CN103382700B - Movable die frame girder device and method suitable for construction of single side widening box girder with large width - Google Patents

Movable die frame girder device and method suitable for construction of single side widening box girder with large width Download PDF

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Publication number
CN103382700B
CN103382700B CN201310214192.1A CN201310214192A CN103382700B CN 103382700 B CN103382700 B CN 103382700B CN 201310214192 A CN201310214192 A CN 201310214192A CN 103382700 B CN103382700 B CN 103382700B
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girder
support bracket
triangular support
crossbeam
ear plate
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CN103382700A (en
Inventor
刘勇
杨如刚
冯家彪
邓亨长
唐中波
沈帅
伏冠西
龙德
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Sichuan Road and Bridge Group Co Ltd
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Sichuan Road and Bridge Group Co Ltd
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Abstract

The invention discloses a movable die frame girder device suitable for the construction of a widening box girder with large width, which is characterized by comprising a triangle support frame, wherein the triangle support frame and the die frame girder form an integral, and the triangle support frame is connected with a template cross beam; the triangle support frame comprises triangle support frame horizontal rods and triangle support frame slanting rods which are fixedly connected through connecting pins; the triangle support frame horizontal rods and girder upper lug plate seats are fixedly connected through connecting pins; the triangle support frame slanting rods and girder lower lug plate seats are fixedly connected through connecting pins; a vertical jack on the triangle support frame supports and connects the template cross beam and the die frame girder to form an integral. According to the application of the invention, through the utilization of the device, the lateral stiffness and bearing capacity of the movable die frame can be improved, and the construction requirements of the widening box girder with the large width are satisfied, under the condition of not increasing the cross beam fracture surface size.

Description

Adapt to mobile formwork girder device and the method for operating thereof of the monolateral box girder construction that broadens of large width
Technical field
The present invention relates to field of civil engineering, is specifically the mobile formwork lateral means that a kind of large width that is adapted to construct becomes broad box girder.
Background technology
Mobile formwork bridge fabrication machine is that one carries template, bridge is carried out to the construction machinery of cast in situs.Its main feature: construction quality is good, and constructing operation is easy, with low cost etc.Abroad, being employed in widely in the Construction of continuous beam of road bridge, railway bridge, is comparatively advanced construction method.Domestic beginning uses on speedway, special line for passenger trains.Conventional mobile formwork is applicable to the construction waiting broad box girder.Broaden for large width, beam section Cast-in-place concrete side measures large case beam, adopt Construction Through Form on Traveler, there is no successful experience can use for reference.Because mobile formwork carries the equipment of template as one, large width Roadway Construction is carried out under the prerequisite not increasing crossbeam cross dimensions, its template crossbeam is difficult to meet large width and broadens box girder construction demand lateral stiffness, intensity and stability, if adjust by increasing crossbeam cross dimensions, so greatly will increase the weight of template crossbeam, increase mobile formwork template crossbeam and pacify the difficulty of construction of tearing open; Due to the large width of case beam, crossbeam length is large, and during folding mould, template crossbeam jib-length is large, in template crossbeam and girder, spiral top junction, outside can the larger pulling force of monolateral generation, and easily cause structural deterioration, its anti-overturning is poor, and crossbeam amount of deflection is large, folding mould constructional difficulties.Therefore need to adopt a kind of new structure to solve problem.
Summary of the invention
The object of the present invention is to provide a kind of mobile formwork girder adjusting device, be well positioned to meet lateral stiffness, intensity and the stability of mould bases crossbeam when large width of constructing becomes broad box girder, structure is avoided to produce moderate finite deformation, guarantee the safety during folding of template crossbeam, this device utilizes conventional crane gear can carry out assembling and installing, and is convenient to concrete operations.
The present invention is achieved in that structure kind adapts to large width and to broaden the mobile formwork girder device of box girder construction, and it is characterized in that: comprise triangular support bracket, triangular support bracket and mould bases girder form entirety, triangular support bracket support and connection template crossbeam;
Described triangular support bracket comprises triangular support bracket horizon bar and triangular support bracket brace, and bracing frame horizon bar and triangular support bracket brace fix pin joint by connecting pin;
Triangular support bracket horizon bar and girder upper ear plate seat fix pin joint by connecting pin; Triangular support bracket brace and girder lower ear plate seat fix pin joint by connecting pin, and on triangular support bracket, vertical jack support and connection template crossbeam and mould bases girder form entirety.
According to a kind of mobile formwork girder device adapting to the monolateral box girder construction that broadens of large width of the present invention, it is characterized in that: the upper ear plate seat in the girder widening side, outside arranged, lower ear plate seat keep with one heart, widen lower ear plate on the girder of side to be connected with described triangular support bracket by connecting pin, gusseted can horizontal direction rotate, thus improve mobile formwork lateral stiffness, bearing capacity and stability, be convenient to template crossbeam folding mould, ensure the safety of its structure, meet the needs that the large width of construction becomes broad box girder.
Adapt to large width to broaden the method for operating of mobile formwork girder device of box girder construction, it is characterized in that: comprising:
When mobile formwork builds state, widen in the girder of side and outside arranges concentric upper ear plate and lower ear plate, triangular support bracket horizon bar and brace triangular support bracket brace fix pin joint by connecting pin, crane gear is utilized triangular support bracket horizon bar and triangular support bracket brace vertically to be sling, triangular support bracket horizon bar is inserted girder upper ear plate seat and fixes pin joint by connecting pin, then triangular support bracket brace is placed on girder lower ear plate seat and fixes pin joint by connecting pin, triangular support bracket jackscrew supporting traverse (outside jack and template crossbeam come to nothing in girder) thus form stable triangular stress morphology, under the condition not increasing crossbeam weight, reduce mobile formwork lateral stiffness, intensity and the stability under crossbeam span raising construction large width change broad box girder operating mode, meet construction needs,
When mould bases via hole state, during template crossbeam folding mould, interior outside triangular support bracket is horizontal development state, by triangular support bracket support shuttering crossbeam, jib-length during template crossbeam folding mould can be reduced, thus reduce its amount of deflection, facilitate folding mould to construct, improve its anti-overturning.When pier is crossed in mould bases vertical shift die sinking, mould lateralis frame is horizontal development state support shuttering crossbeam; Inner side triangular support bracket can make it horizontally rotate 90 ° with chain block, and triangular support bracket is folded state, and girder was walked pier shaft, avoided itself and pier shaft to interfere.After template crossbeam crosses pier, rotary triangle is supported for horizontal development state, facilitates its matched moulds.
In the girder widening side, outside arranging upper and lower ear plate base makes triangular support bracket and mould bases girder form entirety by connecting pin, triangular support bracket support and connection template crossbeam (in girder, outside spiral top and template crossbeam come to nothing).Being rotated into horizontal development state support shuttering crossbeam when building state by widening side girder triangular support bracket, reducing template crossbeam span.Under the condition not increasing the deadweight of template beam structure, increase mould bases transverse strength and rigidity, meet the construction needs that large width becomes broad box girder.When mould bases via hole, utilize triangular support bracket horizontal development support shuttering crossbeam, reduce jib-length during its folding, easy construction and safety thereof when guaranteeing crossbeam folding mould.When pier is crossed in mobile formwork vertical shift simultaneously, triangular support bracket horizontal direction half-twist inside girder, avoids widening triangular support bracket and pier shaft inside the girder of side and interferes, facilitate via hole.
The invention has the advantages that: mobile formwork girder adjusting device, be well positioned to meet lateral stiffness, intensity and the stability of mould bases crossbeam when large width of constructing becomes broad box girder, structure is avoided to produce moderate finite deformation, guarantee the safety during folding of template crossbeam, this device utilizes conventional crane gear can carry out assembling and installing, and is convenient to concrete operations.Widen lower ear plate on the girder of side to be connected with triangular support bracket by connecting pin, gusseted can horizontal direction rotate, thus improve mobile formwork lateral stiffness, intensity and stability, be convenient to template crossbeam folding mould, ensure the safety (improving overturning or slip resistance analysis performance) of its structure, meet the needs that the large width of construction becomes broad box girder.By enforcement of the present invention: (1), under the condition not increasing crossbeam cross dimensions, utilize this device can improve mobile formwork lateral stiffness and intensity, meet large width and to broaden box girder construction needs; (2), triangular support bracket is simple and reliable for structure, guarantees structural safety and the easy construction of template crossbeam during folding mould, and can horizontally rotate when crossing pier, avoids inner side triangular support bracket and pier shaft to interfere and facilitates girder vertical shift to cross pier; (3), install, change convenient, processing factory in, scene utilizes simple tool can carry out installing and changing.
Accompanying drawing explanation
Fig. 1 is the unitary construction figure that in the present invention, adjusting device widened by mobile formwork girder
Fig. 2 is middle girder otic placode of the present invention cover constructional drawing
Fig. 3 a is middle girder upper ear plate seat schematic side view of the present invention
Fig. 3 b is middle girder upper ear plate seat schematic front view of the present invention
Fig. 3 c is middle girder lower ear plate seat schematic side view of the present invention
Fig. 3 d is middle girder lower ear plate seat schematic front view of the present invention
Fig. 4 a is intermediate cam bracing frame horizon bar constructional drawing of the present invention
Fig. 4 b is intermediate cam bracing frame horizon bar schematic top plan view of the present invention
Fig. 4 c is intermediate cam bracing frame horizon bar schematic side view of the present invention
Fig. 5 a is intermediate cam bracing frame brace constructional drawing of the present invention
Fig. 5 b is intermediate cam bracing frame brace schematic top plan view of the present invention
Fig. 5 c is intermediate cam bracing frame brace schematic side view of the present invention
Fig. 6 is connecting pin constructional drawing in the present invention
Fig. 7 a-7e is tripod scheme of installation of the present invention
Fig. 8 be mobile formwork die sinking when crossing pier girder widen adjusting device and use schematic diagram
In figure: 1, triangular support bracket horizon bar, 2, triangular support bracket brace, 3, girder upper ear plate seat, 4, girder lower ear plate seat, 5, connecting pin, 6, girder, 7, pier shaft, 8, crossbeam.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in detail, is clearly and completely described the technical scheme in the embodiment of the present invention, and obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
As shown in the figure: the invention provides and a kind ofly adapt to large width and to broaden the mobile formwork girder device of box girder construction, be well positioned to meet lateral stiffness, intensity and the stability of mould bases crossbeam when large width of constructing becomes broad box girder, structure is avoided to produce moderate finite deformation, guarantee the safety during folding of template crossbeam, this device utilizes conventional crane gear can carry out assembling and installing, and is convenient to concrete operations; This device comprises triangular support bracket, and triangular support bracket and mould bases girder form entirety, triangular support bracket support and connection template crossbeam.
Described triangular support bracket comprises triangular support bracket horizon bar 1 and triangular support bracket brace 2, and bracing frame horizon bar 1 and triangular support bracket brace 2 fix pin joint by connecting pin 5;
Triangular support bracket horizon bar 1 and girder upper ear plate seat 3 fix pin joint by connecting pin 5; Triangular support bracket brace 2 and girder lower ear plate seat 4 fix pin joint by connecting pin 5, and on triangular support bracket, vertical jack support and connection template crossbeam and mould bases girder form entirety.
The upper ear plate seat 3 in the girder widening side, outside arranged, lower ear plate seat 4 keep concentric.Widen lower ear plate 3,4 on the girder of side to be connected with described triangular support bracket by connecting pin 5, gusseted can horizontal direction rotate, thus improve mobile formwork lateral stiffness, intensity and stability, be convenient to template crossbeam folding mould, ensure the safety of its structure, meet the needs that the large width of construction becomes broad box girder.
Adapt to large width to broaden the method for operating of mobile formwork girder device of box girder construction, comprising:
When mobile formwork builds state, widen in the girder of side and outside arranges concentric upper ear plate 3 and lower ear plate (4), triangular support bracket horizon bar 1 and triangular support bracket brace 2 fix pin joint by connecting pin 5, crane gear is utilized triangular support bracket horizon bar 1 and triangular support bracket brace 2 vertically to be sling, horizon bar 1 is inserted girder upper ear plate seat 3 and fixes pin joint by connecting pin 5, then triangular support bracket brace 2 is placed on girder lower ear plate seat 4 and fixes pin joint by connecting pin 5, triangular support bracket jackscrew supporting traverse (outside jack and template crossbeam come to nothing in girder) thus form stable triangular stress morphology.Under the condition not increasing crossbeam weight, reduce mobile formwork lateral stiffness, intensity and the stability under crossbeam span raising construction large width change broad box girder operating mode, meet construction needs.
When mould bases via hole state, during template crossbeam folding mould, interior outside triangular support bracket is horizontal development state, by triangular support bracket support shuttering crossbeam, jib-length during template crossbeam folding mould can be reduced, thus reduce its amount of deflection, facilitate folding mould to construct, improve its anti-overturning.When pier is crossed in mould bases vertical shift die sinking, mould lateralis frame is horizontal development state support shuttering crossbeam; Inner side triangular support bracket can make it horizontally rotate 90 ° with chain block, and triangular support bracket is folded state, and girder was walked pier shaft, avoided itself and pier shaft to interfere.After template crossbeam crosses pier, rotary triangle is supported for horizontal development state, facilitates its matched moulds.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.

Claims (1)

1. adapt to large width to broaden the mobile formwork girder device of box girder construction, it is characterized in that: comprise triangular support bracket, triangular support bracket and mould bases girder form entirety, triangular support bracket support and connection template crossbeam;
Described triangular support bracket comprises triangular support bracket horizon bar (1) and triangular support bracket brace (2), and bracing frame horizon bar (1) and triangular support bracket brace (2) are by the fixing pin joint of connecting pin (5);
Triangular support bracket horizon bar (1) and girder upper ear plate seat (3) are by the fixing pin joint of connecting pin (5); Triangular support bracket brace (2) and girder lower ear plate seat (4) are by the fixing pin joint of connecting pin (5), and on triangular support bracket, vertical jack support and connection template crossbeam and mould bases girder form entirety; The upper ear plate seat (3) in the girder widening side, outside arranged, lower ear plate seat (4) keep with one heart, widen lower ear plate on the girder of side (3,4) to be connected with described triangular support bracket by connecting pin (5), gusseted can horizontal direction rotate, thus improve mobile formwork lateral stiffness, bearing capacity and stability, be convenient to template crossbeam folding mould, ensure the safety of its structure, meet the needs that the large width of construction becomes broad box girder;
The broaden method of operating of mobile formwork girder device of box girder construction of the large width of described adaptation is as follows:
Comprise:
A, when mobile formwork builds state, widen in the girder of side and outside arranges concentric upper ear plate seat (3) and lower ear plate seat (4), triangular support bracket horizon bar (1) and brace triangular support bracket brace (2) are by the fixing pin joint of connecting pin (5), crane gear is utilized triangular support bracket horizon bar (1) and brace triangular support bracket brace (2) vertically to be sling, triangular support bracket horizon bar (1) is inserted girder upper ear plate seat (3) by the fixing pin joint of connecting pin (5), then triangular support bracket brace (2) is placed on girder lower ear plate seat (4) by the fixing pin joint of connecting pin (5), triangular support bracket jackscrew supporting traverse thus form stable triangular stress morphology, under the condition not increasing crossbeam weight, reduce mobile formwork lateral stiffness, bearing capacity and the stability under crossbeam span raising construction large width change broad box girder operating mode, meet construction needs,
B, when mould bases builds state, during template crossbeam folding mould, interior outside triangular support bracket is horizontal development state, by triangular support bracket support shuttering crossbeam, jib-length during template crossbeam folding mould can be reduced, thus reduce its amount of deflection, facilitate folding mould to construct, improve its anti-overturning,
When pier is crossed in mould bases vertical shift die sinking, lateralis frame is horizontal development state support shuttering crossbeam; Inner side triangular support bracket can make it horizontally rotate 90 ° with chain block, and triangular support bracket is folded state, and girder was walked pier shaft, avoided itself and pier shaft to interfere;
After template crossbeam crosses pier, rotary triangle is supported for horizontal development state, facilitates its matched moulds.
CN201310214192.1A 2013-06-03 2013-06-03 Movable die frame girder device and method suitable for construction of single side widening box girder with large width Active CN103382700B (en)

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CN103452052B (en) * 2013-08-26 2015-03-18 中铁六局集团有限公司 Movable mold hanging equipment for closing swivel bridges and closure section construction method
CN113529549A (en) * 2021-07-30 2021-10-22 四川公路桥梁建设集团有限公司 Bridge head pavement subsidence nondestructive quantitative detection and trenchless rapid treatment grouting construction method

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CN101660296A (en) * 2009-09-08 2010-03-03 中铁九局集团有限公司 Method for casting concrete 0# block support by continuous beam cantilever
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CN101942810A (en) * 2010-10-18 2011-01-12 中铁十九局集团第二工程有限公司 Independent bridge pier cover beam formwork bracket
CN201817774U (en) * 2010-10-22 2011-05-04 山东省路桥集团有限公司 Triangular support of support system
CN202000262U (en) * 2011-02-14 2011-10-05 佛山市三水中德路桥材料有限公司 Bridge triangular hanging basket

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Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2788802A1 (en) * 1999-01-21 2000-07-28 Coffrages Nony Formwork assembly for cantilever bridge apron has triangular structures each with two beams forming dihedron with angular opening rapidly set and locked with leg
CN201495493U (en) * 2009-06-05 2010-06-02 中交第一公路工程局有限公司 Counter-pressure preloading device of hydraulic jack
CN101660296A (en) * 2009-09-08 2010-03-03 中铁九局集团有限公司 Method for casting concrete 0# block support by continuous beam cantilever
CN101942810A (en) * 2010-10-18 2011-01-12 中铁十九局集团第二工程有限公司 Independent bridge pier cover beam formwork bracket
CN201817774U (en) * 2010-10-22 2011-05-04 山东省路桥集团有限公司 Triangular support of support system
CN202000262U (en) * 2011-02-14 2011-10-05 佛山市三水中德路桥材料有限公司 Bridge triangular hanging basket

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