CN214613620U

CN214613620U - Cast-in-situ cross beam support frame

Info

Publication number: CN214613620U
Application number: CN202023139924.XU
Authority: CN
Inventors: 冯志杰; 邱鹏; 余运良; 韩春鹏; 王畅
Original assignee: Road and Bridge South China Engineering Co Ltd
Current assignee: Road and Bridge South China Engineering Co Ltd
Priority date: 2020-12-23
Filing date: 2020-12-23
Publication date: 2021-11-05
Anticipated expiration: 2030-12-23

Abstract

The application provides a cast-in-place crossbeam support frame, it is including locating the inboard chord member of pylon, bailey frame, distribution beam and die block, the chord member is to extending and erect on the bracket that the pylon was predetermine to both sides pylon along the cross bridge, the chord member bottom still is connected with the diagonal brace, the one end of diagonal brace is connected with the chord member aslope, its other end supports on the bracket that the pylon was predetermine, and be equipped with the pull rod of being connected with the bracket that supplies the chord member to erect on the diagonal brace, bailey frame is located the chord member top along the cross bridge to extending, be equipped with between chord member and the bailey frame along following the crossbeam of bridge to extending, bailey frame top is located in proper order to distribution beam and die block. This application constitutes triangle-shaped bracket system through diagonal brace and chord member, adds simultaneously on the diagonal brace and establishes the pull rod for the support frame of this application has good structural stability, can satisfy in the support demand to cast-in-place well crossbeam, and simple structure, can be convenient for the construction operation, shortens the engineering time, improves the efficiency of construction.

Description

Cast-in-situ cross beam support frame

Technical Field

The application relates to the field of tower column and beam construction, in particular to a cast-in-place beam support frame.

Background

The cable tower is generally of a double-limb structure, an upper cross beam, a middle cross beam and a lower cross beam are arranged between two tower columns, wherein the middle cross beam of the cable tower generally adopts a bracket construction bracket, a bracket is embedded in a certain height position on the tower columns, the cross beam construction bracket is erected on the bracket, and the cable tower is suitable for construction of a high-height cable tower cross beam. However, in the middle cross beam construction, due to the large cross beam span, the traditional bracket is not enough to support the cross beam load during the construction, potential safety hazards exist, a large amount of steel pipe materials are needed for building a high support, more support wall-attached embedded parts need to be installed, the hoisting workload is large during the support installation and removal, the overhead welding workload is large, great overhead operation risks exist during the construction, and the steel pipe support is long in assembly and disassembly period. Especially when the height is higher for the support to set up, still need to set up the multichannel support and attach the wall, can lead to when the cable tower construction need bury a large amount of wall-attached buried pieces underground, still need repair the built-in fitting position after the support demolishs, greatly increased cable tower fitment work degree of difficulty and safety risk.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a simple structure, construction convenience and structural stability are high cast-in-place crossbeam support frame.

In order to achieve the above object, the present application provides the following technical solutions:

the utility model provides a cast-in-place crossbeam support frame, is including locating chord member, bailey frame, distribution roof beam and the die block of pylon inboard, the chord member is to extending and erect on the bracket that the pylon was predetermine in both sides along the cross bridge, the chord member bottom still is connected with the diagonal brace, the one end of diagonal brace with the chord member is connected, and its other end supports on the bracket that the pylon was predetermine, be equipped with on the diagonal brace and supply the pull rod that the bracket that the chord member erect is connected, bailey frame is located to extending along the cross bridge the chord member top, the chord member with be equipped with between the bailey frame along the crossbeam that extends in the same direction as the bridge, distribution roof beam and die block are located in proper order bailey frame top.

Further setting: the two groups of diagonal braces are symmetrically arranged by taking the center line of the chord member as a center line, and the two groups of diagonal braces are respectively and correspondingly connected with the brackets preset on the tower columns at the two sides.

Further setting: and two inclined supporting rods are arranged in each group side by side along the bridge direction, and a parallel connection and a cross brace are arranged between the two inclined supporting rods.

Further setting: the chord member is provided with a falling wedge block, the cross beam is arranged on the chord member through the falling wedge block, and the falling wedge block and the cross beam are provided with four groups along the length direction of the chord member.

Further setting: the cross beam comprises 2I45a steel.

Further setting: the bailey frames comprise a plurality of bailey pieces symmetrically arranged along the bridge direction.

Further setting: the distribution beam comprises a primary distribution beam and a secondary distribution beam, the primary distribution beam extends along the bridge direction and is arranged above the bailey truss, and the secondary distribution beam extends along the transverse bridge direction and is arranged on the primary distribution beam.

Further setting: the primary distribution beam and the secondary distribution beam are both made of I25a section steel, and the distance between two adjacent primary distribution beams is 1.5 m.

Further setting: and end adjusting pad beams extending along the bridge direction are arranged on the two sides of the distribution beam on the Bailey truss.

Compared with the prior art, the scheme of the application has the following advantages:

1. in the cast-in-place crossbeam support frame of this application, constitute triangle-shaped bracket system through diagonal brace and chord member, add simultaneously on the diagonal brace and establish the pull rod for the support frame of this application has good structural stability, can satisfy in the support demand to cast-in-place crossbeam, and simple structure can be convenient for the construction operation, shortens the engineering time, improves the efficiency of construction.

2. In the cast-in-place crossbeam support frame of this application, can satisfy in the atress demand of support frame to the well crossbeam through setting up once distributive girder and secondary distributive girder with great ease perpendicularly to ensure the support strength of this application cast-in-place crossbeam support frame.

3. In the cast-in-place crossbeam support frame of this application, be equipped with along the end regulation pad roof beam that extends to the bridge through the both sides that are located the distributive girder at bailey frame to the chamfer that is arranged in the adaptation crossbeam and column connection department, in order to play and strut and adjust the chamfer effect, improve the supporting role of centering crossbeam then.

Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.

Drawings

The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic structural view of one embodiment of a cast-in-place cross beam support frame of the present application;

fig. 2 is a schematic side view of an embodiment of a cast-in-place cross beam support frame according to the present application.

In the figure, 1, a chord; 11. a frame falling wedge block; 12. a stabilizer bar; 13. a stiffening rib; 2. a cross beam; 3. a bailey frame; 41. a primary distribution beam; 42. a secondary distribution beam; 5. bottom die; 61. a first corbel; 62. a second corbel; 63. embedding reinforcing steel bars in advance; 7. a diagonal brace; 71. parallel connection; 72. a scissor support; 73. a pull rod; 8. the end adjusts the bolster.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.

Referring to fig. 1 and 2, the present application relates to a cast-in-place beam support frame, which includes a chord 1, a beam 2, a bailey truss 3, a distribution beam and a bottom mold 5, which are disposed inside a tower column, wherein the chord 1 extends along a transverse bridge direction and is erected on a bracket preset on an inner side wall of two tower limbs of the tower column, the bracket includes a first bracket 61 and a second bracket 62, the first bracket 61 is located above the second bracket 62, the chord 1 is erected on the first bracket 61, meanwhile, an inclined strut 7 is connected to a bottom of the chord 1, one end of the inclined strut 7 is connected to the chord 1 in an inclined manner, and the other end of the inclined strut is supported on the second bracket 62. In addition, bailey truss 3 extends along the transverse bridge direction and is arranged above chord member 1, crossbeam 2 extends along the bridge direction and is arranged between chord member 1 and bailey truss 3, and distributing beam and bottom die 5 are arranged above bailey truss 3 in sequence. This application is through making diagonal brace 7 with chord member 1 constitutes triangle-shaped bracket system to improve this application support frame structure's stability, simple structure, construction convenience.

Preferably, two groups of diagonal braces 7 are provided in the embodiment, taking the center line of the chord member 1 as a symmetric center, and the two groups of diagonal braces 7 are respectively connected to the second corbels 62 preset on the two tower limbs of the tower column. Two inclined supporting rods 7 are arranged in parallel along the bridge direction in each group, correspondingly, two chord members 1 are also arranged in parallel along the bridge direction, each chord member 1 is correspondingly connected with two inclined supporting rods 7 in each group respectively, and 2I45a steel is preferably adopted as the chord member 1 in the embodiment.

Further, a parallel connection 71 and a cross brace 72 are arranged between two diagonal braces 7 of each group to improve the structural stability between the diagonal braces 7, and in this embodiment, the parallel connection 71 preferably adopts 2I20a type steel, and the cross brace 72 preferably adopts I20a type steel.

Furthermore, the diagonal brace 7 is provided with a pull rod 73 connected to a bracket (i.e., the first bracket 61) on which the chord 1 is erected, and two triangular bracket systems can be formed among the pull rod 73, the diagonal brace 7 and the chord 1, so that the structural stability of the diagonal brace 7 can be further improved, and the pull rod 73 of the embodiment is preferably made of 2I20a steel.

In addition, a stiffening rib 13 is arranged at the joint of the chord 1 and the inclined stay bar 7 to improve the structural strength of the joint of the chord 1 and the inclined stay bar 7, and further improve the structural stability of the triangular bracket formed by connecting the chord 1 and the inclined stay bar 7.

First bracket 61 and second bracket 62 all are connected with pre-buried embedded steel bar 63 in the column, can ensure the stability of bracket, then ensure the structural stability of this application support frame.

Still be equipped with on the chord member 1 and fall a setting voussoir 11, crossbeam 2 passes through fall a setting voussoir 11 and install on the chord member 1. Preferably, four cross beams 2 are arranged side by side along the length direction of the chord 1, and correspondingly, four sets of the frame falling wedges 11 are arranged along the length direction of the chord 1 to correspondingly mount the four cross beams 2. In addition, the cross beam 2 of the embodiment preferably adopts 2I45a steel.

Meanwhile, the chord member 1 is further provided with a stabilizer bar 12 extending along the bridge direction, the stabilizer bar 12 is connected with two chord members 1 arranged side by side to improve the stability of the chord member 1, and the stabilizer bar 12 in the embodiment preferably adopts I20a steel.

The bailey frames 3 are arranged on the cross beam 2 and serve as longitudinal beams of the support frame, and the bailey frames 3 comprise a plurality of bailey pieces arranged along the bridge direction. Preferably, 12 pieces of bailey pieces are provided in the present embodiment, and the 12 pieces of bailey pieces are symmetrically provided about the center line of the beam 2.

The distribution beam is arranged on the bailey truss 3, specifically, the distribution beam comprises a primary distribution beam 41 and a secondary distribution beam 42, the primary distribution beam 41 extends along the bridge direction, and the secondary distribution beam 42 is arranged above the primary distribution beam 41 along the transverse bridge direction. Preferably, the primary distribution beam 41 and the secondary distribution beam 42 of the present embodiment both use I25a steel, and two adjacent primary distribution beams 41 are disposed at an interval of 1.5 m. This application can satisfy in the atress demand of support frame to the intermediate transverse beam through setting up distribution beam 41 and secondary distribution beam 42 once to ensure the support strength of this application cast-in-place crossbeam support frame.

Furthermore, the two sides of the distribution beam on the Bailey truss 3 are provided with end adjusting pad beams 8 extending along the bridge direction, so that the end adjusting pad beams can be matched with chamfers at the joints of the middle cross beam and the tower columns, and the functions of supporting and adjusting chamfers are achieved. The end adjusting pad beam 8 is preferably made of I25a steel or I45a steel.

To sum up, the cast-in-place crossbeam support frame of this application passes through diagonal brace 7 and constitutes triangle-shaped bracket system with chord member 1, adds simultaneously on diagonal brace 7 and establishes pull rod 73 for the support frame of this application has good structural stability, can satisfy in the support demand to cast-in-place crossbeam, and simple structure, the construction operation of can being convenient for shortens the engineering time, improves the efficiency of construction.

The foregoing is only a partial embodiment of the present application, and it should be noted that, for those skilled in the art, several modifications and decorations can be made without departing from the principle of the present application, and these modifications and decorations should also be regarded as the protection scope of the present application.

Claims

1. The utility model provides a cast-in-place crossbeam support frame which characterized by: including locating chord member, bailey frame, distribution beam and the die block of pylon inboard, the chord member is to extending and erect on the bracket that two tower limbs of pylon were predetermine along the cross bridge, the chord member bottom still is connected with the diagonal brace, the one end of diagonal brace with the chord member is connected, and its other end supports on the bracket that the pylon was predetermine, just be equipped with on the diagonal brace and supply the pull rod that the bracket that the chord member erect is connected, bailey frame is located to extending along the cross bridge the chord member top, the chord member with be equipped with between the bailey frame along following the crossbeam of bridge to extending, distribution beam and die block are located in proper order bailey frame top.

2. The cast-in-place beam support frame of claim 1, wherein: the two groups of diagonal braces are symmetrically arranged by taking the center line of the chord member as a center line, and are respectively and correspondingly connected with the corbels preset on the two tower limbs of the tower column.

3. The cast-in-place beam support frame of claim 2, wherein: and two inclined supporting rods are arranged in each group side by side along the bridge direction, and a parallel connection and a cross brace are arranged between the two inclined supporting rods.

4. The cast-in-place beam support frame of claim 1, wherein: the chord members are provided with falling wedge blocks, the cross beams are installed on the chord members through the falling wedge blocks, and the falling wedge blocks and the cross beams are provided with four groups along the length direction of the chord members.

5. The cast-in-place beam support frame of claim 4, wherein: the cross beam comprises 2I45a steel.

6. The cast-in-place beam support frame of claim 1, wherein: the bailey frames comprise a plurality of bailey pieces symmetrically arranged along the bridge direction.

7. The cast-in-place beam support frame of claim 1, wherein: the distribution beam comprises a primary distribution beam and a secondary distribution beam, the primary distribution beam extends along the bridge direction and is arranged above the bailey truss, and the secondary distribution beam extends along the transverse bridge direction and is arranged on the primary distribution beam.

8. The cast-in-place beam support frame of claim 7, wherein: the primary distribution beam and the secondary distribution beam are both made of I25a section steel, and the distance between two adjacent primary distribution beams is 1.5 m.

9. The cast-in-place beam support frame of claim 1, wherein: and end adjusting pad beams extending along the bridge direction are arranged on the two sides of the distribution beam on the Bailey truss.