CN213086809U - Connection structure of lattice column and connecting beam - Google Patents

Abstract

The utility model discloses a connection structure of lattice column and tie beam, include: the lattice columns are arranged in the foundation pit at intervals from left to right; and the left end and the right end of each connecting beam are respectively hinged with one lattice column. Adopt the utility model discloses a both ends of every even tie beam articulate with a lattice column respectively, and every tie beam articulates respectively between two lattice columns that correspond promptly, and lattice column adoption flexonics to make the lattice column can go up and down in the certain limit, effectively eliminate the adverse effect that the inhomogeneous uplift of pit bottom brought, strengthen the stability of whole support system, reduced the risk that even tie beam and lattice column collapse, thereby reduce the risk that the foundation ditch collapses, guarantee the safety of whole foundation ditch work progress.

Description

Connection structure of lattice column and connecting beam

Technical Field

The utility model relates to a foundation ditch supporting construction technical field, in particular to connection structure of lattice column and tie beam.

Background

In the process of deep foundation pit construction, especially in large-span foundation pit engineering, lattice columns and connecting beams are generally required to be arranged so as to reduce the span of the whole foundation pit and enhance the continuity and stability of a whole foundation pit supporting system. In the foundation ditch excavation process, the uplift phenomenon all can exist in the foundation ditch bottom surface, still can have very big inhomogeneous uplift even between adjacent lattice column, current even beam and lattice column adopt rigid connection forms such as welding, the wholeness is stronger, nevertheless when the foundation ditch produces inhomogeneous uplift, whole system is owing to receive the dragging, the moment of flexure and the shear force of junction can greatly increased, therefore increase the risk that the beam that links bursts off, further influence whole foundation ditch braced system, increase the risk that beam and lattice column burst off and pound the bottom of a pit construction operation personnel, the risk that the foundation ditch collapsed has also been increased simultaneously, so how to reduce the influence that beam and lattice column system receive the inhomogeneous uplift of bottom of a pit and become the engineering problem that foundation ditch engineering need to be solved urgently.

The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information constitutes prior art already known to a person skilled in the art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a connection structure of lattice column and tie beam to overcome lattice column and tie beam rigid connection and easily receive the inhomogeneous uplift of foundation ditch and influence, increase the moment of flexure and the shear force of lattice column and tie beam junction, thereby increase the shortcoming of the risk that the tie beam collapses.

In order to achieve the above object, the utility model provides a connection structure of lattice column and tie beam, include: the lattice columns are arranged in the foundation pit at intervals from left to right; and the left end and the right end of each connecting beam are respectively hinged with one lattice column.

Preferably, in the above technical scheme, each lattice column includes a plurality of columns connected end to end in sequence, two first i-beams distributed in a left-right opposite manner are welded between two adjacent columns in each lattice column, and a first connecting plate is welded on an outer side surface of a web plate of each first i-beam; every both ends weld respectively about the tie beam with correspond the second connecting plate that first connecting plate front and back relative distribution, just first connecting plate with correspond the second connecting plate passes through the articulated elements and articulates.

Preferably, in the above technical solution, the hinge member includes a bolt and a nut, the first connecting plate is provided with a first through hole, the second connecting plate is provided with a second through hole corresponding to the first through hole in a front-back direction, and the bolt passes through the first through hole and the second through hole and is connected through the nut.

Preferably, in the above technical solution, the nut is welded to an outer side surface of the second connecting plate.

Preferably, in the above technical solution, each of the columns includes four equal angle steels, and the four equal angle steels surround a rectangular frame structure and are welded integrally by a plurality of first gusset plates.

Preferably, in the above technical solution, each of the connecting beams includes two second i-beams, and the two second i-beams are distributed in a front-to-back opposite manner and welded to a single body through a plurality of second gusset plates.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model discloses a connect into an organic whole through linking the roof beam between the lattice post, improve the wholeness ability of lattice post, and every both ends of linking the roof beam articulate with a lattice post respectively, every links the roof beam and articulates respectively between two lattice posts that correspond promptly, and lattice post adopts the flexonics, so that the lattice post can go up and down in the certain limit, effectively eliminate the adverse effect that uneven uplift in pit bottom brought, strengthen the stability of whole support system, reduce the risk that linking roof beam and lattice post collapse, thereby reduce the risk that the foundation ditch collapses, guarantee the safety of whole foundation ditch work progress.

2. The utility model discloses an adopt the bolt to articulate between the second connecting plate of tie beam and the second connecting plate of lattice column, convenient to detach can reuse, and work efficiency is high.

Drawings

Fig. 1 is a simplified structural schematic diagram of a connection structure of a lattice column and a tie beam according to the present invention.

Fig. 2 is a schematic view of a concrete connection structure of the connection beam and the lattice column according to the present invention.

Fig. 3 is a schematic structural view of a hinge connection according to the present invention.

Description of the main reference numerals:

1-lattice column, 11-column body, 111-angle steel, 112-first batten plate, 2-connecting beam, 21-second I-shaped steel, 22-second batten plate, 23-second connecting plate, 3-first I-shaped steel, 4-first connecting plate, 5-hinge piece, 51-bolt and 52-nut.

Detailed Description

The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited by the following detailed description.

Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.

Fig. 1 to 3 are schematic structural views showing a connection structure of a lattice column 1 and a tie beam 2 according to a preferred embodiment of the present invention, the connection structure including a plurality of lattice columns 1 and a plurality of tie beams 2. Referring to fig. 1 to 3, a plurality of lattice columns 1 are arranged in the foundation pit at intervals from left to right, that is, the plurality of lattice columns 1 are distributed at intervals along the length direction of the foundation pit to support the foundation pit; at least one connecting beam 2 is arranged between two adjacent lattice columns 1 so as to connect all the lattice columns 1 into a whole, the overall performance of the lattice column is improved, and when the number of the connecting beams 2 between two adjacent lattice columns 1 is two or more, all the connecting beams 2 are arranged at intervals along the vertical direction. And both ends are articulated with a lattice column 1 respectively about every connection roof beam 2, and every connection roof beam 2 articulates respectively between two lattice columns 1 that correspond promptly, adopt flexonics with lattice column 1, so that lattice column 1 can go up and down in certain extent, effectively eliminate the adverse effect that the uneven uplift of pit bottom brought, strengthen the stability of whole support system, reduce the risk that connection roof beam 2 and lattice column 1 collapse, thereby reduce the risk that the foundation ditch collapses, guarantee the safety of whole foundation ditch work progress.

Referring to fig. 2 and 3, preferably, each lattice column 1 includes a plurality of columns 11 connected end to end in sequence, and the axis of each column 11 is distributed in the up-down direction. In each lattice column 1, two first I-beams 3 which are distributed oppositely from left to right are welded between two adjacent columns 11, namely, on each lattice column 1, the two columns 11 which are adjacent from top to bottom are welded and connected through the two first I-beams 3 which are distributed oppositely from left to right, the top of each lattice column 1 is connected with a concrete beam, and the bottom of each lattice column 1 is connected with the bottom surface of a foundation pit. The upper flange plate of the first I-beam 3 positioned between the two columns 11 is welded with the bottom surface of the column 11 positioned above the upper flange plate, and the lower flange plate is welded with the top surface of the column 11 positioned below the lower flange plate; and the outer side of the web plate of each first i-steel 3 is welded with a first connecting plate 4, namely, in the two first i-steels 3 which are relatively distributed left and right, the left side of the web plate of the first i-steel 3 positioned on the left side is welded with the first connecting plate 4, the right side of the web plate of the first i-steel 3 positioned on the right side is welded with the first connecting plate 4, the left and right ends of each connecting beam 2 are respectively welded with second connecting plates 23 which are relatively distributed front and back of the corresponding first connecting plate 4, and the first connecting plates 4 and the corresponding second connecting plates 23 are hinged through hinge pieces 5.

Referring to fig. 2 to 3, the hinge 5 may be a pin or a bolt 51, and preferably, the hinge 5 includes a bolt 51 and a nut 52, the first connecting plate 4 is provided with a first through hole, the second connecting plate 23 is provided with a second through hole corresponding to the first through hole in a front-back direction, and the bolt 51 passes through the first through hole and the second through hole and is connected by the nut 52, so that the first connecting plate 4 and the second connecting plate 23 can rotate around the bolt 51, and the bolt 51 is used for hinging, which can be conveniently detached, so that the tie beam 2 and the lattice column 1 can be reused. Further preferably, in order to improve the stability of the connection between the bolt 51 and the nut 52, and thus improve the safety of the connection between the first connecting plate 4 and the second connecting plate 23, the nut 52 is welded to the outer side surface of the second connecting plate 23.

Referring to fig. 2, each of the columns 11 preferably includes four equal leg angles 111, and the four equal leg angles 111 are enclosed in a rectangular parallelepiped frame structure and welded integrally by a plurality of first gusset plates 112.

Referring to fig. 2, each of the coupling beams 2 preferably includes two second i-beams 21, and the two second i-beams 21 are arranged to face each other in a front-rear direction and welded integrally by a plurality of second gusset plates 22.

By adopting the connecting structure of the connecting beam 2 and the lattice column 1, the adverse effect caused by uneven rising of the bottom of the foundation pit can be effectively avoided, and the safety and stability of the whole foundation pit supporting system are ensured; and the connecting beam 2 and the lattice column 1 are hinged by the bolts 51, so that the connecting beam is convenient to disassemble and assemble, can be repeatedly used and has high working efficiency.

The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.

Claims (6)

1. A connection structure of lattice column and tie beam, characterized by comprising:

the lattice columns are arranged in the foundation pit at intervals from left to right; and

the lattice column is hinged to the left end and the right end of the connecting beam.

2. The connecting structure of lattice columns and connecting beams according to claim 1, wherein each lattice column comprises a plurality of columns which are sequentially connected end to end, two first I-shaped steels which are oppositely distributed left and right are welded between two adjacent columns in each lattice column, and a first connecting plate is welded on the outer side surface of a web plate of each first I-shaped steel; every both ends weld respectively about the tie beam with correspond the second connecting plate that first connecting plate front and back relative distribution, just first connecting plate with correspond the second connecting plate passes through the articulated elements and articulates.

3. A connecting structure of lattice column and tie beam as claimed in claim 2, wherein said hinge member comprises a bolt and a nut, said first connecting plate defines a first through hole, said second connecting plate defines a second through hole corresponding to the front and rear of said first through hole, said bolt passes through said first through hole and said second through hole and is connected by said nut.

4. A lattice column and tie beam connection according to claim 3, wherein said nut is welded to the outer side of said second web.

5. A lattice column and connecting beam connection structure as claimed in claim 2, wherein each of said columns includes four equal angle steel, said four equal angle steel enclosing a rectangular parallelepiped frame structure and being welded integrally by a plurality of first gusset plates.

6. A lattice column and connecting beam connection structure as claimed in claim 1, wherein each of said connecting beams comprises two second i-beams which are arranged in front and rear opposition and welded integrally by a plurality of second gusset plates.

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