CN214939400U - A whole sideslip beam type support for cast in situ concrete box girder construction - Google Patents
A whole sideslip beam type support for cast in situ concrete box girder construction Download PDFInfo
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- CN214939400U CN214939400U CN202121027818.4U CN202121027818U CN214939400U CN 214939400 U CN214939400 U CN 214939400U CN 202121027818 U CN202121027818 U CN 202121027818U CN 214939400 U CN214939400 U CN 214939400U
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Abstract
The utility model relates to a whole sideslip beam type support for cast in situ concrete box girder construction belongs to bridge construction technical field, include: the two lower distribution beams are parallel to each other along the transverse bridge direction and are arranged at intervals; the main beam is positioned at the tops of the two lower distribution beams along the longitudinal bridge direction to support the cast-in-place concrete box beam; an adjusting support which is positioned between the main beam and the lower distribution beam to support and adjust the height of the main beam; the supporting cushion block is positioned between the main beam and the lower distribution beam so as to support the main beam and be connected with the lower distribution beam in a sliding way; and the driving mechanism is connected with the supporting cushion block so as to enable the main beam to move along the transverse bridge direction. The application of the whole transverse beam type support can be used for the second time for the same span of double-width cast-in-place concrete box girders, can effectively reduce part of construction procedures, and shortens construction period, thereby achieving the purpose of saving construction cost.
Description
Technical Field
The application relates to the technical field of bridge construction, in particular to an integral transverse beam type support for cast-in-place concrete box girder construction.
Background
The existing box girder in-situ cast-in-place construction method generally adopts a floor support method and a movable formwork bridge fabrication machine method, and the floor support method and the movable formwork bridge fabrication machine method have the advantages of procedure programming and high safety. However, the floor stand method is greatly limited by terrain and geological conditions, has insufficient spanning capability and large repeated assembling and disassembling engineering quantity, and is not suitable for construction in narrow areas of fields. Although the movable formwork bridge fabrication machine method is not limited by the terrain and geological conditions under the bridge, has high mechanization degree, less labor investment and less temporary land occupation, the method has high manufacturing cost, large investment cost, high transition cost, long assembly period and higher mechanical failure frequency.
The beam type support is one of the falsework method, and has strong adaptability to concrete box beams in various construction environments. The construction of crossing over road, river case roof beam can satisfy the requirement of vehicle traffic, navigation. But beam type support has certain shortcoming in the work progress:
1. the structure system is large, and a large amount of manpower and material resources are required to be input in the assembling and disassembling processes.
2. The assembly period is long, and particularly in the marine bridge construction process, the hoisting operation is required after the assembly, the use of the support is further influenced by the marine construction environment to a certain extent.
3. After the support is hoisted in place, a series of preparation works before construction such as weight pressing and the like are required, the construction steps are complicated, and the construction period is prolonged.
Disclosure of Invention
The embodiment of the application provides a whole sideslip beam type support for cast-in-place concrete box girder construction to solve beam type support and assemble and demolish the in-process and all need invest a large amount of manpower and materials among the correlation technique, the not enough of construction cycle length.
The embodiment of the application provides a whole sideslip beam type support for cast-in-place concrete box girder construction, include:
the number of the lower distribution beams is at least two, and the two lower distribution beams are parallel to each other along the transverse bridge direction and are arranged at intervals;
the main beam is positioned at the tops of the two lower distribution beams along the longitudinal bridge direction so as to support the cast-in-place concrete box girder;
the adjusting support is positioned between the main beam and the lower distribution beam so as to support and adjust the height of the main beam;
the supporting cushion block is positioned between the main beam and the lower distribution beam so as to support the main beam and be connected with the lower distribution beam in a sliding manner;
and the driving mechanism is connected with the supporting cushion block so as to enable the main beam to move along the transverse bridge direction.
In some embodiments: the main beam comprises a first main beam and a second main beam, the first main beam and the second main beam are parallel to each other and arranged at intervals, and the first main beam and the second main beam are connected through a plurality of web members.
In some embodiments: the cross sections of the first main beam and the second main beam are of rectangular hollow structures, the web members are arranged at intervals along the length direction of the first main beam and the second main beam, and the web members are detachably connected with the first main beam and the second main beam.
In some embodiments: the top of the main beam is provided with a plurality of upper distribution beams which are parallel to each other and arranged at intervals along the length direction of the main beam;
and a plurality of bottom die longitudinal beams are arranged at the tops of the upper distribution beams and are parallel to each other along the length direction of the upper distribution beams at intervals.
In some embodiments: the adjusting support comprises a sand cylinder support and a hydraulic jack, and the sand cylinder support and the hydraulic jack are both located between the main beam and the lower distribution beam.
In some embodiments: the supporting cushion blocks are arranged at intervals along the length direction of the lower distribution beam, and two adjacent supporting cushion blocks are hinged through a connecting plate.
In some embodiments: MGE sliding plates which are mutually connected in a sliding manner are arranged at the bottom of the supporting cushion block and the top of the lower distribution beam;
and limiting plates extending downwards are respectively arranged on two sides of the bottom of the supporting cushion block, so that the supporting cushion block can slide along the length direction of the lower distribution beam.
In some embodiments: the driving mechanism comprises an anchor beam fixedly connected with the supporting cushion block and anchor seats fixed at two ends of the lower distribution beam;
the anchor beam is connected with the anchor block through a steel strand, and the anchor block is provided with a tensioning jack for tensioning the steel strand.
In some embodiments: the driving mechanism comprises anchor seats fixed at two ends of the lower distribution beam, and a pushing jack is arranged between each anchor seat and the corresponding supporting cushion block.
In some embodiments: and a counter-force seat for adjusting the distance between the pushing jack and the anchor seat is arranged between the pushing jack and the anchor seat.
The beneficial effect that technical scheme that this application provided brought includes:
the embodiment of the application provides an integral transverse beam type support for cast-in-place concrete box girder construction, and the integral transverse beam type support is provided with at least two lower distribution beams which are parallel to each other along the transverse bridge direction and are arranged at intervals; a main beam positioned at the top of the two lower distribution beams along the longitudinal bridge direction to support the cast-in-place concrete box beam; the adjusting support is positioned between the main beam and the lower distribution beam so as to support and adjust the height of the main beam; the supporting cushion block is positioned between the main beam and the lower distribution beam so as to support the main beam and be connected with the lower distribution beam in a sliding way; and the driving mechanism is connected with the supporting cushion block so as to enable the main beam to move along the transverse bridge direction.
Therefore, when the integral transverse beam type support is used for construction of a left cast-in-place concrete box girder, the integral support is provided for construction of the left cast-in-place concrete box girder by the integral transverse beam type support, after the left cast-in-place concrete box girder can be disassembled, the height of the main girder is adjusted by the adjusting support, so that the main girder is separated from the left cast-in-place concrete box girder and falls onto the supporting cushion block, the driving mechanism is connected with the supporting cushion block to drive the main girder to move rightwards along the transverse bridge, and the integral support is provided for construction of the right cast-in-place concrete box girder.
The application of the whole transverse beam type support can be used for the second time for the same span of double-width cast-in-place concrete box girders, can effectively reduce part of construction procedures, and shortens construction period, thereby achieving the purpose of saving construction cost. The integrally-transversely-moving beam type support for the constructed cast-in-place concrete box girder construction is recycled after being transversely moved, so that the construction process of assembling the support in the construction of adjacent girder bodies is saved, the construction of double cast-in-place concrete box girders by one-span support is realized, the construction efficiency is greatly improved, and the construction cost is reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an embodiment of the present application;
FIG. 2 is an enlarged view of a portion of the main beam of FIG. 1 not falling to the shoe;
FIG. 3 is an enlarged view of a portion of the main beam of FIG. 1 falling to the shoe;
fig. 4 is a left side view of fig. 2.
Reference numerals:
1. a lower distribution beam; 2. a main beam; 3. casting a concrete box girder in situ; 4. adjusting the support; 5. supporting the cushion block; 6. an upper distribution beam; 7. bottom die longitudinal beams; 8. connecting plates; 9. an anchor beam; 10. an anchor block; 11. steel strand wires; 12. tensioning a jack; 21. a first main beam; 22. a second main beam; 23. a web member; 41. a sand cylinder support; 42. and a hydraulic jack.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The embodiment of the application provides a whole sideslip beam type support for cast-in-place concrete box girder construction, and it can solve the problem that beam type support assembles and demolishs the in-process and all need invest a large amount of manpower and materials, construction cycle length among the correlation technique.
Referring to fig. 1, an embodiment of the present application provides an integral cross-beam type support for cast-in-place concrete box girder construction, including:
the present embodiment is described by taking two lower spreader beams 1 as an example, and the two lower spreader beams 1 are parallel to each other in the transverse bridge direction and are spaced apart from each other. The two lower distribution girders 1 may be fixed to both sides of the pier according to a construction site, for example, the two lower distribution girders 1 may be fixed to both sides of the pier through pier-side brackets.
And the main beam 2 is positioned at the tops of the two lower distribution beams 1 along the longitudinal bridge direction, and the main beam 2 is used for supporting the cast-in-place concrete box beam 3 and providing integral support for in-situ casting of the cast-in-place concrete box beam 3. The top of the main beam 2 can realize the building of a box girder template, the binding of box girder steel bars, the concrete pouring of the box girder and the prestress tensioning of the box girder.
And an adjusting support 4, wherein the adjusting support 4 is positioned between the main beam 2 and the lower distribution beam 1, and the adjusting support 4 is used for supporting and adjusting the height of the main beam 2. When the cast-in-place concrete box girder 3 is constructed, the support 4 is adjusted to support the main girder 2 to a set height, so that the bottom of the cast-in-place concrete box girder 3 is higher than the pier top of the pier. After the cast-in-place concrete box girder 3 is constructed, the adjusting support 4 adjusts the main girder 2 to fall, the cast-in-place concrete box girder 3 falls on the pier top of the pier, and the main girder 2 continuously falls to separate the main girder 2 from the cast-in-place concrete box girder 3.
And the support cushion blocks 5 are positioned between the main beam 2 and the lower distribution beam 1, and the support cushion blocks 5 are used for supporting the main beam 2 and are connected with the lower distribution beam 1 in a sliding manner. When the main beam 2 continuously falls to the supporting cushion blocks 5, the supporting cushion blocks 5 bear the gravity of the main beam 2, and the supporting cushion blocks 5 are in sliding connection with the lower distribution beam 1, so that the supporting cushion blocks 5 and the main beam 2 can move along the length direction (i.e. the transverse bridge direction) of the lower distribution beam 1.
And the driving mechanism is connected with the supporting cushion blocks 5, and the driving mechanism drives the supporting cushion blocks 5 to move along the length direction of the lower distribution beam 1 so as to enable the main beam 2 to move along the transverse bridge direction, and after the main beam 2 is moved to the other side, the construction operation can be carried out on the other cast-in-place concrete box girder 3.
When the whole sideslip beam type support of this application embodiment carries out the construction of cast-in-place concrete box girder 3 of left side width of cloth, adopt whole sideslip beam type support to provide whole support for the construction of cast-in-place concrete box girder 3 of left side width of cloth, after cast-in-place concrete box girder 3 of left side width of cloth can the form removal, adjust the height that support 4 adjusted girder 2, so that girder 2 breaks away from and falls to the lip block 5 with the cast-in-place concrete box girder 3 of left side width of cloth on, actuating mechanism is connected the drive girder with the lip block 5 and is moved to the right along the cross-bridge, it provides whole support to the construction of cast-in-place concrete box girder 3 of right side width of cloth.
The application of the whole transverse beam type support can carry out secondary use on the same span of the double-width cast-in-place concrete box girder 3, can effectively reduce part of construction procedures, and shortens the construction period, thereby achieving the purpose of saving the construction cost. The integrally-transversely-moving beam type support constructed by the constructed cast-in-place concrete box girder 3 is recycled after being transversely moved, so that the construction process of assembling the support in the construction of adjacent girder bodies is saved, the construction of the double-width cast-in-place concrete box girder 3 by one-span support is realized, the construction efficiency is greatly improved, and the construction cost is reduced.
In some alternative embodiments: referring to fig. 1, the embodiment of the present application provides a cross-sliding support for cast-in-place concrete box girder construction, the girder 2 of the cross-sliding support includes a first girder 21 and a second girder 22, the first girder 21 and the second girder 22 are parallel to each other and spaced apart, and the distance between the first girder 21 and the second girder 22 can be specifically set according to the width of the cast-in-place concrete box girder 3. The first main beam 21 and the second main beam 22 are connected by a plurality of web members 23.
The sections of the first main beam 21 and the second main beam 22 are both rectangular hollow structures, the multiple web members 23 are arranged along the length direction of the first main beam 21 and the second main beam 22 at intervals, and the multiple web members 23 are detachably connected with the first main beam 21 and the second main beam 22. The main beam 2 adopts a connecting structure of the first main beam 21, the second main beam 22 and the web members 23, and has the advantages of light weight, high structural strength, convenient installation and transportation and construction cost reduction.
In some alternative embodiments: referring to fig. 1, the embodiment of the present application provides an integral cross-sliding beam support for cast-in-place concrete box girder construction, the top of a girder 2 of the integral cross-sliding beam support is provided with a plurality of upper distribution beams 6, and the plurality of upper distribution beams 6 are arranged in parallel and at intervals along the length direction of the girder 2. The top of the upper distributing beams 6 is provided with a plurality of bottom die longitudinal beams 7, and the bottom die longitudinal beams 7 are parallel to each other and arranged at intervals along the length direction of the upper distributing beams 6.
The upper distributing beam 6 extends along the transverse bridge direction, and the length of the upper distributing beam 6 is larger than the width of the main beam 2. The bottom die longitudinal beam 7 extends along the longitudinal bridge direction, and the length of the bottom die longitudinal beam 7 is consistent with that of the main beam 2. And a plurality of upper distribution beams 6 and bottom die longitudinal beams 7 form a stress supporting system of the cast-in-place concrete box girder 3.
In some alternative embodiments: referring to fig. 2 to 4, the embodiment of the present application provides a one-piece cross-sliding beam support for cast-in-place concrete box girder construction, the adjusting support 4 of the one-piece cross-sliding beam support comprises a sand cylinder support 41 and a hydraulic jack 42, and the sand cylinder support 41 and the hydraulic jack 42 are both located between the main girder 2 and the lower distribution girder 1.
The sand cylinder support 41 is used as a temporary stressed support for the main beam 2, the cast-in-place concrete box girder 3 and a box girder template during the construction of the cast-in-place concrete box girder 3, and when the cast-in-place concrete box girder 3 needs to be demolded, the height of the sand cylinder support 41 is reduced by discharging fine sand in the sand cylinder support 41. The main beam 2 gradually falls down along with the sand cylinder support 41 under the action of self weight, so that the main beam 2, the upper distribution beam 6 and the bottom die longitudinal beam 7 are separated from the cast-in-place concrete box girder 3.
The hydraulic jack 42 is used for temporary stressed support of the main beam 2 during construction of the cast-in-place concrete box girder 3, after the main beam 2 is pushed upwards to a set height by the hydraulic jack 42, the sand cylinder support 41 is padded between the main beam 2 and the lower distribution beam 1, then the hydraulic jack 42 retracts, the main beam 2 falls on the sand cylinder support 41, and the conversion sand cylinder support 41 is used for temporary stressed support of the main beam 2, the upper distribution beam 6, the bottom die longitudinal beam 7, the box girder template and the cast-in-place concrete box girder 3.
In some alternative embodiments: referring to fig. 2 to 4, the embodiment of the present application provides a single-piece cross-sliding beam support for cast-in-place concrete box girder construction, the support cushion block 5 of the single-piece cross-sliding beam support is provided with a plurality of support cushion blocks 5, the plurality of support cushion blocks 5 are arranged at intervals along the length direction of the lower distribution beam 1, and two adjacent support cushion blocks 5 are hinged through a connecting plate 8. The connecting plate 8 connects two adjacent supporting cushion blocks 5 into a whole, and a plurality of supporting cushion blocks 5 can synchronously move on the lower distribution beam 1.
MGE sliding plates which are mutually connected in a sliding manner are arranged at the bottom of the supporting cushion block 5 and the top of the lower distribution beam 1; the MGE sliding plate has good elasticity and impact resistance, can well eliminate various hazards caused by local high pressure due to uneven track, and has the advantages of low friction coefficient, small difference between dynamic and static friction coefficients, no creeping phenomenon and stable operation. Ensuring a reliable sliding of the shoe 5 on the lower distribution beam 1.
And limiting plates extending downwards are respectively arranged on two sides of the bottom of the supporting cushion block 5, so that the supporting cushion block 5 slides along the length direction of the lower distribution beam 1, the lower distribution beam 1 is used as a guide rail of the supporting cushion block 5, and the supporting cushion block 5 and the main beam 2 reciprocate on the lower distribution beam 1 along the transverse bridge direction. The limiting plate provides limiting for the supporting cushion block 5 on the lower distribution beam 1, and prevents the supporting cushion block 5 from derailing on the lower distribution beam 1.
When cast in situ concrete box girder 3 needs the form removal, reduce the height of sand section of thick bamboo support 41 through letting out the fine sand in sand section of thick bamboo support 41, girder 2 falls to the top of lip block 5 along with sand section of thick bamboo support 41 gradually under the dead weight effect. The support cushion block 5 is used as a temporary stressed support for the main beam 2, the upper distribution beam 6 and the bottom die longitudinal beam 7, and drives the main beam 2, the upper distribution beam 6 and the bottom die longitudinal beam 7 to move along the transverse bridge direction.
In some alternative embodiments: referring to fig. 1, the present embodiment provides a one-piece cross-beam type bracket for cast-in-place concrete box girder construction, the driving mechanism of which includes an anchor beam 9 fixedly connected to a shoe 5 and an anchor block 10 fixed to both ends of a lower distribution beam 1. The anchor beam 9 is connected with the anchor seat 10 through a steel strand 11, a tensioning jack 12 for tensioning the steel strand 11 is arranged on the anchor seat 10, and the tensioning jack 12 drives the anchor beam 9 and the supporting cushion block 5 to move along the transverse bridge direction through the tensioning steel strand 11.
The driving mechanism of the embodiment of the application adopts the tensioning jack 12 and the steel strand 11 to drive the anchor beam 9, the supporting cushion block 5 and the main beam 2 to move along the transverse bridge direction, and the main beam 2 is moved to the construction position of the next cast-in-place concrete box girder 3. The tensioning jack 12 is required to ensure synchronous tensioning of the supporting cushion blocks 5 at the two ends of the main beam 2 during tensioning, so that the main beam 2 is prevented from falling off in a rotating manner.
The driving mechanism of the embodiment of the present application is not limited to the above structure, and the driving mechanism may also be an anchor base 10 with power fixed at both ends of the lower distribution beam 1, and a pushing jack is arranged between the anchor base 10 and the supporting pad 5. The jacking cushion block 5 is pushed to move linearly on the lower distribution beam 1 through the telescopic motion of the jacking jack. When the length of the pushing jack is insufficient, a counter-force seat for adjusting the distance between the pushing jack and the anchor seat 10 is arranged between the pushing jack and the anchor seat, and the supporting cushion block 5 is circularly pushed by the pushing jack by increasing the number of the counter-force seats.
Principle of operation
The embodiment of the application provides an integral transverse beam type support for cast-in-place concrete box girder construction, because the integral transverse beam type support is provided with at least two lower distribution beams 1, the two lower distribution beams 1 are parallel to each other along the transverse bridge direction and are arranged at intervals; the main beam 2 is positioned at the tops of the two lower distribution beams 1 along the longitudinal bridge direction, so as to support the cast-in-place concrete box girder 3; an adjusting support 4, wherein the adjusting support 4 is positioned between the main beam 2 and the lower distribution beam 1 to support and adjust the height of the main beam 2; the supporting cushion block 5 is positioned between the main beam 2 and the lower distribution beam 1 so as to support the main beam 2 and be connected with the lower distribution beam 1 in a sliding way; and the driving mechanism is connected with the supporting cushion blocks 5 so as to enable the main beam 2 to move along the transverse bridge direction.
Therefore, when the integral transverse beam type support is used for construction of the cast-in-place concrete box girder 3 with the left width, the integral support is provided for construction of the cast-in-place concrete box girder 3 with the left width by adopting the integral transverse beam type support, after the cast-in-place concrete box girder 3 with the left width can be demolded, the height of the main beam 2 is adjusted by the adjusting support 4, so that the main beam 2 is separated from the cast-in-place concrete box girder 3 with the left width and falls onto the supporting cushion block 5, the driving mechanism is connected with the supporting cushion block 5 to drive the main beam 2 to move rightwards along the cross bridge, and the integral support is provided for construction of the cast-in-place concrete box girder 3 with the right width.
The application of the whole transverse beam type support can carry out secondary use on the same span of the double-width cast-in-place concrete box girder 3, can effectively reduce part of construction procedures, and shortens the construction period, thereby achieving the purpose of saving the construction cost. The integrally-transversely-moving beam type support constructed by the constructed cast-in-place concrete box girder 3 is recycled after being transversely moved, so that the construction process of assembling the support in the construction of adjacent girder bodies is saved, the construction of the double-width cast-in-place concrete box girder 3 by one-span support is realized, the construction efficiency is greatly improved, and the construction cost is reduced.
In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
It is noted that, in the present application, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The utility model provides an integral horizontal moving beam type support for cast in situ concrete box girder construction which characterized in that includes:
the lower distribution beams (1) are at least provided with two, and the two lower distribution beams (1) are mutually parallel and arranged at intervals along the transverse bridge direction;
the main beam (2) is positioned at the tops of the two lower distribution beams (1) along the longitudinal bridge direction to support the cast-in-place concrete box girder (3);
an adjusting support (4), wherein the adjusting support (4) is positioned between the main beam (2) and the lower distribution beam (1) to support and adjust the height of the main beam (2);
the supporting cushion block (5) is positioned between the main beam (2) and the lower distribution beam (1) to support the main beam (2) and is connected with the lower distribution beam (1) in a sliding manner;
and the driving mechanism is connected with the supporting cushion block (5) so as to enable the main beam (2) to move along the transverse bridge direction.
2. An integrally cross-sliding girder bracket for cast-in-place concrete box girder construction as set forth in claim 1, wherein:
the main beam (2) comprises a first main beam (21) and a second main beam (22), the first main beam (21) and the second main beam (22) are parallel to each other and arranged at intervals, and the first main beam (21) and the second main beam (22) are connected through a plurality of web members (23).
3. An integral cross-beam type support for cast-in-place concrete box girder construction as set forth in claim 2, wherein:
the cross sections of the first main beam (21) and the second main beam (22) are both rectangular hollow structures, the web members (23) are arranged at intervals along the length direction of the first main beam (21) and the second main beam (22), and the web members (23) are detachably connected with the first main beam (21) and the second main beam (22).
4. An integral cross-beam type bracket for cast-in-place concrete box girder construction as claimed in claim 1 or 2, wherein:
the top of the main beam (2) is provided with a plurality of upper distribution beams (6), and the upper distribution beams (6) are mutually parallel and arranged at intervals along the length direction of the main beam (2);
the top of the upper distribution beam (6) is provided with a plurality of bottom die longitudinal beams (7), and the bottom die longitudinal beams (7) are arranged in parallel and at intervals along the length direction of the upper distribution beam (6).
5. An integrally cross-sliding girder bracket for cast-in-place concrete box girder construction as set forth in claim 1, wherein:
the adjusting support (4) comprises a sand cylinder support (41) and a hydraulic jack (42), and the sand cylinder support (41) and the hydraulic jack (42) are both located between the main beam (2) and the lower distribution beam (1).
6. An integrally cross-sliding girder bracket for cast-in-place concrete box girder construction as set forth in claim 1, wherein:
the supporting cushion blocks (5) are arranged in a plurality, the supporting cushion blocks (5) are arranged at intervals along the length direction of the lower distribution beam (1), and two adjacent supporting cushion blocks (5) are hinged through connecting plates (8).
7. An integral cross-beam type bracket for cast-in-place concrete box girder construction as set forth in claim 1 or 6, wherein:
MGE sliding plates which are mutually connected in a sliding manner are arranged at the bottom of the supporting cushion block (5) and the top of the lower distribution beam (1);
limiting plates extending downwards are respectively arranged on two sides of the bottom of the supporting cushion block (5) so that the supporting cushion block (5) can slide along the length direction of the lower distribution beam (1).
8. An integrally cross-sliding girder bracket for cast-in-place concrete box girder construction as set forth in claim 1, wherein:
the driving mechanism comprises an anchor beam (9) fixedly connected with the supporting cushion block (5) and anchor seats (10) fixed at two ends of the lower distribution beam (1);
the anchor beam (9) is connected with the anchor seat (10) through a steel strand (11), and a tensioning jack (12) for tensioning the steel strand (11) is arranged on the anchor seat (10).
9. An integrally cross-sliding girder bracket for cast-in-place concrete box girder construction as set forth in claim 1, wherein:
the driving mechanism comprises anchor seats (10) fixed at two ends of the lower distribution beam (1), and a pushing jack is arranged between each anchor seat (10) and each supporting cushion block (5).
10. An integral cross-beam type support for cast-in-place concrete box girder construction as set forth in claim 9, wherein:
a counter-force seat for adjusting the distance between the pushing jack and the anchor seat (10) is arranged between the pushing jack and the anchor seat (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121027818.4U CN214939400U (en) | 2021-05-12 | 2021-05-12 | A whole sideslip beam type support for cast in situ concrete box girder construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121027818.4U CN214939400U (en) | 2021-05-12 | 2021-05-12 | A whole sideslip beam type support for cast in situ concrete box girder construction |
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| Publication Number | Publication Date |
|---|---|
| CN214939400U true CN214939400U (en) | 2021-11-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121027818.4U Active CN214939400U (en) | 2021-05-12 | 2021-05-12 | A whole sideslip beam type support for cast in situ concrete box girder construction |
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|---|---|
| CN (1) | CN214939400U (en) |
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2021
- 2021-05-12 CN CN202121027818.4U patent/CN214939400U/en active Active
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