CN101289835A - Process for rebuilding double arch bridge by replacing arch style construction on arch with continuous slabs - Google Patents
Process for rebuilding double arch bridge by replacing arch style construction on arch with continuous slabs Download PDFInfo
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- CN101289835A CN101289835A CNA200810106923XA CN200810106923A CN101289835A CN 101289835 A CN101289835 A CN 101289835A CN A200810106923X A CNA200810106923X A CN A200810106923XA CN 200810106923 A CN200810106923 A CN 200810106923A CN 101289835 A CN101289835 A CN 101289835A
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Abstract
The invention relates to a reforming method of replacing double arch bridges in arched spandrel structure with continuous slabs. The method comprises the following steps that: a bridge floor system, a spandrel arch ring and a solid web section of a double arch bridge in arched spandrel structure are dismantled first; a plate girder pier is arranged on a ribbed main arch ring, and a former spandrel arch pier is heightened to form another plate girder pier, ensuring that the plate girder piers are identical in interval and horizontal height; bridge piers are heightened to ensure that the horizontal height of the bridge piers is equal to the plate girder piers; continuous slabs are cast on the plate girder piers and the bridge piers, and then the continuous slabs are paved with a bridge deck. The method improves the stress state of the ribbed main arch ring and ensures that the stress of the ribbed main arch ring tends to be more reasonable; as the arched spandrel structure is replaced with the continuous slabs, the dead load weight of an arch is reduced, and the bearing capacity of the bridge is improved correspondingly; the method saves the occupancy of natural resources and economic resources, which is caused by abandonment, old bridge demolishment and reconstruction, has the reinforcement cost which is 50 percent of new construction cost, and avoids the pollution on the natural environment caused by abandonment and old bridge demolishment.
Description
Technical field
The present invention relates to the remodeling method of bridge, especially a kind of continuous slab substitutes the double curvature arched bridge remodeling method of arch building on extrados.
Background technology
Double curvature arched bridge is still the bridge type that China is exclusive, have Chinese nation's breath and characteristics so far, because this bridge type has handsome in appearance, cost economic, the building technology characteristic of simple, so 60～eighties of last century, China built the bridge of this a large amount of form of structure, to satisfy the needs of communications and transportation.This bridge type generally all is made up of arch building on extrados (comprising spandrel arch pier, spandrel arch circle, real abdomen section and bridge deck), rib shape main arch circle and substructure (pier, platform) and safeguard structure etc.Because: 1, the loading characteristic of double curvature arch is to be passed to spandrel arch and real abdomen section by bridge floor, and real abdomen section is passed to arch-wave, and then by arch-wave power transmission each arch rib to rib shape main arch circle; Then then directly power transmission is to arch rib by impost for spandrel arch, and arch rib is passed to its above-mentioned power of bearing the pier of bridge etc., and arch-wave is born by the anti-lateral thrust of sway brace between arch rib and arch rib because of the stressed horizontal thrust that produces; Therefore, the whole force-bearing situation more complicated of double curvature arched bridge; 2, rib shape main arch circle is for box-shaped or plate shape main arch circle, and vertical and horizontal rigidity is all relatively poor; 3, bulk deformation inaccurate coordination; 4, too small, the stressed complexity in cross section of the bonding surface between each arch rib of rib shape main arch circle and arch-wave, globality are poor; 5, the anti-lateral thrust insufficient rigidity of the integral rigidity of lateral ties deficiency and each arch rib itself between each arch rib of rib shape main arch circle; 6, design load is on the low side at that time.Cause this bridge type after the operation several years, just disease in various degree to occur, and the more serious potential safety hazard of existence, the demand that can not adapt to the growing traffic volume, complete removal is rebuild then not only needs bigger economy input, and bigger to the occupancy of nature and social resources, discarded object is also bigger to the pollution of environment.
Summary of the invention
Purpose of the present invention just provides the double curvature arched bridge remodeling method of the alternative arch building on extrados of continuous slab that a kind of cost is low, security performance is high, supporting capacity is strong.
Continuous slab of the present invention substitutes the double curvature arched bridge remodeling method of arch building on extrados, may further comprise the steps:
1, removes bridge deck, spandrel arch circle and the real abdomen section of arch building on extrados double curvature arched bridge;
2, on rib shape main arch circle, set up the plate-girder pier, and add plateau spandrel arch pier and form the plate-girder pier, the spacing of plate-girder pier is equated, level height equates;
3, add high pier, the level height of bridge pier is equated with the plate-girder pier;
4, then, on plate-girder pier and bridge pier, pour into a mould continuous slab, the bridge floor of on continuous slab, mating formation again.
The method that continuous slab of the present invention substitutes the double curvature arched bridge remodeling method of arch building on extrados has the following advantages:
1, improves the stress of rib shape main arch circle, will change into the simple vertical load that the plate-girder pier is transmitted, make the stressed of rib shape main arch circle more be tending towards reasonable by the vertical load and the horizontal thrust of the transmission of real abdomen section;
2, because the plate-girder pier is an overall structure at direction across bridge, itself and the transverse integral that has strengthened rib shape main arch circle after rib shape main arch circle is connected have improved the ability of rib shape main arch circle integral body bearing load to a certain extent;
3, changing the spandrel arch circle is continuous slab, has eliminated the spandrel arch circle because of the inharmonious disease that causes of rib shape main arch circle distortion;
4, owing to substitute arch building on extrados (comprising spandrel arch pier, spandrel arch circle, real abdomen section and bridge deck) with continuous slab, alleviated the upward weight of dead load of arch, the supporting capacity of bridge is corresponding to be improved;
5, saved because of discarded, remove taking of natural resource that old bridge and reconstruction bring and economic resources, the reinforcing expense is about about 50% of newly-built expense;
7, avoided because of pollution discarded, that the dismounting old bridge brings natural environment.
Description of drawings
Fig. 1 is for adopting the improved arched bridge structural representation of method of the present invention;
Fig. 2 is existing arch building on extrados double curvature arched bridge structural representation;
Fig. 3 is for removing the arched bridge structural representation of arch building on extrados;
Fig. 4 is the elevational schematic view of increasing and setting up the plate-girder pier.
The specific embodiment
A kind of continuous slab substitutes the double curvature arched bridge remodeling method of arch building on extrados, bridge deck 1, spandrel arch circle 2 and the real abdomen section 3 of at first removing the arch building on extrados double curvature arched bridge; On rib shape main arch circle 5, set up plate-girder pier 6, and add plateau spandrel arch pier 4 formation plate-girder piers 7, the equal level height that reaches of spacing of plate-girder pier 6, plate-girder pier 7 is equated; Add high pier, the level height of bridge pier is equated with plate-girder pier 6; Then, cast continuous slab 8 on plate-girder pier 6, plate-girder pier 7 and bridge pier, the bridge floor 9 of on continuous slab 8, mating formation again.
Claims (1)
1, a kind of continuous slab substitutes the double curvature arched bridge remodeling method of arch building on extrados, it is characterized in that: may further comprise the steps: bridge deck (1), spandrel arch circle (2) and the real abdomen section (3) of at first removing the arch building on extrados double curvature arched bridge; On rib shape main arch circle (5), set up plate-girder pier (6), and add plateau spandrel arch pier (4) formation plate-girder pier (7), the spacing of plate-girder pier (6), plate-girder pier (7) and level height are equated; Add high pier, the level height of bridge pier is equated with plate-girder pier (6); Then, on plate-girder pier (6), plate-girder pier (7) and bridge pier, pour into a mould continuous slab (8), the bridge floor (9) of on continuous slab (8), mating formation again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200810106923XA CN101289835A (en) | 2008-06-16 | 2008-06-16 | Process for rebuilding double arch bridge by replacing arch style construction on arch with continuous slabs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200810106923XA CN101289835A (en) | 2008-06-16 | 2008-06-16 | Process for rebuilding double arch bridge by replacing arch style construction on arch with continuous slabs |
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| Publication Number | Publication Date |
|---|---|
| CN101289835A true CN101289835A (en) | 2008-10-22 |
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| CNA200810106923XA Pending CN101289835A (en) | 2008-06-16 | 2008-06-16 | Process for rebuilding double arch bridge by replacing arch style construction on arch with continuous slabs |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102251488A (en) * | 2011-04-20 | 2011-11-23 | 中铁二十三局集团第三工程有限公司 | Stone built old arch bridge reinforcing structure |
| CN102425103A (en) * | 2011-08-22 | 2012-04-25 | 彭凯 | Reinforced combined arch ring for arch bridge |
| CN102839610A (en) * | 2012-09-17 | 2012-12-26 | 贵州新联爆破工程有限公司 | Demolition blasting method for prestress concrete cantilever trussed arch bridge |
| 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 |
| CN105463982A (en) * | 2015-11-13 | 2016-04-06 | 中铁二院工程集团有限责任公司 | Spandrel architectural construction of ballastless track wide-span high-speed railway arch bridge |
| CN105970793A (en) * | 2016-05-26 | 2016-09-28 | 山东大学 | Pull-down deck type double-layer arch bridge |
| CN106088651A (en) * | 2016-07-12 | 2016-11-09 | 叶长青 | The ruggedized construction of concrete floor |
| CN106284106A (en) * | 2016-08-30 | 2017-01-04 | 武汉二航路桥特种工程有限责任公司 | A kind of double curvature arch bridge arch compound sleeve arch reinforcement means |
| CN106400704A (en) * | 2016-10-16 | 2017-02-15 | 河南省安阳西北绕城高速公路有限公司 | Masonry arch bridge longitudinal perforation dead load balance transformation method |
| CN113216022A (en) * | 2021-06-03 | 2021-08-06 | 中电建生态环境集团有限公司 | Bridge reconstruction method |
| CN114922103A (en) * | 2022-05-23 | 2022-08-19 | 广西壮族自治区桂东公路发展中心 | Multi-arch bridge rapid demolition method based on high pier bending failure |
| CN117470427A (en) * | 2023-12-25 | 2024-01-30 | 贵州路桥集团有限公司 | Horizontal stress measurement method for main arch ring during one-way erection of arch bridge deck |
-
2008
- 2008-06-16 CN CNA200810106923XA patent/CN101289835A/en active Pending
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102251488A (en) * | 2011-04-20 | 2011-11-23 | 中铁二十三局集团第三工程有限公司 | Stone built old arch bridge reinforcing structure |
| CN102425103A (en) * | 2011-08-22 | 2012-04-25 | 彭凯 | Reinforced combined arch ring for arch bridge |
| CN102425103B (en) * | 2011-08-22 | 2014-07-02 | 彭凯 | Reinforced combined arch ring for arch bridge |
| CN102839610A (en) * | 2012-09-17 | 2012-12-26 | 贵州新联爆破工程有限公司 | Demolition blasting method for prestress concrete cantilever trussed arch bridge |
| 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 |
| CN105463982A (en) * | 2015-11-13 | 2016-04-06 | 中铁二院工程集团有限责任公司 | Spandrel architectural construction of ballastless track wide-span high-speed railway arch bridge |
| CN105970793A (en) * | 2016-05-26 | 2016-09-28 | 山东大学 | Pull-down deck type double-layer arch bridge |
| CN106088651A (en) * | 2016-07-12 | 2016-11-09 | 叶长青 | The ruggedized construction of concrete floor |
| CN108104505A (en) * | 2016-07-12 | 2018-06-01 | 叶长青 | The reinforced construction method of concrete floor |
| CN106088651B (en) * | 2016-07-12 | 2018-07-24 | 叶长青 | The ruggedized construction of concrete floor |
| CN106284106A (en) * | 2016-08-30 | 2017-01-04 | 武汉二航路桥特种工程有限责任公司 | A kind of double curvature arch bridge arch compound sleeve arch reinforcement means |
| CN106284106B (en) * | 2016-08-30 | 2019-01-01 | 武汉二航路桥特种工程有限责任公司 | A kind of double curvature arch bridge arch compound sleeve arch reinforcement means |
| CN106400704A (en) * | 2016-10-16 | 2017-02-15 | 河南省安阳西北绕城高速公路有限公司 | Masonry arch bridge longitudinal perforation dead load balance transformation method |
| CN113216022A (en) * | 2021-06-03 | 2021-08-06 | 中电建生态环境集团有限公司 | Bridge reconstruction method |
| CN113216022B (en) * | 2021-06-03 | 2022-05-27 | 中电建生态环境集团有限公司 | Bridge reconstruction method |
| CN114922103A (en) * | 2022-05-23 | 2022-08-19 | 广西壮族自治区桂东公路发展中心 | Multi-arch bridge rapid demolition method based on high pier bending failure |
| CN117470427A (en) * | 2023-12-25 | 2024-01-30 | 贵州路桥集团有限公司 | Horizontal stress measurement method for main arch ring during one-way erection of arch bridge deck |
| CN117470427B (en) * | 2023-12-25 | 2024-02-23 | 贵州路桥集团有限公司 | Horizontal stress measurement method for main arch ring during one-way erection of arch bridge deck |
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Open date: 20081022 |