CN106758821B - The method of cast-in-situ box girder side form support and its box girder formwork support device of use - Google Patents
The method of cast-in-situ box girder side form support and its box girder formwork support device of use Download PDFInfo
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- CN106758821B CN106758821B CN201611032240.5A CN201611032240A CN106758821B CN 106758821 B CN106758821 B CN 106758821B CN 201611032240 A CN201611032240 A CN 201611032240A CN 106758821 B CN106758821 B CN 106758821B
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- box girder
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
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- Engineering & Computer Science (AREA)
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- Structural Engineering (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
The invention discloses a kind of method of cast-in-situ box girder side form support and its box girder formwork support devices of use, it is that the I-steel (13) being supported on bracket is laid under bottom die of box-beam, and box girder web two sides are connected and fixed symmetrical stress support box beam side form using a kind of box girder formwork support device (12) and I-steel (13)；Box beam flange plate end template is supported using the vertical brace strut (14) ridden upon on I-steel (13).The support system formed using novel side mould support device that the present invention uses, horizontal force is symmetrically acted on I-steel and is not passed in bracket when casting concrete, is constructed safer.The triangle stress system that novel side mould support device is formed simultaneously is firm effectively side form to be avoided to deform, and improve construction quality.
Description
Technical field
The present invention relates to bridge construction technology fields, and in particular to a kind of method of cast-in-situ box girder side form support
And its a kind of novel box girder formwork support device used.
Background technique
In science of bridge building construction of cast-in-situ box-beam, the side form support of common box beam is fixed using steel pipe diagonal brace.And steel
Pipe diagonal brace is difficult to fix, and is easy to happen displacement, and box beam side form easily deforms when casting concrete, influences concrete finished product matter
Amount.
Lateral pressure when diagonal brace being used to make casting concrete forms lateral horizontal force to strutting system, is easy to lead
It causes bracket unstability and causes cave-in accident, and disassembly installation is more troublesome, leads to security risk.
Therefore disassembly installation is simple, guarantees the side form method for supporting and its support device of construction safety, quality, is cast-in-place case
It is very necessary in beam construction.Therefore, it is badly in need of a kind of convenience, effective box beam side template method for supporting and its branch in the prior art
Support arrangement.
Summary of the invention
The purpose of the present invention is to provide a kind of method of cast-in-situ box girder side form support and its a kind of novel box beams of use
Mould plate supporting device, this method and its device are using a kind of novel box girder formwork support device and ride upon the I-steel on bracket
The side form stable support body system of stress balance is connected into, construction of cast-in-situ box-beam quality and safety is improved.
Technical scheme is as follows:
Firstly, the invention proposes the methods of such a cast-in-situ box girder side form support, method includes the following steps:
The I-steel being supported on bracket is laid under bottom die of box-beam, box girder web two sides use a kind of box girder formwork support device and I-shaped
Steel is connected and fixed symmetrical stress support box beam side form；Utilize the vertical brace strut support box beam flange plate bed die ridden upon on I-steel
Plate.
Specifically, method includes the following steps: on box beam mount holder lay beyond box beam flange plate 100~
The I-steel of 150mm；It is fixed in box girder web two sides with I-steel using box girder formwork support device, and according to box beam height tune
Save bearing height；Supported rod erecting, which is laid, in I-steel two sides is used to support box beam flange plate bed die；Then box girder formwork is installed, two
Side symmetrically pours box beam concrete.
Secondly, the invention also provides the novel box girder formwork support devices that this method uses: the device is by vertical supporting
It lays and is supported on bracket under component and skewed horizontal load component composition, vertical supporting component and skewed horizontal load component and bottom die of box-beam
I-steel constitute triangular structure of right angle, wherein skewed horizontal load component be the triangular structure of right angle bevel edge；It is described perpendicular
It include the I-shaped steelwork and liftable steel plate of overlapping setting to support member, I-shaped steelwork bottom is fixed on the I-steel
On, at least two are equipped on I-shaped steelwork and adjusts bolt, are equipped in the longitudinal midline of liftable steel plate and are adjusted card slot, adjust
Bolt passes through adjusting card slot and rides over liftable steel plate on I-shaped steelwork；One end of the skewed horizontal load component is connected to institute
The top-side of I-shaped steelwork is stated, the other end is connected on the I-steel.
Wherein, the skewed horizontal load component includes retractable supports, the retractable supports both ends respectively pass through one it is adjustable
It is bolted a weldment, one of weldment is connected to the top-side of I-shaped steelwork, another weldment and one
A fitting I-steel weldment is fixedly connected, which is fixed on I-steel by U-bolt.
Further, the bottom of the I-shaped steelwork is equipped with bolt connection piece, which is bonded work with one
Word steel weldment is fixedly connected, which is fixed on I-steel by U-bolt.
Further, an I-steel weldment is connected at the top of the liftable steel plate be used for pop-up box beam flange plate I-shaped
Steel.
This apparatus main body of the invention is steel construction, is connected using I-shaped steelwork with one block of liftable steel plate, can be risen
Drop steel plate, which is equipped with adjustable bolt and adjusts steel plate, welds an I-shaped steel for adjusting bearing height, liftable steel plate bottom
Part is used for pop-up box beam flange plate.Side connect a retractable supports with adjustable bolt using weldment, welds steel in bottom
Component connects a U-bolt for fixing with I-steel, ultimately forms a stable triangular support configurations.
Compared with traditional construction of cast-in-situ box-beam technology utilization steel pipe diagonal brace supports side form, the present invention use using novel
The support system that side form support device is formed, horizontal force symmetrically acts on I-steel and is not passed to bracket when casting concrete
In, it constructs safer.The triangle stress system that novel side mould support device is formed simultaneously is firm effectively side form to be avoided to deform, and mention
High construction quality.This support system structure of the invention is simple, processing with it is convenient to assemble and disassemble, can also recycle, reach section
The about effect of cost has wide applicability and generalization.
Detailed description of the invention
Fig. 1 is traditional construction method schematic diagram using steel pipe diagonal brace support box beam side form；
Fig. 2 is the construction method schematic diagram of the invention using novel side mould support device box beam side form；
Fig. 3 is novel side mould support device schematic diagram of the invention；
Fig. 4 is novel side mould support device adjustable supports structure drawing of the invention；
Fig. 5 is novel side mould support device liftable steel plate schematic diagram of the invention；
Fig. 6 is novel side mould support device adjustable supports weldment of the invention, bolt drawing schematic diagram；
Fig. 7 is novel side mould support device arrangements of operations figure of the invention.
The label in accompanying drawing is: 1- I-steel weldment, 2- I-shaped steelwork, 3- adjustable bolt, 4- liftable steel plate, 5-
Adjusting card slot, 6- bolt connection piece, 7- adjusting bolt, 8- fitting I-steel weldment, 9-U type bolt, 10- retractable supports,
11- weldment, 12- box beam side form support device, 13- I-steel, 14- supported rod erecting, 15- side form diagonal brace, 16- flitch, 17- case
Beam flange plate I-steel.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.
Embodiment 1:
The construction method of the cast-in-situ box girder of the prior art is illustrated referring initially to Fig. 1, Fig. 1, it mainly uses diagonal brace 15 fixed
Box beam side form is supported on steel pipe support.
See that Fig. 2, Fig. 2 illustrate technical solution of the present invention again, it is to lay on box beam mount holder beyond the box beam wing
The I-steel 13 of 100~150mm of listrium；Using box girder formwork support device 12 of the invention in box girder web two sides and I-steel
13 is fixed, and according to box beam height adjusting support height.Supported rod erecting 14, which is laid, in 13 two sides of I-steel is used to support the box beam wing
Listrium bed die.Then box girder formwork is installed, two sides symmetrically pour box beam concrete.Due to the lateral pressure generated when casting concrete
Power is transferred on I-steel 13 by 12 horizontal symmetrical of box girder formwork support device, so that stress balance.It achieves in test
Good effect.
It sees Fig. 3-Fig. 6, when using this method of the invention, needs to use box girder formwork support device of the invention
12, which is made of vertical supporting component and skewed horizontal load component, vertical supporting component and skewed horizontal load component and box beam bottom
The I-steel 13 being supported on bracket is laid under mould and constitutes triangular structure of right angle, wherein skewed horizontal load component is the right angle
The bevel edge of triangular structure；Vertical supporting component includes the I-shaped steelwork 2 and liftable steel plate 4 of overlapping setting, I-shaped steel
2 bottom of part is fixed on the I-steel 13, and at least two are equipped on I-shaped steelwork 2 and adjusts bolt 3, in liftable steel plate
4 longitudinal midline, which is equipped with, adjusts card slot 5, adjusts bolt 3 across adjusting card slot 5 and liftable steel plate 4 is ridden over I-shaped steelwork 2
On；One end of skewed horizontal load component is connected to the top-side of I-shaped steelwork 2, and the other end is connected on I-steel 13.
As shown in Fig. 3,4,6, in the present embodiment, using fitting I-steel weldment 8 can preferably with 13 phase of I-steel
Fitting securely, is fixed by the U-bolt 9 and 13 phase of I-steel of fixed support body system, avoids moving in the horizontal direction and cause
Template position is not fixed firmly, to cause forming quality of products problem.It is adjusted the angle by adjustable bolt 7, in varied situations
Guarantee to carry out good fitting, supporting role to side form.Retractable supports 10 by weldment 11 and adjustable bolt 7 be bonded work
Word steel weldment 8 and I-shaped steelwork 2 are connected, and the length of the structure can be adjusted by twisting bolt, to meet in construction
Requirement of the different distance to shuttering supporting.By the adjusting to 7 bolt of adjustable bolt, in the case where meeting the requirement of distance,
Guarantee support system be bonded with structure, weldment 11 and I-steel 13 be bonded and it is secured.
It sees Fig. 5, by adjusting bolt 3 and adjusting card slot 5, the liftable steel plate 4 being connected on I-shaped steelwork 2 is adjusted
Its adjustable height, satisfaction play excellent support to the web of different height.Liftable steel plate 4 is clipped in I-shaped steelwork by two pieces
The steel plate of 2 two sides is constituted.
It sees Fig. 6, is secured the device on I-steel 13, protected with I-steel weldment 8 is bonded by adjusting U bolt 9
The stabilization of box girder formwork support device 12 is demonstrate,proved.
When construction, as shown in fig. 7, laying the I-steel for exceeding 100~150mm of box beam flange plate on box beam mount holder
13；It is fixed in box girder web two sides and I-steel 13 using box girder formwork support device 12, and according to box beam height adjusting support
Highly.Supported rod erecting 14, which is laid, in 13 two sides of I-steel is used to support box beam flange plate bed die.Then box girder formwork, two sides are installed
Symmetrically pour box beam concrete.Since the lateral pressure generated when casting concrete is horizontal right by box girder formwork support device 12
Title is transferred on I-steel 13, so that stress balance improves box girder construction safety and construction quality.
Certainly, above is specific application example of the invention, and there are other embodiments of the invention, all using equivalent
The technical solution that replacement or equivalent transformation are formed, all falls within protection scope of the presently claimed invention.
Claims (4)
1. a kind of novel box girder formwork support device, which is used for the construction method of cast-in-situ box girder side form support, and this method is
The I-steel (13) being supported on bracket is laid under bottom die of box-beam, box girder web two sides use a kind of box girder formwork support device
(12) symmetrical stress support box beam side form is connected and fixed with I-steel (13)；Utilize the supported rod erecting ridden upon on I-steel (13)
(14) box beam flange plate end template is supported；It is characterized by: the device is made of vertical supporting component and skewed horizontal load component, erect
The I-steel (13) being supported on bracket, which is laid, under to support member and skewed horizontal load component and bottom die of box-beam constitutes right angle three
Angular structure, wherein skewed horizontal load component is the bevel edge of the triangular structure of right angle；The vertical supporting component includes that overlapping is set
The I-shaped steelwork (2) and liftable steel plate (4) set, I-shaped steelwork (2) bottom is fixed on the I-steel (13), in work
Word steelwork (2) is equipped at least two and adjusts bolt (3), is equipped in the longitudinal midline of liftable steel plate (4) and adjusts card slot
(5), bolt (3) are adjusted to ride over liftable steel plate (4) on I-shaped steelwork (2) across card slot (5) are adjusted；The oblique branch
One end of support part part is connected to the top-side of the I-shaped steelwork (2), and the other end is connected on the I-steel (13).
2. novel box girder formwork support device according to claim 1, it is characterised in that: the skewed horizontal load component includes
Retractable supports (10), retractable supports (10) both ends respectively pass through an adjustable bolt (7) and connect a weldment (11),
One of weldment (11) is connected to the top-side of I-shaped steelwork (2), another weldment (11) is bonded work with one
Word steel weldment (8) is fixedly connected, which is fixed on I-steel (13) by U-bolt (9).
3. novel box girder formwork support device according to claim 1, it is characterised in that: the I-shaped steelwork (2)
Bottom is equipped with bolt connection piece (6), which is bonded I-steel weldment (8) with one and is fixedly connected, the fitting
I-steel weldment (8) is fixed on I-steel (13) by U-bolt (9).
4. novel box girder formwork support device according to claim 1, it is characterised in that: liftable steel plate (4) top
Portion connects an I-steel weldment (1) and is used for pop-up box beam flange plate I-steel (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611032240.5A CN106758821B (en) | 2016-11-22 | 2016-11-22 | The method of cast-in-situ box girder side form support and its box girder formwork support device of use |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611032240.5A CN106758821B (en) | 2016-11-22 | 2016-11-22 | The method of cast-in-situ box girder side form support and its box girder formwork support device of use |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106758821A CN106758821A (en) | 2017-05-31 |
| CN106758821B true CN106758821B (en) | 2019-02-19 |
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| CN201611032240.5A Active CN106758821B (en) | 2016-11-22 | 2016-11-22 | The method of cast-in-situ box girder side form support and its box girder formwork support device of use |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108457193B (en) * | 2018-02-06 | 2019-07-30 | 中国建筑第八工程局有限公司 | Box beam skew web plate formwork erecting structure and its erection method |
| CN112482236A (en) * | 2020-12-08 | 2021-03-12 | 龙信建设集团有限公司 | Viaduct box type cast-in-place concrete beam formwork support system and installation method thereof |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB190918528A (en) * | 1909-08-11 | 1910-07-28 | Philip Aylett | Improvements in and relating to the Construction of Concrete Arches and the like. |
| CN203411909U (en) * | 2013-08-19 | 2014-01-29 | 中铁四局集团建筑工程有限公司 | Support system for box girder |
| CN203475326U (en) * | 2013-08-29 | 2014-03-12 | 中交二公局第一工程有限公司 | Pressure-bearing strut of high-altitude cast-in-place box girder |
| CN105586830A (en) * | 2014-10-19 | 2016-05-18 | 杨宴敏 | Bridge template support |
| CN204940861U (en) * | 2015-08-28 | 2016-01-06 | 天津五市政公路工程有限公司 | Adjustable case beam side steel bracket |
| CN205116715U (en) * | 2015-10-10 | 2016-03-30 | 安徽卓良新材料有限公司 | Cast -in -situ box girder template bracing device |
| CN105887696B (en) * | 2016-05-25 | 2019-07-02 | 中交第一航务工程局有限公司 | A kind of variable cross-section mobile formwork adjustable integral template |
| CN106120561B (en) * | 2016-07-04 | 2017-09-26 | 中国三冶集团有限公司 | A kind of cast-in-situ box girder template construct installation method |
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