-insulating material 4, and a high-extensibility fireproof structure layer is installed on the periphery of the shock-absorbing rubber support 2 and the flexible fireproof and heat-insulation material. It consists of two parts, the upper connecting fixed plate 5 and the lower connecting fixed plate 6, which are respectively installed on the inner walls of the upper and lower buttresses, and extend along the inner wall surface to the vibration-isolation rubber bearing 2 in an attached manner to a flexible fire-proof and h...

Embodiment 2

[0033] Embodiment 2: on the basis of the scheme of embodiment 1, as Figure 8 , Figure 9 As shown, the structure between the inner and outer fireproof composite layers is improved, the inner and outer fireproof composite layers are connected in one piece, and the extension sections formed by folding or bending structures between the inner and outer fireproof composite layers are mutually connect.

[0034] The inner layer fireproof composite layer 7 and the outer layer fireproof composite layer 9 are integrated structures, and then install and fix the fireproof composite layer 8 and then install them synchronously: the inner layer fireproof composite layer 7 is pasted upward along the lower surface and the side surface of the fixed plate 6 at the lower part The flexible fire-proof and heat-insulating material 4 is installed until it touches the fixed fire-proof composite layer 8, then bent and extended until the bottom and then bent upwards to form the outermost outer fire-pr...

Embodiment 3

[0036] Example 3: On the basis of Example 1, the structure between the inner and outer fireproof composite layers is improved, the relative height of the outer fireproof composite layer 9 is greater than the height of the inner fireproof composite layer 7, and the outer fireproof composite layer The bottom of the layer 9 continues to bend upwards at least twice and then is distributed downwards, so that the lower half of the outer fireproof composite layer 9 is arranged in an S-shaped multi-layer fold. Such a structure makes the outer fireproof composite layer 9 During the large deformation process, the extension of the fireproof composite layer can be realized according to the direction and degree of deformation displacement, and tear damage can be avoided, while the inner fireproof composite layer 7 still provides complete protection for the shock-isolation rubber bearing 2 .

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