CN113089499B - Assembled combined support platform for bridge bent cap construction and mounting method thereof - Google Patents
Assembled combined support platform for bridge bent cap construction and mounting method thereof Download PDFInfo
- Publication number
- CN113089499B CN113089499B CN202110526349.9A CN202110526349A CN113089499B CN 113089499 B CN113089499 B CN 113089499B CN 202110526349 A CN202110526349 A CN 202110526349A CN 113089499 B CN113089499 B CN 113089499B
- Authority
- CN
- China
- Prior art keywords
- steel
- sleeve
- reinforced concrete
- concrete foundation
- upper sleeve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000010276 construction Methods 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims abstract description 14
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 213
- 239000010959 steel Substances 0.000 claims abstract description 213
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 61
- 238000006243 chemical reaction Methods 0.000 claims abstract description 26
- 238000009434 installation Methods 0.000 claims abstract description 8
- 239000010410 layer Substances 0.000 claims description 9
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 5
- 238000004873 anchoring Methods 0.000 claims description 4
- 238000013461 design Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000004570 mortar (masonry) Substances 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 239000011241 protective layer Substances 0.000 claims description 3
- 239000002023 wood Substances 0.000 claims description 3
- 239000011120 plywood Substances 0.000 claims description 2
- 239000002131 composite material Substances 0.000 claims 4
- 239000002699 waste material Substances 0.000 abstract description 7
- 230000009286 beneficial effect Effects 0.000 abstract description 4
- 238000001125 extrusion Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 description 9
- 238000011065 in-situ storage Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 238000009432 framing Methods 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses an assembled combined support platform for bridge bent cap construction and an installation method thereof, and relates to the technical field of bridge construction equipment, wherein the assembled combined support platform comprises a reinforced concrete foundation, a lower sleeve system, a steel upright post and parallel connection system, a profile steel group longitudinal beam, an upper sleeve system, a profile steel group large beam and a conversion beam, and the reinforced concrete foundation, the lower sleeve system, the steel upright post and parallel connection system, the profile steel group longitudinal beam and the upper sleeve system are in socket joint and are fixed by extrusion through clamping and fastening devices arranged on the upper sleeve and the lower sleeve; the invention not only provides a safe and stable construction operation platform for the bridge bent cap to be constructed above, but also provides a door opening for the road on the ground below, and reduces the influence of bridge construction on the current road traffic to the maximum extent, so that the invention has good assemblability and detachability, can be repeatedly used in a plurality of identical or similar projects, is beneficial to reducing resource waste and reduces construction cost.
Description
Technical Field
The invention relates to the technical field of bridge construction equipment, in particular to an assembled combined support platform for bridge bent cap construction and an installation method thereof.
Background
The bridge pier bent cap of the prior urban bridge mostly adopts a door opening bracket or a full framing system cast-in-situ construction process, but the full framing construction process cannot be adopted for the bent cap above the current road way to meet the traffic requirement of vehicles, and the beam column type bracket system cast-in-situ reinforced concrete strip foundation, welded large steel pipe, profile steel group longitudinal beam and disc buckle bracket is generally adopted according to the prior construction technology, although the process can meet the casting construction requirement of the door opening and the bent cap of the current city bridge, the strip foundation adopts the cast-in-situ process, the steel upright post and the strip foundation are welded and fixed through the embedded steel plates, and the welding process is adopted between the steel upright post and the parallel connection and between the steel upright post and the upper longitudinal beam, so that the whole bracket system is from the foundation to the upper beam and column system, the assembly property and the detachability are lacked, the single-time investment is realized, the turnover usability of a plurality of projects is poor, the material and the resource are not facilitated, and the periodic use cost is reduced, so that the construction process is further innovated and perfected in the aspects of assembly property, turnover property, resource conservation and green construction.
Disclosure of Invention
The invention aims at overcoming the defects of the prior art and provides an assembled combined support platform for bridge bent cap construction and an installation method thereof.
The technical scheme of the invention is as follows: the assembled combined support platform for bridge bent cap construction comprises a reinforced concrete foundation, a lower sleeve system, a steel upright post and parallel connection system, a profile steel group longitudinal beam, an upper sleeve system, a profile steel group large cross beam and a conversion beam, wherein the reinforced concrete foundation, the lower sleeve system, the steel upright post and parallel connection system, the profile steel group longitudinal beam and the upper sleeve system are in socket joint, and are extruded and fixed through clamping and fastening devices arranged on the upper sleeve and the lower sleeve;
The reinforced concrete foundation and the sleeve-down system comprise a reinforced concrete foundation, embedded steel plates, a sleeve-down pipe and steel bar hanging rings, wherein the two embedded steel plates are respectively arranged at two ends of the reinforced concrete foundation, a plurality of anchoring steel bars are arranged at the bottom of an embedded tube plate, the sleeve-down pipe is fixed on the embedded steel plates, and a plurality of clamping and fastening devices are radially arranged on the sleeve-down pipe; the plurality of steel bar hanging rings are arranged on a reinforced concrete foundation;
the steel upright posts and the parallel system comprise a plurality of steel upright posts and connecting rods, wherein the steel upright posts are fixedly arranged in a lower sleeve pipe, and are assembled into two groups of side upright posts and a middle upright post; the two groups of side stand columns and the middle stand column form a through door opening respectively, and the adjacent steel stand columns are fixedly connected through connecting rod pieces;
The profile steel group longitudinal beam and upper sleeve system comprises profile steel group longitudinal beams, an upper sleeve cover plate and an upper sleeve, wherein the two groups of upper sleeve cover plates are respectively fixed at two ends of the bottom of the profile steel group longitudinal beams, the upper sleeve is fixed at the bottom of the upper sleeve cover plate, and a plurality of clamping and fastening devices are radially arranged on the upper sleeve; the upper sleeve spacing on the single profile steel group longitudinal beam is equal to the lower sleeve spacing on the single reinforced concrete foundation; the upper sleeve is fixedly sleeved at the upper end of the steel upright post;
The steel section large beam and the conversion beam comprise a plurality of steel section large beams and a plurality of conversion beams, the steel section large beams are arranged above the steel section longitudinal beams and the upper sleeve system along the transverse bridge direction, and the conversion beams are uniformly arranged on the steel section large beams along the longitudinal bridge direction.
Preferably, the reinforced concrete foundation is dumbbell-shaped, a plurality of layers of reinforcing steel meshes are arranged in the reinforced concrete foundation, the length of the reinforced concrete foundation is 600-700cm, the length of the middle part is 250-350cm, the thickness of the reinforced concrete foundation is 80-100cm, the width of the middle part is 80-100cm, and the widths of two ends of the reinforced concrete foundation are 150-200cm; the diameter of the steel bar hanging ring is 20-25mm.
Preferably, the diameter of the lower sleeve is 72-75mm, the wall thickness is 10-12mm, and the height is 50-55mm, 8-12 triangular stiffening plates are arranged between the outer wall of the lower sleeve and the embedded steel plate, and the thickness of the triangular stiffening plates is 10-12mm; three layers of clamping and fastening devices are radially arranged on the lower sleeve, and six sets of clamping and fastening devices are arranged on each layer.
Preferably, the connecting rod piece is channel steel, and the connecting rod piece is detachably connected with the steel upright post and the connecting rod piece through splice plates.
Preferably, the profile steel assembly longitudinal beam is double-spliced or three-spliced I-steel, a plurality of middle stiffening plates are arranged on the middle and outer sides of the profile steel assembly longitudinal beam, and a plurality of beam end stiffening plates are respectively arranged on the outer sides of two ends of the profile steel assembly longitudinal beam; the upper sleeve structure is the same as the lower sleeve structure.
Preferably, the clamping and fastening device comprises a screw and a nut, the nut being fixed on the outer wall of the sleeve, the screw being in threaded connection with the nut and penetrating the wall of the sleeve.
Preferably, the large beam of the profile steel group is an H-shaped steel group large beam, and 4-8 large beams are arranged; the conversion beam is I-steel.
The installation method of the assembled combined support platform for bridge bent cap construction comprises the following steps:
(1) Binding steel bars of the dumbbell-shaped reinforced concrete foundation, supporting templates, installing lower sleeve system components such as pre-buried steel plates, lower sleeves and the like according to designed positions, pouring reinforced concrete foundation groups in a complete set, and simultaneously processing and manufacturing steel upright posts, parallel system, steel group longitudinal beams, upper sleeve system and other steel structure components in a complete set;
(2) According to the size and the position of the bridge bent cap to be poured and the bridge pier poured, the current road lane is arranged, and the plane positions of the reinforced concrete foundation and the sleeve-down system are lofted;
(3) Leveling the original pavement where the reinforced concrete foundation and the sleeve-down system are placed by using mortar so as to ensure the top surface level of a group of four dumbbell-shaped reinforced concrete foundations;
(4) Firstly, a crane is used for matching and hoisting a reinforced concrete foundation and a lower sleeve system to be in place, two steel columns are assembled on the ground synchronously in a piece mode, the steel columns are connected in parallel in a piece mode, then the single steel columns are hoisted by the crane and are connected in parallel in the longitudinal mode, the lower sleeve is inserted into the lower sleeve, after the position and the verticality are fine-tuned, the steel columns are fixed with the lower sleeve by using a clamping and fastening device on the lower sleeve, and then the transverse parallel connection between the two middle steel columns is continuously installed;
(5) Hoisting the steel assembly longitudinal beams and the upper sleeve system by using a crane in a matching way, sleeving the upper sleeve on the corresponding steel upright post along the longitudinal bridge from top to bottom, and fixing the steel upright post and the upper sleeve by using a clamping and fastening device on the upper sleeve after fine adjustment;
(6) The large cross beams of the profile steel groups are symmetrically and piece by matching with a crane, and spot welding is fixed between the large cross beams of the profile steel groups and the longitudinal beams of the profile steel groups;
(7) According to the design position, installing I-steel conversion beams one by one along the transverse bridge, and finally paving a wood plywood protective layer on the top of the I-steel conversion beams, thereby completing the installation of the assembled combined support platform;
(8) And finally, erecting a bowl buckle bracket, a reinforced door type bracket or a plate buckle bracket and a template system of the bridge bent cap on the assembled combined bracket platform.
Compared with the prior art, the invention has the following advantages:
(1) The prefabricated reinforced concrete foundation is matched with a pre-embedded steel plate, a triangular stiffening plate, a lower sleeve system with a clamping device, an assembled steel upright post and parallel connection system, a profile steel group longitudinal beam, an upper sleeve with the clamping device, a profile steel group large cross beam, an I-steel conversion beam and other combined support systems to form an assembled support platform for bridge bent cap construction, so that a safe and stable construction operation platform can be provided for the bridge bent cap to be constructed above, a door opening for a road on the ground below can be provided, the influence of bridge construction on the current road traffic can be reduced to the greatest extent, the invention has good assemblability and detachability, can be repeatedly used on a plurality of same or similar projects, is beneficial to reducing resource waste and construction cost;
(2) The device has reasonable structural design, large bearing capacity, good overall stability, convenient and quick installation and dismantling, is beneficial to improving the work efficiency and accelerating the construction progress;
(3) The dumbbell type reinforced concrete foundation, the steel upright posts, the steel assembly longitudinal beams and the upper sleeve system transverse bridge of the device are adjustable, so that the clearance size of a train pass door opening constructed below can be adjusted at any time according to the train pass requirement, and the influence on the current traffic can be reduced to a greater extent;
(4) The materials used in the invention are universal materials for construction sites, and part of the materials can utilize waste steel materials to realize secondary development and application of waste materials, thereby realizing green construction, energy conservation and emission reduction.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic structural view of a reinforced concrete foundation and a casing system;
FIG. 3 is a schematic structural view of a steel stud and parallel system;
FIG. 4 is a schematic structural view of a profile steel set stringer and upper sleeve system;
FIG. 5 is a schematic view of the structure of a large cross beam and a transfer beam of a profile steel set;
FIG. 6 is a schematic structural diagram of a casing-down system;
FIG. 7 is a detailed structural schematic of a parallel system.
In the figure: 1. the reinforced concrete foundation and the lower sleeve system are 101, the reinforced concrete foundation, 102, an embedded steel plate, 103, a lower sleeve, 104, a steel lifting ring, 105, an anchoring steel bar, 106, a clamping and fastening device, 107, a triangular stiffening plate, 2, a steel upright and parallel system, 201, a steel upright, 202, a connecting rod piece, 203, a splice plate, 3, a steel group longitudinal beam and upper sleeve system, 301, a steel group longitudinal beam, 302, an upper sleeve cover plate, 303, an upper sleeve, 304, a midspan stiffening plate, 305, a beam end stiffening plate, 4, a steel group large beam and a conversion beam, 401, a steel group large beam, 402, a conversion beam, 5 and a through door opening.
Detailed Description
The invention is further illustrated by the following examples in connection with the accompanying drawings.
Example 1
Referring to fig. 1, an assembled combined bracket platform for bridge bent cap construction comprises a reinforced concrete foundation and lower sleeve system 1, a steel upright post and parallel connection system 2, a steel section group longitudinal beam and upper sleeve system 3, and a steel section group large cross beam and conversion beam 4, wherein the reinforced concrete foundation and lower sleeve system 1 is in socket joint with the steel upright post and parallel connection system 2, and the steel upright post and parallel connection system 2 is in socket joint with the steel section group longitudinal beam and upper sleeve system 3, and is extruded and fixed through a clamping and fastening device 106 arranged on an upper sleeve 103 and a lower sleeve;
Referring to fig. 2, the reinforced concrete foundation and lower sleeve system 1 comprises a reinforced concrete foundation 101, embedded steel plates 102, a lower sleeve 103 and a steel bar hanging ring 104, wherein two groups of embedded steel plates 102 are respectively arranged at two ends of the reinforced concrete foundation 101, a plurality of anchoring steel bars 105 are arranged at the bottom of an embedded tube plate, the lower sleeve 103 is fixed on the embedded steel plates 102, and a plurality of clamping and fastening devices 106 are radially arranged on the lower sleeve 103; the reinforced concrete foundation 101 is dumbbell-shaped, and is internally provided with a plurality of layers of reinforcing steel meshes, wherein the length of the reinforcing steel meshes is 600-700cm, the length of the middle part is 250-350cm, the thickness of the reinforcing steel meshes is 80-100cm, the width of the middle part is 80-100cm, and the width of the two ends of the reinforcing steel meshes is 150-200cm; 8 round steel bar hanging rings 104 are arranged at the top, the steel bar hanging rings 104 are round steel bars with the diameter of 20mm-25mm, the distance between the two dumbbell-shaped reinforced concrete foundations 101 in the middle is determined according to the bridge pier size, and the clear distance between the dumbbell-shaped reinforced concrete foundations 101 on two sides and the dumbbell-shaped reinforced concrete foundations 101 in the middle is not less than 8m;
The steel upright post and parallel system 2 comprises a plurality of steel upright posts 201 and connecting rods 202, wherein the steel upright posts 201 are fixedly arranged in the lower sleeve 103, and are assembled into two groups of side upright posts and a middle upright post; two groups of side upright posts form a through door opening 5 with the middle upright post respectively, and adjacent steel upright posts 201 are fixedly connected through connecting rod pieces 202;
the profile steel group longitudinal beam and upper sleeve system 3 comprises a profile steel group longitudinal beam 301, an upper sleeve cover plate 302 and an upper sleeve 303, wherein the two groups of upper sleeve cover plates 302 are respectively fixed at two ends of the bottom of the profile steel group longitudinal beam 301, the upper sleeve 303 is fixed at the bottom of the upper sleeve cover plate 302, and a plurality of clamping and fastening devices 106 are radially arranged on the upper sleeve 303; the spacing between the upper sleeves 303 on the single steel section longitudinal beam 301 is equal to the spacing between the lower sleeves 103 on the single reinforced concrete foundation 101; the upper sleeve 303 is fixedly sleeved at the upper end of the steel upright 201;
The section steel group girder and the conversion beam 4 comprise a plurality of section steel group girder 401 and a plurality of conversion beams 402, the section steel group girder 401 is arranged above the section steel group girder and the upper sleeve system 3 along the transverse bridge direction, and the conversion beams 402 are uniformly arranged on the section steel group girder 401 along the longitudinal bridge direction.
When the device is installed, the method comprises the following steps:
(1) Binding the steel bars of the dumbbell-shaped reinforced concrete foundation 101, supporting templates, installing lower sleeve 103 system components such as a pre-buried steel plate 102, a lower sleeve 103 and the like according to the designed positions, pouring the reinforced concrete foundation 101 group in a complete set, and simultaneously processing and manufacturing steel upright posts, a parallel system 2, a section steel group longitudinal beam, an upper sleeve system 3 and other steel structure components in a complete set;
(2) According to the size and the position of the bridge bent cap to be poured and the bridge pier poured and the current road lane arrangement, the plane positions of the reinforced concrete foundation and the sleeve-down system 1 are lofted;
(3) Leveling the original road surface where the reinforced concrete foundation and the lower sleeve system 1 are placed by using mortar so as to ensure the top surface level of a group of four dumbbell-shaped reinforced concrete foundations 101;
(4) Firstly, a crane is used for matching and hoisting a reinforced concrete foundation and a lower sleeve system 1 to be in place, two steel columns 201 and longitudinal parallel joints are assembled on the ground synchronously, then the single steel column 201 and the longitudinal parallel joints are hoisted by the crane and inserted into the lower sleeve 103, after the position and the verticality are finely adjusted, the steel column 201 and the lower sleeve 103 are fixed by a clamping and fastening device 106 on the lower sleeve 103, and then the transverse parallel joints between the two middle steel columns 201 are continuously installed;
(5) Hoisting the steel assembly longitudinal beams and the upper sleeve system 3 by using a crane in a matched manner one by one, sleeving the upper sleeve 303 on the corresponding steel upright 201 along the longitudinal bridge from top to bottom, and fixing the steel upright 201 and the upper sleeve 303 by using a clamping and fastening device 106 on the upper sleeve 303 after fine adjustment;
(6) The large steel beam 401 is symmetrically and piece by piece installed by matching with a crane, and the large steel beam 401 and the longitudinal beam 301 are fixed by spot welding;
(7) According to the design position, installing the I-steel conversion beams 402 one by one along the transverse bridge, and finally paving a wood veneer protective layer on the tops of the I-steel conversion beams 402, thereby completing the installation of the assembled combined support platform;
(8) And finally, erecting a bowl buckle bracket, a reinforced door type bracket or a plate buckle bracket and a template system of the bridge bent cap on the assembled combined bracket platform.
The prefabricated reinforced concrete foundation 101 is matched with a pre-embedded steel plate 102, a triangular stiffening plate 107, a lower sleeve 103 system with a clamping device, an assembled steel upright column and parallel connection system 2, a profile steel group longitudinal beam 301, an upper sleeve 303 with the clamping device, a profile steel group large beam 401, an I-shaped steel conversion beam 402 and other combined bracket systems to form an assembled bracket platform for bridge bent cap construction, so that a safe and stable construction operation platform can be provided for the bridge bent cap to be constructed above, and a door opening for passing a road on the ground below can be provided, the influence of bridge construction on the current road traffic is reduced to the greatest extent, the invention has good assembly and detachability, and can be repeatedly and circularly used on a plurality of same or similar projects, thereby being beneficial to reducing resource waste and construction cost.
Example two
As a preferred embodiment of the present invention, the present embodiment optimizes the casing 103 system based on the first embodiment, specifically:
Referring to FIG. 6, the embedded steel plate 102 of the lower sleeve 103 system of the embodiment adopts a Q235 steel plate with the thickness of 12-20mm, and has a square shape and the size of 90-100cm; 20 anchor bars 105 with the diameters of 18-25 are arranged at the lower part, and the anchor bars 105 and the embedded steel plates 102 are anchored by pressure welding; the lower sleeve 103 is made of steel pipes with the diameter of 72-75mm and the wall thickness of 10-12mm, the height of 50-55mm, 8-12 triangular stiffening plates 107 are arranged between the periphery of the lower sleeve 103 and the embedded steel plate 102, and the triangular stiffening plates 107 have the dimensions of 10cm (12 cm-15 cm) and the thickness of 10mm-12mm; three layers of clamping and fastening devices 106 are radially arranged around the lower sleeve 103, six sets of clamping and fastening devices are arranged on each layer, each set of clamping and fastening devices 106 consists of a screw rod with the length of 10cm and a nut, wherein the screw rod and the nut adopt a set of high-strength bolts with the length of 32mm-36mm, the nuts are welded and fixed around the lower sleeve 103, and screw rod drilling holes penetrate through the lower sleeve 103 to tightly prop up the steel upright column 201.
Example III
As a preferred embodiment of the present invention, the present embodiment optimizes the steel upright post and parallel system 2 based on the second embodiment, specifically:
Referring to fig. 3, the longitudinal spacing of the steel columns 201 is comprehensively determined according to the width of the capping beam and the widths of the working surfaces at two sides, and the spacing of the middle steel columns 201 at two sides of the bridge is matched with the size of the bridge pier and the width of the dumbbell-shaped reinforced concrete foundation 101; the steel upright column 201 adopts phi 609mm x (10-16 mm) steel pipes, the connecting rod piece 202 is a channel steel, and the connecting rod piece 202, the steel upright column 201 and the connecting rod piece 202 are detachably assembled through splice plates 203; referring to fig. 7, the splice plate 203 is shaped to fit the angle and size of the connection rod 202.
Example IV
As a preferred embodiment of the present invention, the present embodiment optimizes the profile steel group longitudinal beam and the upper sleeve system 3 on the basis of embodiment three, specifically:
Referring to fig. 4, the profile steel assembly longitudinal beam 301 is made of double-spliced or triple-spliced 45 h-shaped steel, 4-5 mid-span stiffening plates 304 are arranged on the middle and outer sides of the mid-span, 3 beam end stiffening plates 305 are arranged on the tops of the outer side columns at the two ends, and the size of the stiffening plates is matched with the model of the longitudinal beam; the upper sleeve cover plate 302 adopts a Q235 steel plate with the thickness of 12-20mm, the square size is 90-100cm, and the structures of the upper sleeve 303, the triangular stiffening steel plate and the clamping and fastening device 106 are the same as those of the lower sleeve 103; the section steel longitudinal beam and the upper sleeve system 3 are welded and fixed, and the distance between the upper sleeves 303 is matched with the distance between the steel upright posts 201.
Example five
As a preferred embodiment of the present invention, the present embodiment optimizes the profile steel group large cross beam and the conversion beam 4 on the basis of the fourth embodiment, specifically:
referring to fig. 5, the steel section group large cross beam and the conversion beam 4 in the present embodiment are composed of four to eight H-steel section group large cross beams 401, and a plurality of 25H-steel section.
The materials used in the embodiment are universal materials for construction sites, and part of the materials can utilize waste steel materials to realize secondary development and application of waste materials, thereby realizing green construction, energy conservation and emission reduction.
The present invention is not limited to the above-described embodiments, and various changes may be made without departing from the spirit of the present invention within the knowledge of those skilled in the art, and the contents after the changes still fall within the scope of the present invention.
Claims (6)
1. The utility model provides a bridge bent cap construction is with assembled sectional shelf-unit platform which characterized in that: the steel reinforced concrete foundation and the lower sleeve system are connected with the steel upright post and the parallel system in a socket joint manner, and the steel upright post and the parallel system are connected with the steel girder group and the upper sleeve system in a socket joint manner and are extruded and fixed through clamping and fastening devices arranged on the upper sleeve and the lower sleeve;
The reinforced concrete foundation and the sleeve-down system comprise a reinforced concrete foundation, embedded steel plates, a sleeve-down pipe and steel bar hanging rings, wherein the two embedded steel plates are respectively arranged at two ends of the reinforced concrete foundation, a plurality of anchoring steel bars are arranged at the bottom of the embedded steel plates, the sleeve-down pipe is fixed on the embedded steel plates, and a plurality of clamping and fastening devices are radially arranged on the sleeve-down pipe; the plurality of steel bar hanging rings are arranged on a reinforced concrete foundation;
the steel upright posts and the parallel system comprise a plurality of steel upright posts and connecting rods, wherein the steel upright posts are fixedly arranged in a lower sleeve pipe, and are assembled into two groups of side upright posts and a middle upright post; the two groups of side stand columns and the middle stand column form a through door opening respectively, and the adjacent steel stand columns are fixedly connected through connecting rod pieces;
The profile steel group longitudinal beam and upper sleeve system comprises profile steel group longitudinal beams, an upper sleeve cover plate and an upper sleeve, wherein the two groups of upper sleeve cover plates are respectively fixed at two ends of the bottom of the profile steel group longitudinal beams, the upper sleeve is fixed at the bottom of the upper sleeve cover plate, and a plurality of clamping and fastening devices are radially arranged on the upper sleeve; the upper sleeve spacing on the single profile steel group longitudinal beam is equal to the lower sleeve spacing on the single reinforced concrete foundation; the upper sleeve is fixedly sleeved at the upper end of the steel upright post;
the section steel group large cross beams and the conversion beams comprise a plurality of section steel group large cross beams and a plurality of conversion beams, the section steel group large cross beams are arranged above the section steel group longitudinal beams and the upper sleeve system along the transverse bridge direction, and the conversion beams are uniformly arranged on the section steel group large cross beams along the longitudinal bridge direction;
The clamping and fastening device comprises a screw rod and a screw cap, wherein the screw cap is fixed on the outer wall of the sleeve, and the screw rod is in threaded connection with the screw cap and penetrates through the wall of the sleeve;
The diameter of the lower sleeve is 72-75mm, the wall thickness is 10-12mm, the height is 50-55mm, 8-12 triangular stiffening plates are arranged between the outer wall of the lower sleeve and the embedded steel plate, and the thickness of the triangular stiffening plates is 10-12mm; three layers of clamping and fastening devices are radially arranged on the lower sleeve, and six sets of clamping and fastening devices are arranged on each layer.
2. The assembled composite bracket platform for bridge cap beam construction according to claim 1, wherein: the reinforced concrete foundation is dumbbell-shaped, a plurality of layers of reinforcing steel meshes are arranged in the reinforced concrete foundation, the length of the reinforced concrete foundation is 600-700cm, the length of the middle part is 250-350cm, the thickness of the reinforced concrete foundation is 80-100cm, the width of the middle part is 80-100cm, and the widths of two ends of the reinforced concrete foundation are 150-200cm; the diameter of the steel bar hanging ring is 20-25mm.
3. The assembled composite bracket platform for bridge cap beam construction according to claim 1, wherein: the connecting rod piece is channel steel, and the connecting rod piece is detachably connected with the steel upright post through the splice plate.
4. The assembled composite bracket platform for bridge cap beam construction according to claim 1, wherein: the profile steel assembly longitudinal beam is double-spliced or three-spliced I-shaped steel, a plurality of middle stiffening plates are arranged on the middle outer sides of the profile steel assembly longitudinal beam, and a plurality of beam end stiffening plates are respectively arranged on the outer sides of two ends of the profile steel assembly longitudinal beam; the upper sleeve structure is the same as the lower sleeve structure.
5. The assembled composite bracket platform for bridge cap beam construction according to claim 1, wherein: the large beam of the steel section group is an H-shaped steel group and is provided with 4-8 large beams; the conversion beam is I-steel.
6. The method for installing the assembled combined bracket platform for bridge bent cap construction according to any one of claims 1 to 5, which is characterized by comprising the following steps:
(1) Binding the steel bars of the dumbbell-shaped reinforced concrete foundation, supporting a template, installing a pre-buried steel plate and a lower sleeve system component according to the designed position, pouring the reinforced concrete foundation group in a complete set, and simultaneously processing and manufacturing steel upright posts, a parallel system, a section steel group longitudinal beam and an upper sleeve system steel structure component in a complete set;
(2) According to the size and the position of the bridge bent cap to be poured and the bridge pier poured, the current road lane is arranged, and the plane positions of the reinforced concrete foundation and the sleeve-down system are lofted;
(3) Leveling the original pavement where the reinforced concrete foundation and the sleeve-down system are placed by using mortar so as to ensure the top surface level of a group of four dumbbell-shaped reinforced concrete foundations;
(4) Firstly, a crane is used for matching and hoisting a reinforced concrete foundation and a lower sleeve system to be in place, two steel columns are assembled on the ground synchronously in a piece mode, the steel columns are connected in parallel in a piece mode, then the single steel columns are hoisted by the crane and are connected in parallel in the longitudinal mode, the lower sleeve is inserted into the lower sleeve, after the position and the verticality are fine-tuned, the steel columns are fixed with the lower sleeve by using a clamping and fastening device on the lower sleeve, and then the transverse parallel connection between the two middle steel columns is continuously installed;
(5) Hoisting the steel assembly longitudinal beams and the upper sleeve system by using a crane in a matching way, sleeving the upper sleeve on the corresponding steel upright post along the longitudinal bridge from top to bottom, and fixing the steel upright post and the upper sleeve by using a clamping and fastening device on the upper sleeve after fine adjustment;
(6) The large cross beams of the profile steel groups are symmetrically and piece by matching with a crane, and spot welding is fixed between the large cross beams of the profile steel groups and the longitudinal beams of the profile steel groups;
(7) According to the design position, installing I-steel conversion beams one by one along the transverse bridge, and finally paving a wood plywood protective layer on the top of the I-steel conversion beams, thereby completing the installation of the assembled combined support platform;
(8) And finally, erecting a bowl buckle bracket, a reinforced door type bracket or a plate buckle bracket and a template system of the bridge bent cap on the assembled combined bracket platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110526349.9A CN113089499B (en) | 2021-05-14 | 2021-05-14 | Assembled combined support platform for bridge bent cap construction and mounting method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110526349.9A CN113089499B (en) | 2021-05-14 | 2021-05-14 | Assembled combined support platform for bridge bent cap construction and mounting method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113089499A CN113089499A (en) | 2021-07-09 |
| CN113089499B true CN113089499B (en) | 2024-08-27 |
Family
ID=76665593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110526349.9A Active CN113089499B (en) | 2021-05-14 | 2021-05-14 | Assembled combined support platform for bridge bent cap construction and mounting method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113089499B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116623550A (en) * | 2023-05-31 | 2023-08-22 | 中冶建工集团有限公司 | Double-box continuous steel box girder construction method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103469733A (en) * | 2013-09-23 | 2013-12-25 | 中建五局土木工程有限公司 | Self-dropping type box girder steel pipe bailey door opening bracket and supporting method thereof |
| CN110387822A (en) * | 2019-06-25 | 2019-10-29 | 浙江欣捷建设有限公司 | Cast-in-place cover beam assembled steel pipe support and construction method thereof |
| CN214993171U (en) * | 2021-05-14 | 2021-12-03 | 杭州三阳建设工程有限公司 | Bridge bent cap construction is with assembled sectional shelf-unit platform |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201722625U (en) * | 2010-07-07 | 2011-01-26 | 中铁四局集团第一工程有限公司 | Steel-concrete beam pedestal with transverse beam for steel upright post |
| CN102392417B (en) * | 2011-11-26 | 2013-08-21 | 科达集团股份有限公司 | Dual-cantilever bearing support structure for large steel pipe and installation method |
| CN104233959B (en) * | 2014-09-02 | 2016-03-23 | 张峰 | Methods of installing, fixing, dismantling and moving the concrete guardrail formwork of viaducts and bridges |
| CN104594197B (en) * | 2014-12-01 | 2016-03-23 | 中铁二十局集团第一工程有限公司 | A kind of long-span steel pipe arch bridge non-support construction process |
| CN104831635A (en) * | 2015-05-26 | 2015-08-12 | 中铁二十二局集团第三工程有限公司 | Combined H-shaped steel cast-in-situ box beam support adjoining to and overpassing existing lines |
| KR101734304B1 (en) * | 2016-09-22 | 2017-05-12 | 오병환 | Manufacturing Method of Efficient Steel-Concrete Composite Girder, Construction Method of Continuous Bridges using such Composite Girder, and Continuous Bridges constructed by such Method |
| CN206607506U (en) * | 2017-03-08 | 2017-11-03 | 杭州三阳建设工程有限公司 | A kind of through type adds the capping construction support of passive stress trapezoid block |
| CN112359659A (en) * | 2020-12-18 | 2021-02-12 | 中交三公局第三工程有限公司 | Construction method for cast-in-place box girder support door opening of anti-seismic intercommunication area |
-
2021
- 2021-05-14 CN CN202110526349.9A patent/CN113089499B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103469733A (en) * | 2013-09-23 | 2013-12-25 | 中建五局土木工程有限公司 | Self-dropping type box girder steel pipe bailey door opening bracket and supporting method thereof |
| CN110387822A (en) * | 2019-06-25 | 2019-10-29 | 浙江欣捷建设有限公司 | Cast-in-place cover beam assembled steel pipe support and construction method thereof |
| CN214993171U (en) * | 2021-05-14 | 2021-12-03 | 杭州三阳建设工程有限公司 | Bridge bent cap construction is with assembled sectional shelf-unit platform |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113089499A (en) | 2021-07-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2021147256A1 (en) | Single-side integral hoisted large-span overbridge crossing over multiple railway lines, and construction method therefor | |
| CN110387822B (en) | Cast-in-situ bent cap assembly type steel pipe support and construction method thereof | |
| CN214993171U (en) | Bridge bent cap construction is with assembled sectional shelf-unit platform | |
| CN107869195A (en) | A kind of shaped steel steel column and column cap sizing punching block construction method | |
| CN110409624A (en) | A large-scale equipment installation and main structure reverse calculation and construction method | |
| CN216239741U (en) | Formwork system of high-rise cantilevered concrete structures | |
| CN103321155B (en) | Viaduct pier operation platform system and build this system and pour into a mould the method for bridge pier | |
| CN113089499B (en) | Assembled combined support platform for bridge bent cap construction and mounting method thereof | |
| CN107313628A (en) | A kind of basic digging-free assembled tower-type space garage and its construction method | |
| CN111042575A (en) | Steel structure upright post reinforcing structure and method for basement roof temporary road | |
| CN115387233A (en) | Construction method for large-span and large-volume bent cap of transition pier of composite beam cable-stayed bridge | |
| CN207211869U (en) | A kind of basic digging-free assembled tower-type space garage | |
| CN112144413B (en) | Whole-span in-situ splicing and erecting method for steel-concrete composite beam in mountainous area | |
| CN113699898A (en) | Side-hanging type full-suspension cover beam combined support platform and mounting method thereof | |
| CN209906223U (en) | Beam gantry crane | |
| CN108660909A (en) | A kind of prefabricated steel and concrete combination beam trestle and construction method | |
| CN209620538U (en) | A full house support system based on multi-layer truss pieces | |
| CN114109075B (en) | Construction method of quickly-installed combined steel ramp | |
| CN213203667U (en) | Supporting structure for post-cast strip-striding temporary lane of top plate of ground depot | |
| CN215165648U (en) | Vertical bearing device of reverse construction area structure that can retrieve | |
| CN205444451U (en) | H-shaped steel combined base for light house | |
| CN210621475U (en) | Cast-in-place cover beam assembled steel pipe bracket | |
| CN210798994U (en) | Concrete structure wall body unilateral template structure | |
| CN216586210U (en) | Side-hanging type full-suspension cover beam combined support platform | |
| CN222043943U (en) | Inverted trapezoid structure support for large-span upper cross beam of ultrahigh bridge tower |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |