CN103184723A - Method for reinforcing arch bridge with EPS Expandable Polystyrene light concrete - Google Patents
Method for reinforcing arch bridge with EPS Expandable Polystyrene light concrete Download PDFInfo
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- CN103184723A CN103184723A CN2012101400163A CN201210140016A CN103184723A CN 103184723 A CN103184723 A CN 103184723A CN 2012101400163 A CN2012101400163 A CN 2012101400163A CN 201210140016 A CN201210140016 A CN 201210140016A CN 103184723 A CN103184723 A CN 103184723A
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Abstract
The invention relates to a method for reinforcing an arch bridge with EPS Expandable Polystyrene light concrete. The method comprises the following steps: a, chipping away pavement on the old deck of the arch bridge to be reinforced and filling materials on original arches; b, preforming scabbling treatment on naked back arch concrete; c, preparing the EPS light concrete and performing casting, vibrating and rolling compaction; and d, pouring a new deck reinforced concrete pavement layer. Through the adoption of the method for reinforcing the arch bridge, the following benefits can be obtained: 1, the dead weight of the upper structure of the arch bridge can be reduced obviously, and the EPS light concrete has higher strength and thus can enhance the integrity of the construction on the arches and improve the load diffusion effect of the deck; 2, arch axis coefficients are regulated and optimized, so as to effectively improve the load-carrying capacity of a double curvature arch bridge; and 3, the EPS light concrete is low in manufacturing cost and can be made from recycled waste polystyrene material, thereby having favorable economic and environmental benefits.
Description
Technical field
The present invention relates to Technology Bridge Strengthening, be specifically related to the method that a kind of EPS light weight concrete construction is reinforced arch bridge.
Background technology
The EPS concrete is a kind of cement class material that is mixed stirring, coagulation forming by materials such as cement, river sand, EPS particle, SILICA FUME, water reducing agents according to certain ratio.The EPS concrete light is high-strength, and unit weight is about 12kN/m3, and compressive strength is about 1.7MPa, has good energy absorption capacity and water resistance, and large tracts of land is built in the process can not produce shrinkage crack.
With the sandstone in regeneration or all or part of replacement ordinary concrete of primary EPS particle, and the admixture Admixture forms, and its density is little, water-tolerant, and energy absorption capacity is strong, is all very high building materials of a kind of economic benefit and social benefit.The existing arch bridge quantity of China is more, and conventional arch bridge packing density is bigger, and intensity is lower, is difficult to guarantee globality under the vehicular load effect, can cause diseases such as deck paving cracking destruction, side wall bulging, and then influence structure stress.At present, arch bridge is reinforced main the employing and is strengthened the arch ring cross section, changes structural system, applies method such as external prestressing, and the starting point of these methods all is to improve the supporting capacity of main supporting member.
Summary of the invention
Technical scheme of the present invention is: a kind of EPS light weight concrete construction is reinforced the method for arch bridge, may further comprise the steps:
A. cut the filler of waiting to reinforce on the old deck paving of arch bridge and the former arch;
B. exposed hogback concrete being cut a hole hair handles;
C. prepare the EPS light weight concrete construction, pour into a mould, vibrate and roll;
D. build the bridge floor steel concrete layer of mating formation again.
Above-mentioned a kind of EPS light weight concrete construction is reinforced the method for arch bridge, comprises also before the described step b that the side wall of a pair of destruction removes step.
Above-mentioned a kind of EPS light weight concrete construction is reinforced the method for arch bridge, comprises also after the described hogback concrete chisel hair step that one repairs the side wall step.
Above-mentioned a kind of EPS light weight concrete construction is reinforced the method for arch bridge, also is included in arch before the described steps d and upward overlays waterproofing course on the filler.
Above-mentioned a kind of EPS light weight concrete construction is reinforced the method for arch bridge, describedly adopts symmetry to cut mode when cutting the filler of waiting to reinforce on the old deck paving of arch bridge and the former arch.
It mainly is by bridge is rationally unloaded that the present invention adopts the EPS light weight concrete construction to change to fill out the arch bridge filler, and then improves structure bearing capacity.Adopt this method to reinforce arch bridge, can obtain following beneficial effect: 1, can significantly alleviate the deadweight of arch bridge superstructure, and EPS light weight concrete construction intensity is higher, can strengthen the globality of spandrel construction, strengthens the diffusion effect of bridge floor load; 2, adjust and optimize arch axis coefficient, thereby effectively improve the supporting capacity of double curvature arched bridge; 3, EPS light weight concrete construction cost is low, and can recycle the waste and old polystyrol material, has good economic benefit and environmental benefit.Adopt the EPS light weight concrete construction to change and fill out upward filler of arch, can avoid effectively that conventional fillers density is big, the shortcoming of strength deficiency, change and rationally to unload arch bridge after filling out, and can strengthen the globality of superstructure, reach the purpose of recovering or improving load carrying capacity of bridge, this method can cooperate the conventional reinforcement means of arch bridge, carries out the reinforcing of arch bridge as affixing steel plate, increasing section, enhancing lateral ties etc., and effect is better.
Description of drawings
Fig. 1 is the reinforcing flow chart of most preferred embodiment of the present invention.
Fig. 2 is the arch bridge longitudinal sectional drawing.
Fig. 3 is for cutting on deck paving, the arch arch bridge schematic diagram behind the filler.
Fig. 4 shows the arch bridge structure intention after completing into for changing.
The specific embodiment
Embodiment 1
A kind of EPS light weight concrete construction is reinforced the method for arch bridge, may further comprise the steps:
A. cut the filler of waiting to reinforce on the old deck paving of arch bridge and the former arch;
B. exposed hogback concrete being cut a hole hair handles;
C. prepare the EPS light weight concrete construction, pour into a mould, vibrate and roll;
D. build the bridge floor steel concrete layer of mating formation again.
Embodiment 2
A kind of EPS light weight concrete construction is reinforced the method for arch bridge, may further comprise the steps:
A. cut the filler of waiting to reinforce on the old deck paving of arch bridge and the former arch;
B. the side wall that destroys is removed;
C. exposed hogback concrete being cut a hole hair handles;
D. prepare the EPS light weight concrete construction, pour into a mould, vibrate and roll;
E. build the bridge floor steel concrete layer of mating formation again.
Embodiment 3
A kind of EPS light weight concrete construction is reinforced the method for arch bridge, may further comprise the steps:
A. cut the filler of waiting to reinforce on the old deck paving of arch bridge and the former arch;
B. the side wall that destroys is removed;
C. exposed hogback concrete being cut a hole hair handles;
D. repair side wall;
E. prepare the EPS light weight concrete construction, pour into a mould, vibrate and roll;
F. build the bridge floor steel concrete layer of mating formation again.
Embodiment 4
A kind of EPS light weight concrete construction is as shown in Figure 1 reinforced the method for arch bridge, may further comprise the steps:
A. symmetry cuts the filler of waiting to reinforce on the old deck paving of arch bridge and the former arch;
B. the side wall that destroys is removed;
C. exposed hogback concrete being cut a hole hair handles;
D. repair side wall;
E. prepare the EPS light weight concrete construction, pour into a mould, vibrate and roll;
F. build the bridge floor steel concrete layer of mating formation again;
G. filler overlays waterproofing course on arch.
Shown in Fig. 2-3, it is respectively the arch bridge longitudinal sectional drawing; Cut on deck paving, the arch arch bridge schematic diagram behind the filler; Change and complete into schematic diagram behind the arch bridge structure.
The above only is preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the technology of the present invention principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (5)
1. the method that the EPS light weight concrete construction is reinforced arch bridge is characterized in that, may further comprise the steps:
A. cut the filler of waiting to reinforce on the old deck paving of arch bridge and the former arch;
B. exposed hogback concrete being cut a hole hair handles;
C. prepare the EPS light weight concrete construction, pour into a mould, vibrate and roll;
D. build the bridge floor steel concrete layer of mating formation again.
2. a kind of EPS light weight concrete construction according to claim 1 is reinforced the method for arch bridge, it is characterized in that, comprises also before the described step b that the side wall of a pair of destruction removes step.
3. the method for a kind of EPS light weight concrete construction reinforcing arch bridge according to claim 2 is characterized in that, comprises also after the described hogback concrete chisel hair step that one repairs the side wall step.
4. the method for a kind of EPS light weight concrete construction reinforcing arch bridge according to claim 1 is characterized in that, also is included in arch before the described steps d and upward overlays waterproofing course on the filler.
5. the method for reinforcing arch bridge according to each described a kind of EPS light weight concrete construction of claim 1-4 is characterized in that, describedly adopts symmetry to cut mode when cutting the filler of waiting to reinforce on the old deck paving of arch bridge and the former arch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101400163A CN103184723A (en) | 2012-05-09 | 2012-05-09 | Method for reinforcing arch bridge with EPS Expandable Polystyrene light concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101400163A CN103184723A (en) | 2012-05-09 | 2012-05-09 | Method for reinforcing arch bridge with EPS Expandable Polystyrene light concrete |
Publications (1)
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| CN103184723A true CN103184723A (en) | 2013-07-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012101400163A Pending CN103184723A (en) | 2012-05-09 | 2012-05-09 | Method for reinforcing arch bridge with EPS Expandable Polystyrene light concrete |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104074139A (en) * | 2014-06-18 | 2014-10-01 | 广西交通科学研究院 | Method for adjusting weight of fillers on masonry arch bridge in partitioning manner |
| CN105970838A (en) * | 2016-06-03 | 2016-09-28 | 湖南城市学院 | Deck type arch bridge vault padding unloading and reinforcing construction method and application |
| CN109295864A (en) * | 2017-07-24 | 2019-02-01 | 东北林业大学 | It is a kind of to carry out cored slab Shear Strengthening structure and method using hinge gap space |
| CN113235462A (en) * | 2021-05-08 | 2021-08-10 | 东南大学 | Method and device for reinforcing stone arch bridge |
Citations (4)
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| CN1278572A (en) * | 2000-07-13 | 2001-01-03 | 华中科技大学 | New method of changing arch bridge into beam-arch bridge |
| JP2001090026A (en) * | 1999-09-28 | 2001-04-03 | Fumio Yamada | Structure of arch bridge, formation method thereof and reinforcing method of bridge |
| JP2006090026A (en) * | 2004-09-24 | 2006-04-06 | Oriental Construction Co Ltd | Repairing/reinforcing structure of existing steel member arch bridge |
| CN201224863Y (en) * | 2008-07-08 | 2009-04-22 | 江西中煤建设工程有限公司 | Double-cantilever beam plate arch bridge |
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2012
- 2012-05-09 CN CN2012101400163A patent/CN103184723A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001090026A (en) * | 1999-09-28 | 2001-04-03 | Fumio Yamada | Structure of arch bridge, formation method thereof and reinforcing method of bridge |
| CN1278572A (en) * | 2000-07-13 | 2001-01-03 | 华中科技大学 | New method of changing arch bridge into beam-arch bridge |
| JP2006090026A (en) * | 2004-09-24 | 2006-04-06 | Oriental Construction Co Ltd | Repairing/reinforcing structure of existing steel member arch bridge |
| CN201224863Y (en) * | 2008-07-08 | 2009-04-22 | 江西中煤建设工程有限公司 | Double-cantilever beam plate arch bridge |
Non-Patent Citations (2)
| Title |
|---|
| 孙晶辉等: "拱上换填法维修加固双曲拱桥的实践", 《山东水利》, no. 2, 28 February 2006 (2006-02-28), pages 40 * |
| 金辉等: "作为台后填料的EPS混凝土性能研究", 《公路交通科技（应用技术版）》, no. 8, 31 August 2011 (2011-08-31), pages 114 - 118 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104074139A (en) * | 2014-06-18 | 2014-10-01 | 广西交通科学研究院 | Method for adjusting weight of fillers on masonry arch bridge in partitioning manner |
| CN104074139B (en) * | 2014-06-18 | 2016-06-01 | 广西交通科学研究院 | A kind of subregion regulates the method for bricklaying arch bridge arch fill severe |
| CN105970838A (en) * | 2016-06-03 | 2016-09-28 | 湖南城市学院 | Deck type arch bridge vault padding unloading and reinforcing construction method and application |
| CN105970838B (en) * | 2016-06-03 | 2018-06-01 | 湖南城市学院 | Deck Arch Bridges vault filler unloads and reinforced construction method and application |
| CN109295864A (en) * | 2017-07-24 | 2019-02-01 | 东北林业大学 | It is a kind of to carry out cored slab Shear Strengthening structure and method using hinge gap space |
| CN109295864B (en) * | 2017-07-24 | 2023-10-31 | 东北林业大学 | Structure and method for carrying out shear strengthening on hollow slab by utilizing hinge joint space |
| CN113235462A (en) * | 2021-05-08 | 2021-08-10 | 东南大学 | Method and device for reinforcing stone arch bridge |
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Application publication date: 20130703 |