阅读说明：本技术 一种侧挂式全悬空盖梁组合支架平台及其安装方法 (Side-hanging type full-suspension cover beam combined support platform and mounting method thereof ) 是由 付永亮 王为凯 蒋华君 孟泽祥 陈天华 章伟智 王丹 徐兆亮 许佳文 于 2021-09-15 设计创作，主要内容包括：本发明涉及建设工程施工设备技术领域,具体涉及一种侧挂式全悬空盖梁组合支架平台及其安装方法,包括有盖梁底模板、槽钢、转换梁、钢立柱支撑体系、钢桁架和两组预埋螺栓；两组预埋螺栓分别设置在待建盖梁主体的两侧；钢桁架的两端分别与预埋螺栓相连接；钢立柱支撑体系与钢桁架连接；转换梁设置在钢立柱支撑体系上方,并分别与两侧的垂直钢立柱及斜撑钢立柱的上端相连接,槽钢设置在两个转换梁的顶部之间；盖梁底模板铺设在槽钢的上方。本发明的各个部件可以分块现场拼装,安装快速便捷、回收率高；可以最大限度的减少桥梁施工对场地作业空间及施工进度影响。(The invention relates to the technical field of construction engineering construction equipment, in particular to a side-hung type full-suspended cover beam combined support platform and an installation method thereof, wherein the side-hung type full-suspended cover beam combined support platform comprises a cover beam bottom template, channel steel, a transfer beam, a steel upright post supporting system, a steel truss and two groups of embedded bolts; two groups of embedded bolts are respectively arranged on two sides of the main body of the bent cap to be built; two ends of the steel truss are respectively connected with the embedded bolts; the steel upright post supporting system is connected with the steel truss; the conversion beams are arranged above the steel upright post supporting system and are respectively connected with the upper ends of the vertical steel upright posts and the upper ends of the inclined strut steel upright posts on the two sides, and the channel steel is arranged between the tops of the two conversion beams; the bent cap bottom template is laid above the channel steel. Each part of the invention can be assembled on site in blocks, the installation is rapid and convenient, and the recovery rate is high; the influence of bridge construction on site operation space and construction progress can be reduced to the maximum extent.)

1. The utility model provides a side-hung type full-suspension bent cap sectional shelf platform which characterized in that includes:

the steel truss structure comprises a cover beam bottom template (1), channel steel (2), a transfer beam (3), a steel upright post support system (4), a steel truss (5) and two groups of embedded bolts (6);

two groups of embedded bolts (6) are respectively arranged on two sides of a main body (8) of the bent cap to be built; the positions of the two groups of embedded bolts (6) are corresponding;

two ends of the steel truss (5) are respectively connected with the embedded bolts (6); a plurality of groups of connecting holes are also formed in the steel truss (5);

the steel upright post supporting system (4) comprises a vertical steel upright post (401) and an inclined strut steel upright post (402); connecting bolts (404) are arranged at the bottoms of the vertical steel upright (401) and the inclined strut steel upright (402), and the connecting bolts (404) are matched with connecting holes in the steel truss (5); the lower end of the vertical steel upright column (401) is vertically connected with the steel truss (5) through a connecting bolt (404), and the lower end of the diagonal bracing steel upright column (402) is connected with a diagonal bracing of the steel truss (5) through a connecting bolt (404);

the conversion beams (3) are arranged above the steel upright post supporting system (4) and are respectively connected with the upper ends of the vertical steel upright posts (401) and the upper ends of the inclined strut steel upright posts (402) on the two sides, and the conversion beams (3) are respectively arranged on the two sides of the main body (8) of the capping beam to be built;

the channel steel (2) is arranged between the tops of the two conversion beams (3) at equal intervals;

the bent cap bottom formwork (1) is laid above the channel steel (2).

2. The side-hung type full-suspended cover beam combined support platform as claimed in claim 1, wherein the steel upright support system (4) is further provided with steel upright stiffening plates (403), and the steel upright stiffening plates (403) are respectively arranged in the middle of the vertical steel upright (401) and the diagonal steel upright (402).

3. The side-hung type full-suspended cover beam combined support platform according to claim 1, further comprising a cross brace system (7), wherein the cross brace system (7) comprises a plurality of groups of steel cross braces (701) and cross steel cross braces (702), and the steel cross braces (701) and the cross steel cross braces (702) are both fixedly arranged between the two transfer beams (3).

4. The side-hung type full-suspended cover beam combined bracket platform as claimed in claim 1, wherein the connecting ends of the steel truss (5) and the cover beam main body (8) to be built are all reinforced by adopting reinforced steel plates to perform bracing reinforcement on each right angle in the steel truss (5).

5. The side-hung type full-suspended cover beam combined bracket platform as claimed in claim 2, wherein the steel upright post supporting system (4) adopts a rectangular square column of 200mm x 200mm, the conversion beam (3) is a double-spliced combined I-steel, the steel upright post stiffening plate (403) is a steel plate of 500mm x 300mm, and the laying interval of the channel steel (2) is 200 mm.

6. The side-hung type full-suspended cover beam combined support platform as claimed in claim 1, wherein the transfer beam (3), the steel column support system (4), the steel truss (5) and the embedded bolts (6) are connected in a bolt anchoring manner.

7. The method for installing a side-hung type full-suspended cover beam combined support platform according to claim 1, is characterized by comprising the following steps:

1) binding the steel bars of the pier column body of the main body (8) of the coping to be built, embedding a lower connecting bolt (404) according to the designed position, and pouring the pier column of the main body (8) of the coping to be built;

2) preparing frameworks such as a transfer beam (3), a steel column support system (4) and a steel truss (5) in place, installing a single-side steel truss (5) to the position of a pre-embedded bolt (6) on a main body (8) of the capping beam to be built, adjusting the position and the verticality of the steel truss (5), connecting the steel truss (5) with the main body (8) of the capping beam to be built through the pre-embedded bolt (6), and then connecting the other-side steel truss (5) in the same way;

3) respectively reinforcing the middle parts of the vertical steel upright columns (401) and the inclined strut steel upright columns (402) by using steel upright column stiffening plates (403);

4) the vertical steel columns (401) and the diagonal steel columns (402) are symmetrically installed one by one, the vertical steel columns (401) and the diagonal steel columns (402) are fixedly connected with the steel truss (5) through connecting bolts (404), and supporting columns are arranged between the vertical steel columns (401) on two sides and between the diagonal steel columns (402) on two sides for reinforcement;

5) the method comprises the following steps that conversion beams (3) are transversely installed along a main body (8) of the capping beam to be built, the conversion beams (3) on two sides are respectively connected and fixed with steel upright post supporting systems (4), and a plurality of steel cross braces (701) and a plurality of cross steel cross braces (702) are respectively arranged between the conversion beams (3) on two sides of the main body (8) of the capping beam to be built for connection and fixation;

6) and finally, laying channel steel (2) on the top of the conversion beam (3) as a template support, and laying a capping beam bottom template (1) on the upper part of the channel steel (2), thereby completing the installation of the side-hung type full-suspension capping beam combined support platform structure.

Technical Field

The invention relates to the technical field of construction engineering construction equipment, in particular to a side-hung type full-suspension cover beam combined support platform and an installation method thereof.

Background

With the continuous development and progress of bridge technology, the types of bridges are also diversified. The capping beam (hat beam) is used as a main component of bridge engineering, is a main stress point at the top end of the bridge pier column and plays a main supporting role. In the construction process of modern bridges, cover-pouring support technology types are various, functions and flows of each technology are different, and the cast-in-place cover beam technology is a construction technology method which is commonly used in the construction process of bridges. The construction quality of the cast-in-place bent cap needs to be guaranteed under the influence of various factors, and in the specific construction process, the construction quality, safety and resource saving can be guaranteed only by selecting a pouring support which is high in rigidity and good in stress performance and solves materials, so that the scheme of the support is directly related to the quality safety problem of the whole project. According to the existing support form of the bent cap, methods such as a through bar method, a steel pipe support method, a bowl buckle support method and the like are adopted, and a full support process is mainly adopted in a construction method, so that the construction method has certain limitations, long process duration and high production cost.

As a cast-in-place concrete structure, the traditional bowl-buckle type and disc-buckle type full-framing process is increasingly restricted and challenged, and specifically comprises the following steps:

1. when the full framing system is constructed, the whole capping beam projection range does not allow vehicles to pass. For the existing road reconstruction project, the process increases the difficulty of temporary traffic protection (the more tense the peripheral land resources are, the larger the limit degree is); for new construction, the process requires additional construction of temporary sidewalks, the area is often the arrangement range of rain and sewage pipelines, and the temporary sidewalks need to be discarded in the later period, so that the construction cost is increased, and the investment of stone and machinery is large, so that the process does not meet the requirements of energy conservation, environmental protection and green construction.

2. The full framing system needs reliable foundation treatment, for soft soil areas, the depth of the foundation treatment is usually 1.5-2.0 times of the height of a cushion layer of a newly-built road, a 20cm concrete cushion layer needs to be poured on the surface layer, the cushion layer is completely chiseled after construction is completed, temporary consumption of concrete and extra investment of stone are increased, and meanwhile, a large amount of precious social resources are consumed;

3. the overall stability of full hall support system receives the periphery, and when the peripheral heavy vehicle of support system frequently passed through, the bent cap of newly pouring very easily received the disturbance and appeared the crack, constitutes great hidden danger to the overhead operation in later stage.

In patent No. 201220308206.7, patent name "a capping beam bearing frame without a full support", this patent provides a capping beam bearing frame without a full support, using steel pipes and i-shaped steel to make girders, using steel pipes to make bearing uprights, the girders and uprights being connected by high-strength bolts; the two trusses are connected through the fine-rolled thread steel and the channel steel, and the trusses and the vertical rods are tightly held with the reinforced concrete stand columns through the channel steel. This patent does not need the bent cap spandrel girder of full hall support as one kind, need not the ground and consolidates the processing, and the pole setting is in small quantity moreover, and ground occupation space is little, adopts whole processing. But still can't solve the construction scheme loaded down with trivial details to there is certain major structure potential safety hazard.

In conclusion, in order to solve the problems of the traditional bowl-buckled type full hall support technology, such as the influence on traffic passing, high resource consumption, high construction cost, hidden danger of a main structure and the like, a novel bent cap support platform needs to be developed.

Disclosure of Invention

The invention aims to provide a side-hanging type full-suspension cover beam combined support platform and an installation method thereof, aiming at the defects in the prior art. The combined support platform is simple to assemble and convenient to install, and is beneficial to resource saving and standardized construction.

In order to solve the technical problems, the invention adopts the following technical scheme:

a side-hung type full-suspended cover beam combined support platform comprises:

the steel truss structure comprises a cover beam bottom template, channel steel, a conversion beam, a steel upright post supporting system, a steel truss and two groups of embedded bolts;

two groups of embedded bolts are respectively arranged on two sides of the main body of the bent cap to be built; the positions of the two groups of embedded bolts correspond to each other;

two ends of the steel truss are respectively connected with the embedded bolts; the steel truss is also provided with a plurality of groups of connecting holes;

the steel upright post supporting system comprises a vertical steel upright post and an inclined strut steel upright post; connecting bolts are arranged at the bottoms of the vertical steel upright columns and the diagonal bracing steel upright columns and are matched with the connecting holes in the steel truss; the lower end of the vertical steel upright post is vertically connected with the steel truss through a connecting bolt, and the lower end of the diagonal bracing steel upright post is connected with a diagonal bracing of the steel truss through a connecting bolt;

the conversion beams are arranged above the steel upright post supporting system and are respectively connected with the upper ends of the vertical steel upright posts and the upper ends of the inclined strut steel upright posts on the two sides, and the conversion beams are respectively arranged on the two sides of the main body of the capping beam to be built;

the channel steel is arranged between the tops of the two conversion beams at equal intervals;

the bent cap bottom template is laid above the channel steel.

Preferably, the steel upright post support system is further provided with a steel upright post stiffening plate, and the steel upright post stiffening plate is respectively arranged in the middle of the vertical steel upright post and the diagonal bracing steel upright post.

Preferably, still be provided with the stull system, the stull system is including multiunit steel stull and cross steel stull, steel stull and cross steel stull are all fixed to be set up between two conversion roof beams.

Preferably, the steel truss and the connecting end of the main body of the capping beam to be built are reinforced by diagonal bracing of each right angle in the steel truss through a reinforcing steel plate.

Preferably, the steel upright post supporting system adopts a 200mm × 200mm square column, the conversion beam is double-spliced combined I-shaped steel, the steel upright post stiffening plate is a 500mm × 300mm steel plate, and the laying interval of the channel steel is 200 mm.

Preferably, the transfer beam, the steel upright post support system, the steel truss and the embedded bolts are connected in a bolt anchoring mode.

A method for installing a side-hung type full-suspended cover beam combined support platform comprises the following steps:

1) binding the steel bars of the pier column body of the coping main body 8 to be built, embedding a lower connecting bolt according to the designed position, and pouring the pier column of the coping main body to be built;

2) preparing frameworks such as a transfer beam, a steel upright post supporting system, a steel truss and the like in place, installing a single-side steel truss to the position of an embedded bolt on a main body of the capping beam to be built, adjusting the position and the verticality of the steel truss, connecting the steel truss with the main body of the capping beam to be built through the embedded bolt, and then connecting the steel truss on the other side in the same way;

3) respectively reinforcing the middle parts of the vertical steel upright posts and the diagonal steel upright posts by using steel upright post stiffening plates;

4) symmetrically and one by one installing vertical steel upright columns and diagonal bracing steel upright columns, connecting and fixing the vertical steel upright columns and the diagonal bracing steel upright columns with the steel truss by adopting connecting bolts, and arranging support columns between the vertical steel upright columns on two sides and between the diagonal bracing steel upright columns on two sides for reinforcement;

5) the method comprises the following steps that conversion beams are transversely installed along a main body of the capping beam to be built, the conversion beams on two sides are respectively connected and fixed with a steel upright post supporting system, and a plurality of steel cross braces and a plurality of cross steel cross braces are respectively arranged between the conversion beams on two sides of the main body of the capping beam to be built for connection and fixation;

6) and finally, channel steel is laid on the top of the conversion beam to serve as a template support, and a capping beam bottom template is laid on the upper portion of the channel steel, so that the installation of the side-hung type full-suspension capping beam combined support platform structure is completed.

Compared with the prior art, the invention has the following advantages:

(1) the steel truss, the steel upright post supporting system, the transfer beam and other combined support systems are connected through the embedded bolts to form the side-hung assembly type support platform for bridge bent cap construction, a safe and stable construction operation platform can be provided for a bridge bent cap to be constructed above a high pier stud, and complicated procedures, time cost and other process optimization for erecting a bent cap scaffold support can be reduced.

(2) The invention has the advantages of reasonable structural design, large bearing capacity, good overall stability, convenient and quick installation and removal, and is beneficial to improving the working efficiency and accelerating the construction progress.

(3) The material used in the invention is a general material for construction sites, and part of the material can utilize waste steel, so that secondary development and application of the waste steel are realized, and energy conservation and emission reduction are realized.

Drawings

FIG. 1 is a schematic structural view of the present invention;

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

FIG. 3 is a three-dimensional view of the structure of the present invention;

FIG. 4 is a detailed construction diagram of a steel truss;

FIG. 5 is a detailed view of a transfer beam connection system;

FIG. 6 is a detailed structural diagram of the connection between the steel upright support system and the steel truss;

in the figure: 1. the capping beam comprises a capping beam bottom template, 2, channel steel, 3, a conversion beam, 4, a steel column supporting system, 401, vertical steel columns, 402, diagonal bracing steel columns, 403, steel column stiffening plates, 404, connecting bolts, 5, prefabricated steel trusses, 6, embedded bolts, 7, a cross brace system, 701, steel cross braces, 702, cross steel cross braces, 8 and a capping beam main body to be built.

Detailed Description

The invention is further described with reference to the following drawings and specific examples, which are not intended to be limiting.

Example one

Referring to fig. 1 to 6, a side-hung type fully suspended cover beam combined support platform comprises: the steel column structure comprises a cover beam bottom template 1, channel steel 2, a transfer beam 3, a steel column support system 4, a steel truss 5 and two groups of embedded bolts 6; two groups of embedded bolts 6 are respectively arranged on two sides of a main body 8 of the bent cap to be built; and the positions of the two groups of embedded bolts 6 are corresponding; two ends of the steel truss 5 are respectively connected with the embedded bolts 6; the steel truss 5 is also provided with a plurality of groups of connecting holes; the steel upright post support system 4 comprises a vertical steel upright post 401 and an inclined strut steel upright post 402; the bottom parts of the vertical steel upright 401 and the inclined strut steel upright 402 are respectively provided with a connecting bolt 404, and the connecting bolts 404 are matched with connecting holes on the steel truss 5; the lower end of the vertical steel upright column 401 is vertically connected with the steel truss 5 through a connecting bolt 404, and the lower end of the diagonal bracing steel upright column 402 is connected with the diagonal bracing of the steel truss 5 through a connecting bolt 404; the conversion beam 3 is arranged above the steel upright post support system 4 and is respectively connected with the upper ends of the vertical steel upright posts 401 and the inclined strut steel upright posts 402 at two sides, and the conversion beam 3 is respectively arranged at two sides of the main body 8 of the capping beam to be built; the channel steel 2 is arranged between the tops of the two conversion beams 3 at equal intervals; the bent cap bottom formwork 1 is laid above the channel steel 2.

Example two

As a preferred embodiment of the present invention, the present embodiment optimizes the structure on the basis of the first embodiment, specifically:

the steel column support system 4 is further provided with column steel stiffening plates 403, the steel column steel stiffening plates 403 are respectively arranged in the middle of the vertical steel columns 401 and the diagonal steel columns 402, and the steel column support system 7 is further provided with a cross brace system 7, the cross brace system 7 comprises a plurality of groups of steel cross braces 701 and cross steel cross braces 702, and the steel cross braces 701 and the cross steel cross braces 702 are both fixedly arranged between the two conversion beams 3.

Compared with the first embodiment, the structural rigidity of the steel upright post support system 4 is improved, and the arrangement is favorable for further enhancing the overall stability, rigidity and bearing capacity of the side-hung type fabricated bent cap support platform; this embodiment has increased the rigidity of steel stand support system 4, has promoted the bearing capacity of steel stand support system 4 to top I-steel and later stage construction load effectively.

EXAMPLE III

As a preferred embodiment of the present invention, the embodiment optimizes the integrity of the double-spliced i-beam transfer beam on the basis of the first embodiment, specifically:

the steel truss 5 and the connecting end of the capping beam main body 8 to be built are reinforced by diagonal bracing of each right angle in the steel truss 5 through a reinforcing steel plate. The steel upright post supporting system 4 adopts a square column with the thickness of 200mm multiplied by 200mm (the wall thickness is 10-16 mm), the conversion beam 3 is double-spliced combined I-shaped steel, and the steel upright post stiffening plate 403 is a rectangular steel plate with the thickness of 500mm multiplied by 300mm (the thickness is 10-16 mm). The transfer beam 3, the steel upright post supporting system 4, the steel truss 5 and the embedded bolts 6 are connected in a bolt anchoring mode.

When the method is applied, the construction sequence is from bottom to top, the installation is carried out layer by layer, the steel truss 5 is firstly installed on a main body 8 of the capping beam to be built through the embedded bolts 6, then the steel upright post supporting system 4 is installed, and finally the transfer beam 3, the channel steel 2 and the capping beam bottom formwork 1 are installed. The installation sequence is as follows: two groups of embedded bolts 6 are used for lofting an embedded part → a main body 8 of the capping beam to be built is constructed and maintained to the designed strength → the prefabricated steel truss 5 is hoisted to the corresponding position → the prefabricated steel truss 5 is connected to the main body 8 of the capping beam to be built through the embedded bolts 6 → the steel upright post supporting system 4 is hoisted to the prefabricated steel truss 5 for connection and fixation → the double-spliced I-shaped steel conversion beam 3 is hoisted to the upper part of the steel upright post supporting system 4 for connection and fixation → the channel steel 2 is laid on the upper part of the conversion beam 3 → the capping beam bottom template 1 is laid on the channel steel 2 for forming the side-hung type full-suspension capping beam combined support platform.

The specific installation method is as follows:

1) binding the steel bars of the pier column body of the main body 8 of the coping to be built, embedding positioning steel plates, nuts and other parts of the lower connecting bolt 404 at the designed position, pouring the pier column of the main body 8 of the coping to be built, and maintaining to the designed strength;

2) a truck crane is used for matching a cover beam combined support platform to be in place, frameworks such as a transfer beam 3, a steel upright post supporting system 4 and a steel truss 5 are ready to be in place, the truck crane is used for hoisting a single-side steel truss 5 to a position of a pre-buried bolt 6 on a cover beam main body 8 to be built to be in place, after the position and the verticality are finely adjusted, the steel truss 5 is connected with the cover beam main body 8 to be built through the pre-buried bolt 6, and then the steel truss 5 on the other side is hoisted and connected in the same way for construction;

3) respectively reinforcing the middle parts of the vertical steel upright column 401 and the diagonal steel upright column 402 by using a steel upright column stiffening plate 403;

4) the vertical steel columns 401 and the diagonal steel columns 402 are symmetrically and one by one installed by matching of an automobile crane, the vertical steel columns 401 and the diagonal steel columns 402 are fixedly connected with the steel truss 5 through connecting bolts 404, and supporting columns are arranged between the vertical steel columns 401 on two sides and between the diagonal steel columns 402 on two sides for reinforcement;

5) the method comprises the following steps that (1) conversion beams 3 are arranged along the transverse direction of a main body 8 of the capping beam to be built by matching with an automobile crane, the conversion beams 3 on the two sides are respectively connected and fixed with steel upright post supporting systems 4, and a plurality of steel wales 701 and a plurality of cross-shaped steel wales 702 are respectively arranged between the conversion beams 3 on the two sides of the main body 8 of the capping beam to be built for connection and fixation;

6) and finally, laying channel steel 2 on the top of the conversion beam 3 as a template support, and laying a capping beam bottom template 1 on the upper part of the channel steel 2, thereby completing the installation of the platform structure of the side-hung type full-suspension capping beam combined support.

According to the invention, a side-hung type full-suspension cover beam combined support platform for bridge cover beam construction is formed by combined support systems such as a cover beam bottom template 1, channel steel 2, a transfer beam 3, a steel upright post support system 4, a steel truss 5 and embedded bolts 6. The components of the invention can be assembled on site in blocks, and the installation is rapid and convenient, and the recovery rate is high. The construction platform can provide a safe and stable construction operation platform for the bridge capping beam to be constructed above, and can reduce the influence of bridge construction on site operation space and construction progress to the maximum extent.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.