CN104594204B - Urban light rail viaduct mountain type U beam Construction Supporting System and construction method - Google Patents
Urban light rail viaduct mountain type U beam Construction Supporting System and construction method Download PDFInfo
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- CN104594204B CN104594204B CN201510045959.1A CN201510045959A CN104594204B CN 104594204 B CN104594204 B CN 104594204B CN 201510045959 A CN201510045959 A CN 201510045959A CN 104594204 B CN104594204 B CN 104594204B
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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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Abstract
The invention discloses a kind of urban light rail viaduct mountain type U beam Construction Supporting System and construction method, solve existing all round victory support of setting up and carry out supporting the problem that floor space is large and circulation material holding time is long existed.Four angles being included in cushion cap (12) are provided with steel column, be provided with beam sandbox (16) on the top of steel column (14), fall between beam sandbox to being provided with cross binding beam (17) at two of direction across bridge, vertical bridge to two cross binding beams (17) between be furnished with longitudinal distribution beam (18), bracing frame (19) and bent cap soffit formwork that cross section is right-angled triangle is respectively arranged with at the two ends of longitudinal distribution beam (18), the both sides top end face of bent cap (20) is provided with the outer mould holder (21) of mountain type U beam, mountain type U beam bottom mother plate outside-supporting (22) is provided with between the bottom surface and longitudinal distribution beam (18) of outermost end of the outer mould holder (21) of mountain type U beam.Improve construction efficiency, add assembly precision.
Description
Technical field
The present invention relates to the support system of a kind of urban light rail viaduct mountain type U beam construction, the support system of particularly a kind of urban light rail viaduct mountain type U beam construction and perform method.
Background technology
Urban light rail is a kind of quick, efficient, economic trip mode.Urban light rail generally has underground, ground and overhead three kinds of set-up modes.In the process of construction urban light rail, according to execution conditions and construction costs often by track laying on viaduct, to reach reduction construction cost, reduce construction land tenure and shorten the object of construction period.When constructing viaduct, generally perform according to the order of pile foundation, cushion cap, pier stud, bent cap, when bridge cross over the main cities main line of communication or run into circuit irregular time, adopt the mode of cast-in-situ continuous beam to set up.Cast-in-situ continuous beam mainly contains case beam, tee girder and U-shaped beam etc.In order to control noise, reduce construction costs and guarantee traffic safety, in urban light rail viaduct, starting to have employed mountain type U beam.In the cast in situs process of mountain type U beam, generally adopt the mode setting up all round victory scaffold on ground, its formwork for placing is supported.This support system exists that floor space is large, circulation material holding time long, the problem of long construction period, particularly under the condition that construction place, ground is limited, cannot set up all round victory scaffold and support.In addition, the end bay of mountain type U beam is arranged on bent cap, bent cap is cast-in-place on pier stud forming, the bent cap section configuration adopted due to different Work sectors is different, also different to the requirement of the support system that bent cap is built, cause the support system of different section capping beam template also different, greatly reduce the recycling rate of waterused of support system material therefor, equally, the falsework of the bent cap of prior art also supports by setting up all round victory support, there is the problems such as floor space is large, circulation material holding time is long, the construction period is long equally.At the scene in construction, also there is the construction method adopting steel pipe column to support bent cap bed die.In the erection process of steel pipe column support system, once adopt cushion cap, steel pipe column from top to bottom, the beam sandbox that falls, bent cap bed die construct.The beam sandbox installation process that falls is generally first bucket casing at the bottom of sandbox is lifted into the top of steel pipe column, then fine sand lifting is injected in bucket casing at the bottom of sandbox, finally plunger piston is lifted on the fine sand in bucket casing at the bottom of sandbox, with plunger piston supporting cover beam bottom mother plate.Build bent cap concrete, after bent cap concrete reaches design strength, bleed off fine sand in bucket at the bottom of sandbox, plunger piston is declined, thus reach the object of the bent cap bed die demoulding.In the hoisting process falling beam sandbox, there is lifting often, carry out the problem that sandbox combination aligning accuracy is low and handling safety coefficient is low in high-altitude.
Summary of the invention
The invention provides a kind of urban light rail viaduct mountain type U beam Construction Supporting System and construction method thereof, solve existing all round victory support of setting up and carry out supporting the problem that floor space is large, circulation material holding time is long and the construction period is long existed.
The present invention solves above technical problem by the following technical programs:
A kind of urban light rail viaduct mountain type U beam Construction Supporting System, comprise cushion cap, the central authorities of cushion cap are provided with pier stud, four angles of cushion cap are provided with steel column concrete foundation, steel column concrete foundation is provided with steel column, be provided with beam sandbox on the top of steel column, fall between beam sandbox to being provided with cross binding beam at two of direction across bridge, vertical bridge to two cross binding beams between be furnished with longitudinal distribution beam, the bracing frame that cross section is right-angled triangle is respectively arranged with at the two ends of longitudinal distribution beam, the bracing frame of right-angled triangle is provided with bent cap soffit formwork, bent cap built by bent cap bed die, the stage casing of bent cap is arranged on the top end face of pier stud, the both sides top end face of bent cap is provided with the outer mould holder of mountain type U beam, mountain type U beam bottom mother plate outside-supporting is provided with between the bottom surface and longitudinal distribution beam of outermost end of the outer mould holder of mountain type U beam, cross pull bar is provided with between mountain type U beam midfield template and cheek board, be provided with pull bar between median ventral plate two side template, be provided with pull bar between limit web two side template.
The side wall lower ends of the end bucket casing of the beam sandbox that falls is provided with sidewall sand outlet, sand outlet blind bolt is provided with in sidewall sand outlet, screw is symmetrically arranged with in the sidewall upper of the end bucket casing of the beam sandbox that falls, screw is welded with nut, bolt is bolted with in nut, fine sand is filled with in end bucket casing, the end face of fine sand is provided with plunger piston, the sidewall symmetry of plunger piston is provided with strip hole, the afterbody of bolt is arranged in strip hole, and the top board of plunger piston is provided with hole for hoist.
A construction method for urban light rail viaduct mountain type U beam Construction Supporting System, comprises the following steps:
The first step, perform cushion cap, at the built-in fitting of the reinforced concrete foundation of the pre-buried steel column in corner place of cushion cap end face, central authorities perform pier stud, perform the concrete foundation of steel column, are lifted respectively by four steel columns and are installed on corresponding reinforced concrete foundation;
Second step, assemble beam sandbox on ground, to be spirally connected sand hole blind bolt in the sidewall sand outlet that the side wall lower ends of end bucket casing falling beam sandbox is arranged, screw is symmetrical arranged in the sidewall upper of the end bucket casing of the beam sandbox that falls, welded nut on screw, be spirally connected bolt in nut, fine sand is filled in end bucket casing, the end face of fine sand arranges plunger piston, at the sidewall symmetry of plunger piston, strip hole is set, the afterbody cross-under of bolt is in strip hole, by the hole for hoist that the top board of plunger piston is arranged, the beam sandbox that falls assembled is lifted into the top of steel column, a beam sandbox that falls assembled respectively is placed on the top of each steel column,
3rd step, fall between beam sandbox to setting up cross binding beam at two of direction across bridge, many longitudinal distribution beam parallel to each other are arranged between two cross binding beams, arranging one group of cross section respectively at the two ends of these longitudinal distribution beam is the bracing frame of right-angled triangle, the bracing frame of two groups of right-angled triangles to be mated formation respectively bent cap soffit formwork, and set up bent cap side template, build bent cap concrete;
4th step, after bent cap concrete reaches design strength, longitudinal distribution beam of outermost end arranges mountain type U beam bottom mother plate outside-supporting, mountain type U beam bottom mother plate outside-supporting sets up the outer mould holder of mountain type U beam, and lay mountain type U beam bottom board and external mold, mountain type U beam midfield template and limit web templates are installed after base plate and web reinforcement colligation complete, median ventral plate template-setup is to drawing, and limit web templates is arranged drawing, and arranges cross pull bar between mountain type U beam midfield template and cheek board;
5th step, build mountain type U beam concrete, after mountain type U beam concrete reaches design strength, connecting bolt is laid down from screw, discharge along with fine sand makes plunger piston drive the bracing frame of right-angled triangle to decline, realize the demoulding of bent cap lower bolster, remove cross binding beam, longitudinal distribution beam, steel column and bracing frame, be transported to next construction section and use.
The present invention decreases and leads to the road that accounts for of existing circuit the time of changing in the work progress of urban light rail viaduct.The material reducing mountain type U beam support system drops into.The combination of the triangular support bracket of steel column, fall beam sandbox and capping beam template can simplify working procedure, and can be suitable for building of different section pattern bent cap.Support system combination convenient disassembly, recycling rate of waterused is high.The support of type U beam limit, mountain mould is arranged in longitudinal distribution beam, simplifies support system, and minimizing ground is set up and taken, and shortens the construction period.Be particularly suitable for using in urban light rail viaduct.The beam sandbox that falls achieves in the assembling of ground overall time, is disposablely lifted into steel column top, improves construction efficiency, add assembly precision, ensure that construction safety.
Accompanying drawing explanation
Fig. 1 is the structural representation of invention;
Fig. 2 be of the present invention fall the structural representation of beam sandbox 16.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in detail:
A kind of urban light rail viaduct mountain type U beam Construction Supporting System, comprise cushion cap 12, the central authorities of cushion cap 12 are provided with pier stud 11, four angles of cushion cap 12 are provided with steel column concrete foundation 13, steel column concrete foundation 13 is provided with steel column 14, be provided with beam sandbox 16 on the top of steel column 14, fall between beam sandbox to being provided with cross binding beam 17 at two of direction across bridge, vertical bridge to two cross binding beams 17 between be furnished with longitudinal distribution beam 18, the bracing frame 19 that cross section is right-angled triangle is respectively arranged with at the two ends of longitudinal distribution beam 18, the bracing frame 19 of right-angled triangle is provided with bent cap soffit formwork, bent cap bed die is built bent cap 20, the stage casing of bent cap 20 is arranged on the top end face of pier stud 11, the both sides top end face of bent cap 20 is provided with the outer mould holder 21 of mountain type U beam, mountain type U beam bottom mother plate outside-supporting 22 is provided with between the bottom surface and longitudinal distribution beam 18 of outermost end of the outer mould holder 21 of mountain type U beam, cross pull bar 23 is provided with between mountain type U beam midfield template and cheek board, be provided with between median ventral plate two side template pull bar 24, be provided with pull bar 25 between limit web two side template.
The side wall lower ends of the end bucket casing 1 of the beam sandbox 16 that falls is provided with sidewall sand outlet 2, sand outlet blind bolt 3 is provided with in sidewall sand outlet 2, screw 5 is symmetrically arranged with in the sidewall upper of the end bucket casing 1 of the beam sandbox 16 that falls, screw 5 is welded with nut 7, bolt 6 is bolted with in nut 7, fine sand 4 is filled with in end bucket casing 1, the end face of fine sand 4 is provided with plunger piston 8, the sidewall symmetry of plunger piston 8 is provided with strip hole 9, the afterbody of bolt 6 is arranged in strip hole 9, and the top board of plunger piston 8 is provided with hole for hoist 10.
A construction method for urban light rail viaduct mountain type U beam Construction Supporting System, comprises the following steps:
The first step, perform cushion cap 12, at the built-in fitting of the reinforced concrete foundation 13 of the pre-buried steel column 14 in the corner place of cushion cap 12 end face, central authorities perform pier stud 11, perform the concrete foundation 13 of steel column 14, are lifted respectively by four steel columns 14 and are installed on corresponding reinforced concrete foundation 13;
Second step, assemble beam sandbox on ground, to be spirally connected sand hole blind bolt 3 in the sidewall sand outlet that the side wall lower ends of end bucket casing 1 falling beam sandbox 16 is arranged, screw 5 is symmetrical arranged in the sidewall upper of the end bucket casing 1 of the beam sandbox 16 that falls, welded nut 7 on screw 5, be spirally connected bolt 6 in nut 7, fine sand 4 is filled in end bucket casing 1, the end face of fine sand 4 arranges plunger piston 8, at the sidewall symmetry of plunger piston 8, strip hole 9 is set, the afterbody cross-under of bolt 6 is in strip hole 9, the hole for hoist 10 that top board by plunger piston 8 is arranged, the beam sandbox that falls assembled is lifted into the top of steel column 14, a beam sandbox that falls assembled respectively is placed on the top of each steel column,
3rd step, fall between beam sandbox to setting up cross binding beam 17 at two of direction across bridge, many longitudinal distribution beam parallel to each other are arranged between two cross binding beams 17, the bracing frame 19 that one group of cross section is right-angled triangle is set respectively at the two ends of these longitudinal distribution beam, the bracing frame of two groups of right-angled triangles to be mated formation respectively bent cap soffit formwork, and set up bent cap side template, build bent cap concrete;
4th step, after bent cap concrete reaches design strength, longitudinal distribution beam 18 of outermost end arranges mountain type U beam bottom mother plate outside-supporting 22, mountain type U beam bottom mother plate outside-supporting 22 sets up the outer mould holder 21 of mountain type U beam, and lay mountain type U beam bottom board and external mold, mountain type U beam midfield template and limit web templates are installed after base plate and web reinforcement colligation complete, median ventral plate template-setup is to drawing 24, limit web templates is arranged drawing 25, and arranges cross pull bar 23 between mountain type U beam midfield template and cheek board;
5th step, build mountain type U beam concrete, after mountain type U beam concrete reaches design strength, connecting bolt 6 is laid down from screw, discharge along with fine sand 4 makes plunger piston 8 drive the bracing frame 19 of right-angled triangle to decline, realize the demoulding of bent cap lower bolster, remove cross binding beam 17, longitudinal distribution beam 18, steel column 14 and bracing frame 19, be transported to next construction section and use.
Claims (3)
1. a urban light rail viaduct mountain type U beam Construction Supporting System, comprise cushion cap (12), the central authorities of cushion cap (12) are provided with pier stud (11), it is characterized in that, four angles of cushion cap (12) are provided with steel column concrete foundation (13), steel column concrete foundation (13) is provided with steel column (14), be provided with beam sandbox (16) on the top of steel column (14), fall between beam sandbox to being provided with cross binding beam (17) at two of direction across bridge, vertical bridge to two cross binding beams (17) between be furnished with longitudinal distribution beam (18), the bracing frame (19) that cross section is right-angled triangle is respectively arranged with at the two ends of longitudinal distribution beam (18), the bracing frame (19) of right-angled triangle is provided with bent cap soffit formwork, bent cap bed die is built bent cap (20), the stage casing of bent cap (20) is arranged on the top end face of pier stud (11), the both sides top end face of bent cap (20) is provided with the outer mould holder (21) of mountain type U beam, mountain type U beam bottom mother plate outside-supporting (22) is provided with between the bottom surface and longitudinal distribution beam (18) of outermost end of the outer mould holder (21) of mountain type U beam, cross pull bar (23) is provided with between mountain type U beam midfield template and cheek board, be provided with between median ventral plate two side template pull bar (24), another is provided with to pull bar (25) between limit web two side template.
2. urban light rail viaduct mountain according to claim 1 type U beam Construction Supporting System, it is characterized in that, the side wall lower ends at end bucket casing (1) of the beam sandbox (16) that falls is provided with sidewall sand outlet (2), sand outlet blind bolt (3) is provided with in sidewall sand outlet (2), screw (5) is symmetrically arranged with in the sidewall upper at end bucket casing (1) of the beam sandbox (16) that falls, screw (5) is welded with nut (7), bolt (6) is bolted with in nut (7), fine sand (4) is filled with in end bucket casing (1), the end face of fine sand (4) is provided with plunger piston (8), the sidewall symmetry of plunger piston (8) is provided with strip hole (9), the afterbody of bolt (6) is arranged in strip hole (9), the top board of plunger piston (8) is provided with hole for hoist (10).
3. a construction method for urban light rail viaduct mountain type U beam Construction Supporting System, comprises the following steps:
The first step, perform cushion cap (12), at the built-in fitting of the reinforced concrete foundation (13) at the pre-buried steel column in the corner place (14) of cushion cap (12) end face, pier stud (11) is performed in the central authorities of cushion cap (12), perform the concrete foundation (13) of steel column (14) at the corner place of cushion cap (12) end face, four steel columns (14) are lifted respectively and is installed on corresponding reinforced concrete foundation (13);
Second step, assemble beam sandbox on ground, to be spirally connected sand hole blind bolt (3) in the sidewall sand outlet that the side wall lower ends at end bucket casing (1) falling beam sandbox (16) is arranged, screw (5) is symmetrical arranged in the sidewall upper at end bucket casing (1) of the beam sandbox (16) that falls, at the upper welded nut (7) of screw (5), be spirally connected bolt (6) in nut (7), fine sand (4) is filled at end bucket casing (1), the end face of fine sand (4) arranges plunger piston (8), at the sidewall symmetry of plunger piston (8), strip hole (9) is set, the afterbody cross-under of bolt (6) is in strip hole (9), the hole for hoist (10) that top board by plunger piston (8) is arranged, the beam sandbox that falls assembled is lifted into the top of steel column (14), a beam sandbox that falls assembled respectively is placed on the top of each steel column,
3rd step, fall between beam sandbox to setting up cross binding beam (17) at two of direction across bridge, many longitudinal distribution beam parallel to each other are arranged between two cross binding beams (17), the bracing frame (19) that one group of cross section is right-angled triangle is set respectively at the two ends of these longitudinal distribution beam, the bracing frame of two groups of right-angled triangles to be mated formation respectively bent cap soffit formwork, and set up bent cap side template, build bent cap concrete;
4th step, after bent cap concrete reaches design strength, longitudinal distribution beam (18) of outermost end arranges mountain type U beam bottom mother plate outside-supporting (22), the outer mould holder (21) of upper erection mountain type U beam on mountain type U beam bottom mother plate outside-supporting (22), and lay mountain type U beam bottom board and external mold, mountain type U beam midfield template and limit web templates are installed after base plate and web reinforcement colligation complete, median ventral plate template-setup is to pull bar (24), limit web templates arranges another to pull bar (25), and cross pull bar (23) is set between mountain type U beam midfield template and cheek board,
5th step, build mountain type U beam concrete, after mountain type U beam concrete reaches design strength, connecting bolt (6) is laid down from screw, discharge along with fine sand (4) makes plunger piston (8) drive the bracing frame (19) of right-angled triangle to decline, realize the demoulding of bent cap lower bolster, remove cross binding beam (17), longitudinal distribution beam (18), steel column (14) and bracing frame (19), be transported to next construction section and use.
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| CN110820561A (en) * | 2019-09-17 | 2020-02-21 | 浙江大学城市学院 | Large cantilever prestress bent cap support device and construction method |
| CN113846564A (en) * | 2021-09-24 | 2021-12-28 | 成都城投建筑工程有限公司 | Cover beam supporting structure and disassembling and assembling method |
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