CN113089499A - Fabricated combined support platform for bridge capping beam construction and mounting method thereof - Google Patents
Fabricated combined support platform for bridge capping beam construction and mounting method thereof Download PDFInfo
- Publication number
- CN113089499A CN113089499A CN202110526349.9A CN202110526349A CN113089499A CN 113089499 A CN113089499 A CN 113089499A CN 202110526349 A CN202110526349 A CN 202110526349A CN 113089499 A CN113089499 A CN 113089499A
- Authority
- CN
- China
- Prior art keywords
- steel
- reinforced concrete
- concrete foundation
- bridge
- 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.)
- Pending
Links
- 238000010276 construction Methods 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 13
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 208
- 239000010959 steel Substances 0.000 claims abstract description 208
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 54
- 238000006243 chemical reaction Methods 0.000 claims abstract description 21
- 238000009434 installation Methods 0.000 claims abstract description 7
- 229910000746 Structural steel Inorganic materials 0.000 claims description 9
- 239000010410 layer Substances 0.000 claims description 9
- 230000003014 reinforcing effect Effects 0.000 claims description 7
- 238000004873 anchoring Methods 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000004570 mortar (masonry) Substances 0.000 claims description 3
- 239000011120 plywood 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
- 239000004567 concrete Substances 0.000 claims description 2
- 239000002699 waste material Substances 0.000 abstract description 5
- 230000002349 favourable effect Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 description 7
- 238000012546 transfer Methods 0.000 description 6
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Images
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 capping beam construction and an installation method thereof, relating to the technical field of bridge construction equipment, comprising a reinforced concrete foundation, a lower sleeve system, a steel upright post, a parallel system, a steel group longitudinal beam, an upper sleeve system, a steel group large cross beam and a conversion beam, wherein the reinforced concrete foundation, the lower sleeve system, the steel upright post, the parallel system, the steel group longitudinal beam and the upper sleeve system are in socket joint; the invention can provide a safe and stable construction operation platform for the bridge capping beam to be constructed above, and can also provide a through door opening for the ground road below, thereby reducing the influence of bridge construction on the current road traffic to the utmost extent, so that the invention has good assembly and detachability, can be repeatedly used on a plurality of same or similar projects, is favorable for reducing resource waste and lowering 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 capping beam construction and an installation method thereof.
Background
Most of pier capping beams of the existing urban bridge adopt a door opening support or full hall support system cast-in-place construction process, but the capping beam positioned above the current general traffic road can not adopt the full hall support construction process to meet the requirement of vehicle traffic, according to the existing construction technology, a beam column support system of 'cast-in-place reinforced concrete strip foundation + welded large steel pipe + steel group longitudinal beam + disc buckle support' is generally adopted for casting, although the process can meet the requirement of casting construction of the general traffic door opening and the capping beam, the strip foundation adopts the cast-in-place process, the steel upright posts and the strip foundation are welded and fixed through embedded steel plates, the steel upright posts, the parallel connection and the upper longitudinal beam are also all adopted for welding, the whole support system is lack of assembly and disassembly from the foundation to the upper beam column system, belongs to one-time investment, and the turnover of a plurality of items is poor, the construction process is not beneficial to saving materials and resources and reducing the cycle use cost, so the construction process needs to be further innovated and perfected in the aspects of assembly, turnover, resource saving and green construction.
Disclosure of Invention
The invention aims to provide an assembled combined support platform for bridge capping beam construction and an installation method thereof, aiming at the defects in the prior art.
The technical scheme of the invention is as follows: an assembled combined support platform for bridge capping beam construction comprises a reinforced concrete foundation, a lower sleeve system, a steel upright post, a parallel system, a section steel group longitudinal beam, an upper sleeve system, a section steel group large cross beam and a conversion beam, wherein the reinforced concrete foundation, the lower sleeve system, the steel upright post, the parallel system, the section steel group longitudinal beam and the upper sleeve system are in socket joint;
the reinforced concrete foundation and lower sleeve system comprises a reinforced concrete foundation, embedded steel plates, a lower sleeve and a reinforced hanging ring, wherein two groups of the 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 tube plate, the lower sleeve is fixed on the embedded steel plates, and a plurality of clamping and fastening devices are radially arranged on the lower sleeve; the plurality of steel bar hoisting rings are arranged on a steel bar concrete foundation;
the steel upright posts and the parallel system comprise a plurality of steel upright posts and connecting rod pieces, and the steel upright posts are fixedly arranged in the lower casing and are assembled into two groups of side upright posts and middle upright posts; the two groups of side upright columns and the middle upright column respectively form a through door opening, and adjacent steel upright columns are fixedly connected through a connecting rod piece;
the structural steel group longitudinal beam and upper sleeve system comprises a structural steel group longitudinal beam, upper sleeve cover plates and upper sleeves, wherein the two groups of upper sleeve cover plates are respectively fixed at two ends of the bottom of the structural steel group longitudinal beam; the distance between the upper sleeves on the single steel group longitudinal beam is equal to the distance between the lower sleeves on the single reinforced concrete foundation; the upper sleeve is fixedly sleeved at the upper end of the steel upright post;
the large section steel group cross beam and the conversion beam comprise a plurality of section steel group cross beams and a plurality of conversion beams, the section steel group cross beams are arranged above the section steel group longitudinal beam and the upper sleeve system along the transverse bridge direction, and the conversion beams are uniformly arranged on the section steel group cross beams along the longitudinal bridge direction.
Preferably, the reinforced concrete foundation is dumbbell-shaped, and is internally provided with a plurality of layers of reinforcing steel meshes, wherein the length of each reinforcing steel mesh is 600-700cm, the length of the middle part is 250-350cm, the thickness of each reinforcing steel mesh is 80-100cm, the width of the middle part is 80-100cm, and the widths of the two ends are 150-200 cm; the diameter of the steel bar hanging ring is 20-25 mm.
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 each triangular stiffening plate is 10-12 mm; three layers of clamping and fastening devices are radially arranged on the lower sleeve, and each layer is provided with six sets.
Preferably, the connecting rod piece is a channel steel, and the connecting rod piece is detachably connected with the steel upright post and the connecting rod piece through splicing plates.
Preferably, the section steel group longitudinal beam is a double-spliced or triple-spliced I-shaped steel, a plurality of mid-span stiffening plates are arranged on the outer sides of the midspan of the section steel group longitudinal beam, and a plurality of beam end stiffening plates are respectively arranged on the outer sides of two ends of the section steel group 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 is fixed on the outer wall of the sleeve, and the screw is in threaded connection with the nut and penetrates through the wall of the sleeve.
Preferably, the large beam of the section steel group is an H-shaped section steel group large beam, and 4-8 beams are arranged; the conversion beam is I-shaped steel.
A mounting method of an assembly type combined support platform for bridge capping beam construction comprises the following steps:
(1) binding steel bars of a dumbbell-shaped reinforced concrete foundation, erecting a template, installing embedded steel plates, lower sleeve systems and other lower sleeve system components according to designed positions, pouring a reinforced concrete foundation group in a complete set, and simultaneously processing and manufacturing steel structure components such as steel stand columns, a parallel system, a steel group longitudinal beam, an upper sleeve system and the like in a complete set;
(2) according to the sizes and the positions of a bridge capping beam to be poured and a poured pier and the current road lane arrangement, setting out the plane positions of a reinforced concrete foundation and a lower sleeve system;
(3) leveling the original pavement where the reinforced concrete foundation and the lower sleeve system are placed by using mortar to ensure that the top surfaces of a group of four dumbbell-shaped reinforced concrete foundations are horizontal;
(4) firstly, a crane is matched with a reinforced concrete foundation and a lower casing system to be hoisted in place, the two steel columns are synchronously assembled into a steel column and a longitudinal parallel connection on the ground, then the crane is used for hoisting a single steel column and the longitudinal parallel connection to be inserted into a lower casing, after the position and the verticality are accurately adjusted, a clamping and fastening device on the lower casing is used for fixing the steel column and the lower casing, and then the transverse parallel connection between the two steel columns in the middle is continuously installed;
(5) hoisting the steel group longitudinal beam and the upper sleeve system by a crane in a matched manner one by one, sleeving the upper sleeve to the corresponding steel upright column from top to bottom along the longitudinal bridge direction, and fixing the steel upright column and the upper sleeve by using a clamping and fastening device on the upper sleeve after fine adjustment and adjustment;
(6) the large cross beams of the section steel set are symmetrically installed piece by matching with a crane, and the large cross beams of the section steel set and the longitudinal beams of the section steel set are fixed by spot welding;
(7) installing I-steel conversion beams one by one along the transverse bridge direction according to the designed position, and finally laying a wood plywood protective layer on the tops of the I-steel conversion beams, thereby completing the installation of the assembled combined support platform;
(8) and finally, erecting a bowl buckle support, a reinforced door type support or a plate buckle support and a template system of the bridge capping beam on the assembled combined support platform.
Compared with the prior art, the invention has the following advantages:
(1) the prefabricated support platform for the bridge capping beam construction is formed by matching a prefabricated reinforced concrete foundation with a pre-embedded steel plate, a triangular stiffening plate, a lower sleeve system with a clamping device, an assembled steel upright post and a parallel system, a section steel group longitudinal beam, an upper sleeve with the clamping device, a section steel group large cross beam, an I-shaped steel conversion beam and other combined support systems, so that a safe and stable construction operation platform can be provided for the bridge capping beam to be constructed above, a through door opening can be provided for a ground road below, and the influence of bridge construction on the current road traffic is reduced to the maximum extent;
(2) the device has reasonable structural design, large bearing capacity, good overall stability, convenient and quick installation and removal, is beneficial to improving the working efficiency and accelerating the construction progress;
(3) the dumbbell-shaped reinforced concrete foundation, the steel upright posts, the steel group longitudinal beams and the upper sleeve system of the device have adjustability in the transverse bridge direction, so that the clearance size of a through door opening constructed below can be adjusted at any time according to the needs of a through vehicle, and the influence on the current traffic can be reduced to the greatest extent;
(4) 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 green construction, energy conservation and emission reduction are realized.
Drawings
FIG. 1 is a schematic structural view 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 column and a parallel system;
FIG. 4 is a structural schematic diagram of a steel group longitudinal beam and an upper sleeve system;
FIG. 5 is a schematic structural diagram of a large cross beam and a transfer beam of a steel group;
FIG. 6 is a schematic structural diagram of a casing running system;
fig. 7 is a detailed structure diagram of the parallel system.
In the figure: 1. the steel reinforced concrete foundation comprises a steel reinforced concrete foundation and lower sleeve system, 101, a steel reinforced concrete foundation, 102, embedded steel plates, 103, lower sleeves, 104, steel reinforced hanging rings, 105, anchoring steel bars, 106, clamping and fastening devices, 107, triangular stiffening plates, 2, steel upright columns and a parallel system, 201, steel upright columns, 202, connecting rods, 203, splicing plates, 3, steel section group longitudinal beams and an upper sleeve system, 301, steel section group longitudinal beams, 302, upper sleeve cover plates, 303, upper sleeves, 304, mid-span stiffening plates, 305, beam end stiffening plates, 4, steel section group large cross beams and conversion beams, 401, steel section group large cross beams, 402, conversion beams, 5 and a through door opening.
Detailed Description
The invention is further illustrated below with reference to the figures and examples.
Example one
Referring to fig. 1, the assembled combined support platform for bridge capping beam construction comprises a reinforced concrete foundation and lower sleeve system 1, a steel upright post and parallel connection system 2, a section steel group longitudinal beam and upper sleeve system 3, a section steel group large cross beam and a 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, the steel upright post and parallel connection system 2 is in socket joint with the section steel group longitudinal beam and upper sleeve system 3, and the reinforced concrete foundation and lower sleeve system is extruded and fixed through a clamping and fastening device 106 arranged on an upper sleeve 103 and a lower sleeve 103;
referring to fig. 2, the reinforced concrete foundation and lower casing system 1 includes a reinforced concrete foundation 101, embedded steel plates 102, a lower casing 103 and reinforced hanging rings 104, two groups of embedded steel plates 102 are respectively disposed at two ends of the reinforced concrete foundation 101, a plurality of anchoring steel bars 105 are disposed at the bottom of an embedded tube plate, the lower casing 103 is fixed on the embedded steel plates 102, and a plurality of clamping and fastening devices 106 are radially disposed on the lower casing 103; the reinforced concrete foundation 101 is in a dumbbell shape, and is internally provided with a plurality of layers of reinforcing meshes, wherein the length of the reinforcing meshes is 600-700cm, the length of the middle part is 250-350cm, the thickness of the reinforcing meshes is 80-100cm, the width of the middle part is 80-100cm, and the widths of the two ends are 150-200 cm; 8 round steel bar hanging rings 104 are arranged at the top, the round steel bar hanging rings 104 are round steel bars with the diameter of 20mm-25mm, the distance between the two groups of middle dumbbell-shaped reinforced concrete foundations 101 is determined according to the size of a pier, and the clear distance between the two groups of middle dumbbell-shaped reinforced concrete foundations 101 and the middle dumbbell-shaped reinforced concrete foundations 101 at the two sides is not less than 8 m;
the steel upright post and parallel system 2 comprises a plurality of steel upright posts 201 and connecting rod pieces 202, wherein the steel upright posts 201 are fixedly arranged in the lower casing 103 and are assembled into two groups of side upright posts and middle upright posts; the two groups of side upright columns and the middle upright column form a through door opening 5 respectively, and adjacent steel upright columns 201 are fixedly connected through a connecting rod piece 202;
the section steel group longitudinal beam and upper sleeve system 3 comprises a section steel group longitudinal beam 301, upper sleeve cover plates 302 and upper sleeves 303, wherein the two groups of upper sleeve cover plates 302 are respectively fixed at two ends of the bottom of the section steel group longitudinal beam 301, the upper sleeves 303 are 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 sleeves 303; the distance between the upper sleeves 303 on the single steel group longitudinal beam 301 is equal to the distance 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 large cross beam and the transfer beam 4 comprise a plurality of section steel group large cross beams 401 and a plurality of transfer beams 402, the section steel group large cross beams 401 are arranged above the section steel group longitudinal beams and the upper sleeve system 3 along the transverse bridge direction, and the transfer beams 402 are uniformly arranged on the section steel group large cross beams 401 along the longitudinal bridge direction.
The device comprises the following steps when being installed:
(1) binding reinforcing steel bars of the dumbbell-type reinforced concrete foundation 101, erecting a template, installing embedded steel plates 102, lower sleeve 103 and other lower sleeve 103 system components according to designed positions, pouring the reinforced concrete foundation 101 group in a complete set, and simultaneously processing and manufacturing steel structure components such as steel upright columns, a parallel system 2, a section steel group longitudinal beam, an upper sleeve system 3 and the like in a complete set;
(2) according to the sizes and the positions of the bridge capping beam to be cast and the cast pier and the current road lane arrangement, setting out the plane positions of the reinforced concrete foundation and the lower sleeve system 1;
(3) leveling the original pavement where the reinforced concrete foundation and the lower sleeve system 1 are placed by using mortar to ensure that the top surfaces of a group of four dumbbell-shaped reinforced concrete foundations 101 are horizontal;
(4) firstly, a crane is used for matching and hoisting the reinforced concrete foundation and the lower casing system 1 in place, the steel upright columns 201 and the longitudinal parallel connection are assembled in pieces and are synchronously spliced on the ground according to two pieces, the single steel upright column 201 and the longitudinal parallel connection are hoisted by the crane and are inserted into the lower casing 103, after the position and the verticality are finely adjusted, the steel upright column 201 and the lower casing 103 are fixed by a clamping and fastening device 106 on the lower casing 103, and then the transverse parallel connection between the two middle steel upright columns 201 is continuously installed;
(5) hoisting the steel group longitudinal beam and the upper sleeve system 3 one by matching of a crane, sleeving the upper sleeve 303 to the corresponding steel upright 201 from top to bottom along the longitudinal bridge direction, 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 and adjustment;
(6) the large section steel group cross beams 401 are symmetrically installed piece by matching with a crane, and the large section steel group cross beams 401 and the longitudinal section steel group beams 301 are fixed in a spot welding manner;
(7) installing I-steel conversion beams 402 one by one along the transverse bridge direction according to the designed position, and finally laying a wood plywood protective layer on the tops of the I-steel conversion beams 402 so as to finish the installation of the assembled combined support platform;
(8) and finally, erecting a bowl buckle support, a reinforced door type support or a plate buckle support and a template system of the bridge capping beam on the assembled combined support platform.
The prefabricated support platform for bridge capping beam construction is formed by the prefabricated reinforced concrete foundation 101, the embedded steel plate 102, the triangular stiffening plate 107, the lower sleeve 103 system with the clamping device, the assembled steel upright post and the parallel system 2, the steel group longitudinal beam 301, the upper sleeve 303 with the clamping device, the steel group large cross beam 401, the I-shaped steel conversion beam 402 and other combined support systems, can provide a safe and stable construction operation platform for the bridge capping beam to be constructed above, can provide a traffic door opening for a ground road below, and furthest reduces the influence of bridge construction on the current road traffic.
Example two
As a preferred embodiment of the present invention, the present embodiment optimizes the lower casing 103 system on the basis of the first embodiment, specifically:
referring to fig. 6, the embedded steel plate 102 of the lower casing 103 system of the embodiment is a square Q235 steel plate with a thickness of 12-20mm and a size of 90-100 cm; 20 anchoring steel bars 105 with the diameter of 18-25 are arranged at the lower part, and the anchoring steel bars 105 and the embedded steel plates 102 are anchored by pressure welding; the lower sleeve 103 is a steel pipe with the diameter of 72-75mm and the wall thickness of 10-12mm, the height of the steel pipe is 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 size of 10cm multiplied by (12 cm-15 cm) and the thickness of 10mm-12 mm; three layers of clamping and fastening devices 106 are radially arranged on the periphery of the lower casing 103, six clamping and fastening devices 106 are arranged on each layer, each group of clamping and fastening devices 106 is composed of a screw rod with the length of 10cm and a screw cap, the screw rod and the screw cap are set high-strength bolts with the length of 32mm-36mm, the screw caps are welded and fixed on the periphery of the lower casing 103, and screw holes penetrate through the lower casing 103 to tightly press against the steel upright 201.
EXAMPLE III
As a preferred embodiment of the present invention, this embodiment optimizes the steel column and the parallel system 2 on the basis of the second embodiment, and specifically includes:
referring to fig. 3, the longitudinal distance between the steel upright columns 201 is comprehensively determined according to the width of the bent cap and the width of the working surfaces at two sides, and the distance between the middle steel upright columns 201 at two sides of the bridge is matched with the size of a pier and the width of the dumbbell-shaped reinforced concrete foundation 101; the steel upright 201 is made of steel pipes with the diameter of 609mm multiplied by 10-16mm, the connecting rod 202 is made of channel steel, and the connecting rod 202 is detachably assembled with the steel upright 201 and the connecting rod 202 through splicing plates 203; referring to fig. 7, the shape of the splice plate 203 is adapted to the angle and size of the connection rod 202.
Example four
As a preferred embodiment of the present invention, in this embodiment, the section steel group longitudinal beam and the upper casing system 3 are optimized on the basis of the third embodiment, specifically:
referring to fig. 4, a section steel group longitudinal beam 301 is made of double-spliced or triple-spliced 45-th I-shaped steel, 4-5 middle-span stiffening plates 304 are arranged on the middle and outer sides of a span, 3 beam-end stiffening plates 305 are respectively arranged on the outer side column tops of two ends, and the size of each stiffening plate is matched with the type of the longitudinal beam; the upper casing cover plate 302 is made of a Q235 steel plate with the thickness of 12-20mm, the square size is 90-100cm, and the structures of the upper casing 303, the triangular stiffening steel plate and the clamping and fastening device 106 are the same as that of the lower casing 103; the longitudinal beams of the section steel group and the upper sleeve system 3 are fixed by welding, and the distance between the upper sleeves 303 is matched with the distance between the steel upright columns 201.
EXAMPLE five
As a preferred embodiment of the present invention, in this embodiment, the large beam and the transfer beam 4 of the section steel group are optimized on the basis of the fourth embodiment, specifically:
referring to fig. 5, the section steel group large beam and the transfer beam 4 in the embodiment are composed of four to eight H-section steel group large beams 401 and a plurality of 25-gauge H-shaped steels.
The materials used in the embodiment are general materials for construction sites, and part of the materials can be waste steel, so that secondary development and application of the waste steel are realized, and green construction, energy conservation and emission reduction are realized.
The present invention is not limited to the above-described embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention, and the contents of the changes still fall within the scope of the present invention.
Claims (8)
1. The utility model provides a bridge bent cap construction is with assembled sectional shelf-unit platform which characterized in that: the reinforced concrete foundation and the lower sleeve system are in socket joint with the steel upright posts and the parallel system, the steel upright posts and the parallel system are in socket joint with the section steel group longitudinal beam and the upper sleeve system, and the reinforced concrete foundation and the lower sleeve system are extruded and fixed through clamping and fastening devices arranged on the upper sleeve and the lower sleeve;
the reinforced concrete foundation and lower sleeve system comprises a reinforced concrete foundation, embedded steel plates, a lower sleeve and a reinforced hanging ring, wherein two groups of the 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 tube plate, the lower sleeve is fixed on the embedded steel plates, and a plurality of clamping and fastening devices are radially arranged on the lower sleeve; the plurality of steel bar hoisting rings are arranged on a steel bar concrete foundation;
the steel upright posts and the parallel system comprise a plurality of steel upright posts and connecting rod pieces, and the steel upright posts are fixedly arranged in the lower casing and are assembled into two groups of side upright posts and middle upright posts; the two groups of side upright columns and the middle upright column respectively form a through door opening, and adjacent steel upright columns are fixedly connected through a connecting rod piece;
the structural steel group longitudinal beam and upper sleeve system comprises a structural steel group longitudinal beam, upper sleeve cover plates and upper sleeves, wherein the two groups of upper sleeve cover plates are respectively fixed at two ends of the bottom of the structural steel group longitudinal beam; the distance between the upper sleeves on the single steel group longitudinal beam is equal to the distance between the lower sleeves on the single reinforced concrete foundation; the upper sleeve is fixedly sleeved at the upper end of the steel upright post;
the large section steel group cross beam and the conversion beam comprise a plurality of section steel group cross beams and a plurality of conversion beams, the section steel group cross beams are arranged above the section steel group longitudinal beam and the upper sleeve system along the transverse bridge direction, and the conversion beams are uniformly arranged on the section steel group cross beams along the longitudinal bridge direction.
2. The fabricated combined support platform for bridge capping beam construction according to claim 1, wherein: the reinforced concrete foundation is in a dumbbell shape, and is internally provided with a plurality of layers of reinforcing meshes, wherein the length of each reinforcing mesh is 700cm, the length of the middle part is 250-350cm, the thickness of each reinforcing mesh is 80-100cm, the width of the middle part is 80-100cm, and the width of each reinforcing mesh is 150-200 cm; the diameter of the steel bar hanging ring is 20-25 mm.
3. The fabricated combined support platform for bridge capping beam construction according to claim 1, wherein: 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 each triangular stiffening plate is 10-12 mm; three layers of clamping and fastening devices are radially arranged on the lower sleeve, and each layer is provided with six sets.
4. The fabricated combined support platform for bridge capping beam construction according to claim 1, wherein: the connecting rod piece is a channel steel, and the connecting rod piece is detachably connected with the steel stand column and the connecting rod piece through splicing plates.
5. The fabricated combined support platform for bridge capping beam construction according to claim 1 or 3, wherein: the structural steel group longitudinal beam is double-spliced or triple-spliced I-shaped steel, a plurality of middle-span stiffening plates are arranged on the outer sides of the middle span of the structural steel group longitudinal beam, and a plurality of beam end stiffening plates are respectively arranged on the outer sides of two ends of the structural steel group longitudinal beam; the upper sleeve structure is the same as the lower sleeve structure.
6. The fabricated combined support platform for bridge capping beam construction according to claim 1, wherein: the clamping and fastening device comprises a screw and a nut, the nut is fixed on the outer wall of the sleeve, and the screw is in threaded connection with the nut and penetrates through the wall of the sleeve.
7. The fabricated combined support platform for bridge capping beam construction according to claim 1, wherein: the large beam of the section steel group is an H-shaped section steel group large beam and is provided with 4-8 beams; the conversion beam is I-shaped steel.
8. The method for installing the fabricated combined support platform for the bridge capping beam construction, which is disclosed by the claims 1-7, is characterized by comprising the following steps of:
(1) binding steel bars of a dumbbell-shaped reinforced concrete foundation, erecting a template, installing embedded steel plates, lower sleeve systems and other lower sleeve system components according to designed positions, pouring a reinforced concrete foundation group in a complete set, and simultaneously processing and manufacturing steel structure components such as steel stand columns, a parallel system, a steel group longitudinal beam, an upper sleeve system and the like in a complete set;
(2) according to the sizes and the positions of a bridge capping beam to be poured and a poured pier and the current road lane arrangement, setting out the plane positions of a reinforced concrete foundation and a lower sleeve system;
(3) leveling the original pavement where the reinforced concrete foundation and the lower sleeve system are placed by using mortar to ensure that the top surfaces of a group of four dumbbell-shaped reinforced concrete foundations are horizontal;
(4) firstly, a crane is matched with a reinforced concrete foundation and a lower casing system to be hoisted in place, the two steel columns are synchronously assembled into a steel column and a longitudinal parallel connection on the ground, then the crane is used for hoisting a single steel column and the longitudinal parallel connection to be inserted into a lower casing, after the position and the verticality are accurately adjusted, a clamping and fastening device on the lower casing is used for fixing the steel column and the lower casing, and then the transverse parallel connection between the two steel columns in the middle is continuously installed;
(5) hoisting the steel group longitudinal beam and the upper sleeve system by a crane in a matched manner one by one, sleeving the upper sleeve to the corresponding steel upright column from top to bottom along the longitudinal bridge direction, and fixing the steel upright column and the upper sleeve by using a clamping and fastening device on the upper sleeve after fine adjustment and adjustment;
(6) the large cross beams of the section steel set are symmetrically installed piece by matching with a crane, and the large cross beams of the section steel set and the longitudinal beams of the section steel set are fixed by spot welding;
(7) installing I-steel conversion beams one by one along the transverse bridge direction according to the designed position, and finally laying a wood plywood protective layer on the tops of the I-steel conversion beams, thereby completing the installation of the assembled combined support platform;
(8) and finally, erecting a bowl buckle support, a reinforced door type support or a plate buckle support and a template system of the bridge capping beam on the assembled combined support platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110526349.9A CN113089499A (en) | 2021-05-14 | 2021-05-14 | Fabricated combined support platform for bridge capping beam construction and mounting method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110526349.9A CN113089499A (en) | 2021-05-14 | 2021-05-14 | Fabricated combined support platform for bridge capping beam construction and mounting method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113089499A true CN113089499A (en) | 2021-07-09 |
Family
ID=76665593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110526349.9A Pending CN113089499A (en) | 2021-05-14 | 2021-05-14 | Fabricated combined support platform for bridge capping beam construction and mounting method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113089499A (en) |
Citations (11)
| 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 |
| CN102392417A (en) * | 2011-11-26 | 2012-03-28 | 科达集团股份有限公司 | Dual-cantilever bearing support structure for large steel pipe and installation method |
| 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 |
| CN104233959A (en) * | 2014-09-02 | 2014-12-24 | 张峰 | Device and method for assembling, fixing, detaching and moving overhead road and bridge concrete guardrail templates |
| CN104594197A (en) * | 2014-12-01 | 2015-05-06 | 中铁二十局集团第一工程有限公司 | Construction process of large-span steel tube arch bridge without supports |
| 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 |
| CN110387822A (en) * | 2019-06-25 | 2019-10-29 | 浙江欣捷建设有限公司 | Cast-in-place Bent Cap assembled steel pipe holder and its construction method |
| 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 |
| 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 |
-
2021
- 2021-05-14 CN CN202110526349.9A patent/CN113089499A/en active Pending
Patent Citations (11)
| 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 |
| CN102392417A (en) * | 2011-11-26 | 2012-03-28 | 科达集团股份有限公司 | Dual-cantilever bearing support structure for large steel pipe and installation method |
| 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 |
| CN104233959A (en) * | 2014-09-02 | 2014-12-24 | 张峰 | Device and method for assembling, fixing, detaching and moving overhead road and bridge concrete guardrail templates |
| CN104594197A (en) * | 2014-12-01 | 2015-05-06 | 中铁二十局集团第一工程有限公司 | Construction process of large-span steel tube arch bridge without supports |
| 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 |
| CN110387822A (en) * | 2019-06-25 | 2019-10-29 | 浙江欣捷建设有限公司 | Cast-in-place Bent Cap assembled steel pipe holder and its construction method |
| 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 |
| 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 |
Non-Patent Citations (1)
| Title |
|---|
| 张晓振;: "贝雷桁架与钢立柱在桥梁施工中的组合应用", 四川建筑, no. 03, 28 June 2020 (2020-06-28), pages 1 - 4 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| 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 | |
| CN212200750U (en) | Assembled building frame structure combination braced system | |
| CN103321155B (en) | Viaduct pier operation platform system and build this system and pour into a mould the method for bridge pier | |
| CN113279582A (en) | Hanging construction method for overhanging and hanging type cast-in-place plate | |
| CN113585075A (en) | Cast-in-place bridge deck formwork for steel-concrete composite beam | |
| CN212897482U (en) | Construction platform for high-rise building overhanging structural layer | |
| CN211735002U (en) | Steel-concrete combined beam bridge capable of being installed quickly | |
| CN210684430U (en) | Main bridge jacking system of large-span tied arch bridge | |
| CN210315224U (en) | High mound turns over mould construction safety passageway system | |
| CN210066504U (en) | Large-span cantilever truss type bent cap support system | |
| CN107299596B (en) | Concrete support trestle plate lower supporting beam template system and construction method thereof | |
| CN216586226U (en) | Large-scale concrete drainage box culvert roof suspension type template support | |
| CN102392417A (en) | Dual-cantilever bearing support structure for large steel pipe and installation method | |
| CN113089499A (en) | Fabricated combined support platform for bridge capping beam construction and mounting method thereof | |
| CN213203667U (en) | Supporting structure for post-cast strip-striding temporary lane of top plate of ground depot | |
| CN214656443U (en) | Hoop positioning structure for supporting prestressed bent cap | |
| CN115058976A (en) | Aluminum alloy internal mold system containing diaphragm plate and variable cross-section cast-in-place box girder and construction method thereof | |
| CN210621475U (en) | Cast-in-situ bent cap assembled steel pipe support | |
| CN110424245B (en) | Large-span tied arch bridge reconstruction method based on bridge hydraulic jacking system | |
| CN216586210U (en) | Side-hanging type full-suspension cover beam combined support platform | |
| CN211079895U (en) | High pier bent cap does not have cast-in-place structure of support | |
| CN210104533U (en) | Tie bar flat bending device capable of reducing prestress loss | |
| CN210798994U (en) | Concrete structure wall body unilateral template structure | |
| CN202323677U (en) | Support bracket structure of double-cantilever large steel pipe |
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 |