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Wood-plastic composite board/rubber sheet laminated seismic isolation bearing for low-rise buildings in villages and towns and its manufacturing method

A technology of seismic isolation bearing and manufacturing method, which is applied in the directions of buildings, building components, building structures, etc., can solve the problems of difficult popularization and application of steel plate/rubber laminated seismic isolation bearings, low seismic design standards, and complicated manufacturing process. , to achieve good application prospects, avoid poor bonding, and the effect of simple production process

Inactive Publication Date: 2017-01-25
GUANGZHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the steel plate / rubber laminated seismic isolation bearing has excellent performance, its manufacturing process is complicated, the cost is high, and the weight is heavy, so it is generally used in the field of high-rise building isolation
The proportion of 1-5 storey low-rise buildings in villages and towns in my country is very large, and it is difficult to popularize and apply steel plate / rubber laminated seismic isolation bearings. At the same time, the seismic design standards of domestic villages and towns buildings are generally low. Property damage, so there is an urgent need for new shock-isolating bearing products with lower development costs, lighter weight, and easy installation

Method used

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  • Wood-plastic composite board/rubber sheet laminated seismic isolation bearing for low-rise buildings in villages and towns and its manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] like figure 1 As shown, the wood-plastic composite board / rubber sheet laminated seismic isolation bearing for low-rise buildings in villages and towns of the present invention comprises a bearing body 1, and the bearing body includes a rubber sheet 3 and a wood-plastic composite board 2, and the rubber sheet 3 and the The wood-plastic composite boards 2 are alternately stacked, and the two outer layers of the support body 1 are rubber sheets 3 , and the support body 1 includes 5-10 layers of wood-plastic composite boards 2 . Preferably, the low-rise building is a 1-5 storey building. Preferably, the thickness of the wood-plastic composite board 2 is 2-8 mm, and the thickness of the rubber sheet 3 is 2-8 mm. Further preferably, the horizontal section of the support body 1 is rectangular or circular.

Embodiment 2

[0037] The manufacturing method of the wood-plastic composite board / rubber sheet laminated seismic isolation bearing for low-rise buildings in villages and towns of the present invention comprises the following steps:

[0038] S1. Production of wood-plastic composite panels:

[0039] The wood flour with a particle size of 40 meshes was placed in a high-speed mixer, vacuum-dried at 90°C for 12 hours, and set aside for use;

[0040] S101, put 65 parts by mass of isotactic polypropylene, 25 parts by mass of wood powder and 5 parts by mass of acicular wollastonite with a particle size of 40 μm into a high-speed mixer, after dispersing at 200 r / min for 1 h, the temperature is raised to 105 ℃, then add 2 parts by mass of maleic anhydride grafted polypropylene and 0.5 part by mass of A-171 silane coupling agent, disperse at 300 r / min for 3 minutes, put it into a cold mixing pot to cool, and wait until the temperature drops to 50 ℃ When the material is discharged, the initial mixtu...

Embodiment 3

[0048] In the present embodiment, the manufacturing method of the wood-plastic composite board / rubber sheet laminated seismic isolation bearing for low-rise buildings in villages and towns includes the following steps:

[0049] S1. Production of wood-plastic composite panels:

[0050] The wood flour with a particle size of 80 meshes was placed in a high-speed mixer, vacuum-dried at 95°C for 12 hours, and set aside for use;

[0051] S101, put 60 parts by mass of poly-1-butene, 30 parts by mass of wood powder and 15 parts by mass of talc powder with a particle size of 20 μm into a high-speed mixer, disperse at 260r / min rotating speed for 2h, then heat up to 110°C, Then add 4 parts by mass of maleic anhydride grafted polypropylene and 0.9 parts by mass of A-151 silane coupling agent, disperse at 350r / min for 5min, put it into a cold mixing pot to cool, and put it when the temperature drops to 50°C. material to obtain the initial mixture;

[0052] S102, placing the initial mix...

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Abstract

The invention discloses a wood-plastic composite board / rubber sheet laminated seismic isolation bearing for low-rise buildings in villages and towns and a preparation method thereof. The support includes a support body, the support body includes a rubber sheet and a wood-plastic composite board, the rubber sheet and the wood-plastic composite board are alternately stacked, and the two outer layers of the support body are rubber sheets, and the The main body of the support includes 5-10 layers of wood-plastic composite boards. The manufacturing method of the support comprises the following steps: S1, each raw material is initially mixed / extruded / vulcanized to make a wood-plastic composite board; S2, after the rubber sheet and the wood-plastic composite board are alternately smeared with adhesive The main body of the bearing is formed by superimposing, pressurizing and bonding at room temperature. The invention replaces the steel plate with a wood-plastic composite plate with a low density, which is lighter than the laminated steel plate / rubber isolation bearing of the same specification, and is especially beneficial for long-distance transportation and installation in villages and towns such as mountainous areas with inconvenient traffic.

Description

technical field [0001] The invention relates to the technical field of seismic isolation, in particular to a wood-plastic composite board / rubber sheet laminated seismic isolation bearing, which can be used as a seismic isolation structure for low-rise buildings in villages and towns; the invention also relates to this A method of manufacturing a laminated seismic isolation bearing. Background technique [0002] At present, the relatively mature seismic isolation bearing in practical application is the steel plate / rubber laminated vibration isolation bearing. Put it into the mold for high temperature setting and vulcanization (Zhao Ruishi. The vulcanization process and thermal analysis of the laminated rubber seat for vibration isolation [J]. World Rubber Industry, 2003, 2: 36-41). Although the steel plate / rubber laminated seismic isolation bearing has excellent performance, its manufacturing process is complex, the cost is high, and the weight is heavy, and it is generally ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04B1/36E04B1/98C08L23/06C08L23/12C08L23/20C08L97/02
Inventor 谭平徐凯柯刚李广洲金建敏龙耀球周福霖
Owner GUANGZHOU UNIVERSITY
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