CN111691300A - A concrete placement support device for steel-concrete composite beam - Google Patents
A concrete placement support device for steel-concrete composite beam Download PDFInfo
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- CN111691300A CN111691300A CN202010416292.2A CN202010416292A CN111691300A CN 111691300 A CN111691300 A CN 111691300A CN 202010416292 A CN202010416292 A CN 202010416292A CN 111691300 A CN111691300 A CN 111691300A
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- supporting beam
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- 239000004567 concrete Substances 0.000 title claims abstract description 46
- 239000002131 composite material Substances 0.000 title claims description 12
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 43
- 239000010959 steel Substances 0.000 claims abstract description 43
- 238000000926 separation method Methods 0.000 claims description 4
- 238000010276 construction Methods 0.000 abstract description 12
- 238000000034 method Methods 0.000 abstract description 9
- 230000007547 defect Effects 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 3
- 239000002436 steel type Substances 0.000 abstract description 2
- 238000005192 partition Methods 0.000 description 8
- 239000011150 reinforced concrete Substances 0.000 description 6
- 238000009415 formwork Methods 0.000 description 5
- 239000002699 waste material Substances 0.000 description 5
- 230000003014 reinforcing effect Effects 0.000 description 3
- 238000007711 solidification Methods 0.000 description 3
- 230000008023 solidification Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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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
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/12—Grating or flooring for bridges; Fastening railway sleepers or tracks to bridges
- E01D19/125—Grating or flooring for bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
- E01D2/02—Bridges characterised by the cross-section of their bearing spanning structure of the I-girder type
-
- 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
- E01D2101/26—Concrete reinforced
-
- 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
- E01D2101/30—Metal
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention relates to a concrete pouring support device for a steel-concrete combined beam, which has the technical scheme that: the support device comprises a support beam arranged between two adjacent I-shaped steel beams, wherein a plurality of fixing bolts are respectively arranged at two ends of the support beam, the fixing bolts penetrate through the upper surfaces of the support beam and the I-shaped steel beams simultaneously, a fixing nut used for suspending the support beam is connected to each fixing bolt in a threaded manner, a plurality of support devices are arranged along the length direction of the I-shaped steel beams, and a pouring template is placed on the adjacent support beam. The invention has the advantages that: the complex operation mode of the traditional mould hanging construction mode is solved, and the defect that the traditional mould hanging supporting step sequence is complicated is overcome; simultaneously, the net distance between the two I-shaped steel beams reaches 3m, and the square steel type supporting beam can ensure that the deflection of the bottom plate meets the design requirement when the concrete is poured above. The structure is simple and clear, the operation is convenient, the construction by workers is convenient, and meanwhile, the subsequent process of treating the appearance of the bridge deck in the traditional construction mode is also reduced.
Description
Technical Field
The invention relates to the technical field of bridge manufacturing, in particular to a concrete pouring support device for a steel-concrete composite beam.
Background
The reinforced concrete beam is a beam made of reinforced concrete material. The reinforced concrete beam can be made into an independent beam, a beam-plate type floor system integrated with a reinforced concrete plate, or a single-layer or multi-layer frame integrated with the reinforced concrete column. The reinforced concrete beam has various forms, is the most basic bearing component in engineering structures such as house buildings, bridge buildings and the like, and has extremely wide application range.
In the existing steel-concrete bridge, as shown in fig. 1, the bridge body includes a plurality of pier columns 71 vertically arranged on the ground, a cap beam 73 is jointly received on the pier columns 71, a plurality of i-steel beams 3 are fixed on the cap beam 73, the i-steel beams 3 are parallel to each other and arranged at intervals, and a bridge deck 72 is poured above the i-steel beams 3. The staff need be provided with a plurality of support device between I-steel roof beam 3 to thereby pour building of template 5 and pour bridge floor 72.
The conventional support device, as shown in fig. 2, includes a fixing frame 81 fixed above two adjacent i-shaped steel beams 3, a plurality of steel bars 82 are vertically hung on the fixing frame 81, the ends of the steel bars 82 are located between the adjacent i-shaped steel beams 3, and an angle bar 83 is fixed at the end of each steel bar 82 and used for receiving the casting formwork 5. And the support device is provided with a plurality of along the length direction of the i-steel beam 3.
Because the fixing frame 81 is positioned above the I-shaped steel beam 3 and the plurality of bracket devices are arranged, the movement of workers on the I-shaped steel beam 3 is hindered, and the potential safety hazard during working is increased; and the outer peripheral face of every reinforcing bar 82 still overlaps and is equipped with a PVC pipe 84 for dismantle reinforcing bar 82 after pouring the completion, have numerous through-holes that cause by reinforcing bar 82 on the bridge floor 72 that makes the completion of pouring, the staff still need fill the through-hole, wastes time and energy, greatly reduced the efficiency of construction.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the concrete pouring support device for the steel-concrete combined beam, which has the advantages of simple structure, reduction of subsequent procedures for treating the bridge deck and improvement of the construction efficiency for bridge construction.
The technical purpose of the invention is realized by the following technical scheme: the utility model provides a concrete placement support device for steel-concrete composite beam, is including setting up a supporting beam between two adjacent I-steel roof beams, and a supporting beam's both ends respectively are provided with a plurality of fixing bolt, and fixing bolt pierces through a supporting beam and I-steel roof beam upper surface simultaneously to threaded connection has the fixation nut who is used for hanging a supporting beam in midair on every fixing bolt, and support device is provided with a plurality of along the length direction of I-steel roof beam, pours the template and takes and put on adjacent supporting beam.
Through adopting above-mentioned technical scheme, the staff at first punches to an I-steel roof beam and a supporting beam when installing the support device, then wears to establish fixing bolt simultaneously on a supporting beam and an I-steel roof beam, and then through fixation nut and fixing bolt's threaded connection, fixes a supporting beam between adjacent I-steel roof beam. Finally, the workers place the pouring templates on the adjacent supporting beams, so that the supporting beams can support the pouring templates, and concrete can be poured above the pouring templates conveniently; because the support device is completely arranged between two adjacent I-shaped steel beams, the upper surfaces of the I-shaped steel beams cannot be occupied by extra space, so that the walking of workers cannot be hindered, and potential safety hazards are reduced. And after concrete placement finishes, the support device is few with bridge floor connected relation, can not cause the influence to the bridge floor structure to the time waste that causes is filled to the bridge floor hole that has significantly reduced.
The present invention in a preferred example may be further configured to: the upper surface of the supporting beam is provided with a plurality of square timbers for supporting the pouring template, and the square timbers are simultaneously placed on the supporting beam of the adjacent support device.
Through adopting above-mentioned technical scheme, the setting up of square timber has increased with the area of contact who pours the template to improved the stability to pouring the template support greatly, the flitch has light in weight, intensity is high, elasticity is good, shock-resistant advantage moreover, has reduced the support burden to a supporting beam.
The present invention in a preferred example may be further configured to: the square timbers which are arranged on two adjacent supporting beams are mutually parallel and arranged at intervals.
Through adopting above-mentioned technical scheme, when the guarantee is to pouring template stable support, still reduced the setting of square timber to reduce the support burden of a supporting beam, and then reduced the waste of square timber.
The present invention in a preferred example may be further configured to: the same is that the square timber in the both directions of a supporting beam top is inserted empty and is set up to lean on each other.
Through adopting above-mentioned technical scheme, because the square timber interval arrangement for the not equidirectional square timber of same supporting beam both sides can insert the hole and place, has indirectly played the positioning action to the square timber of two directions, has also indirectly improved the stability that the square timber was placed, has ensured the homogeneity of pouring the template atress.
The present invention in a preferred example may be further configured to: the fixing bolt penetrates the supporting beam and the I-shaped steel beam from the lower part of the supporting beam simultaneously, so that the fixing nut is positioned above the I-shaped steel beam and is in threaded connection with the fixing bolt.
Through adopting above-mentioned technical scheme, set up fixation nut in the top, the staff in the top of being convenient for sets up the angle through fixation nut adjustment casting mould, has improved the operating efficiency to pouring the template.
The present invention in a preferred example may be further configured to: the end part of the fixing bolt screwing fixing nut is sleeved with a separation cap.
Through adopting above-mentioned technical scheme, concrete placement's in-process, the effectual screw thread to fixing bolt that sets up of partition cap has played the guard action for concrete still can dismantle fixing bolt through revolving of fixing bolt and fixation nut after the solidification moulding, makes most structures of support device can retrieve and recycle, and the staff only needs revolving through fixing bolt in addition revolves, can realize support device's dismantlement, easy operation, and the effect is showing.
The present invention in a preferred example may be further configured to: and a hexagonal groove matched with the fixing nut is formed in the separation cap.
Through adopting above-mentioned technical scheme, when the staff revolves the in-process of twisting to fixing bolt, probably can cause fixing nut and fixing bolt to rotate simultaneously to having increaseed fixing bolt and fixing nut's the efficiency that breaks away from, through mutually supporting of hexagonal groove and fixing nut, having restricted the rotation of separating the cap after the concrete curing, the staff revolves the in-process at fixing bolt, under the spacing of hexagonal groove, easily fixing bolt tears open, has improved dismantlement efficiency.
The present invention in a preferred example may be further configured to: the supporting beam is a beam body of a hollow square tube.
Through adopting above-mentioned technical scheme, a supporting beam adopts the hollow roof beam body, greatly reduced a supporting beam's weight, thereby the supporting pressure of fixing bolt has been alleviateed, and a supporting beam adopts square structure, thereby increased with square timber and fixing bolt's area of contact, thereby it is more balanced to make a supporting beam atress, the stability of support device support has been ensured, two I-steel roof beam clean spacings of current construction reach 3m moreover, adopt this kind of square steel formula supporting beam can guarantee that the amount of deflection of bottom plate accords with the designing requirement when top concrete placement.
In conclusion, the invention has the following beneficial effects:
firstly, space occupation is reduced, and convenience is provided for workers. Because the supporting beam is fixed between the adjacent I-shaped steel beams through the fixing bolt, and the support device is positioned above the I-shaped steel beams and is only in the space of one nut, the space occupation above the I-shaped steel beams is greatly reduced, and the obstruction to the walking of personnel above the I-shaped steel beams is reduced;
and secondly, working procedures are reduced, and efficiency is improved. The method solves the problem of complex operation mode of the traditional suspended formwork construction mode, and overcomes the defect of complex supporting step sequence of the traditional suspended formwork, and the bracket device can not influence the bridge deck structure after concrete pouring due to the mode of fixing through the fixing bolt and the fixing nut, thereby reducing the subsequent process of treating the bridge deck and greatly improving the construction efficiency;
thirdly, the net spacing between the two conventional I-shaped steel beams reaches 3m, and the adoption of the square steel type supporting beam can ensure that the deflection of the bottom plate meets the design requirement when the concrete above is poured;
and fourthly, the disassembly is convenient, and the repeated utilization rate is improved. In the process of concrete pouring, the partition cap is arranged to effectively protect the threads of the fixing bolt, so that concrete can be recycled and reused through screwing of the fixing bolt and the fixing nut after solidification and forming, and workers only need to screw the fixing bolt to achieve dismounting of the support device.
Drawings
FIG. 1 is a schematic structural diagram showing a bridge structure in the prior art;
FIG. 2 is a schematic structural view of a prior art stent device;
FIG. 3 is a schematic structural view of a holder device embodying the present embodiment;
FIG. 4 is a schematic view showing the relationship of the placement positions of the square timbers;
FIG. 5 is a schematic view showing the connection between the support beam and the upper flat beam;
fig. 6 is a schematic view of a hexagonal groove embodying a partition cap.
In the figure, 1, a support beam; 21. fixing the bolt; 22. fixing a nut; 3. an I-beam; 31. an upper flat beam; 32. a lower flat beam; 33. a stringer; 4. square wood; 5. pouring a template; 6. a partition cap; 61. a hexagonal groove; 71. pier studs; 72. a bridge deck; 73. a capping beam; 81. a fixed mount; 82. reinforcing steel bars; 83. angle steel; 84. PVC pipe.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
A concrete pouring support device for a steel-concrete combined beam comprises a support beam 1 and fixing bolts 21 respectively arranged at two ends of the support beam 1, wherein the fixing bolts 21 are used for fixing with adjacent I-shaped steel beams 3.
As shown in fig. 3, the clearance between adjacent i-beams 3 is 3m, and each i-beam 3 includes an upper flat beam 31 and a lower flat beam 32 which are parallel to each other, and a longitudinal beam 33 fixedly connected between the upper flat beam 31 and the lower flat beam 32. The longitudinal beams 33 are perpendicular to the upper and lower flat beams 31 and 32, respectively.
As shown in fig. 3, the fixing bolts 21 pass through the support beam 1 and the upper flat beam 31 from below the support beam 1, and a fixing nut 22 (shown in fig. 5) is screwed to an upper end of each fixing bolt 21, so that the i-beam 3 is suspended from the support beam 1 by screwing the fixing bolts 21 and the fixing nuts 22 (shown in fig. 5). A plurality of square timbers 4 are jointly placed on the adjacent supporting beams 1, and the square timbers 4 are parallel to each other and arranged at intervals. A pouring template 5 is placed above the square timbers 4 together, and the square timbers 4 are used for filling the pouring template 5, so that stable support is provided for the pouring template 5, the stress of the pouring template 5 is more balanced, and the deformation of the pouring template 5 is reduced. Because the fixing nut 22 is positioned above the upper flat beam 31, the worker can adjust the lifting position of the fixing bolt 21 by screwing the fixing nut 22, and further, the height of the pouring template 5 can be finely adjusted.
Since the mounting device is only secured by the threaded connection of the fastening screw 21 with the fastening nut 22 (shown here in fig. 5); the support device has simple structure and simple operation; after the support device is fixed, only the fixing nut 22 is positioned above the upper flat beam 31, so that the occupied space is small, the movement of workers above the I-shaped cross beam is not hindered, and the moving efficiency of the workers is indirectly improved; and when concrete pouring is accomplished and the back solidifies, the support device can not cause the destruction to the structure of bridge floor 72, compares the defect in the background art, and this support device has significantly reduced the time waste that causes to the hole filling on bridge floor 72, has solved the complicated operating means of traditional hanging formwork construction mode, has shielded the loaded down with trivial details shortcoming of traditional hanging formwork support preface to staff's efficiency of construction has been improved greatly.
As shown in fig. 4, two sets of square timbers 4 from the upper part of the adjacent support beam 1 are placed on the same support beam 1, and the two sets of square timbers 4 are inserted into the air and placed and lean against each other, so that the movement of the square timbers 4 in the same group is limited, the gap between the square timbers 4 in the same group is ensured, and the stable placement of the pouring template 5 is further ensured.
As shown in fig. 5, the supporting beam 1 is a hollow square tube, i.e. a square steel, which greatly reduces the weight of the supporting beam 1 and further reduces the supporting pressure of the fixing bolt 21 on the premise of ensuring good support. Because supporting beam 1 is square pipe, also make the square timber 4 take and put area of contact bigger on supporting beam 1, the atress is more stable, has ensured the holistic stability of support device, because two I-steel roof beams net spacing reach 3m moreover, adopts this kind of square steel formula supporting beam can guarantee that the amount of deflection of bottom plate accords with the designing requirement when top concrete placement.
As shown in fig. 5 and 6, a partition cap 6 made of PVC is sleeved on the end of the fixing bolt 21 screwed with the fixing nut 22 (here, as shown in fig. 5), and a hexagonal groove 61 matched with the outer contour of the fixing nut 22 is formed in the partition cap 6, so that the external thread of the fixing bolt 21 is protected. After the concrete solidification of pouring template 5 top, can restrict the rotation of separating cap 6, staff's accessible is twisted soon fixing bolt 21 for fixing nut 22 separates fixing bolt 21 and fixing nut 22 under hexagonal groove 61's is spacing, thereby retrieves supporting beam 1, square timber 4, pouring template 5, fixing bolt 21, the waste of the material that has significantly reduced, so that follow-up in-date use of working in the same period. Although the fixing nut 22 and the partition cap 6 are buried in the concrete, the fixing nut 22 and the partition cap 6 are low in cost, resulting in limited cost consumption. And through the revolving of fixing bolt 21, can realize dismantling support device, easy operation has improved staff's efficiency of construction greatly.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (8)
1. The utility model provides a concrete placement support device for steel-concrete composite beam which characterized in that: including setting up a supporting beam (1) between two adjacent I-steel roof beams (3), the both ends of a supporting beam (1) respectively are provided with a plurality of fixing bolt (21), fixing bolt (21) pierce through a supporting beam (1) and I-steel roof beam (3) upper surface simultaneously, and threaded connection has fixation nut (22) that are used for hanging supporting beam (1) in midair on every fixing bolt (21), the length direction of strutting arrangement along I-steel roof beam (3) is provided with a plurality of, pour template (5) and take and put on adjacent supporting beam (1).
2. A concrete pouring support device for a steel-concrete composite beam according to claim 1, wherein: the upper surface of the supporting beam (1) is provided with a plurality of square timbers (4) used for supporting the pouring template (5), and the square timbers (4) are simultaneously placed on the supporting beam (1) of the adjacent support device.
3. A concrete pouring support device for a steel-concrete composite beam according to claim 2, wherein: the square timbers (4) of two adjacent bracket devices are mutually parallel and arranged at intervals.
4. A concrete pouring support device for a steel-concrete composite beam according to claim 3, wherein: the same is that the square timber (4) in the two directions on the supporting beam (1) are inserted into the space and lean against each other.
5. A concrete pouring support device for a steel-concrete composite beam according to claim 1, wherein: the fixing bolt (21) penetrates the supporting beam (1) and the I-shaped steel beam (3) from the lower part of the supporting beam (1) at the same time, and the fixing nut (22) is located above the I-shaped steel beam (3) and is in threaded connection with the fixing bolt (21).
6. A concrete pouring support device for a steel-concrete composite beam according to claim 1, wherein: the end part of the fixing bolt (21) which is screwed with the fixing nut (22) is sleeved with a separation cap (6).
7. A concrete pouring support device for a steel-concrete composite beam according to claim 6, characterized in that: and a hexagonal groove (61) matched with the fixing nut (22) is formed in the separation cap (6).
8. A concrete pouring support device for a steel-concrete composite beam according to claim 1, wherein: the supporting beam (1) is a beam body of a hollow square tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010416292.2A CN111691300A (en) | 2020-05-17 | 2020-05-17 | A concrete placement support device for steel-concrete composite beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010416292.2A CN111691300A (en) | 2020-05-17 | 2020-05-17 | A concrete placement support device for steel-concrete composite beam |
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| Publication Number | Publication Date |
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| CN111691300A true CN111691300A (en) | 2020-09-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010416292.2A Pending CN111691300A (en) | 2020-05-17 | 2020-05-17 | A concrete placement support device for steel-concrete composite beam |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114134820A (en) * | 2021-12-17 | 2022-03-04 | 中国三冶集团有限公司 | Formwork support and construction method for I-shaped composite beam cast-in-place bridge deck |
| CN114541272A (en) * | 2022-03-31 | 2022-05-27 | 临沂市政集团有限公司 | Steel-concrete bridge deck structure for municipal construction and construction process thereof |
| CN115787504A (en) * | 2022-12-16 | 2023-03-14 | 中铁二局集团有限公司 | Construction method of hanger platform and hollow tower pier top solid section |
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| KR19990073084A (en) * | 1999-04-19 | 1999-10-05 | 김태환 | Formwork method using no prop for the floor concrete of the bridge |
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| CN201406844Y (en) * | 2009-05-20 | 2010-02-17 | 北京城乡建设集团有限责任公司 | Support of middle flange plate construction formwork of concrete-steel beam |
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| CN212247894U (en) * | 2020-05-17 | 2020-12-29 | 北京市政建设集团有限责任公司 | A concrete placement support device for steel-concrete composite beam |
-
2020
- 2020-05-17 CN CN202010416292.2A patent/CN111691300A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990073084A (en) * | 1999-04-19 | 1999-10-05 | 김태환 | Formwork method using no prop for the floor concrete of the bridge |
| KR20020001480A (en) * | 2000-06-26 | 2002-01-09 | 김준규 | Steel form for slab concrete applicable to P.C. beam or Steel Box methods |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114134820A (en) * | 2021-12-17 | 2022-03-04 | 中国三冶集团有限公司 | Formwork support and construction method for I-shaped composite beam cast-in-place bridge deck |
| CN114541272A (en) * | 2022-03-31 | 2022-05-27 | 临沂市政集团有限公司 | Steel-concrete bridge deck structure for municipal construction and construction process thereof |
| CN115787504A (en) * | 2022-12-16 | 2023-03-14 | 中铁二局集团有限公司 | Construction method of hanger platform and hollow tower pier top solid section |
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