CN213925877U - Beam column type support for cast-in-situ construction of large-span bridge - Google Patents
Beam column type support for cast-in-situ construction of large-span bridge Download PDFInfo
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- CN213925877U CN213925877U CN202022359190.XU CN202022359190U CN213925877U CN 213925877 U CN213925877 U CN 213925877U CN 202022359190 U CN202022359190 U CN 202022359190U CN 213925877 U CN213925877 U CN 213925877U
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Abstract
The utility model relates to a bridge construction field discloses a beam column type support for cast-in-place construction of large-span bridge, including a plurality of parallel arrangement's support frame, each support frame all includes a plurality of heads and tails can dismantle the supporting part of connection, the supporting part includes two sets of parallel arrangement's horizontal support component, the vertical pillar that is equipped with between two sets of horizontal support components, the slope is equipped with the strengthening rib between horizontal support component and the pillar, and the junction of the horizontal support component of two adjacent support portions is equipped with the boss to solve the not high problem of support flexural strength for the bridge construction of large-span among the prior art.
Description
Technical Field
The utility model relates to a bridge construction field, concretely relates to beam column type support that is used for cast-in-place construction of large-span bridge.
Background
In the bridge construction process, after the piers are constructed, a support for connecting the two piers is required to be built between the two piers, then the bridge main body is constructed, and after the bridge main body is constructed, the support is detached. With the continuous development of bridge construction, in the prior art, the distance between two piers is usually 35 meters or more for a large-span bridge, and in the construction process, more construction difficulties and high construction cost need to be overcome; if in order to ensure that the support between two piers has stable supporting force, at least one supporting platform needs to be built between the two piers so as to support the middle part of the support. But need again wholly demolish supporting platform after bridge main part construction finishes, so not only can prolong whole time limit for a project, still can lead to the waste of manpower, material resources, financial resources, especially to the more complicated area of geological environment (if when the geology is softer, supporting platform's bearing capacity is difficult for satisfying the requirement, and the construction degree of difficulty is great and construction cost is higher when the geology is harder). It is therefore desirable to design a beam and column support that has good flexural strength without the need for mid-support.
SUMMERY OF THE UTILITY MODEL
The utility model provides a beam column type support for cast-in-place construction of large-span bridge to the bridge construction of large-span is with not high problem of support flexural strength among the solution prior art.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a beam column type support for cast-in-place construction of large-span bridge, includes a plurality of parallel arrangement's support frame, each support frame all includes a plurality of head and the tail can dismantle the supporting part of connection, the supporting part includes two sets of parallel arrangement's horizontal support component, the vertical pillar that is equipped with between two sets of horizontal support component, the slope is equipped with the strengthening rib between crossbeam and the pillar, and the junction of the horizontal support component of two adjacent supporting parts is equipped with the boss.
The principle and the advantages of the scheme are as follows:
1. has good flexural strength: because the support used in bridge construction is long in length and is formed by connecting a plurality of components through threads, the longer the support is, the weaker the middle part of the support is in bearing capacity and bending resistance, and particularly the support with larger span (such as a large-span support with the length of more than 35 m) is. Therefore, the reinforcing block is arranged at the connecting position between the supporting parts, so that the adjacent transverse supporting parts at the left side and the right side are forced to be kept on the same straight line, and the bending strength is greatly increased; secondly, a plurality of parallel support frames are arranged, and inclined reinforcing ribs are arranged between the transverse support parts and the pillars, so that the load on the support is dispersed, and the bearing capacity and the bending strength of the support are enhanced.
2. And the construction period is shortened: in the prior art, due to the fact that the flexural strength of the support is weak, a temporary supporting platform needs to be built in the middle of the support, the building of the platform comprises foundation pile construction, building of at least 10 steel pipe supports, connection construction among the steel pipe supports, building of frame falling equipment, later-stage dismantling and the like, the construction period of about 170 temporary supporting platforms needs to be built and dismantled by 3 workers each day, and the construction period of about 170 workers each day is consumed according to a section of 6000m long bridge. After this scheme of adoption will need not to build the supporting platform at support middle part, will save 3 workman's each 170 days the time limit for a project.
3. The cost is saved: after the scheme is implemented, nearly two hundred support platforms do not need to be built (according to the statistics of construction parties, the building material cost of each support platform is about 32000 yuan, the equipment cost is about 4000 yuan, the labor cost is about 9000 yuan), and the cost is saved by about seven hundred and more ten thousand yuan in total.
Preferably, as an improvement, two groups of the transverse supporting parts each comprise two beams fixedly connected up and down, and the flexural strength of the bracket is further enhanced through the double-layer reinforced beams.
Preferably, as an improvement, the crossbeam is "worker" style of calligraphy, the boss is arranged in the recess of two crossbeams, and the width of boss is unanimous with crossbeam recess width, and through the aforesaid setting, the both ends of boss are arranged in the recess of two crossbeams about respectively, and the upper surface of boss offsets with the last top surface of two crossbeam recesses, and the lower surface of boss offsets with the lower bottom surface of two crossbeam recesses, consequently even there is the trend of deformation downwards in the junction of two crossbeams, also can make the crossbeam on both sides about keep on same straight line under the boss.
Preferably, as a modification, the position of the joint of the adjacent upper cross beam and the position of the joint of the adjacent lower cross beam of the lateral support member are different. The positions of the upper and lower layers of cross beams with different bending strengths are arranged in a staggered mode, so that the bending strength of the whole transverse supporting component is balanced.
Preferably, as an improvement, the reinforcing ribs between two adjacent upright columns form a parallelogram structure so as to reinforce the integral supporting strength of the supporting frame.
Preferably, as an improvement, one end of the reinforcing block is fixedly connected with one of the cross beams, and the other end of the reinforcing block is detachably connected with the other cross beam. Through the arrangement, when the support is detached and transported, only one end of the support is detached, so that the detachment strength is reduced, and the detachment time is shortened.
Preferably, as an improvement, every three support frames are connected with each other to form a group, and the end parts of two adjacent support frames are connected through a connecting piece. Through the arrangement, on one hand, the contact area between the support frame and the stand column below the support frame is expanded, so that the stability of the support frame is enhanced; on the other hand, when the support frame is hoisted, the connection is convenient and the hoisting is rapid.
Preferably, as an improvement, the mounting positions of the connecting pieces between every two support frames are different, that is, the connecting piece between the two support frames on the left side is mounted on the upper sides of the end faces of the two support frames, and the connecting piece between the two support frames on the right side is mounted on the lower sides of the end faces of the two support frames, so as to enhance the stability of the whole support frame.
Preferably, as an improvement, the connecting member includes two connecting plates hinged to each other, and an upper side of one of the connecting plates is provided with a limiting plate for keeping the two connecting plates on the same plane. Through the arrangement, when disassembly and transportation are needed, the hinged parts of the two connecting plates are pulled to rotate upwards, so that the two supporting frames can be mutually closed and folded, on one hand, the occupied space is saved, on the other hand, a fastening device for the connecting piece and the supporting frames does not need to be manually disassembled, the disassembly and assembly period is greatly shortened, and meanwhile, the labor cost is also saved; when the support is required to be installed, the two support frames only need to be stretched outwards or the hinged parts of the two connecting plates are pushed downwards, and meanwhile, the limiting plate is arranged on the upper side of one of the connecting plates, so that the situation that the connecting pieces cannot be kept on the same plane and are unstable due to the fact that the force is too hard to apply or under the action of other external forces is avoided.
Preferably, as an improvement, the connecting piece between two support frames is at least two, and the tip strengthening rib that inclines between the tip of connecting piece and support frame, through the above-mentioned setting, guarantees the connection steadiness of three support frames, avoids the problem of heeling to produce.
Drawings
Fig. 1 is a schematic front view of embodiment 1 of the present invention.
Fig. 2 is an enlarged schematic view of a portion a in fig. 1 (specifically, a connection portion between two adjacent cross beams).
Fig. 3 is a right longitudinal sectional view of fig. 2.
Fig. 4 is a right side view of the embodiment 2 (specifically, a state view when each support frame is unfolded).
Fig. 5 is a right side view of the embodiment 2 (specifically, a state view of each support frame after being folded).
FIG. 6 is a right side view of embodiment 3.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: the support frame 1, crossbeam 2, boss 3, strengthening rib 4, pillar 5, connecting piece 6, left connecting plate 7, right connecting plate 8, limiting plate 9, tip strengthening rib 10.
Example 1
This embodiment is substantially as shown in figures 1-3 of the drawings: the utility model provides a beam column formula support for cast-in-place construction of large-span bridge, includes a plurality of parallel arrangement's support frame 1, sets up 24 support frames 1 in this embodiment. Each support frame 1 all includes 12 supporting parts that can dismantle the connection end to end, and the supporting part includes two sets of upper and lower parallel arrangement's horizontal supporting component, three pillars 5 of vertical welding between two sets of horizontal supporting component. Each group of transverse supporting components comprises two cross beams 2 which are welded or connected through bolts in an up-and-down overlapping mode, and the joint of the adjacent cross beam 2 positioned above and the joint of the adjacent cross beam 2 positioned below are different in surface in the vertical direction.
Crossbeam 2 is "worker" style of calligraphy, and both sides all are seted up flutedly around crossbeam 2 promptly, and each supporting part is when the equipment, and the terminal surface of adjacent crossbeam 2 about will offset to install the boss 3 that width and 2 recesses of crossbeam width are unanimous in the recess of two crossbeams 2, and the one end welding of boss 3 is in the recess of left crossbeam 2 promptly, and the other end threaded connection of boss 3 is in the recess of right crossbeam 2, and the length of boss 3 is suitable at 5-10cm, and the thickness and the recess depth of boss 3 are unanimous.
Two reinforcing ribs 4 which incline upwards and downwards are welded between the cross beam 2 and the pillar 5, and the reinforcing ribs 4 between two adjacent upright posts form a parallelogram structure.
Example 2
This example differs from example 2 in that: as shown in fig. 4 and 5, three support frames 1 are connected to form a group, the end portions of two adjacent support frames 1 are connected by a connecting piece 6, the mounting positions of the connecting pieces 6 between every two support frames 1 are different (non-same horizontal plane), that is, the connecting piece 6 between the two support frames 1 on the left side is mounted on the upper side of the end surfaces of the two support frames 1, and the connecting piece 6 between the two support frames 1 on the right side is mounted on the lower side of the end surfaces of the two support frames 1. Connecting piece 6 includes mutual articulated left connecting plate 7 and right connecting plate 8, left connecting plate 7 articulates on the terminal surface of left side support frame 1, right connecting plate 8 articulates on the terminal surface of right side support frame 1, and integrated into one piece has limiting plate 9 on the extension line of left connecting plate is followed to the last top surface of left connecting plate right-hand member, when consequently each support frame expandes, under limiting plate 9's effect, make left connecting plate 7 and right connecting plate 8 keep on same straight line, in order to reach the purpose of stable support.
Example 3
This example differs from example 2 in that: as shown in fig. 6, in the present embodiment, the connecting member 6 is an integrally formed connecting member 6, two connecting members 6 are installed in parallel between two support frames 1, and an end reinforcing rib 10 is welded between the connecting member 6 and the end of the support frame 1 in an inclined manner, and the end reinforcing rib 10 is made of steel material. The end surface reinforcing ribs 4 between the two connecting pieces 6 form a parallelogram structure.
The above description is only an example of the present invention, and the detailed technical solutions and/or characteristics known in the solutions are not described too much here. It should be noted that, for those skilled in the art, without departing from the technical solution of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (9)
1. The utility model provides a beam column formula support for cast-in-place construction of large-span bridge which characterized in that: including a plurality of parallel arrangement's support frame, each support frame all includes a plurality of head and the tail can dismantle the supporting part of connection, the supporting part includes two sets of parallel arrangement's horizontal supporting component, the vertical pillar that is equipped with between two sets of horizontal supporting component, the slope is equipped with the strengthening rib between horizontal supporting component and the pillar, and the junction of the horizontal supporting component of two adjacent supporting parts is equipped with the boss.
2. The beam column type support for the cast-in-place construction of the large-span bridge, according to claim 1, is characterized in that: and the two groups of transverse supporting parts comprise two transverse beams which are fixedly connected up and down.
3. The beam column type support for the cast-in-place construction of the large-span bridge as claimed in claim 2, wherein: the cross beams are I-shaped, the reinforcing blocks are positioned in the grooves of the two cross beams, and the width of each reinforcing block is consistent with the width of each groove of each cross beam.
4. The beam column type support for the cast-in-place construction of the large-span bridge as claimed in claim 3, wherein: the positions of the connecting position of the adjacent beam above and the connecting position of the adjacent beam below are different from each other.
5. The beam column type support for the cast-in-place construction of the large-span bridge, according to claim 4, is characterized in that: the reinforcing ribs between two adjacent upright posts form a parallelogram structure.
6. The beam column type support for the cast-in-place construction of the large-span bridge, according to claim 5, is characterized in that: one end of the reinforcing block is fixedly connected with one of the cross beams, and the other end of the reinforcing block is detachably connected with the other cross beam.
7. The beam column type support for cast-in-place construction of the large-span bridge as claimed in claim 1 or 6, wherein: every three support frames are connected into a group, and the end parts of two adjacent support frames are connected through a connecting piece.
8. The beam column type support for the cast-in-place construction of the large-span bridge, according to claim 7, is characterized in that: the connecting piece comprises two connecting plates hinged to each other, wherein a limiting plate used for keeping the two connecting plates on the same plane is arranged on the upper side of one connecting plate.
9. The beam column type support for the cast-in-place construction of the large-span bridge, according to claim 8, is characterized in that: the connecting piece between two support frames is at least two, and the tip strengthening rib that inclines to be provided with between the tip of connecting piece and support frame.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022359190.XU CN213925877U (en) | 2020-10-21 | 2020-10-21 | Beam column type support for cast-in-situ construction of large-span bridge |
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| CN202022359190.XU CN213925877U (en) | 2020-10-21 | 2020-10-21 | Beam column type support for cast-in-situ construction of large-span bridge |
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| CN213925877U true CN213925877U (en) | 2021-08-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112227227A (en) * | 2020-10-21 | 2021-01-15 | 中铁八局集团第一工程有限公司 | Construction method of large-span beam column type support |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112227227A (en) * | 2020-10-21 | 2021-01-15 | 中铁八局集团第一工程有限公司 | Construction method of large-span beam column type support |
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