CN110565526A - Conveniently-disassembled side-span cast-in-place support suitable for bridge and construction method - Google Patents
Conveniently-disassembled side-span cast-in-place support suitable for bridge and construction method Download PDFInfo
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- CN110565526A CN110565526A CN201910688126.5A CN201910688126A CN110565526A CN 110565526 A CN110565526 A CN 110565526A CN 201910688126 A CN201910688126 A CN 201910688126A CN 110565526 A CN110565526 A CN 110565526A
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- steel
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- positioning hole
- span cast
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- 238000010276 construction Methods 0.000 title claims abstract description 32
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 64
- 239000010959 steel Substances 0.000 claims abstract description 64
- 239000004567 concrete Substances 0.000 claims abstract description 10
- 238000009434 installation Methods 0.000 claims description 19
- 230000007704 transition Effects 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 8
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000009415 formwork Methods 0.000 abstract 1
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 3
- 235000017491 Bambusa tulda Nutrition 0.000 description 3
- 241001330002 Bambuseae Species 0.000 description 3
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 3
- 239000011425 bamboo Substances 0.000 description 3
- 239000011120 plywood Substances 0.000 description 3
- 238000000638 solvent extraction Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
Classifications
-
- 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
Abstract
The invention relates to the technical field of bridge engineering, and particularly discloses a conveniently-disassembled side span cast-in-place support suitable for a bridge and a construction method. The invention is provided with the limiting slide block and the limiting slide groove, when the first positioning hole and the second positioning hole are vertically collinear, the fastening bolt is aligned to the first positioning hole and the second positioning hole, at the moment, the first I-shaped steel can be fixedly installed, the bracket has larger bearing load and stronger rigidity, and is provided with a plurality of steel pipes which are supported by the plurality of steel pipes, so that two side formworks can be prevented from expanding outwards when the web concrete is poured, and the construction quality of the side span cast-in-place section is ensured.
Description
Technical Field
The invention relates to the technical field of bridge engineering, in particular to a side span cast-in-place support convenient to disassemble and assemble and a construction method.
Background
the construction of the side span cast-in-place section is a non-negligible link, a special support system needs to be set up due to the fact that the section is large, and the construction is carried out by setting up a temporary full support, few steel pipe supports and a fixed triangular support construction platform from the ground according to a common construction method.
Patent application publication No. CN 208379451U discloses a side span cast-in-place support, which comprises a first support upright post, a second support upright post and a combined support; this cast-in-place support atress of side span is reasonable and the support is firm, and the tie-beam can also regard as follow-up case roof beam sideslip to target in place the back, carries out the bridge of firm connection with case roof beam and cast-in-place support, and the structure is nimble, can realize the diversification of support function.
However, in practical use, there still exist many disadvantages, such as inconvenience in quickly installing the first i-beam.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a side span cast-in-place support convenient to disassemble and assemble and a construction method, wherein the limit slide block and the limit slide groove are arranged, the limit slide block is placed in the limit slide groove in the connecting piece, when the first locating hole and the second locating hole are vertically collinear, the first locating hole and the second locating hole are aligned by using a fastening bolt, and at the moment, the first I-steel can be fixedly installed, wherein the first I-steel is convenient to install and disassemble, the support bears a large load and has high rigidity, so that the problems in the background art are solved.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a cast-in-place support of side span and construction method convenient to dismouting suitable for bridge, includes the basal plane, the internally mounted of basal plane has basic base, and the inside of basal plane is close to one side pre-buried basic mound of basic base, the top of basic mound is connected with the transition mound, and pours fixedly between basic mound and the transition mound, the top of basic base is provided with omnipotent member, the top of omnipotent member is provided with the connecting piece, the top of connecting piece is provided with first I-steel, bailey piece is installed on the top of first I-steel.
Preferably, the top end surface of the connecting piece is provided with a limiting sliding groove, the two sides of the top end surface of the connecting piece, which are close to the limiting sliding groove, are provided with second positioning holes, and the axial section of the limiting sliding groove is in an inverted T shape.
preferably, the bottom surface of the first I-steel is provided with a limiting slide block, the surface of the limiting slide block is provided with a first positioning hole in a penetrating mode, the axial section of the limiting slide block is T-shaped, and the limiting slide block is matched with the limiting sliding groove.
Preferably, the second positioning hole is embedded with a fastening bolt, and the second positioning hole and the first positioning hole are vertically arranged in a collinear manner.
Preferably, the top end of the Bailey piece is provided with a second I-beam, and the surface of the top end of the second I-beam is provided with a steel pipe.
Preferably, the top end surface of steel pipe is seted up cast-in-place section, and the diameter of steel pipe sets up to 48cm, the quantity of steel pipe is provided with a plurality ofly, and welds between a plurality of steel pipes.
a construction method of a side span cast-in-place support which is suitable for bridges and convenient to disassemble and assemble comprises the following steps:
Step one, setting up a cast-in-place support: multiple groups of anchor plate embedded parts are embedded in the transition pier, the transition pier and the foundation pier are pile foundations, the universal rod piece and the steel pipes form a support bracket together, and side span cast-in-place operation can be carried out;
step two, bottom web plate construction: the method comprises the steps of bottom die installation, web plate outer side film installation, bottom web plate steel bar prestress installation, web plate inner side film installation and bottom web plate concrete pouring;
Thirdly, roof construction: the method comprises the steps of top plate template installation, top plate prestress, steel bar installation and top plate concrete pouring.
The invention has the technical effects and advantages that:
1. According to the invention, the limiting slide block and the limiting slide groove are arranged, the limiting slide block is placed in the limiting slide groove in the connecting piece, when the first positioning hole and the second positioning hole are vertically collinear, the first positioning hole and the second positioning hole are aligned by using the fastening bolt, and at the moment, the first I-shaped steel can be fixedly installed, wherein the first I-shaped steel is convenient to install and disassemble, and the bracket bears a large load and has strong rigidity;
2. According to the invention, the plurality of steel pipes are arranged, the bottom and the side molds of the side span cast-in-place section are made of steel templates, the inner mold is made of bamboo plywood in a partitioning manner, the side molds are installed on site, and the steel pipes are supported, so that the two side templates can be prevented from expanding outwards when the web plate concrete is poured, the construction quality of the side span cast-in-place section is ensured, the operation is convenient, the construction safety is ensured, the construction efficiency is improved, and the construction cost is reduced.
drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
fig. 2 is a schematic structural diagram of the present invention.
Fig. 3 is a schematic perspective view of a first i-steel according to the present invention.
The reference signs are: the steel pipe pile foundation comprises a foundation surface 1, a foundation base 2, a foundation pier 3, a transition pier 4, a universal rod 5, a connecting piece 6, a first I-steel 7, a second I-steel 8, a steel pipe 9, a cast-in-place section 10, a Bailey sheet 11, a limiting sliding block 12, a first positioning hole 13, a limiting sliding groove 14, a second positioning hole 15 and a fastening bolt 16.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to fig. 1 to 3 in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all 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 invention.
the invention discloses a side span cast-in-place support convenient to disassemble and assemble and suitable for a bridge, which comprises a foundation surface 1, wherein a foundation base 2 is installed inside the foundation surface 1, a foundation pier 3 is embedded on one side, close to the foundation base 2, inside the foundation surface 1, the top end of the foundation pier 3 is connected with a transition pier 4, and the foundation pier 3 and the transition pier 4 are fixedly poured.
Referring to the attached drawings 1-3 in the specification, the top end of the foundation base 2 of the side span cast-in-place support convenient to disassemble and assemble and suitable for bridges in the embodiment is provided with a universal rod piece 5, the top end of the universal rod piece 5 is provided with a connecting piece 6, the top end of the connecting piece 6 is provided with a first i-shaped steel 7, and the top end of the first i-shaped steel 7 is provided with a bailey piece 11.
Furthermore, a limiting sliding groove 14 is formed in the top end surface of the connecting piece 6, second positioning holes 15 are formed in two sides, close to the limiting sliding groove 14, of the top end surface of the connecting piece 6, and the shape of the axial section of the limiting sliding groove 14 is inverted T-shaped.
Furthermore, a limiting slide block 12 is arranged on the bottom end surface of the first i-beam 7, a first positioning hole 13 is formed in the surface of the limiting slide block 12 in a penetrating mode, the axial section of the limiting slide block 12 is in a T shape, the limiting slide block 12 is matched with a limiting sliding groove 14, a fastening bolt 16 is embedded into the second positioning hole 15, and the second positioning hole 15 and the first positioning hole 13 are vertically arranged in a collinear mode.
The implementation scenario is specifically as follows: in the in-service use process, transition mound 4 forms through reinforced concrete placement with basic mound 3, stability is stronger, it is firm to support, wherein omnipotent member 5 is as supporting the mound, bailey piece 11 is as cast-in-place segmentation support, be difficult for receiving external environment's interference, can put into spacing spout 14 in connecting piece 6 with spacing slider 12 on first I-steel 7 bottom surface, when first locating hole 13 and the vertical collineation of second locating hole 15, use fastening bolt 16 to aim at first locating hole 13 and second locating hole 15, can carry out fixed mounting to first I-steel 7 this moment, wherein first I-steel 7 installation dismantles conveniently, the support bears the load great and rigidity is stronger.
Referring to the attached drawings 1-2 in the specification, a second i-beam 8 is arranged at the top end of a bailey piece 11 of the side-span cast-in-place support which is suitable for being mounted and dismounted and is convenient to mount and dismount of a bridge, and a steel pipe 9 is arranged on the surface of the top end of the second i-beam 8.
further, cast-in-place section 10 is seted up on the top surface of steel pipe 9, and the diameter of steel pipe 9 sets up to 48cm, the quantity of steel pipe 9 is provided with a plurality ofly, and welds between a plurality of steel pipes 9.
A construction method of a side span cast-in-place support which is suitable for bridges and convenient to disassemble and assemble comprises the following steps:
Step one, setting up a cast-in-place support: a plurality of groups of anchor plate embedded parts are embedded in the transition pier 4, the transition pier 4 and the foundation pier 3 are pile foundations, the universal rod piece 5 and the steel pipes 9 form a support bracket together, and side span cast-in-place operation can be carried out;
Step two, bottom web plate construction: the method comprises the steps of bottom die installation, web plate outer side film installation, bottom web plate steel bar prestress installation, web plate inner side film installation and bottom web plate concrete pouring;
Thirdly, roof construction: the method comprises the steps of top plate template installation, top plate prestress, steel bar installation and top plate concrete pouring.
The implementation scenario is specifically as follows: when the steel tube structure is used, the steel tubes 9 are fixedly arranged on the top end surface of the second I-shaped steel 8, the steel tubes 9 form a U-shaped shape, the cast-in-place sections 10 are arranged among the steel tubes 9, the bottom of each side span cast-in-place section and the side molds are made of steel templates, the inner mold is made of bamboo plywood in a partitioning mode, the steel tubes 9 are installed on site, the steel tubes 9 are supported, the templates on two sides can be prevented from expanding outwards when the web concrete is poured, the construction quality of the side span cast-in-place sections is guaranteed, operation is convenient, construction safety is guaranteed, construction efficiency is improved, and construction cost is reduced.
The working principle of the invention is as follows:
referring to the attached drawings 1-3 in the specification, a limiting slide block 12 and a limiting slide groove 14 are arranged, the limiting slide block 12 is placed in the limiting slide groove 14 in the connecting piece 6, when a first positioning hole 13 and a second positioning hole 15 are vertically collinear, a fastening bolt 16 is used for aligning the first positioning hole 13 and the second positioning hole 15, at the moment, the first I-beam 7 can be fixedly installed, the first I-beam 7 is convenient to install and detach, and the support is large in bearing load and high in rigidity.
Referring to the attached drawings 1-2 of the specification, a plurality of steel pipes 9 are arranged, the bottom and the side molds of the side span cast-in-place section are made of steel templates, the inner mold is made of bamboo plywood in a block processing mode, the steel pipes 9 are installed on site, and the steel pipes 9 are supported, so that the two side molds can be prevented from expanding outwards when the web plate concrete is poured, the construction quality of the side span cast-in-place section is guaranteed, the operation is convenient, the construction safety is guaranteed, the construction efficiency is improved, and the construction cost is.
The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;
Secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the invention, only the structures related to the disclosed embodiments are referred to, other structures can refer to common designs, and the same embodiment and different embodiments of the invention can be combined with each other without conflict;
And finally: the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included in the scope of the present invention.
Claims (7)
1. The utility model provides a cast-in-place support of sidespan of being convenient for dismouting suitable for bridge, includes foundation surface (1), its characterized in that: the interior mounting of foundation face (1) has base (2), and one side that the inside of base (1) is close to base (2) is pre-buried has base mound (3), the top of base mound (3) is connected with transition mound (4), and pours fixedly between base mound (3) and transition mound (4), the top of base (2) is provided with omnipotent member (5), the top of omnipotent member (5) is provided with connecting piece (6), the top of connecting piece (6) is provided with first I-steel (7), bailey piece (11) are installed on the top of first I-steel (7).
2. The easy-to-dismount side-span cast-in-place support frame suitable for bridges of claim 1, wherein: the top end surface of the connecting piece (6) is provided with a limiting sliding groove (14), the top end surface of the connecting piece (6) close to two sides of the limiting sliding groove (14) is provided with second positioning holes (15), and the axial section of the limiting sliding groove (14) is in an inverted T shape.
3. the easy-to-dismount side-span cast-in-place support frame suitable for bridges of claim 2, wherein: the bottom end surface of the first I-shaped steel (7) is provided with a limiting slide block (12), a first positioning hole (13) is formed in the surface of the limiting slide block (12) in a penetrating mode, the axial section of the limiting slide block (12) is T-shaped, and the limiting slide block (12) is matched with a limiting sliding groove (14).
4. The conveniently-disassembled side-span cast-in-place support suitable for bridges of claim 3, wherein: and a fastening bolt (16) is embedded into the second positioning hole (15), and the second positioning hole (15) and the first positioning hole (13) are vertically arranged in a collinear manner.
5. the easy-to-dismount side-span cast-in-place support frame suitable for bridges of claim 1, wherein: the top of bailey piece (11) is provided with second I-steel (8), the top surface of second I-steel (8) is provided with steel pipe (9).
6. the conveniently-disassembled side-span cast-in-place support suitable for bridges of claim 5, wherein: the cast-in-place section (10) is arranged on the top end surface of the steel pipe (9), the number of the steel pipes (9) is multiple, and the steel pipes (9) are welded.
7. The construction method of the conveniently-disassembled side span cast-in-place bracket applicable to the bridge according to claim 1, characterized by comprising the following steps of:
step one, setting up a cast-in-place support: a plurality of groups of anchor plate embedded parts are embedded in the transition pier (4), the transition pier (4) and the foundation pier (3) are pile foundations, a universal rod piece (5) and a plurality of steel pipes (9) jointly form a support bracket, and side span cast-in-place operation can be carried out;
Step two, bottom web plate construction: the method comprises the steps of bottom die installation, web plate outer side film installation, bottom web plate steel bar prestress installation, web plate inner side film installation and bottom web plate concrete pouring;
Thirdly, roof construction: the method comprises the steps of top plate template installation, top plate prestress, steel bar installation and top plate concrete pouring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910688126.5A CN110565526A (en) | 2019-07-29 | 2019-07-29 | Conveniently-disassembled side-span cast-in-place support suitable for bridge and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910688126.5A CN110565526A (en) | 2019-07-29 | 2019-07-29 | Conveniently-disassembled side-span cast-in-place support suitable for bridge and construction method |
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| CN110565526A true CN110565526A (en) | 2019-12-13 |
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| CN201910688126.5A Pending CN110565526A (en) | 2019-07-29 | 2019-07-29 | Conveniently-disassembled side-span cast-in-place support suitable for bridge and construction method |
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|---|---|---|---|---|
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| CN102733307A (en) * | 2012-06-18 | 2012-10-17 | 中铁三局集团有限公司 | Method for constructing cast-in-place beam falsework |
| CN103194982A (en) * | 2013-03-25 | 2013-07-10 | 中交路桥建设有限公司 | Construction method for short cantilever support at bridge side span cast-in-situ segment |
| CN203144910U (en) * | 2013-03-23 | 2013-08-21 | 慈溪远志工业产品设计有限公司 | Frame structure for building construction |
| CN204385628U (en) * | 2014-12-19 | 2015-06-10 | 段举 | Bridge support frame |
| CN205000256U (en) * | 2015-09-15 | 2016-01-27 | 中交四航局第一工程有限公司 | Cast -in -place case roof beam of high mound of bridge construction support system |
| CN207714151U (en) * | 2017-12-07 | 2018-08-10 | 中交第三航务工程局有限公司 | A kind of construction bracket of Successive interference cancellation end bay Cast-in-Situ Segment |
| CN109057368A (en) * | 2018-08-23 | 2018-12-21 | 中国五冶集团有限公司 | Adjustable positioning moulding bed applied to spatial steel tube-truss assembling |
| CN208379451U (en) * | 2018-06-07 | 2019-01-15 | 中交路桥华南工程有限公司 | End bay cast-in-place support |
| CN211006346U (en) * | 2019-07-29 | 2020-07-14 | 南昌大学 | Cast-in-place support of side span of dismouting of being convenient for suitable for bridge |
-
2019
- 2019-07-29 CN CN201910688126.5A patent/CN110565526A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2734287A1 (en) * | 1995-05-19 | 1996-11-22 | Gtm | Concrete road bridge without steel structure |
| CN102733307A (en) * | 2012-06-18 | 2012-10-17 | 中铁三局集团有限公司 | Method for constructing cast-in-place beam falsework |
| CN203144910U (en) * | 2013-03-23 | 2013-08-21 | 慈溪远志工业产品设计有限公司 | Frame structure for building construction |
| CN103194982A (en) * | 2013-03-25 | 2013-07-10 | 中交路桥建设有限公司 | Construction method for short cantilever support at bridge side span cast-in-situ segment |
| CN204385628U (en) * | 2014-12-19 | 2015-06-10 | 段举 | Bridge support frame |
| CN205000256U (en) * | 2015-09-15 | 2016-01-27 | 中交四航局第一工程有限公司 | Cast -in -place case roof beam of high mound of bridge construction support system |
| CN207714151U (en) * | 2017-12-07 | 2018-08-10 | 中交第三航务工程局有限公司 | A kind of construction bracket of Successive interference cancellation end bay Cast-in-Situ Segment |
| CN208379451U (en) * | 2018-06-07 | 2019-01-15 | 中交路桥华南工程有限公司 | End bay cast-in-place support |
| CN109057368A (en) * | 2018-08-23 | 2018-12-21 | 中国五冶集团有限公司 | Adjustable positioning moulding bed applied to spatial steel tube-truss assembling |
| CN211006346U (en) * | 2019-07-29 | 2020-07-14 | 南昌大学 | Cast-in-place support of side span of dismouting of being convenient for suitable for bridge |
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