CN218596930U - Cantilever arm suspension supporting device for steel-concrete composite beam cast-in-place bridge deck construction - Google Patents
Cantilever arm suspension supporting device for steel-concrete composite beam cast-in-place bridge deck construction Download PDFInfo
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- CN218596930U CN218596930U CN202222732027.2U CN202222732027U CN218596930U CN 218596930 U CN218596930 U CN 218596930U CN 202222732027 U CN202222732027 U CN 202222732027U CN 218596930 U CN218596930 U CN 218596930U
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Abstract
The utility model provides a cantilever suspends strutting arrangement for cast-in-place decking construction of steel-concrete composite beam, belong to cast-in-place concrete member template construction technical field, can solve the cast-in-place decking die block installation difficulty of steel-concrete composite beam, building material is extravagant in a large number, increase cost, the slow problem of construction cycle, including being located cantilever that the boundary beam was arranged to the bridge and being located the steel bar truss building carrier plate of steel-concrete composite beam limit both sides cantilever, steel bar truss building carrier plate is located the below of cantilever, the one end of cantilever is through split wire pole and steel bar truss building carrier plate fixed connection, be equipped with two rows of seamless steel pipes between split wire pole and the cantilever, the other end bottom of cantilever is equipped with the steel shotcrete, the one end and the cantilever of steel shotcrete are connected, the other end is connected with the inboard roof of steel-concrete composite beam. Through using the utility model discloses, reducible cost drops into, improves the operating efficiency greatly to reduce safety, quality hidden danger, the utility model discloses a suspension support device, the firm in support has improved construction quality.
Description
Technical Field
The utility model belongs to the technical field of cast in situ concrete component template construction, concretely relates to cantilever arm suspension support device that is used for cast-in-place decking of steel-concrete composite beam to be under construction.
Background
With the rapid development of urban construction in China and the continuous expansion of traffic facilities, more and more steel-concrete composite beam structures which are convenient to construct in large span are adopted for the overhead roads to cross the existing roads. At present, the traditional construction of a reinforced concrete structure of a steel-concrete composite beam bridge deck slab adopts the construction procedures of erecting a template support frame body, laying a template, binding reinforcing steel bars and pouring concrete, the template and the support frame body are dismantled after the concrete strength meets the structural requirement, the construction procedures are complicated, more labor force, turnover tools and management energy are required to be invested in the construction process of erecting the support frame body and the template, greater potential safety hazards exist, and quality defects and safety accidents can be caused by the non-standard operation method of workers; the template is usually more lossy, which is not conducive to cost management.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to cast-in-place decking die block installation difficulty of steel-concrete composite beam, building material is extravagant in a large number, and the slow problem of incremental cost, construction cycle provides an arm that picks that is used for the cast-in-place decking of steel-concrete composite beam to be under construction suspends strutting arrangement in midair.
The utility model adopts the following technical scheme:
the utility model provides a cantilever suspension support device for cast-in-place decking construction of steel-concrete composite beam, including being located cantilever that the horizontal bridge was arranged on the boundary beam and the steel bar truss building carrier plate that is located the cantilever of steel-concrete composite beam limit both sides cantilever, steel bar truss building carrier plate is located the below of cantilever, the one end of cantilever is through to drawing wire pole and steel bar truss building carrier plate fixed connection, be equipped with two rows of seamless steel pipes between drawing wire pole and the cantilever, the other end bottom of cantilever is equipped with the steel shotcrete, the one end and the cantilever of steel shotcrete are connected, the other end is connected with the inboard roof of steel-concrete composite beam.
Further, the cantilever is I-shaped steel.
Furthermore, steel bar truss floor carrier plate includes galvanized steel sheet, be equipped with a plurality of web members on the galvanized steel sheet, connect through last chord steel bar between the top of per two web members, bottom one side of web member is equipped with the last chord steel bar.
Furthermore, the pair of tension bar rods is fixedly connected with the lower chord steel bars of the steel bar truss floor bearing plate.
Further, the number of the steel supports is two.
Furthermore, the temporary steel support is arranged on the top plate on the outer side of one end, close to the steel bar truss floor bearing plate, of the steel-concrete composite beam, one end of the temporary steel support is connected with the top plate on the outer side of the steel-concrete composite beam, and the other end of the temporary steel support is connected with the cantilever.
The beneficial effects of the utility model are as follows:
1. the utility model adopts the floor support plate to replace the traditional erecting formwork support frame body adopted during the construction of the reinforced concrete structure of the reinforced concrete composite beam bridge deck, the construction is simple and fast, and the construction period is shortened; replace the traditional template and improve the defects of the traditional template; can be used as part of the structural strength.
2. Through using the utility model discloses, reducible cost drops into, improves the operating efficiency greatly to reduce safety, quality hidden danger.
3. The utility model discloses a suspend strutting arrangement in midair supports firmly, has improved construction quality.
Drawings
Fig. 1 is a schematic structural view of the cantilever arm suspension support device of the present invention;
fig. 2 is a schematic view of the structure of the steel bar truss floor deck of the present invention;
wherein: 1-a cantilever; 2-a steel-concrete composite beam; 3-steel bar truss floor support plate; 4-pairs of wire drawing rods; 5-seamless steel tube; 6-supporting steel; 7-galvanized steel sheet; 8-web member; 9-upper chord steel bars; 10-lower chord steel bars; 11-temporary steel support.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in the figure, an arm suspension support device that encorbelments for cast-in-place decking construction of steel-concrete composite beam, including being located cantilever 1 that the horizontal bridge was arranged on the boundary beam and being located the steel bar truss building carrier plate 3 that the arm was encorbelmented to 2 roof beam limits both sides of steel-concrete composite beam, steel bar truss building carrier plate 3 is located cantilever 1's below, cantilever 1's one end is through to drawing wire pole 4 and 3 fixed connection of steel bar truss building carrier plate, be equipped with two rows of seamless steel pipes 5 between drawing wire pole 4 and the cantilever 1, cantilever 1's other end bottom is equipped with steel shotcrete 6, steel shotcrete 6's one end is connected with cantilever 1, the other end is connected with the 2 inboard roofs of steel-concrete composite beam.
The utility model discloses be applied to die block building carrier plate construction of the cast-in-place decking of steel-concrete composite beam construction, construction process is as follows:
1. laying of steel bar truss floor support plate
Adopt TDA3-90 type steel bar truss building carrier plate, the building carrier plate adopts 0.5mm galvanized steel sheet, and upper chord, web member, lower chord adopt diameter 10, 4.5, 8 mm's reinforcing bar respectively. The specific details are shown in the following table (the A-type steel bar truss floor support plate is 600mm wide):
TDA3-90 type steel bar truss floor bearing plate; according to the size of the floor bearing plate, paying off is carried out on the reinforcing position of the steel beam top plate, and then the arranged floor bearing plate is installed, connected, straightened, flattened and connected and fixed. The connection between the floor support plates can be reinforced by fillet welding to prevent the floor support plates from moving or separating, the welding seam interval is about 300mm, and the length is preferably 20-30 mm. The cantilever arms on two sides of the beam edge of the steel-concrete composite beam are respectively 70cm, and the thickness of concrete is 20cm. And constructing the cantilever part of the side beam by adopting a mould hanging method, and arranging a profile steel cantilever beam on the top of the steel beam to hang the bottom mould of the steel bar truss floor support plate. Building carrier plate paves and accomplishes the back, and the decking is pour to the ligature reinforcing bar, specifically as follows:
1. paying off the reinforcing position of the steel beam top plate according to the size of the floor bearing plate, and then installing and welding.
2. Before the floor carrier plate is laid, must clean the debris of girder steel top surface earlier to correct the floor carrier plate that has the bending and distortion, the clearance of board and girder steel top surface should be controlled below 1 mm.
3. After the top surface of the steel beam is cleaned and no paint is painted on the steel beam, the laying position of each floor bearing plate is marked by ink lines on the steel beam according to a typesetting drawing, the required number of blocks are configured according to different plate types and are arranged along the ink lines, and then the notches are cut.
4. And (5) straightening, flattening and welding to fix the arranged floor bearing plates. The connection between the floor support plates can be reinforced by fillet welding to prevent the floor support plates from moving or separating, the welding seam interval is about 300mm, and the length is preferably 20-30 mm.
5. And (4) melting and welding the stud penetrating profiled steel sheet and the steel beam together by using a stud welding machine to connect and anchor the floor bearing plate and the steel beam.
2. Steel beam cantilever floor bearing plate reinforcement
The cantilever arms on two sides of the beam edge of the steel-concrete composite beam are respectively 70cm, and the thickness of concrete is 20cm. And constructing the cantilever part of the side beam by adopting a mould hanging method, and arranging a profile steel cantilever beam on the top of the steel beam to hang the bottom mould of the steel bar truss floor support plate.
The construction is carried out by adopting a floor-hanging bearing plate bottom die method. The method is characterized in that 16# I-steel (the length is 4m, the distance is 2 m) is arranged on a side beam in the transverse bridge direction to serve as a cantilever, a tension screw rod is arranged at the end of the cantilever and is welded and fixed with a lower chord steel bar of a bottom die of a steel bar truss floor support plate, 2 rows of juxtaposed seamless steel pipes (the pipe diameter is 48mm, the wall thickness is 3.5 mm) are arranged on the top surface of the 16# I-steel at the upper part of a cast-in-place part, and butterfly buckle and double nuts are adopted for adjustment and fixation; and the fixed end is used for welding two phi 16 steel bars on the top plate on the inner side of the steel beam as an I-shaped steel support, welding one phi 16 steel bar temporary support on the top plate on the outer side of the steel beam, and fully welding the steel bars on the top surface of the steel beam and the I-shaped steel. And welding and fixing the 16# I-steel on the steel support, wherein the height of the I-steel is 15cm higher than that of the cast-in-situ bridge deck slab.
Claims (6)
1. The utility model provides a cantilever arm suspends strutting arrangement that is used for cast-in-place decking of steel-concrete composite beam to construct which characterized in that: including being located cantilever (1) that the horizontal bridge was arranged on the boundary beam and being located steel-concrete composite beam (2) roof beam limit both sides cantilever steel bar truss building carrier plate (3), steel bar truss building carrier plate (3) are located the below of cantilever (1), the one end of cantilever (1) is through drawing wire pole (4) and steel bar truss building carrier plate (3) fixed connection, be equipped with two rows of seamless steel pipes (5) between drawing wire pole (4) and cantilever (1), the other end bottom of cantilever (1) is equipped with steel shotcrete (6), the one end and the cantilever (1) of steel shotcrete (6) are connected, the other end is connected with steel-concrete composite beam (2) inboard roof.
2. The cantilever suspension supporting device for the construction of the cast-in-place bridge deck of the steel-concrete composite beam as claimed in claim 1, wherein: the cantilever (1) is made of I-shaped steel.
3. The cantilever suspension supporting device for the construction of the cast-in-place bridge deck of the steel-concrete composite beam as claimed in claim 1, wherein: steel bar truss floor carrier plate (3) are including galvanized steel sheet (7), be equipped with a plurality of web members (8) on galvanized steel sheet (7), connect through last chord steel (9) between the top of per two web members (8), bottom one side of web member (8) is equipped with last chord steel (10).
4. The cantilever suspension supporting device for the construction of the cast-in-place bridge deck of the steel-concrete composite beam as claimed in claim 3, wherein: the tension rod (4) is fixedly connected with a lower chord steel bar (10) of the steel bar truss floor bearing plate (3).
5. The cantilever suspension supporting device for the construction of the cast-in-place bridge deck of the steel-concrete composite beam as claimed in claim 1, wherein: the number of the steel supports (6) is two.
6. The cantilever suspension supporting device for the construction of the cast-in-place bridge deck of the steel-concrete composite beam as claimed in claim 1, wherein: the steel-concrete composite beam is characterized in that a temporary steel support (11) is arranged on a top plate at the outer side of one end, close to the steel bar truss floor bearing plate (3), of the steel-concrete composite beam (2), one end of the temporary steel support (11) is connected with a top plate at the outer side of the steel-concrete composite beam (2), and the other end of the temporary steel support is connected with the cantilever (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222732027.2U CN218596930U (en) | 2022-10-18 | 2022-10-18 | Cantilever arm suspension supporting device for steel-concrete composite beam cast-in-place bridge deck construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222732027.2U CN218596930U (en) | 2022-10-18 | 2022-10-18 | Cantilever arm suspension supporting device for steel-concrete composite beam cast-in-place bridge deck construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218596930U true CN218596930U (en) | 2023-03-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222732027.2U Active CN218596930U (en) | 2022-10-18 | 2022-10-18 | Cantilever arm suspension supporting device for steel-concrete composite beam cast-in-place bridge deck construction |
Country Status (1)
| Country | Link |
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| CN (1) | CN218596930U (en) |
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2022
- 2022-10-18 CN CN202222732027.2U patent/CN218596930U/en active Active
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