CN109457619B - A multi-functional movable support of complex for cast-in-situ construction of concrete girder - Google Patents
A multi-functional movable support of complex for cast-in-situ construction of concrete girder Download PDFInfo
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- CN109457619B CN109457619B CN201811513052.3A CN201811513052A CN109457619B CN 109457619 B CN109457619 B CN 109457619B CN 201811513052 A CN201811513052 A CN 201811513052A CN 109457619 B CN109457619 B CN 109457619B
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- 238000010276 construction Methods 0.000 title claims abstract description 44
- 239000004567 concrete Substances 0.000 title claims abstract description 21
- 238000011065 in-situ storage Methods 0.000 title claims abstract description 15
- 239000002131 composite material Substances 0.000 claims abstract description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 230000000149 penetrating effect Effects 0.000 claims description 8
- 238000006073 displacement reaction Methods 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims description 2
- 238000009432 framing Methods 0.000 abstract description 7
- 238000009415 formwork Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 238000005266 casting Methods 0.000 description 6
- 238000012876 topography Methods 0.000 description 3
- 206010017577 Gait disturbance Diseases 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
Classifications
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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
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention relates to the technical field of bridge construction structures, in particular to a composite multifunctional movable support for cast-in-situ construction of a concrete girder. Including arranging in the two sets of dish knot support that are used for supporting girder pouring template to both sides of waiting to pour girder transverse bridge respectively, its characterized in that: at least three groups of walking support legs which are arranged at intervals along the forward bridge direction are arranged at the lower end of each group of disc buckle support; the upper ends of the walking supporting legs can be connected to the disc buckle brackets in a sliding way along the forward bridge direction, the lower ends of the walking supporting legs can be supported on supporting leg bases laid on the ground in a sliding way along the transverse bridge direction, and a plurality of supporting leg bases are arranged at intervals along the forward bridge direction; the support leg is provided with a sliding rail arranged along the transverse bridge direction; the lower ends of the walking support legs are connected to the sliding rail in a sliding way. The movable support structure is convenient to operate, can be suitable for pouring construction of the variable-section box girder, is lower in cost and more convenient to construct compared with a full framing, and has great popularization value.
Description
Technical Field
The invention relates to the technical field of bridge construction structures, in particular to a composite multifunctional movable support for cast-in-situ construction of a concrete girder.
Background
Domestic construction methods for cast-in-situ concrete bridge superstructure are more, and the construction methods correspond to different support template systems respectively, and are commonly known as hanging baskets, full framing, beam type supports, uplink movable formwork, downlink movable formwork and the like.
The hanging basket is often used for large-span continuous beam bridge cantilever pouring construction, is not influenced by bridge span topography and height, is light in structure, does not need large-scale lifting equipment, but pouring can only be advanced section by section, the construction speed is limited, and is not suitable for the concrete girder construction of the widening section.
The full framing and the beam type framing belong to the floor frame, and the floor frame has the advantages that the bridge is good in integrity, the frame is long in installation and dismantling time, the frame template consumption is large, and the construction adaptability to the high pier main beam is poor. The full framing is greatly influenced by the topography of the bridge span, and the requirement on the bearing capacity of the foundation is high; the beam type support has certain adaptability to bridge span terrain, but large-scale hoisting equipment is needed for auxiliary construction.
The uplink movable formwork and the downlink movable formwork are not influenced by bridge span topography and height, but can only be cast in a pushing mode step by step, the design requirement on the equipment structure is strict, the early investment cost is high, and meanwhile, the method is not suitable for the construction of the widened or variable-height section concrete main beam.
The patent No. CN106120563B is a Chinese patent of the construction method based on the composite movable formwork cast-in-situ box girder, which introduces a composite formwork structure capable of moving longitudinally and transversely along the girder, the formwork can be demolded along the transverse movement after the casting of one section of girder is completed, and then the formwork can be longitudinally moved to the casting position of the next section of girder to carry out the casting construction of the next section of girder, thereby effectively solving the high cost of full-frame construction, avoiding the problem that the construction of the hanging basket cannot carry out the construction of the variable cross section box girder, avoiding the influence of pier columns in the moving process, and having simple and high efficiency. But because this die carrier is built and is supported on installing the bracket on the pier stud, the bracket needs to be spread along bridge construction direction, and the construction of bracket needs to consume a large amount of costs, and whole the degree of difficulty of putting up is also fairly big moreover, needs to change the original structure of pier stud, and this can certainly cause the damage of pier stud structure.
Disclosure of Invention
The invention aims to solve the defects of the background technology and provides a composite type multifunctional movable bracket for cast-in-situ construction of a concrete girder.
The technical scheme of the invention is as follows: a multi-functional movable support of compound type for cast-in-place construction of concrete girder, including divide and arrange two sets of dish knot supports that are used for supporting girder pouring template in waiting to pour girder transverse bridge to both sides, its characterized in that: at least three groups of walking support legs which are arranged at intervals along the forward bridge direction are arranged at the lower end of each group of disc buckle support; the upper ends of the walking supporting legs can be connected to the disc buckle brackets in a sliding way along the forward bridge direction, the lower ends of the walking supporting legs can be supported on supporting leg bases laid on the ground in a sliding way along the transverse bridge direction, and a plurality of supporting leg bases are arranged at intervals along the forward bridge direction; the support leg is provided with a sliding rail arranged along the transverse bridge direction; the lower ends of the walking support legs are connected to the sliding rail in a sliding way.
Further, the walking support leg is provided with a telescopic structure which can be contracted and stretched vertically.
The walking support leg further comprises a first connecting support seat which is connected to the disc buckle support in a sliding manner and a second connecting support seat which is connected to the support leg foundation in a sliding manner; the telescopic structure comprises an upper sleeve fixed at the lower end of the first connecting support and a lower sleeve fixed at the upper end of the second connecting support; the upper sleeve and the lower sleeve can be sleeved together along the vertical movement, and a fixing structure for fixing the upper sleeve and the lower sleeve after the vertical height adjustment is completed is arranged between the upper sleeve and the lower sleeve.
The fixing structure further comprises a bolt penetrating through the upper sleeve and the lower sleeve along the horizontal direction; the upper sleeve is provided with a plurality of first through holes which are vertically arranged at intervals; the lower sleeve is provided with a plurality of second through holes which are vertically arranged at intervals; the bolt passes through the first through hole and the second through hole.
The telescopic structure further comprises a driving structure for driving the upper sleeve and the lower sleeve to generate vertical relative displacement.
The driving structure further comprises a first fixing rod penetrating through the lower sleeve in the horizontal direction and a pull rope sleeved and fixed on the first fixing rod; the pull rope is vertically arranged, the lower end of the pull rope is fixed on the first fixed rod, and the upper end of the pull rope is connected with a power device for driving the pull rope to vertically move.
The driving structure further comprises a second fixing rod penetrating through the upper sleeve in the horizontal direction; the stay cord twine on the second dead lever.
The lower end of the further disc buckle support is paved with a plurality of longitudinal beams which are arranged at intervals along the transverse bridge direction; the longitudinal beams are arranged along the forward bridge direction, and transverse bridge direction tracks which are arranged in an inverted T shape are arranged at the lower ends of the longitudinal beams; the first connecting support is provided with an upper roller which is hooked on the track and can slide along the forward bridge direction.
The lower end of the second connecting support is further provided with a lower roller which can be supported on the sliding rail in a sliding way along the transverse bridge.
The support leg support is a concrete foundation poured on the ground, and a temporary support seat for temporarily supporting the walking support leg is arranged on the upper end face of the support leg support seat; the temporary support is a steel plate which is pre-buried on the upper end face of the support leg support and provided with a U-shaped slotted hole for accommodating the lower end of the walking support leg.
The invention has the advantages that: 1. the lower end of the disc buckle support is provided with the walking support legs which can move along the forward bridge direction and the transverse bridge direction, so that the disc buckle support has the function of bidirectional movement, the blocking of the pier column can be effectively avoided in the moving process, the utilization rate of the disc buckle support is improved, and the problems that the building cost of the full framing is overlarge and the disc buckle support cannot move are solved;
2. the casting construction of the irregular beam body is realized through the movable plate buckle support, the problem that a hanging basket or other walking supports cannot adapt to the casting construction of the variable-section box beam is solved, and the casting construction difficulty of the box beam is reduced;
3. by the matched use of the walking support legs and the support leg foundations, the laying cost of the support leg foundations is reduced, the problem that the support leg foundations need to be laid along the forward bridge direction in the traditional walking support is avoided, the construction cost of the support leg foundations is reduced, and the construction difficulty is reduced;
4. the plurality of walking support legs alternately travel, so that the difficulty in walking of the whole plate buckle support is reduced, and the pouring efficiency of the beam body is improved;
5. through setting up interim support on the landing leg basis, provide interim support for the walking landing leg that slides to this, avoid destroying the landing leg basis because the too big weight, interim support can be spacing to the walking landing leg, avoids because the incident emergence that causes of sliding.
The movable support structure is convenient to operate, can be suitable for pouring construction of the variable-section box girder, is lower in cost and more convenient to construct compared with a full framing, and has great popularization value.
Drawings
Fig. 1: front view of the movable bracket of the invention;
fig. 2: the moving support of the invention moves the structural schematic diagram along the transverse bridge direction;
fig. 3: front view of the walking leg of the invention;
fig. 4: side view of the walking leg of the present invention;
fig. 5: side view of the mobile carriage of the present invention;
fig. 6: the moving support moves in the forward bridge direction in the structure schematic diagram of the step 1;
fig. 7: the moving support moves along the forward bridge direction in the structural schematic diagram of the step 2;
fig. 8: the moving support moves along the forward bridge direction in the structure schematic diagram of the step 3;
fig. 9: the moving support moves along the forward bridge direction in the structural schematic diagram of the step 4;
fig. 10: the moving bracket moves along the forward bridge direction in the structure schematic diagram of the step 5;
fig. 11: the moving bracket moves along the forward bridge direction in the structural schematic diagram of the step 6;
wherein: 1-a disc buckle bracket; 2-a leg foundation; 3-a sliding rail; 4-a first connection mount; 5-a second connecting support; 6-an upper sleeve; 7-a lower sleeve; 8, a bolt; 9-a first through hole; 10-a second through hole; 11-a first fixing rod; 12-a second fixing rod; 13-pulling rope; 14-longitudinal beams; 15-track; 16-upper roller; 17-lower roller; 18-temporary support.
Detailed Description
The invention will now be described in further detail with reference to the drawings and to specific examples.
The movable support of the embodiment can realize the movement of the transverse bridge to the forward bridge, so as to adapt to bridge pouring at different positions and avoid structures such as pier columns and the like in the bridge pouring process. As shown in fig. 1-2 and 5-11, the bracket structure of the embodiment is a plate buckle bracket 1 for supporting a bridge pouring template, and the plate buckle bracket 1 can be adjusted according to the size of a box girder to be poured so as to adapt to the pouring construction of the variable cross-section box girder. The lower end of the disc buckle support 1 is anchored on a steel plate platform through a bolt structure, a plurality of cross beams which are arranged at intervals along the longitudinal direction of the bridge are paved below the steel plate platform, a plurality of longitudinal beams 14 which are arranged at intervals along the longitudinal direction of the bridge are paved at the lower end of the cross beams, and the cross beams and the longitudinal beams 14 are arranged in a crisscross manner and are used for supporting the whole disc buckle support 1 structure.
The movable bracket of the embodiment consists of two groups of plate buckle brackets 1 which are arranged at intervals along the transverse bridge, and the two groups of plate buckle brackets 1 are combined to form a bracket structure for pouring a box girder during pouring, as shown in figures 1-2. At least three groups of walking support legs which are arranged at intervals along the forward bridge direction are arranged at the lower end of each group of the tray buckle support 1, and four groups of walking support legs are arranged at the lower end of the tray buckle support 1 in the embodiment as shown in figures 5 to 11.
As shown in fig. 3 to 4, the walking support leg comprises a first connecting support 4 which is slidably connected to the buckle bracket 1, a longitudinal beam 14 of the embodiment is arranged along the forward bridge direction, a transverse bridge direction track 15 which is arranged in an inverted T shape is arranged at the lower end of the longitudinal beam 14, and an upper roller 16 which is hooked on the track 15 and can slide along the forward bridge direction is arranged on the first connecting support 4. The upper roller 16 is hooked on the track 15 to realize the movement of the walking support leg along the track 15 in the forward bridge direction.
As shown in fig. 3 to 4, the walking support leg comprises a second connection support 5 which is slidably connected to the support leg foundation 2, the support leg foundation 2 is a reinforced concrete foundation poured on the ground, and a lower roller 17 which is slidably supported on the slide rail 3 along the transverse bridge direction is arranged at the lower end of the second connection support 5. The lower roller 17 is slidably connected to the sliding rail 3 arranged along the transverse bridge direction, so that the walking support leg moves along the sliding rail 3 along the transverse bridge direction.
In order to realize the movement of the walking leg along the forward direction of the bridge, a telescopic structure capable of vertically contracting and stretching is arranged between the first connecting support 4 and the second connecting support 5, as shown in fig. 3-4, the telescopic structure comprises an upper sleeve 6 fixed at the lower end of the first connecting support 4 and a lower sleeve 7 fixed at the upper end of the second connecting support 5, and the upper sleeve 6 and the lower sleeve 7 are sleeved together in a vertically movable manner. The upper sleeve 6 is provided with a plurality of first through holes 9 which are arranged at intervals along the vertical direction, the lower sleeve 7 is provided with a plurality of second through holes 10 which are arranged at intervals along the vertical direction, the bolts 8 penetrate through the first through holes 9 and the second through holes 10 along the horizontal direction, and the upper sleeve 6 and the lower sleeve 7 with the vertical height adjusted are fixed.
As shown in fig. 3 to 4, in order to drive the upper sleeve 6 and the lower sleeve 7 to generate vertical relative displacement, in this embodiment, a driving structure is provided on the upper sleeve 6 and the lower sleeve 7, the driving structure includes a first fixing rod 11 penetrating through the lower sleeve 7 along a horizontal direction and a pull rope 13 sleeved and fixed on the first fixing rod 11, the pull rope 13 is vertically arranged, the lower end of the pull rope 13 is fixed on the first fixing rod 11, and the upper end of the pull rope is connected with a power device for driving the pull rope 13 to move vertically. The driving structure further comprises a second fixing rod 12 penetrating through the upper sleeve 6 along the horizontal direction, and a pull rope 13 is wound on the second fixing rod 13. The driving device such as a winch drives the pull rope 13 to move, and the second fixed rod piece 12 changes the moving direction of the pull rope 13, so that the lower sleeve 7 moves vertically.
The walking landing leg is supported on the landing leg foundation 2 in the moving process, a temporary support 18 for temporarily supporting the walking landing leg is arranged on the upper end face of the landing leg support 2, and the temporary support 18 is a steel plate which is embedded in the upper end face of the landing leg support 2 and provided with a U-shaped slot hole for accommodating the lower end of the walking landing leg.
In actual operation, the method comprises the following steps: 1. before the bracket is erected, the bracket structure and the moving overall planning design are made, and all parts are processed in a rear field according to the design requirement;
2. firstly, constructing a supporting leg foundation 2 according to an overall planning design, and installing a sliding rail 3, wherein the length of the supporting leg foundation 2 is required to meet the requirement that the whole bracket transversely moves to stagger the pier column, so that the supporting leg foundation does not collide with the pier column during longitudinal movement;
3. the longitudinal beam 14 and the walking support leg are prefabricated, assembled and connected at the bridge span, and the driving equipment is also installed at the same time and is installed on the sliding rail 3 of the support leg foundation 2;
4. after the longitudinal beams 14 are all installed, paving a cross beam, then installing a steel plate platform, wherein the cross beam and the steel plate platform form a platform structure together, and a connecting bolt structure connected with the base of the disc buckle support 1 is arranged on the steel plate platform;
5. after the steel plate platform is installed, the tray buckle bracket 1 can be arranged according to the load of the main beam, the bottom of the bracket is reliably connected through a connecting bolt, and reinforcing measures such as a horizontal link rod and the like are arranged at the bottom, so that the integrity of the bracket is improved;
6. after the plate buckle bracket 1 is erected to the designed elevation, a distribution beam, a template and the like can be installed, and then the concrete main beam construction is carried out;
7. removing the template after the girder construction is completed, and driving the two groups of disc buckle brackets 1 to move along the transverse bridge by using power equipment so that the disc buckle brackets 1 are separated from the lower part of the poured girder;
8. and (5) moving to a next pouring construction station along the forward bridge direction, and performing pouring construction on the next section of beam body until all the beams Duan Jiaozhu are completed.
The method for moving the bracket along the forward bridge in the embodiment shown in fig. 5 to 11 is as follows:
step 1: as shown in fig. 5 to 6, four sets of walking legs A, B, C, D are arranged under each set of buckle support 1 and are respectively supported on four corresponding sets of leg foundations a, B, C, D, wherein D is positioned at the forefront end of the whole support in the advancing direction, when the buckle support moves, vertical adjustment is carried out on the legs A and C, firstly, bolts 8 in the two sets of walking legs are pulled out, the lower sleeve 7 is driven to move vertically, and the weight of the whole support is transferred to the walking legs B and D;
step 2: as shown in fig. 7, the disc buckle support 1 is driven to move along the forward bridge direction, and the disc buckle support 1 and the walking support legs B and D generate relative displacement sliding until the walking support legs a and C respectively move to reach above the support leg foundations B and D;
step 3: as shown in fig. 8, lowering the walking legs a and C to make the walking legs a and C supported on temporary seats on the leg bases B and D, respectively, and then driving the walking legs B and D to move over the leg bases C and e in the forward bridge direction;
step 4: as shown in fig. 9, the walking legs B and D are lowered to be supported on temporary supports on the leg bases C and e, respectively, and the walking legs a and C are retracted to disengage the walking legs a and C from the lowered leg bases B and D;
step 5: as shown in fig. 10, the disc buckle support 1 is driven to move along the forward bridge direction, and the disc buckle support 1 and the walking support legs B and D generate relative displacement sliding until the walking support legs a and C respectively move to reach above the support leg foundations C and e;
step 6: as shown in fig. 11, the process is sequentially and alternately performed until the pallet buckle support 1 moves to the position below the next span box girder to be poured, namely, the walking legs A, B, C and D are respectively supported on the leg bases e, f, g and h, so that the forward bridge movement of the pallet buckle support 1 is completed.
In the embodiment, a plurality of rows of walking leg rows which are arranged at intervals along the longitudinal direction are arranged at the lower end of each group of tray buckle support 1, each row of walking leg rows comprises a plurality of walking legs which are arranged at intervals along the transverse direction, and connecting rods are arranged between the walking legs in the same row.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. A multi-functional movable support of compound type for cast-in-place construction of concrete girder, including divide and arrange in two sets of dish knot support (1) that are used for supporting girder pouring template to both sides of waiting to pour girder transverse bridge, its characterized in that: at least three groups of walking support legs which are arranged at intervals along the forward bridge direction are arranged at the lower end of each group of disc buckle brackets (1); the upper ends of the walking support legs can be connected with the disc buckle support (1) in a sliding way along the forward bridge direction, the lower ends of the walking support legs can be supported on support leg foundations (2) laid on the ground in a sliding way along the transverse bridge direction, and a plurality of support leg foundations (2) are arranged at intervals along the forward bridge direction; the support leg foundation (2) is provided with a sliding rail (3) arranged along the transverse bridge direction; the lower ends of the walking support legs are connected with the sliding rail (3) in a sliding way;
the walking support leg is provided with a telescopic structure which can be contracted and stretched vertically.
2. A composite multifunctional mobile bracket for cast-in-situ construction of a concrete girder as claimed in claim 1, wherein: the walking support leg comprises a first connecting support (4) which is connected to the buckle bracket (1) in a sliding way and a second connecting support (5) which is connected to the support leg foundation (2) in a sliding way; the telescopic structure comprises an upper sleeve (6) fixed at the lower end of the first connecting support (4) and a lower sleeve (7) fixed at the upper end of the second connecting support (5); the upper sleeve (6) and the lower sleeve (7) can be sleeved together along the vertical movement, and a fixing structure for fixing the upper sleeve (6) and the lower sleeve (7) after the vertical height adjustment is completed is arranged between the upper sleeve and the lower sleeve.
3. A composite multifunctional mobile bracket for cast-in-situ construction of a concrete girder as claimed in claim 2, wherein: the fixing structure comprises a bolt (8) which penetrates through the upper sleeve (6) and the lower sleeve (7) along the horizontal direction; the upper sleeve (6) is provided with a plurality of first through holes (9) which are vertically arranged at intervals; a plurality of second through holes (10) are formed in the lower sleeve (7) at intervals along the vertical direction; the bolt (8) is arranged in the first through hole (9) and the second through hole (10) in a penetrating mode.
4. A composite multifunctional mobile bracket for cast-in-situ construction of a concrete girder according to claim 2 or 3, wherein: the telescopic structure also comprises a driving structure for driving the upper sleeve (6) and the lower sleeve (7) to generate vertical relative displacement.
5. The composite multifunctional movable bracket for cast-in-situ construction of a concrete girder as claimed in claim 4, wherein: the driving structure comprises a first fixing rod (11) penetrating through the lower sleeve (7) along the horizontal direction and a pull rope (13) sleeved and fixed on the first fixing rod (11); the pull ropes (13) are vertically arranged, the lower ends of the pull ropes are fixed on the first fixing rods (11), and the upper ends of the pull ropes are connected with a power device for driving the pull ropes (13) to move vertically.
6. The composite multifunctional movable bracket for cast-in-situ construction of a concrete girder as claimed in claim 5, wherein: the driving structure also comprises a second fixing rod (12) penetrating the upper sleeve (6) along the horizontal direction; the pull rope (13) is wound on the second fixing rod (12).
7. A composite multifunctional mobile bracket for cast-in-situ construction of a concrete girder as claimed in claim 2, wherein: the lower end of the disc buckle bracket (1) is paved with a plurality of longitudinal beams (14) which are arranged at intervals along the transverse bridge direction; the longitudinal beams (14) are arranged along the forward bridge direction, and transverse bridge direction tracks (15) which are arranged in an inverted T shape are arranged at the lower ends of the longitudinal beams (14); the first connecting support (4) is provided with an upper roller (16) which is hooked on the track (15) and can slide along the forward bridge direction.
8. A composite multifunctional mobile bracket for cast-in-situ construction of a concrete girder as claimed in claim 2, wherein: the lower end of the second connecting support (5) is provided with a lower roller (17) which can be supported on the sliding rail (3) in a sliding way along the transverse bridge direction.
9. A composite multifunctional mobile bracket for cast-in-situ construction of a concrete girder according to claim 1 or 8, wherein: the support leg foundation (2) is a concrete foundation poured on the ground, and a temporary support (18) for temporarily supporting the walking support leg is arranged on the upper end face of the support leg foundation (2); the temporary support (18) is a steel plate which is pre-buried on the upper end face of the supporting leg foundation (2) and provided with a U-shaped slotted hole for accommodating the lower end of the walking supporting leg.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811513052.3A CN109457619B (en) | 2018-12-11 | 2018-12-11 | A multi-functional movable support of complex for cast-in-situ construction of concrete girder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811513052.3A CN109457619B (en) | 2018-12-11 | 2018-12-11 | A multi-functional movable support of complex for cast-in-situ construction of concrete girder |
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| Publication Number | Publication Date |
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| CN109457619A CN109457619A (en) | 2019-03-12 |
| CN109457619B true CN109457619B (en) | 2023-12-19 |
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| CN201811513052.3A Active CN109457619B (en) | 2018-12-11 | 2018-12-11 | A multi-functional movable support of complex for cast-in-situ construction of concrete girder |
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| CN109944165A (en) * | 2019-04-24 | 2019-06-28 | 中铁二十四局集团有限公司 | A kind of temporary support method of the modularization regulating posture for the installation of prefabricated bent cap |
| CN110065148B (en) * | 2019-05-31 | 2024-03-22 | 中交武汉港湾工程设计研究院有限公司 | Novel immersed tube tunnel pipe section prefabricated traffic lane centre form platform truck is walked device |
| CN110725209A (en) * | 2019-10-23 | 2020-01-24 | 中铁十局集团第八工程有限公司 | Construction prop-up device and method for bridges adjacent to business lines |
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