CN112160254A - Construction method of high-simply-supported cast-in-place beam assembly type steel pipe-Bailey beam support - Google Patents
Construction method of high-simply-supported cast-in-place beam assembly type steel pipe-Bailey beam support Download PDFInfo
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- CN112160254A CN112160254A CN202011199477.9A CN202011199477A CN112160254A CN 112160254 A CN112160254 A CN 112160254A CN 202011199477 A CN202011199477 A CN 202011199477A CN 112160254 A CN112160254 A CN 112160254A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 71
- 239000010959 steel Substances 0.000 title claims abstract description 71
- 238000010276 construction Methods 0.000 title claims description 20
- 239000004576 sand Substances 0.000 claims description 16
- 238000009826 distribution Methods 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 9
- 238000003466 welding Methods 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 8
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- 230000005540 biological transmission Effects 0.000 claims description 6
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- 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
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
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Abstract
The invention relates to a high simple support cast-in-place beam assembled steel pipe-Bailey beam support, which comprises a Bailey beam unit, wherein the Bailey beam unit comprises transverse pipes, a supporting frame and a longitudinal pipe, the supporting frame is fixedly connected between the two transverse pipes which are distributed in parallel, one side of the supporting frame is fixedly connected with the longitudinal pipe, and the longitudinal pipe and the transverse pipes are mutually perpendicular and fixedly connected.
Description
Technical Field
The invention relates to the technical field of assembled steel pipes-Bailey beams, in particular to a construction method of a high-simply-supported cast-in-place beam assembled steel pipe-Bailey beam bracket.
Background
With the rapid development of various cities in China, rail transit becomes a main carrier of urban traffic and is rapidly developed, and the rail transit viaduct can adapt to various terrains and cross channels in cities. And is also increasingly occurring in rail transit construction. Because the rail transit is constructed in urban areas, underground pipelines, urban residents and the like are relatively concentrated. The construction land for the rail transit construction is limited, and a plurality of main structure concretes of the viaduct all adopt a cast-in-place mode. Therefore, the cast-in-place support has extremely high requirements on bearing capacity, safety performance, assembly and disassembly and the like, and the construction method of the high-simple-support cast-in-place beam assembly type steel pipe-Bailey beam support is provided.
Disclosure of Invention
The invention aims to provide a construction method of a high-simply-supported cast-in-place beam assembly type steel pipe-Bailey beam bracket, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a high-simple-support cast-in-place beam assembly type steel pipe-Bailey beam bracket comprises Bailey beam units, wherein each Bailey beam unit comprises transverse pipes, a supporting frame and a longitudinal pipe, the supporting frame is fixedly connected between the two transverse pipes which are distributed in parallel, the longitudinal pipe is fixedly connected to one side of the supporting frame, the longitudinal pipe and the transverse pipes are perpendicular to each other and are fixedly connected, a control seat is connected between the two adjacent Bailey beam units, the control seat is in a shape that a convex circular plate is integrally connected to the bottom surface end of a cylinder, the convex circular plate part of the control seat extends into the inner cavity of the transverse pipe, a pressure column, a worm, a rotating rod and a clamping block are arranged in the control seat, the worm is in transmission connection with one side of the pressure column, the rotating rod is fixedly connected to one end of the pressure column, the clamping block is in contact with one end of the rotating rod, which is far away from the pressure column, the clamping block is arranged, the center shaft penetrates through the clamping block, one side of the center shaft is fixedly connected with the blocking block, one end of the blocking block is in contact with the first spring piece, the other end of the pressure column is provided with the second spring piece, the control seat is provided with a T-shaped groove, the second spring piece is arranged in the T-shaped groove in a matching mode, two ends of the second spring piece are respectively provided with a metal plate, and the metal plates are fixedly embedded into the control seat.
Preferably, the fixture block is in the shape of an L-shaped column, one end of the fixture block is integrally connected with a cylinder, the middle of the cylinder of the fixture block is movably sleeved with a central shaft, and the end part of the central shaft is fixed on the inner wall of a plate groove on the control seat.
Preferably, the first spring piece is in a wave plate shape, the interception block and the first spring piece are arranged in an arc-shaped column groove formed in the inner wall of the cylinder of the fixture block, the rotating rod is in a shape that one end of the arc-shaped column is integrally connected with a straight prism, and the rotating rod is arranged in a plate cavity formed in the control seat.
Preferably, the pressure column is arranged in an arc-shaped column cavity formed in the control seat in a matching mode, the pressure column is arc-shaped and cylindrical, a plurality of tooth sockets which are uniformly distributed are formed in the outer arc surface of the pressure column, and the clamping cylinder is in meshing transmission connection with the pressure column.
Preferably, the second spring piece is in a U-shaped plate shape, two end parts of the plate body are respectively bent towards two sides of the U-shaped plate, and the second spring piece is partially protruded into an arc-shaped column cavity on the control seat.
The construction method of the high simply supported cast-in-place beam assembly type steel pipe-Bailey beam bracket comprises the following steps:
the method comprises the following steps: the support is erected from bottom to top by adopting an automobile crane or a tower crane to cooperate with manpower. Firstly, selecting corresponding hoisting equipment according to the maximum hoisting weight of the bracket;
step two: the installation of the steel pipe column needs to firstly emit a central point on the embedded part, draw the outer contour line of the steel pipe column according to the central point, reserve a hoisting point on the steel pipe column, and need a specially-assigned person to command in the hoisting process. After the steel pipe column is lifted in place, fixing the bottom section steel pipe column on the embedded part by spot welding, then controlling the vertical and horizontal verticality of the steel pipe column by using a hanging hammer, and connecting the steel pipe column and the embedded part according to the welding requirement when the verticality is less than 0.3%;
step three: the rear sections of the steel pipe piles are connected through pin bolts, the hole positions of the flange plates are firstly aligned during hoisting, the pin shafts can be used for assisting the hole position positioning, and then bolt tightening operation is carried out. And when the bolts are screwed down, the vertical and horizontal verticality of the steel pipe pile is measured by using the hanging hammer, and all the bolts can be screwed down after the verticality is less than 0.3 percent. Adjusting the perpendicularity of the steel pipe pile by using a form of a shoveling and cushioning steel plate;
step four: and the joint system at the segment position is required to be installed in time in the installation process of the steel pipe pile. Ensuring the synchronous installation of the steel pipe pile and the connection system. The connecting system is preferably in a pin-connected structure form to facilitate mounting and dismounting. The distance between the piles is large, and welding can be adopted under the condition of difficult installation;
step five: after the steel pipe column is installed, sequentially installing a sand cylinder, a column top distribution beam, a Bailey beam, a small distribution beam and a template system;
step six: when the Bailey beam is installed, pin connection and bolt connection are facilitated. The Bailey beams are assembled and spliced into rows under the beams as much as possible, the two rows of Bailey beams are assembled into a truss by the support frame, and the integral hoisting is carried out, so that the problem that the Bailey beam support frame cannot be installed due to the deformation problem after the Bailey beams are hoisted is solved;
step seven: the sand unloading cylinder ensures that the height of the filled sand must be 10cm higher than the bolt hole, and ensures that the bottom die is separated from the beam bottom by enough stroke during unloading.
Compared with the prior art, the invention has the beneficial effects that:
1. the high support adopts the steel pipe-Bailey beam, has reasonable structure, reduces construction investment while ensuring construction quality and safety, adopts the steel pipe piles as an assembly structure, is connected by high bolts, is convenient to install and disassemble and easy to repeatedly use, adopts the Bailey beam as a main beam of the support, is an assembly type member, has strong bearing capacity and is convenient for field operation;
2. the invention adopts the scheme of integral falling and truck crane dismantling for a higher steel pipe-Bailey beam bracket, so that the construction safety is guaranteed, the bracket falling device adopts a sand cylinder which is a standardized component, the assembly and disassembly are convenient, the reversing performance is high, the size of the connection system between steel pipe piles is reduced as much as possible, and the steel pipe-Bailey beam bracket is connected by adopting a pin bolt, so that the assembly and disassembly on site are convenient.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of a fixture block structure;
FIG. 3 is a schematic diagram of a pressure column.
In the figure: the device comprises a Bailey beam unit 1, a horizontal tube 2, a support frame 3, a longitudinal tube 4, a control seat 5, a pressure column 6, a worm 7, a rotating rod 8, a clamping block 9, a clamping groove 10, a central shaft 11, a blocking block 12, a first spring piece 13, a second spring piece 14, a T-shaped groove 15, a metal plate 16, a clamping barrel 17, a lead 18, a steel pipe pile 19 and a cast-in-place box beam 20.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art without creative efforts based on the technical solutions of the present invention belong to the protection scope of the present invention.
Referring to fig. 1 to 3, the present invention provides a technical solution: a high-simple-support cast-in-place beam assembly type steel pipe-Bailey beam bracket comprises Bailey beam units 1, each Bailey beam unit 1 comprises transverse pipes 2, a supporting frame 3 and longitudinal pipes 4, the supporting frame 3 is fixedly connected between the transverse pipes 2 which are distributed in parallel, one side of each supporting frame 3 is fixedly connected with the longitudinal pipe 4, the longitudinal pipes 4 and the transverse pipes 2 are mutually perpendicular and fixedly connected, a control seat 5 is connected between every two adjacent Bailey beam units 1, the control seat 5 is in a shape of a cylinder, the bottom end of the cylinder is integrally connected with a convex circular plate, the convex circular plate of the control seat 5 extends into an inner cavity of each transverse pipe 2, a pressure column 6, a worm 7, a rotating rod 8 and a clamping block 9 are arranged in the control seat 5, one side of the pressure column 6 is in transmission connection with the worm 7, one end of the pressure column 6 is fixedly connected with the rotating rod 8, one end of the rotating rod 8, far away from the pressure column 6 is in contact with, one end of the clamping block 9 protrudes into a clamping groove 10 formed in the inner wall of the transverse pipe 2, a central shaft 11 penetrates through the clamping block 9, one side of the central shaft 11 is fixedly connected with an intercepting block 12, one end of the intercepting block 12 is in contact with a first spring piece 13, the other end of the pressure column 6 is provided with a second spring piece 14, a T-shaped groove 15 is formed in the control seat 5, the second spring piece 14 is arranged in the T-shaped groove 15 in a matched mode, two ends of the second spring piece 14 are respectively provided with a metal plate 16, and the metal plates 16 are fixedly embedded into the control seat 5.
The fixture block 9 is in an L-shaped column shape, one end of the fixture block is integrally connected with a cylinder, the middle of the cylinder of the fixture block 9 is movably sleeved with a central shaft 11, and the end part of the central shaft 11 is fixed on the inner wall of a plate groove on the control seat 5.
The first spring piece 13 is in a wave plate shape, the intercepting block 12 and the first spring piece 13 are arranged in an arc-shaped column groove formed in the inner wall of the cylinder of the clamping block 9, the rotating rod 8 is in a shape that one end of the arc-shaped column is integrally connected with a straight prism, and the rotating rod 8 is arranged in a plate cavity formed in the control seat 5.
The pressure column 6 is arranged in an arc-shaped column cavity formed in the control base 5 in a matching mode, the pressure column 6 is arc-shaped column-shaped, a plurality of tooth sockets which are uniformly distributed are formed in the outer arc surface of the pressure column 6, and the clamping cylinder 17 is in meshing transmission connection with the pressure column 6.
The second spring piece 14 is in a U-shaped plate shape, two end parts of the plate body are respectively bent towards two sides of the U-shaped plate, and the part of the second spring piece 14 protrudes into an arc-shaped column cavity on the control seat 5.
The construction method of the high simply supported cast-in-place beam assembly type steel pipe-Bailey beam bracket comprises the following steps:
the method comprises the following steps: the support is erected from bottom to top by adopting an automobile crane or a tower crane to cooperate with manpower. Firstly, selecting corresponding hoisting equipment according to the maximum hoisting weight of the bracket;
step two: the installation of the steel pipe column needs to firstly emit a central point on the embedded part, draw the outer contour line of the steel pipe column according to the central point, reserve a hoisting point on the steel pipe column, and need a specially-assigned person to command in the hoisting process. After the steel pipe column is lifted in place, fixing the bottom section steel pipe column on the embedded part by spot welding, then controlling the vertical and horizontal verticality of the steel pipe column by using a hanging hammer, and connecting the steel pipe column and the embedded part according to the welding requirement when the verticality is less than 0.3%;
step three: the rear sections of the steel pipe piles are connected through pin bolts, the hole positions of the flange plates are firstly aligned during hoisting, the pin shafts can be used for assisting the hole position positioning, and then bolt tightening operation is carried out. And when the bolts are screwed down, the vertical and horizontal verticality of the steel pipe pile is measured by using the hanging hammer, and all the bolts can be screwed down after the verticality is less than 0.3 percent. Adjusting the perpendicularity of the steel pipe pile by using a form of a shoveling and cushioning steel plate;
step four: and the joint system at the segment position is required to be installed in time in the installation process of the steel pipe pile. Ensuring the synchronous installation of the steel pipe pile and the connection system. The connecting system is preferably in a pin-connected structure form to facilitate mounting and dismounting. The distance between the piles is large, and welding can be adopted under the condition of difficult installation;
step five: after the steel pipe column is installed, sequentially installing a sand cylinder, a column top distribution beam, a Bailey beam, a small distribution beam and a template system;
step six: when the Bailey beam is installed, pin connection and bolt connection are facilitated. The Bailey beams are assembled and spliced into rows under the beams as much as possible, the two rows of Bailey beams are assembled into a truss by the support frame, and the integral hoisting is carried out, so that the problem that the Bailey beam support frame cannot be installed due to the deformation problem after the Bailey beams are hoisted is solved;
step seven: the sand unloading cylinder ensures that the height of the filled sand must be 10cm higher than the bolt hole, and ensures that the bottom die is separated from the beam bottom by enough stroke during unloading.
The working principle is as follows: the convex plate part of the control seat 5 is inserted into the transverse pipe 2, the first spring leaf 13 rebounds to push the interception block 12, the interception block 12 controls the clamping block 9 to retract into the control seat 5, a worker rotates the worm 7 by using a tool, the worm 7 rotates to drive the pressure column 6, the pressure column 6 moves to push the rotating rod 8, the rotating rod 8 plays a role of lever pressure application, one end of the rotating rod 8 is propped against the clamping block 9, the clamping block 9 is controlled to rotate, one end of the clamping block 9 protrudes into the clamping groove 10, rapid clamping connection between the transverse pipe 2 and the control seat 5 is realized, an alarm device in the prior art can be fixed on the control seat 5, the alarm device is connected with the alarm device through a lead 18, the end part of the second spring leaf 14 is contacted with the two metal plates 16, circuit communication of the two leads 18 can be realized, the alarm mechanism is triggered, the design can monitor the pressure column 6 in real time, once dislocation occurs between spiral teeth, the pressure column 6 moves to protrude from the control seat 5, and then alarm work can be triggered to remind workers that the Bailey beam has potential safety hazards.
The cast-in-place girder support adopts a steel pipe-Bailey girder structure, the load of the cast-in-place girder body is uniformly transmitted to the lower Bailey girder through the distribution girder, and the structural load is transmitted to each steel pipe pile by the Bailey girder through the large distribution girder on the top of the pile. The steel pipe pile is formed by processing and manufacturing threaded steel pipes with large diameters and large wall thicknesses, segments are segmented according to the hoisting capacity of field hoisting equipment, a normal wheel disc is arranged between each two segments and connected through S8.8-level high-strength bolts, and the steel pipe pile has the advantages of being high in bearing capacity, good in stability, convenient to install and disassemble and the like.
The cast-in-place beam support can generate elastic deformation and inelastic deformation under the condition of bearing the self weight of a beam body, and the whole support is attached with pressure generated by deformation of the support even if the beam body is stretched and bent a little, so a unloading device is required to be arranged for releasing the pressure of the support and then the support is dismantled. The construction method mainly aims at the construction of the high cast-in-place beam support, in order to ensure safety, the unloading device is completed by filling sand in a sand cylinder and digging out sand, the method is safe and reliable, and the upper structure of the whole support can slowly fall. The structure diagram of the sand cylinder is shown in the following figure, and the filled sand is dry-fried medium coarse sand.
Because the height of the support is high, the support is high in safety risk when being dismantled, in order to guarantee construction safety, the construction method adopts the structure above the Bailey beam part, adopts a continuous jack to integrally lower the structure to the ground, and then adopts a truck crane hoisting dismantling method to carry out construction. And the steel pipe pile is dismantled by matching of a truck crane or a tower crane. Thus, the safety risk is greatly reduced and the construction progress is guaranteed.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. Cast-in-place roof beam assembled steel pipe-bailey beam support of high letter, including bailey beam unit (1), bailey beam unit (1) is including violently managing (2), braced frame (3) and vertical pipe (4), fixedly connected with braced frame (3) between violently managing (2) of two parallel distribution, one side fixedly connected with vertical pipe (4) of braced frame (3), vertical pipe (4) and violently manage (2) mutually perpendicular and fixed connection, its characterized in that: a control seat (5) is connected between two adjacent Bailey beam units (1), the control seat (5) is in a shape that a convex circular plate is integrally connected with the bottom end of a cylinder, the convex circular plate part of the control seat (5) extends into the inner cavity of the transverse pipe (2), a pressure column (6), a worm (7), a rotating rod (8) and a clamping block (9) are arranged in the control seat (5), one side of the pressure column (6) is in transmission connection with the worm (7), one end of the pressure column (6) is fixedly connected with the rotating rod (8), one end of the rotating rod (8) far away from the pressure column (6) is in contact with the clamping block (9), the clamping block (9) is arranged in a plate groove formed in the control seat (5), one end of the clamping block (9) protrudes into a clamping groove (10) formed in the inner wall of the transverse pipe (2), a central shaft (11) penetrates through the clamping block (9), and one side of the central shaft (11) is fixedly connected with a blocking block, one end of the interception block (12) is in contact with a first spring piece (13), the end part of the other end of the pressure column (6) is provided with a second spring piece (14), the control seat (5) is provided with a T-shaped groove (15), the second spring piece (14) is arranged in the T-shaped groove (15) in a matching mode, two ends of the second spring piece (14) are respectively provided with a metal plate (16), and the metal plates (16) are fixedly embedded in the control seat (5).
2. The assembled steel pipe-Bailey beam support for the high simple support cast-in-place beam as claimed in claim 1, wherein: the clamping block (9) is in an L-shaped column shape, one end of the clamping block is integrally connected with the cylinder, the middle of the cylinder of the clamping block (9) is movably sleeved with the central shaft (11), and the end part of the central shaft (11) is fixed on the inner wall of the plate groove on the control seat (5).
3. The assembled steel pipe-Bailey beam support for the high simple support cast-in-place beam as claimed in claim 1, wherein: the spring piece I (13) is in a wave plate shape, the blocking block (12) and the spring piece I (13) are arranged in an arc-shaped column groove formed in the inner wall of the cylinder of the clamping block (9), the rotating rod (8) is in a shape that one end of the arc-shaped column is integrally connected with a straight prism, and the rotating rod (8) is arranged in a plate cavity formed in the control base (5).
4. The assembled steel pipe-Bailey beam support for the high simple support cast-in-place beam as claimed in claim 1, wherein: the pressure column (6) is arranged in an arc-shaped column cavity formed in the control base (5) in a matching mode, the pressure column (6) is arc-shaped and is provided with a plurality of tooth sockets which are uniformly distributed on the outer arc surface of the pressure column (6), and the clamping cylinder (17) is in meshing transmission connection with the pressure column (6).
5. The assembled steel pipe-Bailey beam support for the high simple support cast-in-place beam as claimed in claim 1, wherein: the second spring piece (14) is in a U-shaped plate shape, two end parts of the plate body are bent towards two sides of the U-shaped plate respectively, and the part of the second spring piece (14) protrudes into an arc-shaped column cavity on the control seat (5).
6. The construction method of the assembled steel pipe-Bailey beam bracket of the high simple support cast-in-place beam as claimed in claim 1, characterized by comprising the following steps:
the method comprises the following steps: the support is erected from bottom to top by adopting an automobile crane or a tower crane to cooperate with manpower. Firstly, selecting corresponding hoisting equipment according to the maximum hoisting weight of the bracket;
step two: the installation of the steel pipe column needs to firstly emit a central point on the embedded part, draw the outer contour line of the steel pipe column according to the central point, reserve a hoisting point on the steel pipe column, and need a specially-assigned person to command in the hoisting process. After the steel pipe column is lifted in place, fixing the bottom section steel pipe column on the embedded part by spot welding, then controlling the vertical and horizontal verticality of the steel pipe column by using a hanging hammer, and connecting the steel pipe column and the embedded part according to the welding requirement when the verticality is less than 0.3%;
step three: the rear sections of the steel pipe piles are connected through pin bolts, the hole positions of the flange plates are firstly aligned during hoisting, the pin shafts can be used for assisting the hole position positioning, and then bolt tightening operation is carried out. And when the bolts are screwed down, the vertical and horizontal verticality of the steel pipe pile is measured by using the hanging hammer, and all the bolts can be screwed down after the verticality is less than 0.3 percent. Adjusting the perpendicularity of the steel pipe pile by using a form of a shoveling and cushioning steel plate;
step four: and the joint system at the segment position is required to be installed in time in the installation process of the steel pipe pile. Ensuring the synchronous installation of the steel pipe pile and the connection system. The connecting system is preferably in a pin-connected structure form to facilitate mounting and dismounting. The distance between the piles is large, and welding can be adopted under the condition of difficult installation;
step five: after the steel pipe column is installed, sequentially installing a sand cylinder, a column top distribution beam, a Bailey beam, a small distribution beam and a template system;
step six: when the Bailey beam is installed, pin connection and bolt connection are facilitated. The Bailey beams are assembled and spliced into rows under the beams as much as possible, the two rows of Bailey beams are assembled into a truss by the support frame, and the integral hoisting is carried out, so that the problem that the Bailey beam support frame cannot be installed due to the deformation problem after the Bailey beams are hoisted is solved;
step seven: the sand unloading cylinder ensures that the height of the filled sand must be 10cm higher than the bolt hole, and ensures that the bottom die is separated from the beam bottom by enough stroke during unloading.
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| CN202011199477.9A CN112160254A (en) | 2020-11-02 | 2020-11-02 | Construction method of high-simply-supported cast-in-place beam assembly type steel pipe-Bailey beam support |
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| CN202011199477.9A CN112160254A (en) | 2020-11-02 | 2020-11-02 | Construction method of high-simply-supported cast-in-place beam assembly type steel pipe-Bailey beam support |
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| CN104099871A (en) * | 2014-06-19 | 2014-10-15 | 中铁十一局集团第二工程有限公司 | Arching structure of high large-span bridge bailey beams and construction method thereof |
| CN104018429A (en) * | 2014-06-26 | 2014-09-03 | 中铁十九局集团第七工程有限公司 | Support system for construction of straight-line section of cantilever beam at soft foundation and erecting method of support system |
| CN203947771U (en) * | 2014-07-16 | 2014-11-19 | 北京万兴建筑集团有限公司 | A kind of Bailey beam pendent form support system |
| CN104695336A (en) * | 2015-01-15 | 2015-06-10 | 中铁大桥局集团第五工程有限公司 | Double-layer cast-in-situ beam support construction method adopting sequence from upper layer to lower layer |
| US20200141140A1 (en) * | 2018-01-12 | 2020-05-07 | Changsha University Of Science & Technology | Prestressed bailey beam for reinforcement and construction method therefor |
| CN208734119U (en) * | 2018-08-03 | 2019-04-12 | 中水电第十一工程局（郑州）有限公司 | A kind of steel pipe column and Bailey beam combined type load-carrying members |
| CN108824220A (en) * | 2018-08-08 | 2018-11-16 | 中国建筑第七工程局有限公司 | A kind of cast-in-place support and construction method of the rigid structure of cantilever T-type |
| CN109610345A (en) * | 2018-12-31 | 2019-04-12 | 中铁六局集团太原铁路建设有限公司 | Swivel bridges fall beam construction method |
| CN110700100A (en) * | 2019-10-11 | 2020-01-17 | 重庆建工建筑产业技术研究院有限公司 | Bailey beam bundle construction method for cast-in-situ platform of high-pier small-radius curve ramp bridge |
| CN211389743U (en) * | 2019-11-06 | 2020-09-01 | 苏州益科驰精密机械有限公司 | Plastic mould ejection mechanism |
| CN214143315U (en) * | 2020-11-02 | 2021-09-07 | 中建八局第二建设有限公司 | High simple-support cast-in-place beam assembled steel pipe-Bailey beam support |
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