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Fiber-reinforced composite material foundation bolt

A technology of reinforced composite materials and anchor bolts, which is applied in the manufacture of tools, glass manufacturing equipment, construction, etc., can solve the problems of insufficient mechanical properties, inability to fully adapt to the pull-out resistance, corrosion resistance and fatigue damage resistance of anchor bolts , to achieve the effect of improving pull-out resistance, excellent acid, alkali and salt resistance, and reducing moisture absorption rate

Inactive Publication Date: 2015-01-28
STATE GRID CORP OF CHINA +5
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0003] Considering the material performance and economical requirements comprehensively, basalt fiber composite material has become the first choice for composite anchor bolts due to its good comprehensive performance and economical efficiency. However, pure basalt fiber anchor bolts have insufficient mechanical properties and cannot be completely It is necessary to further improve the tensile bearing capacity and fatigue damage resistance of fiber reinforced composite (FRP) anchor bolts to adapt to the failure modes of anchor bolts such as pullout resistance, corrosion resistance, and fatigue damage resistance during use.

Method used

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Embodiment Construction

[0015] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:

[0016] see figure 1 , a fiber-reinforced composite material anchor bolt has an inner core 1 and an outer layer 2, the material of the inner core 1 is aramid fiber, and the material of the outer layer 2 is basalt fiber, which is made through one-time curing molding; the inner core 1 The volume percentage content of fiber yarn is 65%; the volume percentage content of outer layer fiber yarn is 75%.

[0017] see figure 2 , the preparation method of the above-mentioned fiber-reinforced composite anchor bolts: aramid fibers 4 are placed on the inner creel, and basalt fibers 3 are placed on the outer creel. The model 6 then passes through the high-temperature catalytic curing chamber 7, and is pulled out by a tractor after molding.

[0018] The basalt fiber itself has super corrosion resistance. At the same time, the higher yarn content of the outer layer 2 inc...

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Abstract

The invention discloses a fiber-reinforced composite material foundation bolt. The fiber-reinforced composite material foundation bolt comprises an inner core structure and an outer-layer structure, wherein the inner core material is an aramid fiber-reinforced composite material; the outer-layer material is a basalt fiber-reinforced composite material; and a diameter ratio of the inner core to the outer layer is 3 to 4. The fiber-reinforced composite material foundation bolt disclosed by the invention has relatively strong corrosion resistance and fatigue resistance under low-stress cycles such as wind load, and is long in service life.

Description

Technical field [0001] The invention involves the technology field of infrastructure construction materials such as civil transportation, electricity, etc., specifically a fiber -enhanced composite foot bolt. Background technique [0002] As an important tool for the connection between the building foundation and the upper structure, the corrosion during use has always restricted its bottleneck problem in the special environment, such as acidic and alkaline chemical plants, and high -salt areas.In response to the limitations of steel ground bolts in the above environment, China's patent application CN103435324A disclosed a ground foot bolt made of basalt fiber.The material ground bolts replace the ordinary steel floor bolts. The material of the foot bolts of the ground is basalt fiber. The raw materials of the basalt fiber include basalt ore, limestone and coke.-20%, 15-30%of coke, the quality ratio is preferably 70%of Xuanwu rock ore, 10%limestone, and 20%coke.The foot bolts of ...

Claims

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Application Information

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IPC IPC(8): C04B30/02C03B37/00E04B1/38
Inventor 孙建龙安增军薛涛汪昕吴智深朱中国金云东
Owner STATE GRID CORP OF CHINA
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