CN-224213139-U - Bracket for door pier construction

Abstract

The application relates to a bracket for portal pier construction, which relates to the technical field of bridge construction brackets, and comprises a lower supporting frame, a transverse truss girder, special-shaped truss girders and a cover girder bottom die, wherein the lower supporting frame is used for being arranged on the inner side of a portal pier, the transverse truss girder is arranged at the upper end of the lower supporting frame, the special-shaped truss girder is arranged at two ends of the transverse truss girder and is detachably connected with the transverse truss girder, the special-shaped truss girder is matched with the inner side of a cover girder of the portal pier in shape, and the upper sides of the special-shaped truss girder and the transverse truss girder are used for installing the cover girder bottom die of the portal pier. Because the shape of special-shaped truss beam is matched with the inner side of the gate pier bent cap and is detachably connected with the transverse truss beam, the special-shaped truss beam can be replaced according to the requirements and the shape of the inner side of the gate pier bent cap, the integral bent cap is not required to be manufactured again or the original integral bent cap is required to be cut and welded, the operation is simple, the problem that the upper layer of the special-shaped bent cap and the lower layer of the gate pier in the prior art are possibly different, the integral bent cap is required to be manufactured again or the original integral bent cap is required to be cut and welded is solved, the operation is complex, and the problem of reducing the construction efficiency is solved.

Inventors

• NIU WEIFENG
• YANG ZEWEI
• LIU PENGTAO
• ZHAO HUI
• LI YANG
• JIA YANWEI
• JIN YUEFEI
• ZHANG HAODI
• CHEN HONGXU
• JIANG HONG
• ZHOU LIANGLIANG
• WANG YUANJING
• SHI PENGHUI
• SHI YU
• SHI JINGXU
• SUN WENBO

Assignees

• 中铁大桥局集团第一工程有限公司
• 中铁大桥局集团有限公司

Dates

Publication Date

20260508

Application Date

20250513

Claims (10)

1. 1. A bracket for portal pier construction, comprising: A lower support frame (1) for being arranged inside the gate pier (3); the transverse truss beam (2) is arranged at the upper end of the lower supporting frame (1); The special-shaped truss beam (4) is arranged at two ends of the transverse truss beam (2) and is detachably connected with the transverse truss beam (2), the shape of the special-shaped truss beam (4) is matched with the inner side of the bent cap of the gate pier (3), and the upper sides of the special-shaped truss beam (4) and the transverse truss beam (2) are used for installing the bottom die of the bent cap of the gate pier (3).
2. 2. A bracket for portal pier construction according to claim 1, characterized in that the upper and lower sides of the two ends of the transverse girder (2) are provided with pin shaft connectors (7), and the transverse girder (2) is connected with the special-shaped girder (4) through the pin shaft connectors (7).
3. 3. A bracket for portal pier construction according to claim 2, characterized in that the special-shaped trusses (4) comprise a plurality of groups of special-shaped trusses arranged at intervals, the transverse trusses (2) comprise transverse trusses corresponding to the special-shaped trusses one by one, and the upper side and the lower side of each transverse trusses are provided with pin shaft connectors (7).
4. 4. A bracket for door pier construction according to claim 1, characterized in that the lower support frame (1) comprises: The four steel pipe stand columns (11) are fixedly arranged and are respectively arranged on the vertexes of the rectangle; The two longitudinal distribution beams (12) are arranged at intervals, the longitudinal distribution beams (12) are arranged at the upper ends of the two steel pipe upright posts (11) positioned on the same side, and the upper sides of the longitudinal distribution beams (12) are connected with the transverse truss beams (2).
5. 5. A support for portal pier construction according to claim 4, characterized in that between the steel tube upright (11) and the longitudinal distribution beam (12) there is a drop block (13).
6. 6. A bracket for portal pier construction according to claim 5, characterized in that the drop block (13) comprises two wedge blocks and a screw assembly, the inclined surfaces of the two wedge blocks are arranged opposite, the outside of the wedge block is provided with a slot hole along the vertical direction, the screw assembly passes through the slot hole, a screw cap is used for propping against the outside of the corresponding wedge block, when the drop block (13) is required to be adjusted in height, the screw cap is unscrewed, and the wedge block positioned above slides along the inclined surface of the other wedge block until the wedge block is propped against the screw cap again.
7. 7. A bracket for door pier construction according to claim 4, characterized in that the side of the steel pipe column (11) close to the pier column of the door pier (3) is provided with a wall connecting member (111), which wall connecting member (111) is adapted to be fixed to the pier column.
8. 8. A support for portal pier construction according to claim 4, characterized in that a connection system (14) is provided between two steel pipe columns (11) located on the same side, said connection system (14) comprising a support diagonal and two support crossbars, two of said support crossbars being arranged at intervals along said steel pipe columns (11), said support diagonal being located between two of said support crossbars, both ends of said support diagonal being connected to opposite ends of two of said support crossbars, respectively.
9. 9. A bracket for portal pier construction according to claim 4, characterized in that it further comprises a foundation structure (5), said foundation structure (5) being arranged at the lower end of the steel pipe column (11), the diameter of said foundation structure (5) being larger than the diameter of said steel pipe column (11).
10. 10. A bracket for door pier construction according to claim 1, characterized in that the upper sides of the profiled girders (4) and the transverse girders (2) are provided with a plurality of profile steel distribution beams (6), a plurality of profile steel distribution beams (6) are arranged at intervals along the cover girders of the door pier (3), and the upper sides of the profile steel distribution beams (6) are used for installing the cover girder bottom molds of the door pier (3).

Description

Bracket for door pier construction Technical Field The utility model relates to the technical field of bridge construction supports, in particular to a support for door pier construction. Background With the continuous development of urban traffic, the number of urban overhead or overpass bridges is continuously increased, and when the crossing angle of an upper crossing route and a ground route is smaller and the inclination is larger, a gate pier structure is generally adopted, and the gate pier is limited by various factors such as topography, structures, traffic and the like, and has flexible adaptability. Therefore, in designing a bridge, the gate pier is increasingly widely used in bridge construction. In the pier top closure section construction process of the gate pier structure, a bracket is often required to be installed in order to facilitate the construction of the bridge gate pier. In the prior art, aiming at the special-shaped structure bent cap, an integral bent cap often needs to be processed so as to perform site bent cap construction. However, the machined integral bent frame can only be used for specific special-shaped bent caps generally, when the double-layer gate pier is built, the special-shaped bent caps of the upper and lower gate piers can be different, the integral bent frame needs to be manufactured again or the original integral bent frame needs to be cut and welded, the operation is complex, and the problem of reducing the construction efficiency exists. Disclosure of utility model The application provides a bracket for portal pier construction, which can solve the problems that an integral bent stock processed in the prior art can only be generally used for a specific special-shaped bent cap, the special-shaped bent caps of an upper portal pier and a lower portal pier can be different when a double-layer portal pier is built, the integral bent stock is required to be remanufactured or the original integral bent stock is cut and welded, the operation is complicated, and the construction efficiency is reduced. In a first aspect, an embodiment of the present application provides a bracket for door pier construction, including: a lower support frame for being disposed inside the gate pier; The transverse truss girder is arranged at the upper end of the lower supporting frame; The special-shaped trusses are arranged at two ends of the transverse trusses and are detachably connected with the transverse trusses, the shapes of the special-shaped trusses are matched with the inner sides of the door pier cover beams, and the upper sides of the special-shaped trusses and the transverse trusses are used for installing the cover beam bottom die of the door pier. In one embodiment, pin shaft connectors are arranged on the upper side and the lower side of two ends of the transverse truss, and the transverse truss is connected with the special-shaped truss through the pin shaft connectors. In one embodiment, the special-shaped trusses comprise a plurality of groups of special-shaped trusses arranged at intervals, the transverse trusses comprise transverse trusses corresponding to the special-shaped trusses one by one, and the upper side and the lower side of each of the two ends of each transverse trusses are respectively provided with the pin shaft connecting piece. In one embodiment, the lower support frame comprises: the four steel pipe stand columns are fixedly arranged and are respectively arranged on the vertexes of the rectangle; The two longitudinal distribution beams are arranged at intervals, the longitudinal distribution beams are arranged at the upper ends of the two steel pipe upright posts positioned on the same side, and the upper sides of the longitudinal distribution beams are connected with the transverse truss beams. In one embodiment, a drop block is disposed between the steel pipe column and the longitudinal distribution beam. In one embodiment, the unloading block comprises two wedge blocks and a screw rod assembly, the inclined surfaces of the two wedge blocks are oppositely arranged, a long hole along the vertical direction is formed in the outer side of each wedge block, the screw rod assembly penetrates through the long hole, a screw cap is used for propping against the outer side of the corresponding wedge block, when the height of the unloading block needs to be adjusted, the screw cap is unscrewed, and the wedge block above slides along the inclined surface of the other wedge block until the wedge block is propped against the screw cap again. In one embodiment, a wall connecting piece is arranged on one side, close to the gate pier column, of the steel pipe column, and the wall connecting piece is used for being fixed on the pier column. In one embodiment, a connection system is arranged between two steel pipe columns positioned on the same side, the connection system comprises a supporting diagonal rod and two supporting cross rods, the two supporting cross rods