CN218145297U

CN218145297U - Suspension type pier top platform

Info

Publication number: CN218145297U
Application number: CN202222223811.0U
Authority: CN
Inventors: 郭宝圣; 沈伟; 王辉; 冉垂正; 曾宇廷
Original assignee: Road and Bridge International Co Ltd; Road and Bridge East China Engineering Co Ltd
Current assignee: Road and Bridge International Co Ltd; Road and Bridge East China Engineering Co Ltd
Priority date: 2022-08-23
Filing date: 2022-08-23
Publication date: 2022-12-27
Anticipated expiration: 2032-08-23

Abstract

The utility model relates to a suspension type pier top platform, which comprises two longitudinal truss pieces and two transverse truss pieces, wherein each truss piece is horizontally arranged, the top surface of each truss piece is flush, the two ends of each transverse truss piece are respectively welded with the two ends of the two longitudinal truss pieces, the top surface of each longitudinal truss piece is symmetrically welded with two upper lifting lugs, a sling is connected between every two opposite upper lifting lugs on the two longitudinal trusses, a rectangular frame formed by the two longitudinal truss pieces and the two transverse truss pieces is sleeved on the periphery of the pier top, and the two slings span and are supported on the pier top; at least one lower lifting lug is welded on the bottom surface of each truss piece, an embedded part is arranged on the pier body corresponding to each lower lifting lug, and a stay cable is connected between each lower lifting lug and the embedded part on the pier body. The utility model discloses can wholly lift by crane and overlap in mound top periphery at ground processing, the hoist cable spanes at the mound top, hangs the platform in mound top periphery, and the installation is dismantled fastly, and high altitude construction time is short.

Description

Suspension type pier top platform

Technical Field

The utility model belongs to the technical field of the bridge construction, a bridge height mound top abutment construction is related to, concretely relates to suspension type mound top platform for mound top abutment construction.

Background

The support construction at the high pier top of bridge, or other processes need when the pier top operation, because the pier top space is narrow and small, need set up construction platform in the pier top periphery to enlarge the construction space. In a conventional pier top platform structure, as shown in fig. 1, a plurality of triangular brackets 2 are attached to a pier top peripheral wall of a pier 1, and a construction platform is built on the triangular brackets 2. The triangular bracket is installed by arranging more embedded parts on the pier body or arranging a preformed hole penetrating through the pier body to penetrate through the pull rod, so that the appearance of the pier body is damaged, and the later repair workload is large; and the high-altitude operation time is longer and the danger is higher when the triangular bracket is installed.

Disclosure of Invention

The utility model aims at the above-mentioned problem, a suspension type mound top platform is provided, realizes the quick installation of mound top platform and dismantles to reduce the damage to pier shaft outward appearance.

The technical scheme of the utility model as follows:

the utility model provides a suspension type mound top platform which characterized in that: the device comprises two longitudinal truss sheets and two transverse truss sheets, wherein each truss sheet is arranged in a flat mode, the top surfaces of the truss sheets are flush, two ends of each transverse truss sheet are respectively welded with two ends of the two longitudinal truss sheets to form a rectangular frame, two upper lifting lugs are symmetrically welded on the top surface of each longitudinal truss sheet relative to the transverse center line of the longitudinal truss sheet, a sling is connected between every two opposite upper lifting lugs on the two longitudinal trusses, the rectangular frame formed by the two longitudinal truss sheets and the two transverse truss sheets is sleeved on the periphery of the pier top, and the two slings span and are supported on the pier top; at least one lower lifting lug is welded on the bottom surface of each truss sheet, an embedded part is arranged on the pier body at a certain height away from the pier top corresponding to each lower lifting lug, and a stay cable is connected between each lower lifting lug and the embedded part on the pier body; and a platform panel is laid on the top surface of each truss piece.

The utility model discloses the high mound top construction that is more applicable to rectangular cross section can be processed into wholly on ground, adopts the mobile crane to lift by crane and overlap in the mound top periphery, lifts by crane wire rope and spanes at the mound top, hangs the platform in the mound top periphery, and the installation is dismantled fastly, and the high altitude construction time is short. The inclined stay cable connected between the side of the platform 4 and the pier body can keep the platform balanced. The embedded parts arranged on the pier body are small in quantity and small in formed holes, and the repairing is easy.

Drawings

FIG. 1 is a schematic elevation structure of a prior art pier top platform;

fig. 2 is a schematic plan view of the present invention;

fig. 3 is a schematic elevation structure of the present invention.

Detailed Description

As shown in fig. 2 and 3, the utility model comprises two longitudinal truss pieces 3 and two transverse truss pieces 4, each truss piece is horizontally arranged and the top surface is flush, the two ends of the two transverse truss pieces 4 are respectively welded with the two ends of the two longitudinal truss pieces 3 to form a rectangular frame, two upper lifting lugs 5 are symmetrically welded on the top surface of each longitudinal truss piece 3 about the transverse central line of the longitudinal truss piece, a sling 6 is connected between every two opposite upper lifting lugs on the two longitudinal trusses, the rectangular frame formed by the two longitudinal truss pieces and the two transverse truss pieces is sleeved on the periphery of the top of the pier body 1, and the two slings 6 span and are supported on the top of the pier; at least one lower lifting lug 7 is welded on the bottom surface of each truss piece, an embedded part 8 is arranged on the pier body at a certain height from the pier top and corresponds to each lower lifting lug, a stay cable 9 is connected between each lower lifting lug 7 and the embedded part 8 on the pier body, and a platform panel is laid on the top surface of each truss piece.

According to the structure, the platform is hung on the periphery of the pier top through the suspension cables, the platform can be guaranteed to be balanced through the inclined suspension cables in four directions, the inclined suspension cables are prevented from deflecting towards one direction, and therefore the levelness and the stability of the platform are guaranteed.

The utility model discloses during the concrete implementation, can built-in fitting on the pier body is equipped with one and stands out the rings 10 outside the pier body, and passes through rings and lower connect the suspension cable between the lug.

The embedded part can specifically include a screw sleeve of pre-buried in pier shaft concrete, be equipped with on the pier shaft outer wall with the preformed hole of screw sleeve intercommunication, wear to establish a screw rod in the preformed hole, screw rod one end and the interior screw sleeve spiro union of pier shaft, the other end is outstanding outside the pier shaft and is set firmly a rings. The screw rod can adopt a finished screw rod provided with a hanging ring, or the hanging ring is welded on the screw rod.

The preformed hole is arranged when the concrete of the pier body is poured. Before concrete is poured, the threaded sleeve is fixed on the steel bar framework, the PVC pipe is sleeved with the threaded sleeve, a temporary screw rod penetrates through the PVC pipe, one end of the temporary screw rod is connected with the threaded sleeve, and the other end of the temporary screw rod protrudes out of the pier body and penetrates through the pouring template. After concrete pouring is completed and the formwork is removed, the temporary screw is screwed out, the PVC pipe forms a pier body preformed hole, and the screw with the hanging ring is installed through the preformed hole.

When the utility model is implemented, when a lower lifting lug is welded on the bottom surface of each truss piece, the lower lifting lug is welded on the transverse central line of the truss piece; when two or more lower lifting lugs are welded on the bottom surface of each truss piece, the lower lifting lugs are symmetrically distributed about the transverse center line of the truss piece.

In order to further increase the stability of the platform, at least one fastening bolt 11 can be penetrated and arranged on the chord member of each truss piece close to the outer wall of the pier body along the direction parallel to the top surface of the truss piece and perpendicular to the chord member, an anti-skid rubber pad 12 is arranged between the front end of the fastening bolt and the outer wall of the pier body, and the front end of the fastening bolt tightly pushes the anti-skid rubber pad on the outer wall of the pier body.

In order to install the fastening bolts, nuts 13 matched with the bolts are welded in advance on chords of each truss piece penetrating through the fastening bolts according to the penetrating positions of the bolts, screw holes communicated with the nuts are formed, and the fastening bolts 11 penetrate through the nuts 13 and the screw holes to tightly press the anti-skid rubber pads 12.

The utility model can be processed into a whole on the ground, and the size of the rectangular frame formed by the chords at the inner sides of the 4 truss pieces is equal to or slightly larger than the cross section size of the pier top; a sling is connected between the upper lifting lugs of the two longitudinal truss pieces, and the sling adopts a high-strength steel wire rope; temporarily connecting hoisting steel wire ropes on 4 upper lifting lugs of the two truss sheets, connecting the hoisting steel wire ropes with a lifting hook of an automobile crane, hoisting the platform above the pier top through the automobile crane, slowly lowering the platform after adjusting the angle, and sleeving the platform on the periphery of the pier top; and loosening the lifting hook of the truck crane to enable the two slings to be supported on the pier top, converting the platform into stress of the two slings, and connecting a stay cable between the lower lifting lug on the bottom surface of each truss piece and the embedded part of the pier body. Because the upper lifting lug is higher than the top surface of the truss piece, and the sling per se can generate certain elastic deformation, the platform is hung outside the side wall of the pier body after the inner side chord is hung on the top of the pier, fastening bolts on the inner side chord are screwed down to the side wall of the pier body one by one, an anti-skid rubber pad is inserted between the front end of each bolt and the side wall of the pier body, and the fastening bolts tightly prop the anti-skid rubber pad on the side wall of the pier body to complete the installation of the platform.

Claims

1. The utility model provides a suspension type mound top platform which characterized in that: the device comprises two longitudinal truss sheets and two transverse truss sheets, wherein each truss sheet is arranged in a flat mode, the top surfaces of the truss sheets are flush, two ends of each transverse truss sheet are respectively welded with two ends of the two longitudinal truss sheets to form a rectangular frame, two upper lifting lugs are symmetrically welded on the top surface of each longitudinal truss sheet relative to the transverse center line of the longitudinal truss sheet, a sling is connected between every two opposite upper lifting lugs on the two longitudinal trusses, the rectangular frame formed by the two longitudinal truss sheets and the two transverse truss sheets is sleeved on the periphery of the pier top, and the two slings span and are supported on the pier top; at least one lower lifting lug is welded on the bottom surface of each truss sheet, an embedded part is arranged on the pier body at a certain height away from the pier top corresponding to each lower lifting lug, and a stay cable is connected between each lower lifting lug and the embedded part on the pier body; and a platform panel is laid on the top surface of each truss piece.

2. The hanging pier top platform of claim 1, wherein: the embedded part on the pier body is provided with a hanging ring protruding out of the pier body, and a stay cable is connected between the hanging ring and the lower lifting lug.

3. The suspended pier top platform of claim 2, wherein: the embedded part comprises a threaded sleeve embedded in the concrete of the pier body, a reserved hole communicated with the threaded sleeve is formed in the outer wall of the pier body, a screw rod penetrates through the reserved hole, one end of the screw rod is in threaded connection with the threaded sleeve in the pier body, and the other end of the screw rod protrudes out of the pier body and is fixedly provided with a hanging ring.

4. The suspended pier top platform of claim 1, wherein: and a lower lifting lug is welded on the bottom surface of each truss piece, and the lower lifting lug is welded on the transverse center line of the truss piece.

5. The hanging pier top platform of claim 1, wherein: two or more lower lifting lugs are welded on the bottom surface of each truss sheet, and the lower lifting lugs are symmetrically distributed around the transverse center line of the truss sheet.

6. The suspended pier top platform of claim 1, wherein: at least one fastening bolt is arranged on the chord member of each truss piece close to the outer wall of the pier body in a penetrating mode, an anti-skid rubber pad is arranged between the front end of the fastening bolt and the outer wall of the pier body, and the anti-skid rubber pad is tightly propped against the outer wall of the pier body by the front end of the bolt.

7. The suspended pier top platform of claim 6, wherein: each truss piece penetrates through the chord of the fastening bolt, a nut matched with the bolt is welded in advance at the bolt penetrating position, a screw hole communicated with the nut is formed in the bolt penetrating position, and the fastening bolt penetrates through the nut and the screw hole to tightly push the anti-skid rubber pad.