Unlock instant, AI-driven research and patent intelligence for your innovation.

Large-diameter foundation bolt used for installing power transmission tower

A technology of anchor bolts and transmission towers, which is applied to the frame of the engine, supporting machines, mechanical equipment, etc., can solve the problems of insufficient anchoring strength and reliability of the upper part of the bolts, insufficient anchoring strength of the anchor bolts, and the situation is not optimistic. It achieves the effects of convenient construction and quality control, improved anchorage performance, and high anchorage holding force

Inactive Publication Date: 2015-02-25
STATE GRID CORP OF CHINA +5
View PDF0 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, anchor bolts are an important tool for connecting the basic structure with the upper structure and equipment. At present, the commonly used anchor bolts are mostly made of steel, and because the transmission towers are mostly in the field and other complex environments, there are corrosion of steel bars in the concrete, bolts, etc. Insufficient anchoring strength and anchoring reliability of the upper part, low durability, etc.
Because the anchor bolts are buried in the foundation, the above situation occurs inside, and it is difficult for people to see the internal anchoring corrosion with the naked eye, so the corrosion of the anchor bolts and the insufficient anchoring strength often do not attract people's attention
However, anchor bolts are usually embedded in concrete components and bear the dual effects of medium and environment, and the situation is not optimistic.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Large-diameter foundation bolt used for installing power transmission tower
  • Large-diameter foundation bolt used for installing power transmission tower
  • Large-diameter foundation bolt used for installing power transmission tower

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] see Figure 1-Figure 3 , the large-diameter anchor bolt used for installing the transmission tower of the present invention is made of basalt fiber reinforced composite material, including the lower part 1 anchored and embedded in the concrete foundation 8 and the upper part 2 of the exposed concrete foundation 8, and the anchor bolt The bolt shank of the lower part 1 is provided with rib stripes 3 , and the bolt shank of the upper part 2 of the anchor bolt is provided with threads for connecting nuts 7 . The diameter D of the anchor bolt is 40mm, the length L of the bolt shank of the lower part 1 of the anchor bolt is 1.1m, the spacing l of the rib stripes 3 on the bolt shank of the lower part 1 of the anchor bolt is 20mm, and the rib height h is 1.6mm; A 50mm long reinforcing sleeve 4 is threadedly connected to the bottom end of the bolt rod of the lower part 1 of the anchor bolt; The lower part of the bolt 1 is placed in the foundation concrete. After the concrete o...

Embodiment 2

[0021] see Figure 1-Figure 2 , the large-diameter anchor bolt for installing the transmission tower of the present invention is made of aramid fiber reinforced composite material, including the lower part 1 embedded in the concrete foundation 8 and the upper part 2 of the exposed concrete foundation 8, and the foundation The bolt shank of the lower part 1 of the bolt is provided with rib stripes 3 , and the bolt shank of the upper part 2 of the anchor bolt is provided with threads for connecting the nut 7 . The diameter D of the anchor bolt is 100mm, the length L of the bolt shank of the lower part 1 of the anchor bolt is 2.5m, the distance l of the rib stripes 3 on the bolt shank of the lower part 1 of the anchor bolt is 36mm, and the rib height h is 2.2mm; When using this anchor bolt to install the transmission tower, before pouring the foundation concrete of the transmission tower tower, place the lower part 1 of the anchor bolt in the foundation concrete at the design pos...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Diameteraaaaaaaaaa
Diameteraaaaaaaaaa
Diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses a large-diameter foundation bolt used for installing a power transmission tower. The large-diameter foundation bolt is made of fiber reinforced composite materials and comprises a lower portion buried in a concrete foundation and an upper portion exposed out of the concrete foundation. Rib strips are arranged on the part, at the lower portion of the foundation bolt, of a bolt rod and threads for connecting a nut is arranged on the part, at the upper portion of the foundation bolt, of the bolt rod. The foundation bolt made of the fiber reinforced composite materials (FRP) replaces a metal product, meanwhile, the reasonable rib stripe mode is designed to solve the problem that the durability of a structure is insufficient due to the fact that the structure is corroded in complex environment is solved, and anchoring force and bond strength are high.

Description

technical field [0001] The invention relates to the technical field of materials used in infrastructure construction such as civil engineering, transportation, and electric power, and specifically relates to a large-diameter anchor bolt for installing a power transmission tower. Background technique [0002] At present, anchor bolts are an important tool for connecting the basic structure with the upper structure and equipment. At present, the commonly used anchor bolts are mostly made of steel, and because the transmission towers are mostly in the field and other complex environments, there are corrosion of steel bars in the concrete, bolts, etc. Insufficient anchoring strength and anchoring reliability of the upper part, low durability, etc. Because the anchor bolts are buried in the foundation, the above situation occurs inside, and it is difficult for people to see the internal anchorage corrosion with the naked eye. Therefore, the corrosion of anchor bolts and insuffici...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): F16M7/00
Inventor 孙建龙王庭华汪昕吴智深朱中国范家俊金云东
Owner STATE GRID CORP OF CHINA