CN210766394U

CN210766394U - Bridge beam supports bottom installation protective structure

Info

Publication number: CN210766394U
Application number: CN201920679021.9U
Authority: CN
Inventors: 苑杰; 陈璐; 叶松波
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-05-13
Filing date: 2019-05-13
Publication date: 2020-06-16
Anticipated expiration: 2029-05-13

Abstract

The utility model discloses a bridge beam supports bottom installation protective structure, including the pier body, the top of pier body is the support body, the lower extreme of support body is provided with the inserted bar, the inserted bar is pegged graft through the slot that sets up on the support body, be equipped with the slip casting layer in the slot, the lateral wall of support body encloses and is equipped with the protection bounding wall, the cavity internal face of protection bounding wall is provided with corrosion-resistant layer, the internal face and the contact of support body lateral wall on corrosion-resistant layer compress tightly, the lower terminal surface of protection bounding wall is provided with sealed the pad, be provided with the through-hole on the protection bounding wall, it has the bolt to peg graft in the through-hole, the upper end of pier. The poured epoxy mortar is prevented from flowing to the outer side wall of the pier, the corrosion resistance to the overflowing epoxy mortar is improved, the looseness prevention performance of the bolt is effectively improved, and the installation stability of the protective enclosing plate is guaranteed.

Description

Bridge beam supports bottom installation protective structure

Technical Field

The utility model relates to a bridge construction technical field specifically is a bridge beam supports bottom installation protective structure.

Background

The highway bridge is specially built for the passing of vehicles and pedestrians on a highway, and generally comprises a bridge pavement, a support and piers, wherein the bottom ends of the piers are embedded in a soil foundation, the upper ends of the piers are installed with the bottom of the support together, the upper end of the support is erected and connected with the bridge pavement, generally, four preset slots are arranged at the upper ends of the piers, then epoxy mortar is poured into the preset slots, then, four matched inserting rods are also preset at the bottom of the support, the support is suspended by a crane and the four inserting rods at the lower end are respectively inserted into the four preset slots on the piers, after the epoxy mortar is solidified, the four inserting rods at the bottom of the support and the preset slots are strongly bonded together, however, when the epoxy mortar is poured, the preset slots are required to be filled with the epoxy mortar for ensuring the bonding property, so that the liquid epoxy mortar can overflow out of the openings at the upper ends of the preset slots and flow onto the outer side walls of, the aesthetic property of the pier is affected, and the liquid epoxy mortar has certain corrosiveness, which may cause the corrosion to the skin of an external operator.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a bridge beam supports bottom installation protective structure to solve the lower problem of the filled epoxy mortar that prior art exists and flow to the lateral wall of pier on and to spill epoxy mortar's corrosion resistance.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a bridge beam supports bottom installation protective structure, includes the pier body, the top of pier body is the support body, the lower extreme of support body is provided with the inserted bar, the inserted bar is pegged graft through the slot that sets up on the support body, be equipped with the slip casting layer in the slot, the lateral wall of support body encloses and is equipped with the protection bounding wall, the cavity internal face of protection bounding wall is provided with the corrosion-resistant layer, and the internal face and the contact of support body lateral wall on corrosion-resistant layer compress tightly, the lower terminal surface of protection bounding wall is provided with sealed the pad, be provided with the through-hole on the protection bounding wall, it has the bolt to peg graft in the through-hole, the upper end of pier body is.

Preferably, the number of the internal thread cylinders is four, and the internal thread cylinders are uniformly distributed on the pier body by taking the vertical and horizontal central axes of the support body as the center.

Preferably, the protection enclosing plate is provided with a countersunk groove, and the countersunk groove is communicated with the through hole.

Preferably, an extrusion pad is arranged in the inner wall of the countersunk groove, and the lower end of the bolt is provided with a conical head.

Compared with the prior art, the beneficial effects of the utility model are that: through the protection bounding wall structure that is equipped with corrosion-resistant layer and sealed pad, not only effectively avoided on the lateral wall that the epoxy mortar that fills flows the pier, guaranteed the aesthetic property of pier, effectively improved the corrosion resistance to overflowing epoxy mortar moreover, in addition, through setting up the extrusion pad structure at the countersunk head groove, can effectively improve the locking of bolt, and then effectively guaranteed the installation stability of protection bounding wall.

Drawings

FIG. 1 is a sectional view of the whole structure of the present invention;

FIG. 2 is a top view distribution diagram of the bolts for mounting the protective enclosure of the present invention;

fig. 3 is a partially enlarged cross-sectional view of a portion a in fig. 1 according to the present invention.

In the figure: the pier comprises a pier body 1, a support body 2, an inserted rod 3, a slot 4, a grouting layer 41, a protective coaming 5, a corrosion-resistant layer 51, a sealing gasket 52, an internal thread cylinder 6, a bolt 7, a conical head 71, a through hole 8, a countersunk groove 9 and an extrusion pad 91.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, the present invention provides a technical solution: a bridge support bottom installation protection structure comprises a bridge pier body 1, the bridge pier body 1 and a support body 2 are components for bridge construction, the outer wall surfaces of the bridge pier body 1 and the support body 2 have corrosion resistance, the support body 2 is arranged above the bridge pier body 1, an inserted rod 3 is arranged at the lower end of the support body 2, the inserted rod 3 is inserted and connected through an insertion slot 4 arranged on the support body 2, a grouting layer 41 is arranged in the insertion slot 4, the grouting layer 41 is epoxy mortar, the epoxy mortar is a liquid mixture formed by adding fine quartz sand into epoxy resin coating and manually blending, a high-strength and high-bonding-force solidification body is formed after solidification, a protection coaming 5 is arranged around the outer side wall of the support body 2, the protection coaming 5 is integrally welded by stainless steel plates, the interior is hollow and penetrates up and down, a corrosion resistant layer 51 is arranged on the hollow inner wall surface of the protection coaming 5, and the inner wall surface of the corrosion resistant, the lower end face of the protective enclosing plate 5 is provided with a sealing gasket 52, the sealing gasket 52 is an elastic EVA rubber gasket, the protective enclosing plate 5 is provided with a through hole 8, a bolt 7 is inserted in the through hole 8, the upper end of the pier body 1 is provided with an internal thread cylinder 6, a preset cylindrical groove is formed in the pier body 1, strong bonding structural adhesive is coated in the groove, then the cylindrical steel internal thread cylinder 6 is inserted into the preset cylindrical groove and bonded into a whole, referring to figure 2, the number of the internal thread cylinders 6 is four, the internal thread cylinders are uniformly distributed on the pier body 1 by taking the vertical and horizontal central axes of the support body 2 as the center, referring to figure 1, the internal thread cylinders 6 are in threaded connection with the bolt 7, the protective enclosing plate 5 is firstly placed on the upper end face of the pier body 1, the four through holes 8 on the protective enclosing plate are aligned with the four preset internal thread cylinders 6, then the four bolts, through the screw holes in the internal thread cylinder 6, the four bolts 7 can rotate and move downwards to be locked, at the moment, the four slots 4 are enclosed in the hollow of the internal thread cylinder by the protective enclosing plate 5, the sealing gasket 52 is extruded and deformed, the sealing effect between the lower end surface of the protective enclosing plate 5 and the upper end surface of the pier body 1 can be ensured, at the moment, epoxy mortar can be poured into the slots 4, the liquid epoxy mortar which overflows after the slots 4 are filled flows out from the upper end opening of the slots 4, the flowing epoxy mortar can be blocked by the protective enclosing plate 5, the poured epoxy mortar is effectively prevented from flowing onto the outer side wall of the pier body 1, the corrosion-resistant layer 51 arranged on the inner side wall surface of the protective enclosing plate 5 can be contacted with the flowing epoxy mortar, the whole corrosion-resistant layer 51 is made of silicon rubber, and the outer surface of the inner side wall is sprayed with a nano-silica coating, the nano silicon dioxide coating is an inorganic chemical material, commonly known as white carbon black, the coating and silicon rubber material have excellent corrosion resistance, the corrosion resistance to the overflowed epoxy mortar is effectively improved, when the installation of the protective coaming 5 is completed, and after the epoxy mortar is poured, the support body 2 can be lifted by a crane at the moment, the support body 1 is moved to the upper end installation position, then the support body 2 is slowly moved downwards and inserted into the inner hollow of the protective coaming 5, meanwhile, the lower end inserting rod 3 is downwards inserted into the inserting groove 4, the bottom end face of the support body 2 is completely placed behind the upper end face of the support body 1, after the epoxy mortar is condensed, the bottom end of the support body 2 is bonded with the support body 1 through the condensation force of the bottom end, and the installation is completed.

Referring to fig. 1 and 3, a countersunk groove 9 is formed in the protective fence 5, the countersunk groove 9 is communicated with the through hole 8, an extrusion pad 91 is arranged in the inner wall of the countersunk groove 9, the lower end of the bolt 7 is provided with a conical head 71, the inclination of the conical head 71 can ensure that the bolt 7 can be smoothly inserted into each hole, when the bolt 7 rotates clockwise and moves downwards for locking, the nut at the upper end can sink into the countersunk groove 9, at the moment, the nut can give downward extrusion force to the extrusion pad 91 preset on the inner wall of the countersunk groove 9, the extrusion pad 91 is a high-elasticity foamed PU pad layer, and can deform and form upward resilience after being extruded downwards, and the upward resilience in the longitudinal direction acts on the bolt 7, so that the anti-loosening performance of the bolt 7 can be improved, and the installation stability of the protective fence 5 is effectively ensured.

The utility model discloses when concrete implementation: firstly, the protective coaming 5 is placed on the upper end face of the pier body 1, the four through holes 8 on the protective coaming are aligned with the four preset internal thread cylinders 6, then the four bolts 7 are taken out to respectively penetrate into the through holes 8 and rotate clockwise, the four bolts 7 can rotate and move downwards to be locked through screw holes in the internal thread cylinders 6, at the moment, the four slots 4 are enclosed in the hollow of the protective coaming 5, the sealing gasket 52 is extruded and deformed, the sealing effect between the lower end face of the protective coaming 5 and the upper end face of the pier body 1 can be ensured, at the moment, epoxy mortar can be filled in the slots 4, liquid epoxy mortar which overflows after the slots 4 are filled, flows out from the upper end openings of the slots 4, the epoxy mortar which flows out can be blocked by the protective coaming 5 which is enclosed on the periphery, and the epoxy mortar which flows onto the outer side wall of the pier body 1 can be effectively avoided, and the anticorrosion layer 51 arranged on the inner side wall surface of the protective surrounding plate 5 can contact with the epoxy mortar flowing out, the whole anticorrosion layer 51 is made of silicon rubber, a nano-silica coating is sprayed on the outer surface of the inner side wall, the nano-silica coating is an inorganic chemical material, commonly called white carbon black, the anticorrosion layer and the silicon rubber material have excellent corrosion resistance, the corrosion resistance of the epoxy mortar flowing out is effectively improved, in addition, when the bolt 7 rotates clockwise and moves downwards for locking, the nut at the upper end can sink into the countersunk groove 9, the nut can give a downward extrusion force to the extrusion pad 91 preset on the inner wall surface of the countersunk groove 9, the extrusion pad 91 is a high-elasticity foaming PU cushion layer, the extrusion pad can deform after being extruded downwards to form an upward resilience force, and the upward resilience force in the longitudinal direction acts on the bolt 7, so as to improve the anti-loosening performance of the bolt 7, and further effectively guarantee the installation stability of the protective coaming 5.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a bridge beam supports bottom installation protective structure, includes pier body (1), its characterized in that: a support body (2) is arranged above the pier body (1), an inserted bar (3) is arranged at the lower end of the support body (2), the inserted bar (3) is inserted through an inserting groove (4) arranged on the support body (2), a grouting layer (41) is arranged in the slot (4), a protective coaming (5) is arranged around the outer side wall of the support body (2), the hollow inner wall surface of the protective enclosing plate (5) is provided with an anti-corrosion layer (51), the inner wall surface of the anti-corrosion layer (51) is contacted and pressed with the outer side wall of the support body (2), a sealing gasket (52) is arranged on the lower end face of the protective enclosing plate (5), a through hole (8) is arranged on the protective enclosing plate (5), a bolt (7) is inserted in the through hole (8), the upper end of the pier body (1) is provided with an internal thread cylinder (6), and the internal thread cylinder (6) is in threaded connection with a bolt (7).

2. The bridge bearer bottom installation protection structure of claim 1, wherein: the number of the internal thread cylinders (6) is four, and the internal thread cylinders are uniformly distributed on the pier body (1) by taking the vertical and horizontal central axes of the support body (2) as the center.

3. The bridge bearer bottom installation protection structure of claim 1, wherein: a countersunk groove (9) is formed in the protective enclosing plate (5), and the countersunk groove (9) is communicated with the through hole (8).

4. The bridge bearer bottom installation protection structure of claim 3, wherein: an extrusion pad (91) is arranged in the inner wall of the countersunk head groove (9), and the lower end of the bolt (7) is set to be a conical head (71).