CN-117328342-B - Anti-pulling pin device for bridge support

Abstract

The invention provides a pull-out resistant pin device for a bridge bearing, which comprises a device bottom plate, at least one first anchor bolt, at least one second anchor bolt, a first vertical plate and a second vertical plate, wherein the device bottom plate is arranged in an opening in a beam bottom plate of the bridge bearing, the first anchor bolt is used for penetrating through the beam bottom plate and being fixed in a main beam and a glue layer above the bridge bearing, the second anchor bolt is used for penetrating through the device bottom plate and being fixed in the main beam and the glue layer, the first vertical plate is vertically arranged below the beam bottom plate, and the second vertical plate is vertically arranged below the device bottom plate, and the first vertical plate and the second vertical plate are fixed together.

Inventors

• LI XIAODONG
• WANG YAN
• WU JIANBO
• LI JIAMING
• QIN YI
• WANG YUAN
• YAN DONG

Assignees

• 广州市北二环交通科技有限公司

Dates

Publication Date

20260505

Application Date

20230907

Claims (5)

1. 1. A anti-pulling pin device for bridge support, bridge support includes base, support main part, beam bottom plate and crab-bolt portion, and bridge support is located the below of girder, is provided with the wedge glue film between bridge support and girder, and bridge support passes through the crab-bolt portion and is in the same place with girder, wedge glue film are fixed, its characterized in that, anti-pulling pin device includes: The device bottom plate is arranged in an opening in a beam bottom plate of the bridge support, and the shape of the opening arranged on the beam bottom plate is matched with that of the device bottom plate so as to accommodate the device bottom plate; At least one first anchor bolt for passing through the beam bottom plate and being fixed in the main beam and wedge-shaped glue layer above the bridge support; at least one second anchor for securing within the main beam and wedge glue layer through the device floor; a first vertical plate vertically disposed below the beam bottom plate, and A second vertical plate vertically disposed below the device floor; wherein the second anchor bolt passes through the hole of the device bottom plate and is fixed at the device bottom plate; The first vertical plate has a first hole, the second vertical plate has a second hole, the first hole and the second hole are elongated holes, the first vertical plate and the second vertical plate are fixed together in the horizontal direction by means of bolts through the first hole and the second hole, and the second anchor bolt, the device bottom plate and the second vertical plate are vertically displaceable upward.
2. 2. The anti-pull pin apparatus of claim 1, wherein at least one spacer is sandwiched between the first vertical plate and the second vertical plate, the bolt passing through the at least one spacer.
3. 3. The anti-pull pin apparatus of claim 1, wherein the first vertical plate is welded below the beam floor and the second vertical plate is welded below the apparatus floor.
4. 4. Bridge abutment characterized in that it is applied at both sides with at least one anti-pull pin device according to any one of claims 1 to 3.
5. 5. A bridge is characterized in that, the bridge comprising the bridge bearing of claim 4.

Description

Anti-pulling pin device for bridge support Technical Field The invention relates to the field of bridges, in particular to a pull-out resistant pin device for bridge supports. Background Currently, large trucks travelling on highways have a weight of tens of tons or even hundreds of tons. Some large truck owners often overload the truck to increase the efficiency of transportation. When such a large truck passes a bridge, particularly a single pier bridge, excessive pressure is applied to one side of the deck because the vehicle travels to one side of the deck. This results in unbalanced forces on both sides of the deck, which results in a side-to-side overturning of the deck or the box girder under the deck, resulting in serious safety accidents. Existing bridge supports are typically positioned between the main beams and the piers. Since the existing bridge supports are often fixed to the girder by only one anchor bolt at both sides thereof, the girder cannot be very firmly fixed in the case that the girder of the bridge is inclined. Thus, the prior art solutions still have a high probability of bridge overturning. Disclosure of Invention In order to effectively solve the related technical problems, the invention provides a pin pulling-resistant device for a bridge support. In one aspect, a tamper resistant pin arrangement for a bridge abutment may include an arrangement floor disposed within an opening in a beam floor of the bridge abutment, at least one first anchor for securing within a main beam and a glue layer above the bridge abutment through the beam floor, at least one second anchor for securing within the main beam and the glue layer through the arrangement floor, a first vertical plate disposed vertically below the beam floor, and a second vertical plate disposed vertically below the arrangement floor, wherein the first and second vertical plates are secured together. The first vertical plate may have a first hole and the second vertical plate may have a second hole, and the first vertical plate and the second vertical plate may be fixed together by means of bolts through the first hole and the second hole. The first vertical plate and the second vertical plate may be fixed together in a horizontal direction by means of bolts through the first hole and the second hole. At least one of the first and second apertures may be an elongated aperture. At least one spacer may be sandwiched between the first vertical plate and the second vertical plate, the bolt passing through the at least one spacer. The first vertical plate may be welded under the beam floor and the second vertical plate may be welded under the device floor. Another aspect of the invention discloses a bridge abutment to which the anti-pull pin device according to an embodiment of the invention is applied at both sides. In a further aspect of the invention, a bridge is disclosed, comprising a bridge abutment according to an embodiment of the invention. The foregoing description is only an overview of the present invention, and is intended to be implemented in accordance with the teachings of the present invention in order that the same may be more clearly understood and to make the same and other objects, features and advantages of the present invention more readily apparent. Drawings The above, as well as additional purposes, features, and advantages of exemplary embodiments of the present invention will become readily apparent from the following detailed description when read in conjunction with the accompanying drawings. Several embodiments of the present invention are illustrated by way of example, and not by way of limitation, in the figures of the accompanying drawings and in which: in the drawings, the same or corresponding reference numerals indicate the same or corresponding parts. Fig. 1 shows a schematic cross-sectional view of a bridge bearing according to the prior art. Fig. 2 shows a schematic cross-sectional view of the anti-pull pin arrangement for a bridge beam according to the invention without bridge tilting. Fig. 3 shows a schematic cross-sectional view of the anti-pull pin arrangement for a bridge abutment according to the invention in the presence of a tilting of the bridge. Fig. 4 shows a schematic view of a vertical plate of the anti-pull pin arrangement according to the invention. Detailed Description The principles and spirit of the present invention will be described below with reference to several exemplary embodiments. It should be understood that these embodiments are presented merely to enable those skilled in the art to better understand and practice the invention and are not intended to limit the scope of the invention in any way. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. The terms "first," "second," and the like, are used for descriptive purposes only and are not to be con