CN105755943A - Arch bridge arch ring block section and construction method thereof - Google Patents
Arch bridge arch ring block section and construction method thereof Download PDFInfo
- Publication number
- CN105755943A CN105755943A CN201610110367.8A CN201610110367A CN105755943A CN 105755943 A CN105755943 A CN 105755943A CN 201610110367 A CN201610110367 A CN 201610110367A CN 105755943 A CN105755943 A CN 105755943A
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- block section
- net
- arch
- cover plate
- steel support
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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
- E01D4/00—Arch-type 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
- 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
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses an arch bridge arch ring block section.The arch bridge arch ring block section comprises a structural steel support, a formwork, a reinforced concrete cover plate and a block section body which are sequentially arranged along the arch bridge arch bottom in the direction of the arch crown.The lower end of the structural steel support is installed on a bearing layer of the arch bridge.The formwork is installed at the upper portion of the structural steel support.The structural steel support penetrates through the formwork and then anchored into the reinforced concrete cover plate.The block section body is poured into the reinforced concrete cover plate.The arch ring block section has the advantages of being simple in structure, stable, reliable and the like.The invention correspondingly discloses a construction method of the arch ring block section.The method comprises the following steps that S01, the structural steel support is installed on the bearing layer; S02, the formwork is installed at the upper section of the structural steel support; S03, the reinforced concrete cover plate is poured on the formwork; S04, the block section body is poured on the reinforced concrete cover plate.The arch bridge arch ring block section construction method has the advantages that construction is easy and convenient.
Description
Technical field
The invention mainly relates to technical field of bridge engineering, refer in particular to a kind of Arch Bridge Ribs block section and construction method thereof.
Background technology
In reinforced concrete arch bridge is constructed, the usual layer and section of arch ring is built, and wherein block section is on curved surface of high curvature.When arch ring block section is built, lower end template will bear great concrete pressure, template and a support system thereof need to apply very firm, but often having comparatively intensive bar connecting between block section at present, these handling making again end head formwork and a support system thereof and surface dabbing become extremely to require great effort and even cannot be carried out.And before arch ring closes up, it is discrete for autonomous block section by post-cast strip.Block section produces great sliding force because of the curvature of deadweight and template along template, only stablizes block section by block intersegmental connection reinforcing bar and there is great potential safety hazard.
Summary of the invention
The technical problem to be solved in the present invention is that the present invention provides a kind of simple in construction, reliable and stable Arch Bridge Ribs block section, and provides the arch ring block section constructing method of a kind of easy construction accordingly for the technical problem that prior art exists.
For solving above-mentioned technical problem, the technical scheme that the present invention proposes is:
A kind of Arch Bridge Ribs block section, including the type steel support, template, reinforced concrete cover plate and the block section body that set gradually to vault direction along the arch bridge arch end, the lower end of described type steel support is arranged on the supporting course of arch bridge, described model sheetinstallat is on the top of described type steel support, described type steel support anchors in described reinforced concrete cover plate after described template, and described piece of section body is cast on described reinforced concrete cover plate.
Further improvement as technique scheme:
The lower end of described type steel support is arranged on supporting course by a resiliency supported backing plate.
Described template includes the shaped steel distribution beam, bottom layer of the reinforcing steel net, middle level steel plate stretching net and the top layer closing in net that encircle the end and set gradually to vault direction along arch ring, the lower end of described shaped steel distribution beam and type steel support are fastenedly connected, upper end is connected with the fastening of bottom layer of the reinforcing steel net, and described middle level steel plate stretching net is connected with bottom layer of the reinforcing steel net and top layer closing in net colligation respectively.
Described type steel support is perpendicular to the end face of described supporting course.
The invention also discloses the construction method of a kind of arch ring block section as above, comprise the following steps:
S01, beginning, mount type bracing members on the supporting course of Arch Bridge Ribs；
S02, at the epimere installation form of type steel support；
S03, in template pouring reinforcement concrete cover plate, wherein the upper end of type steel support anchors in reinforced concrete cover plate；
S04, on reinforced concrete cover plate pour section body, construction completes.
Further improvement as technique scheme:
Described template includes the shaped steel distribution beam, bottom layer of the reinforcing steel net, middle level steel plate stretching net and the top layer closing in net that encircle the end and set gradually to vault direction along arch ring, the lower end of described shaped steel distribution beam is welded on type steel support, upper end is welded with bottom layer of the reinforcing steel net, and described middle level steel plate stretching net is connected with bottom layer of the reinforcing steel net and top layer closing in net colligation respectively.
Compared with prior art, it is an advantage of the current invention that:
1, the Arch Bridge Ribs block section of the present invention, pass through type steel support, the reasonable Arrangement of template and reinforced concrete cover plate, load when reinforced concrete cover plate is built is born by template and type steel support when wherein reinforced concrete cover plate applies, after reinforced concrete cover plate molding, by load when building with type steel support bear block section body, and template and reinforced concrete cover plate will form entirety with block section body, the each operating loading being transmitted through by reinforced concrete cover plate by type steel support is transferred to the supporting course (arch base plinth or next arch ring block section) of arch ring, therefore the Arch Bridge Ribs block section of the present invention has the concrete supported when arch ring block section is built and resists the effects such as arch ring block section molding tailing edge template downslide, and simple in construction, it is easily achieved.
2, the construction method of the Arch Bridge Ribs block section of the present invention, not only has the advantage as above described in arch ring block section, and eliminates the work of form removal and dabbing under intensive reinforcing bar environment, effectively eliminate each piece of section downslide hidden danger, there is construction simple, with low cost, advantage safely and efficiently.
Accompanying drawing explanation
Fig. 1 is the main TV structure schematic diagram of the arch ring block section of the present invention.
Fig. 2 is the side-looking structural representation of the arch ring block section of the present invention.
Fig. 3 is the arch ring block section of the present invention main TV structure schematic diagram after installing resiliency supported backing plate.
Fig. 4 is the arch ring block section of present invention side-looking structural representation after installing resiliency supported backing plate.
Fig. 5 is the arch ring block section of the present invention main TV structure schematic diagram after mount type bracing members.
Fig. 6 is the arch ring block section of present invention side-looking structural representation after mount type bracing members.
Fig. 7 is the arch ring block section of the present invention main TV structure schematic diagram after installation form.
Fig. 8 is the arch ring block section of the present invention main TV structure schematic diagram after installing reinforced concrete cover plate.
Fig. 9 is the arch ring block section of present invention side-looking structural representation after installing reinforced concrete cover plate.
Number in the figure represents: 1, arch ring block section；11, resiliency supported backing plate；12, type steel support；13, template；131, shaped steel distribution beam；132, bottom layer of the reinforcing steel net；133, middle level steel plate stretching net；134, top layer closing in net；14, reinforced concrete cover plate；15, block section body.
Detailed description of the invention
Below in conjunction with Figure of description and specific embodiment, the invention will be further described.
As shown in Figures 1 to 9, the Arch Bridge Ribs block section of the present embodiment, including the type steel support 12, template 13, reinforced concrete cover plate 14 and the block section body 15 that set gradually to vault direction along the arch bridge arch end, the lower end of type steel support 12 is arranged on the basis at the supporting course 2(Arch Bridge Ribs arch end of arch bridge or the arch ring block section 1 of downside) on, template 13 is arranged on the top of type steel support 12, type steel support 12 anchors in reinforced concrete cover plate 14 after template 13, and block section body 15 is cast on reinforced concrete cover plate 14.nullThe Arch Bridge Ribs block section of the present invention，By type steel support 12、The reasonable Arrangement of template 13 and reinforced concrete cover plate 14，Load when reinforced concrete cover plate 14 is built is born by template 13 and type steel support 12 when wherein reinforced concrete cover plate 14 applies，After reinforced concrete cover plate 14 molding，By load when building with type steel support 12 bear block section body 15，And template 13 and reinforced concrete cover plate 14 will form entirety with block section body 15，The each operating loading being transmitted through by reinforced concrete cover plate 14 by type steel support 12 is transferred to the supporting course 2(arch base plinth of arch ring or the arch ring block section 1 that bottom is adjacent)，Therefore the Arch Bridge Ribs block section of the present invention has the concrete supported when arch ring block section 1 is built and resists the effects such as arch ring block section 1 molding tailing edge template 13 downslide，And simple in construction、It is easily achieved.
In the present embodiment, the lower end of type steel support 12 is arranged on supporting course 2 by a resiliency supported backing plate 11, and the elasticity of resiliency supported backing plate 11 is because temperature, the deformation produced of creeping provide surplus between each piece of section before arch ring closes up.Additionally type steel support 12 is perpendicular to the end face of supporting course 2, makes type steel support 12 act perpendicularly to supporting course 2 when stress and ensure its reliability.
In the present embodiment, template 13 includes the shaped steel distribution beam 131, bottom layer of the reinforcing steel net 132, middle level steel plate stretching net 133 and the top layer closing in net 134 that encircle the end and set gradually to vault direction along arch ring, the lower end of shaped steel distribution beam 131 and type steel support 12 are fastenedly connected, upper end is connected with bottom layer of the reinforcing steel net 132 fastening, and middle level steel plate stretching net 133 is connected with bottom layer of the reinforcing steel net 132 and top layer closing in net 134 colligation respectively.
The present invention discloses the construction method of a kind of arch ring block section described above accordingly, comprises the following steps:
S01, beginning, the supporting course 2(arch ring at Arch Bridge Ribs encircles the arch ring block section 1 of base plinth or lower section) upper resiliency supported backing plate 11, mount type bracing members 12 fixing on resiliency supported backing plate 11, wherein type steel support 12 is perpendicular to supporting course 2；
S02, at the epimere installation form 13 of type steel support 12, template 13 is combined permanent template, including composite shuttering shaped steel distribution beam 131 from bottom to top, composite shuttering bottom layer of the reinforcing steel net 132, the close order steel plate stretching net in composite shuttering middle level, composite shuttering top layer fast-easy closing-up net, wherein type steel support 12 firmly welds with composite shuttering shaped steel distribution beam 131；Composite shuttering shaped steel distribution beam 131 is firmly welded with composite shuttering bottom layer of the reinforcing steel net 132；Composite shuttering bottom layer of the reinforcing steel net 132 and composite shuttering middle level close order steel plate stretching net lashing；The close order steel plate stretching net in composite shuttering middle level and composite shuttering top layer fast-easy closing-up net lashing；
S03, to vault direction install reinforcing bar, installation length is to exceed reinforced concrete cover plate 14 top, guaranteeing that joint location meets code requirement, conveniently carries out reinforced concrete cover plate 14 and build operation and be advisable, wherein the upper end of type steel support 12 anchors in concrete cover, and connection attribute is just knot；
S04, reinforced concrete cover plate 14 have been built tailing edge vault direction and have been continued to install reinforcing bar, and when reinforced concrete cover plate 14 reaches design strength and completes a block section reinforcing bar binding, pour section body 15, so far an arch ring block section 1 has been constructed.
The construction method of this arch ring block section can solve the problem that because the curvature of block deadweight and template 13 produces very big sliding force along template 13 when reinforced concrete arch bridge arch ring segmentation is built, the stable problem of each piece of section after end head formwork 13 intensity thus brought and block section molding.The method construct that " the close order steel plate stretching net+fast-easy closing-up net of shaped steel distribution beam 131+ " form in advance in order to support first water cover plate exempt from tear composite shuttering system open, utilize this weak support to perform small size reinforced concrete cover plate 14 and substitute conventional template as permanent formwork, again using this concrete cover as the template with very big bearing capacity, then carrying out follow-up concreting, the reinforced concrete cover plate 14 built in advance is simultaneously as a works part.The method eliminates form removal and dabbing work under intensive reinforcing bar environment, effectively eliminate simultaneously each arch ring block section 1 downslide hidden danger, construct simple, with low cost and safe and efficient.
Below being only the preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-described embodiment, and all technical schemes belonged under thinking of the present invention belong to protection scope of the present invention.It should be pointed out that, for those skilled in the art, some improvements and modifications without departing from the principles of the present invention, should be regarded as protection scope of the present invention.
Claims (6)
1. an Arch Bridge Ribs block section, it is characterized in that, including the type steel support (12) set gradually to vault direction along the arch bridge arch end, template (13), reinforced concrete cover plate (14) and block section body (15), the lower end of described type steel support (12) is arranged on the supporting course (2) of arch bridge, described template (13) is arranged on the top of described type steel support (12), described type steel support (12) anchors in described reinforced concrete cover plate (14) after described template (13), described piece of section body (15) is cast on described reinforced concrete cover plate (14).
2. Arch Bridge Ribs block section according to claim 1, it is characterised in that the lower end of described type steel support (12) is arranged on supporting course (2) by a resiliency supported backing plate (11).
3. Arch Bridge Ribs block section according to claim 1, it is characterized in that, described template (13) includes the shaped steel distribution beam (131), bottom layer of the reinforcing steel net (132), middle level steel plate stretching net (133) and top layer closing in net (134) that encircle the end and set gradually to vault direction along arch ring (1), the lower end of described shaped steel distribution beam (131) and type steel support (12) are fastenedly connected, upper end is connected with bottom layer of the reinforcing steel net (132) fastening, and described middle level steel plate stretching net (133) is connected with bottom layer of the reinforcing steel net (132) and top layer closing in net (134) colligation respectively.
4. the Arch Bridge Ribs block section according to claim 1 or 2 or 3, it is characterised in that described type steel support (12) is perpendicular to the end face of described supporting course (2).
5. the construction method of the arch ring block section in Claims 1-4 as described in any one, it is characterised in that comprise the following steps:
S01, beginning, the upper mount type bracing members (12) of the supporting course (2) in Arch Bridge Ribs (1)；
S02, at the epimere installation form (13) of type steel support (12)；
S03, at the upper pouring reinforcement concrete cover plate (14) of template (33), wherein the upper end of type steel support (12) anchors in reinforced concrete cover plate (14)；
S04, at upper pour section body (15) of reinforced concrete cover plate (14), construction completes.
6. the construction method of arch ring block section according to claim 5, it is characterized in that, described template (13) includes the shaped steel distribution beam (131), bottom layer of the reinforcing steel net (132), middle level steel plate stretching net (133) and top layer closing in net (134) that encircle the end and set gradually to vault direction along arch ring (1), the lower end of described shaped steel distribution beam (131) is welded on type steel support (12), upper end is welded with bottom layer of the reinforcing steel net (132), and described middle level steel plate stretching net (133) is connected with bottom layer of the reinforcing steel net (132) and top layer closing in net (134) colligation respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610110367.8A CN105755943B (en) | 2016-02-29 | 2016-02-29 | A kind of Arch Bridge Ribs block section and its construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610110367.8A CN105755943B (en) | 2016-02-29 | 2016-02-29 | A kind of Arch Bridge Ribs block section and its construction method |
Publications (2)
| Publication Number | Publication Date |
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| CN105755943A true CN105755943A (en) | 2016-07-13 |
| CN105755943B CN105755943B (en) | 2017-08-25 |
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| CN201610110367.8A Expired - Fee Related CN105755943B (en) | 2016-02-29 | 2016-02-29 | A kind of Arch Bridge Ribs block section and its construction method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107165054A (en) * | 2017-07-04 | 2017-09-15 | 中铁十二局集团有限公司 | Both sides unbalanced load dynamic adjusting method and system in continuous beam cantilever casting |
| CN110593075A (en) * | 2019-09-09 | 2019-12-20 | 苏州园林设计院有限公司 | Arch bridge stone arch coupon fixing structure and construction method thereof |
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| CN101984189A (en) * | 2010-11-10 | 2011-03-09 | 中交第二航务工程局有限公司 | Construction method of large steel concrete composite multi-terrace slope skewback |
| CN201981483U (en) * | 2011-03-03 | 2011-09-21 | 中铁一局集团有限公司 | Reinforced concrete profiled cap beam for arch rib cast-in-place bracket |
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2016
- 2016-02-29 CN CN201610110367.8A patent/CN105755943B/en not_active Expired - Fee Related
Patent Citations (4)
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| CN101984189A (en) * | 2010-11-10 | 2011-03-09 | 中交第二航务工程局有限公司 | Construction method of large steel concrete composite multi-terrace slope skewback |
| CN201981483U (en) * | 2011-03-03 | 2011-09-21 | 中铁一局集团有限公司 | Reinforced concrete profiled cap beam for arch rib cast-in-place bracket |
| WO2013063023A1 (en) * | 2011-10-24 | 2013-05-02 | Caterpillar Inc. | Dual fuel injector with hydraulic lock seal and liquid leak purge strategy |
| CN203559331U (en) * | 2013-11-06 | 2014-04-23 | 中铁第一勘察设计院集团有限公司 | Reactive powder concrete deck type arch bridge of railway |
Non-Patent Citations (1)
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| 张河锦等: "钢筋混凝土箱形拱主拱圈施工方法介绍及分析", 《公路交通技术》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107165054A (en) * | 2017-07-04 | 2017-09-15 | 中铁十二局集团有限公司 | Both sides unbalanced load dynamic adjusting method and system in continuous beam cantilever casting |
| CN107165054B (en) * | 2017-07-04 | 2018-11-13 | 中铁十二局集团有限公司 | Both sides unbalanced load dynamic adjusting method in continuous beam cantilever casting and system |
| CN110593075A (en) * | 2019-09-09 | 2019-12-20 | 苏州园林设计院有限公司 | Arch bridge stone arch coupon fixing structure and construction method thereof |
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| Publication number | Publication date |
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| CN105755943B (en) | 2017-08-25 |
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