tie rod guide

A technology of guides and tie rods, used in the erection/assembly of bridges, bridges, buildings, etc., can solve the problems that the embedded pipe cannot fully guarantee the proper position, reduce the anti-corrosion effect of the cable body, scratches, scratches, etc. Economic benefits, good social benefits, and the effect of increasing service life

Active Publication Date: 2015-12-30
LIUZHOU OVM MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Tied arch bridge is the most widely used bridge type, and tie rod is an important horizontal force-bearing component of arch bridge; as an important force-bearing component of bridge, the reliability, durability and adaptability of tie rod are related to the safety and service life of bridge structure However, the pre-embedded pipes at the abutment are generally relatively long, and errors are likely to occur during the construction and installation process. The installation of the pre-embedded pipes cannot completely guarantee the proper position. If the error is too large, the tie rod cable body will rub against the pre-embedded pipe opening. Or due to irregularities in the construction process, the outer PE sheath is scratched and rotted by the embedded pipe during the tensioning process of the tie rod, which reduces the anti-corrosion effect of the cable body (see figure 1 ), therefore, how to prevent the cable sheath from being scratched and scratched during the construction process to protect the tie rod cable body, thereby ensuring the safety of the tie rod arch bridge and improving its service life is an urgent problem to be solved at present

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A tie rod guide composed of two semicircular arc-shaped shells, the tie rod guide is composed of two semicircular arc-shaped shells 11 to form an integral circular shell (see figure 2 ), both ends of the two semicircular arc-shaped shells are connected into one body by bolts;

[0042] Open a notch 13 at the interface on one side of each shell, and open two through holes 131 on it, and open two screw holes at the position corresponding to the through hole on the notch 13 on the other shell that needs to be connected 14. Bolts pass through the through holes and screw holes on the two shells, so as to connect the two shells into one body (see Figure 3-1~Figure 3-2 ); Figure 3-2 Indicates that the two shells of the tie rod guide are connected by bolts, Figure 3-1 A schematic diagram showing the structure of a shell of the tie rod guide.

Embodiment 2

[0044] A tie rod guide composed of two semicircular arc-shaped casings, the tie rod guide is composed of two semicircular arc-shaped casings 11 to form an integral circular ring-shaped casing, and one side of the two semicircular arc-shaped casings passes through Hinge 23 is integrated (referring to Figure 5-2 ), the connection on the other side is through buckle 22 (see Figure 5-1 ), bolts (see Figure 6-1 ) or connecting blocks and bolts with bolt holes welded on the ring housing (see Figure 10-2 ) connected into one.

Embodiment 3

[0046] A tie rod guide composed of two semicircular arc-shaped shells, the tie rod guide is composed of two semicircular arc-shaped shells to form an integral circular shell (see figure 2), one side of the two semicircular arc-shaped shells is fastened by bolts (see Figure 6-1 ), the connection on the other side is through a buckle (see Figure 5-1 ) or a connection block with bolt holes welded on the ring shell and bolted together (see Figure 10-2 ).

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Abstract

A guide device of a tie rod is composed of m casings, wherein m casings are connected through connecting members to form an integral circular-ring-shaped casing or an n-sided annular casing, the inner wall of the integral circular-ring-shaped casing or the inner wall of the n-sided annular casing is a smooth trumpet-shaped taper hole inner wall, a round angle is chamfered at the edge of a taper hole, steps are lathed on outer portions of m casings, during usage, the guide device of the tie rod is sleeved on an embedded pipe orifice by the aid of steps, connecting members are hinges, buckles, bolts or connecting blocks and bolts which are welded on the annular casing and provided with bolt holes, m can be 1, 2, 3, 4, 6, 8 or 10, and n can be 2, 3, 4, 5, 6, 8, 10, 12......or 20. By the aid of the guide device of the tie rod, the problem that protective layers of tie rod cable bodies of tie rod arch bridges are scratched or damaged can be solved, and the guide device is novel in product structure, low in cost and convenient to construct and operate.

Description

technical field [0001] The invention relates to an accessory for prestressed construction, in particular to a tie rod guide. Background technique [0002] Tied arch bridge is the most widely used bridge type, and tie rod is an important horizontal force-bearing component of arch bridge; as an important force-bearing component of bridge, the reliability, durability and adaptability of tie rod are related to the safety and service life of bridge structure However, the pre-embedded pipes at the abutment are generally relatively long, and errors are likely to occur during the construction and installation process. The installation of the pre-embedded pipes cannot completely guarantee the proper position. If the error is too large, the tie rod cable body will rub against the pre-embedded pipe opening. Or due to irregularities in the construction process, the outer PE sheath is scratched and rotted by the embedded pipe during the tensioning process of the tie rod, which reduces th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01D21/00
Inventor 黄日金李文献齐琪黄芳玮陈建国
Owner LIUZHOU OVM MASCH CO LTD
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