CN103628408A - Construction method for splay supporting frame of bridge cast-in-place concrete formwork - Google Patents
Construction method for splay supporting frame of bridge cast-in-place concrete formwork Download PDFInfo
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- CN103628408A CN103628408A CN201310538941.6A CN201310538941A CN103628408A CN 103628408 A CN103628408 A CN 103628408A CN 201310538941 A CN201310538941 A CN 201310538941A CN 103628408 A CN103628408 A CN 103628408A
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Abstract
The invention discloses a construction method for a splay supporting frame of a bridge cast-in-place concrete formwork. Multiple vertical rods are lined up in the transverse direction of a bridge on the inner sides of two pier studs in the longitudinal direction of the bridge. The lower ends of all the vertical rods and pier stud pile caps are anchored, and the lower portions, the middle portions and the upper portions of all the vertical rods are anchored to pier stud bodies respectively. The upper ends of the vertical rods are connected through end distribution beams. In the transverse direction of the bridge, the middle portions of all the vertical rods are mutually connected through cross arms in the transverse direction. The lower ends of all the vertical rods are respectively connected with the lower ends of inclined legs, and the upper ends of the two inclined legs in the longitudinal direction of the bridge are connected through a back shore. The middle portions of the inclined legs in the longitudinal direction of the bridge are connected with the middle portions of the vertical rods through cross arms in the longitudinal direction. The middle portions of all the inclined legs in the transverse direction of the bridge are connected through cross arms in the transverse direction. The upper ends of all the inclined legs are connected through middle distribution beams. Multiple bailey trusses manufactured in advance are installed on the end distribution beams and the middle distribution beams in the longitudinal direction of the bridge, so that the splay support stable structure is formed. According to the construction technology, underneath passage can not be affected, no temporary foundation is needed, installation and detaching are easy, and the cyclic utilization rate is high.
Description
Technical field
The present invention relates to cast-in-place concrete construction of bridge technology, particularly a kind of construction method of Cast-in-situ Beam formwork-support.
Background technology
The current domestic formwork-support for Cast-in-situ Beam, general full framing method and the steel pipe pile Bailey truss system of adopting, these two kinds of structures all have drawback in various degree: full framing method need below gather bowl fastening type support or tube and couple scaffold, template system is set on it; This form is lower to foundation requirement, but steel pipe spacing is little, and conventional spacing, between 30～90cm, cannot meet the current requirement in below, and support height is unsuitable excessive, is generally used in 15m height.Steel pipe pile Bailey truss system arranges template system on shellfish truss, below arranges steel pipe that diameter is larger as stress system, and single steel pipe is stressed all larger, has the requirement that can meet the current and height in below, but it is high that the method requires interim basis, a large amount of economic inputs of temporary needs.
Summary of the invention
The construction technology that the object of this invention is to provide a kind of new bridge cast in place concrete form bracing frame, can meet below current unaffected, and without any need for interim basis, installs and dismantle simply, and cyclic utilization rate is high.
For reaching above object, the present invention takes following technical scheme to be achieved:
A construction method for bridge cast in place concrete form Eight characters bracing frame, is characterized in that, comprises the steps:
(1) montant is installed
In two pier studs inner sides along the bridge, many montants are in one line along cross-bridges direction, each montant lower end and the anchoring of pier stud cushion cap, the bottom of each montant, middle part and top respectively with pier shaft anchoring; Montant upper end is connected by end distribution beam; In cross-bridges direction, each montant middle part is connected to each other by horizontal stull;
(2) battered leg and shore installation
Each montant lower end all connects a lower end of adjusting in advance the battered leg at angle of inclination, between two battered leg upper ends along the bridge by shoring connection; Battered leg middle part is along the bridge connected by longitudinal stull with montant middle part; Each battered leg middle part of cross-bridges direction connects by horizontal stull, and each battered leg upper end of cross-bridges direction is connected by middle part distribution beam;
(3) trussed construction is installed
By crane order lifting for many previously prepared good Bailey truss, be arranged on along the bridge in end and middle part distribution beam, form Eight characters supporting & stablizing structure.
(4) dismounting of Eight characters bracing frame
After Cast-in-situ Beam concrete construction, according to trussed construction, distribution beam, shore, the order of battered leg, montant removes successively.
In said method, described in cross-bridges direction, each montant, each battered leg, except middle part is connected to each other by horizontal stull, are also provided with bridging.Described montant lower end and battered leg lower end be connected the mode that adopts gusset plate pin joint.Described battered leg upper end along the bridge and being connected of shoring, the mode of employing gusset plate pin joint.Described in two pier studs inner sides along the bridge, every side montant all arranges and is no less than 2.Described Bailey truss is no less than 6.
Compare existing full framing method and steel pipe pile Bailey truss method, the present invention, without taking lower side space, meets the location that has strict demand to current; Do not need interim basis, be suitable for any geologic structure section, be particularly suitable for, across river, cross a river, Muddy Bottoms location, can significantly reducing construction costs simultaneously yet.
Accompanying drawing explanation
Fig. 1 is the vertical structure schematic diagram of Eight characters bracing frame involved in the present invention.
Fig. 2 is the transversary schematic diagram of Fig. 1 Eight characters bracing frame.
Fig. 3 is the concrete structure figure of part in Fig. 1 or Fig. 2 Eight characters bracing frame.Wherein: a is montant; B is battered leg; C is for shoring.
In Fig. 1～Fig. 3: 1, montant; 2, battered leg; 3, shore; 4, middle part distribution beam; 4 ' end distribution beam; 5, Bailey truss; 6, longitudinally stull; 6 ' horizontal stull; 7, bridging; 8, pier stud; 9, cushion cap; 10, Cast-in-situ Beam; 11, template.Wherein: 1-1, flange; 1-2, gusset plate; 1-3, pin-and-hole; 2-1, gusset plate; 2-2, pin-and-hole; 2-3, gusset plate; 2-4, pin-and-hole; 2-5, bearing support; 3-1, gusset plate; 3-2, pin-and-hole.
The specific embodiment
As shown in Figure 1 and Figure 2, a bridge cast in place concrete form Eight characters bracing frame, comprises montant 1, battered leg 2, shores 3, distribution beam 4, Bailey truss 5 etc., wherein, montant 1 is comprised of steel pipe, flange 1-1 and gusset plate 1-2 that (Fig. 3 a), establishes pin-and-hole 1-3 on gusset plate 1-2; Battered leg 2 forms (Fig. 3 b) by steel pipe, gusset plate 2-1,2-3, pin-and-hole 2-2,2-4, bearing support 2-5; Shore 3 and form (Fig. 3 c) by steel pipe, gusset plate 3-1, pin-and-hole 3-2.Pin-and-hole 1-3 on montant 1 gusset plate 1-2 is connected by steel pin with the pin-and-hole 2-2 on battered leg 2 gusset plate 2-1; Pin-and-hole 2-4 on battered leg 2 gusset plate 2-3 is connected by steel pin with the pin-and-hole 3-2 shoring on 3 gusset plate 3-1.
As shown in Figure 3, montant 1 is seamless steel pipe, and blue 1-1 is managed at two ends, and gusset plate 1-2 is set in bottom, establishes pin-and-hole 1-3 on gusset plate.Battered leg 2 is seamless steel pipe, and gusset plate 2-1 is established in lower end, and gusset plate 2-3 and bearing support 2-5 are established in upper end, establish pin-and-hole 2-2,2-4 on gusset plate.Shore 3 for seamless steel pipe, gusset plate 3-1 is established at two ends, establishes pin-and-hole 3-2 on gusset plate.
With reference to figure 1, montant 1 is connected by longitudinal stull 6 with pier stud 8; Montant 1 is connected by longitudinal stull 6 with battered leg 2.Middle part distribution beam 4 is welded with the bearing support 2-5 on battered leg 2, makes 2 one-tenth Eight characters structures of battered leg.
With reference to figure 2, between montant 1 is horizontal, by horizontal stull 6 ', be connected with bridging 7.End distribution beam 4 ' is welded with the flange 1-1 on montant 1, and many Bailey truss 5 are vertically shelved in distribution beam.Stull is that channel-section steel assembly welding becomes " " shape structure, and is welded and fixed between montant, battered leg and built-in fitting; Bridging is angle steel, and is welded and fixed between montant, battered leg.Distribution beam is i iron group welding piece, and is welded and fixed between montant top flange, battered leg bearing support.
Fig. 1 Eight characters bracing frame construction method of installation, comprises the steps:
(1) montant is installed
With reference to figure 1～Fig. 3, by the flange 1-1 bottom montant, montant 1 and the built-in fitting of cushion cap 9 to be fixed, built-in fitting and flange pass through bolt anchoring; Adjust after the vertical degree of montant, at suitable bridge, to (longitudinally), lower node plate 1-2 position, middle part and the top of montant 1 are connected with the built-in fitting of pier stud 8 with longitudinal stull 6 respectively; At direction across bridge, adopt four montants in one line, middle part is connected to each other by horizontal stull 6 ', and bridging 7 is installed; Montant 1 top and the 4 ' welding of end distribution beam, so far montant installs;
(2) battered leg and shore installation
With reference to figure 1～Fig. 3, along bridge to, the gusset plate 1-2 by montant 1 bottom is connected with the gusset plate 2-1 of battered leg 2 ends, connects employing pin joint; Utilize wire rope to hold battered leg 2 upper ends, adjust battered leg angle; Gusset plate 2-3 by battered leg 2 tops is connected with the gusset plate 3-1 that shores 3, connects and adopts pin joint; Battered leg 2 middle parts are connected by longitudinal stull 6 with montant 1 middle part; Battered leg top bearing support 2-5 and 4 welding of middle part distribution beam, at direction across bridge, the same montant of battered leg quantity, also connects by stull 6 ' each other, and bridging 7 is installed; So far battered leg 2 and shore 3 and install;
(3) trussed construction is installed
With reference to figure 2, utilize crane lifting by a plurality of (in figure being 10) Bailey truss 5 along bridge to being arranged in end distribution beam 4 ' and middle part distribution beam 4, so far whole support frame structure installs.
(4) support frame structure is removed
After cast-in-place concrete construction, according to trussed construction, distribution beam 4,4 ', shore 3, the order of battered leg 2, montant 1 removes successively.
Claims (6)
1. a construction method for bridge cast in place concrete form Eight characters bracing frame, is characterized in that, comprises the steps:
(1) montant is installed
In two pier studs inner sides along the bridge, many montants are in one line along cross-bridges direction, each montant lower end and the anchoring of pier stud cushion cap, the bottom of each montant, middle part and top respectively with pier shaft anchoring; Montant upper end is connected by end distribution beam; In cross-bridges direction, each montant middle part is connected to each other by horizontal stull;
(2) battered leg and shore installation
Each montant lower end all connects a lower end of adjusting in advance the battered leg at angle of inclination, and between two battered leg upper ends along the bridge, by shoring connection, battered leg middle part is along the bridge connected by longitudinal stull with montant middle part; Each battered leg middle part of cross-bridges direction connects by horizontal stull, and each battered leg upper end of cross-bridges direction is connected by middle part distribution beam;
(3) trussed construction is installed
By crane order lifting for many previously prepared good Bailey truss, be arranged on along the bridge in end and middle part distribution beam, form Eight characters supporting & stablizing structure;
(4) dismounting of Eight characters bracing frame
After Cast-in-situ Beam concrete construction, according to trussed construction, distribution beam, shore, the order of battered leg, montant removes successively.
2. the construction method of bridge cast in place concrete form Eight characters bracing frame as claimed in claim 1, is characterized in that, described in cross-bridges direction, and each montant, each battered leg, except middle part is connected to each other by horizontal stull, are also provided with bridging.
3. the construction method of bridge cast in place concrete form Eight characters bracing frame as claimed in claim 1, is characterized in that, described montant lower end and battered leg lower end be connected the mode that adopts gusset plate pin joint.
4. the construction method of bridge cast in place concrete form Eight characters bracing frame as claimed in claim 1, is characterized in that, described battered leg upper end along the bridge and being connected of shoring, the mode of employing gusset plate pin joint.
5. the construction method of bridge cast in place concrete form Eight characters bracing frame as claimed in claim 1, is characterized in that, described in two pier studs inner sides along the bridge, every side montant all arranges and is no less than 2.
6. the construction method of bridge cast in place concrete form Eight characters bracing frame as claimed in claim 1, is characterized in that, described Bailey truss is no less than 6.
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| CN201310538941.6A CN103628408B (en) | 2013-11-01 | 2013-11-01 | The construction method of bridge cast in place concrete form Eight characters bracing frame |
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| CN201310538941.6A CN103628408B (en) | 2013-11-01 | 2013-11-01 | The construction method of bridge cast in place concrete form Eight characters bracing frame |
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| CN103628408B CN103628408B (en) | 2016-03-02 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104963295A (en) * | 2015-07-27 | 2015-10-07 | 中铁九局集团第二工程有限公司 | Support frame for non-ground internal-force balanced cast-in-place beam and construction method thereof |
| CN106087746A (en) * | 2016-06-14 | 2016-11-09 | 江苏燕宁建设工程有限公司 | A kind of cast-in-situ box girder falsework construction method and bridge |
| CN106939557A (en) * | 2017-05-11 | 2017-07-11 | 中铁第五勘察设计院集团有限公司 | A kind of pin-connected panel bracket casting platform of brace support |
| CN110565528A (en) * | 2019-08-08 | 2019-12-13 | 中铁五局集团有限公司 | Novel assembled cast in situ concrete support |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09184108A (en) * | 1996-01-08 | 1997-07-15 | Shimizu Corp | Erection method of concrete bridge and support means used for the erection method and transfer girder |
| JP2000345515A (en) * | 1999-06-07 | 2000-12-12 | Pc Bridge Co Ltd | High-strength light composite girder bridge and construction method therefor |
| CN1851233A (en) * | 2006-05-24 | 2006-10-25 | 杨秋利 | Tunnel lining trolley |
| CN101353912A (en) * | 2008-08-28 | 2009-01-28 | 温州建设集团公司 | Construction method of structure conversion layer concrete girder steel bracket formwork support |
| CN101481902A (en) * | 2009-01-21 | 2009-07-15 | 中铁三局集团有限公司 | V type pier inclined leg combined type support for continuous rigid frame bridge and layered cast-in-situ construction method |
| CN201648977U (en) * | 2010-04-28 | 2010-11-24 | 中铁三局集团有限公司 | Slant legged rigid frame bracket system of cast-in-place prestressed concrete continuous beam at bridge site |
| CN202543806U (en) * | 2012-03-30 | 2012-11-21 | 中铁大桥局集团第五工程有限公司 | Self-floating carrier frame bracket for bridge construction |
-
2013
- 2013-11-01 CN CN201310538941.6A patent/CN103628408B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09184108A (en) * | 1996-01-08 | 1997-07-15 | Shimizu Corp | Erection method of concrete bridge and support means used for the erection method and transfer girder |
| JP2000345515A (en) * | 1999-06-07 | 2000-12-12 | Pc Bridge Co Ltd | High-strength light composite girder bridge and construction method therefor |
| CN1851233A (en) * | 2006-05-24 | 2006-10-25 | 杨秋利 | Tunnel lining trolley |
| CN101353912A (en) * | 2008-08-28 | 2009-01-28 | 温州建设集团公司 | Construction method of structure conversion layer concrete girder steel bracket formwork support |
| CN101481902A (en) * | 2009-01-21 | 2009-07-15 | 中铁三局集团有限公司 | V type pier inclined leg combined type support for continuous rigid frame bridge and layered cast-in-situ construction method |
| CN201648977U (en) * | 2010-04-28 | 2010-11-24 | 中铁三局集团有限公司 | Slant legged rigid frame bracket system of cast-in-place prestressed concrete continuous beam at bridge site |
| CN202543806U (en) * | 2012-03-30 | 2012-11-21 | 中铁大桥局集团第五工程有限公司 | Self-floating carrier frame bracket for bridge construction |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104963295A (en) * | 2015-07-27 | 2015-10-07 | 中铁九局集团第二工程有限公司 | Support frame for non-ground internal-force balanced cast-in-place beam and construction method thereof |
| CN106087746A (en) * | 2016-06-14 | 2016-11-09 | 江苏燕宁建设工程有限公司 | A kind of cast-in-situ box girder falsework construction method and bridge |
| CN106939557A (en) * | 2017-05-11 | 2017-07-11 | 中铁第五勘察设计院集团有限公司 | A kind of pin-connected panel bracket casting platform of brace support |
| CN106939557B (en) * | 2017-05-11 | 2019-01-22 | 中铁第五勘察设计院集团有限公司 | A kind of pin-connected panel bracket casting platform of brace support |
| CN110565528A (en) * | 2019-08-08 | 2019-12-13 | 中铁五局集团有限公司 | Novel assembled cast in situ concrete support |
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| CN103628408B (en) | 2016-03-02 |
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