CN102322026B - Reinforcing method of masonry arch bridge - Google Patents
Reinforcing method of masonry arch bridge Download PDFInfo
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- CN102322026B CN102322026B CN 201110247277 CN201110247277A CN102322026B CN 102322026 B CN102322026 B CN 102322026B CN 201110247277 CN201110247277 CN 201110247277 CN 201110247277 A CN201110247277 A CN 201110247277A CN 102322026 B CN102322026 B CN 102322026B
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Abstract
The invention discloses a reinforcing method of a masonry arch bridge, which comprises the following steps of: a, planting ribs on an arch ring of the arch bridge along the cambered surface direction of the arch bridge; b, planting ribs at the position close to the two sides, on the circular arc surface of the arch ring along the cambered surface direction of the arch bridge; and c, forming symmetrically distributed reinforced concrete ribs along the distribution direction of the planted ribs in the step a and the step b in a way of casting molding, wherein the cross section of the reinforced concrete ribs is L-shaped. The reinforced concrete ribs which are of integral structures are formed along the two sides of the arch ring in the way of planting the ribs and casting concrete, then load can be directly transferred to an arch base through the symmetrically distributed reinforced concrete ribs of which the cross section is L-shaped, and the stress to the reinforced concrete ribs is equal to that to a ribbed arch bridge. When the method is compared with the method of singly increasing the area of the arch ring, the dependence on the primary arch ring is smaller, even the primary arch ring can be supported, the damage to the primary arch ring is small, the requirement of increasing the loading capacity of the masonry arch bridge is met, and the damage to the primary old arch ring is avoided to the maximal degree.
Description
Technical field
The present invention relates to a kind of field of bridge construction, particularly a kind of reinforcement means of masonry arch bridge.
Background technology
As time goes on, present a considerable amount of masonry arch bridge owing to the variation of the erosion corrosion of river, external environment, bear reasons such as mobile load growth, building stones weathering and cause damages such as arch bridge main arch circle, spandrel arch circle, thereby cause bearing capacity to descend, or because current requirement raising needs to improve existing arch bridge bearing capacity etc., therefore a large amount of masonry arch bridges need carry out maintenance and renovation to main arch or spandrel arch etc., to eliminate safe hidden trouble.In the prior art, at main arch circle bearing capacity deficiency, have adopt affixing steel plate or cloth or above or below arch ring full-bridge wide increase certain thickness steel concrete or around arch ring reinforcement means such as newly-increased steel concrete cuff.Affixing steel plate or cloth are improved DeGrain to the arch ring based on pressurized, and the surface weathering of barnacle arch ring obviously influences the co-operation effect of steel plate or cloth and former arch ring; The wide increase certain thickness of full-bridge steel concrete can improve bearing capacity by the enlarged cross section area above or below arch ring, but large-area bar planting is with the integrality of the former barnacle arch ring of major injury, and the raising degree of actual carrying capacity need consider former barnacle arch ring because the reduction part of bar planting damage.The method of newly-increased steel concrete cuff can increase bearing capacity by increasing section area equally around arch ring, but because concrete area is bigger, newly-increased concrete produces bigger deadweight, therefore have only the arch ring blockiness to arrange to reduce concrete amount usually, but blockiness arrange and will cause abrupt-change cross section to become the weak spot of reinforcing the back arch ring.
Summary of the invention
At the existing deficiency of existing masonry arch bridge reinforcement means, the purpose of this invention is to provide a kind of reinforcement means of masonry arch bridge, increasing the arch bridge section area, avoid when improving the arch bridge bearing capacity owing to the damage of large tracts of land bar planting to old arch bridge arch ring.
The objective of the invention is to be achieved through the following technical solutions: a kind of reinforcement means of masonry arch bridge may further comprise the steps:
A, along the cambered surface direction of arch bridge in the bar planting of the both sides of arch bridge arch ring;
B, along the position bar planting near both sides on the arc surface of arch ring of the cambered surface direction of arch bridge;
It is steel concrete rib L shaped and that be symmetrically distributed that c, the direction that distributes along bar planting among step a and the step b mode by moulding by casting forms cross section.
Further, also comprise steps d and step e:
Steps d, along arch bridge laterally on the cambered surface of arch ring with spaced mode bar planting, form the parallel vertical reinforcing bars that are distributed on the arch ring arc surface of many rows;
E, form the steel concrete crossbeams of many and column distribution along the direction of bar planting in the steps d mode by moulding by casting, described steel concrete crossbeam and L shaped steel concrete rib connect as one the formation frame construction.
Further, the lateral length of described L shaped steel concrete rib on the arch ring arc surface is not more than the height of arch ring.
Further, the spacing between the described steel concrete crossbeam is 0.5 times～2 times of arch ring transverse width.
Beneficial effect of the present invention: the reinforcement means that adopts arch bridge of the present invention, L shaped steel concrete rib can require the flexible design sectional dimension according to the concrete bearing capacity raising of existing arch ring, increase the newly-increased effective working depth of concrete under same newly-increased sectional area situation, concrete amount is less; Mainly in the construction of arch ring both sides, reduce difficulty of construction, significantly save construction cost and reduction of erection time; Newly-increased L shaped arch rib arranges and load directly is passed to abut along total length, and himself stressed ribbed arch bridge that is equivalent to is compared with simple increase arch ring area, former arch ring relied on littler, even can support former arch ring; Little to original arch ring damage, form the frame construction with good integrity with newly-increased steel bar concrete crossbeam, both satisfied the requirement that improves the stone arch bridge bearing capacity, avoided the damage to original old arch ring again to greatest extent.
Description of drawings
Below in conjunction with the drawings and specific embodiments the present invention is further described:
Fig. 1 is for adopting the arch bridge structure schematic diagram after reinforcement means of the present invention is reinforced;
Fig. 2 be among Fig. 1 along A-A to sectional view;
Fig. 3 be among Fig. 1 along B-B to sectional view.
The specific embodiment
Fig. 1 is for adopting the arch bridge structure schematic diagram after reinforcement means of the present invention is reinforced; Fig. 2 be among Fig. 1 along A-A to sectional view; Fig. 3 be among Fig. 1 along B-B to sectional view.As shown in the figure, the reinforcement means of the masonry arch bridge of present embodiment may further comprise the steps:
A, implant reinforcing bar 4 along the cambered surface direction of arch bridge in the both sides of arch bridge arch ring 3;
B, implant reinforcing bar 5 along the cambered surface direction of the arch bridge position near both sides on the arc surface of arch ring 3;
It is steel concrete rib 1 L shaped and that be symmetrically distributed that c, the direction that distributes along bar planting among step a and the step b mode by moulding by casting forms cross section.
Mode by bar planting and fluid concrete, along the newly-increased steel concrete rib that forms integrative-structure in the both sides of arch ring, the cross section of symmetric arrangement is that L shaped steel concrete rib can directly be passed to abut with load, himself stressed ribbed arch bridge that is equivalent to, compare with simple increase arch ring area, rely on littler to former arch ring, even can support former arch ring, little to original arch ring damage, both satisfy the requirement that improves the masonry arch bridge bearing capacity, avoided the damage to original old arch ring again to greatest extent.Simultaneously, newly-increased L shaped steel bar concrete arch rib can be according to the raising requirement of the concrete bearing capacity of existing arch ring, the shape in flexible design cross section and size, and effective working depth of the L shaped steel concrete of increase under same sectional area, concrete amount is less; And mainly in the construction of arch ring both sides, reduce difficulty of construction, significantly save construction cost and reduction of erection time.
As above-described embodiment is further improved, arch bridge reinforcement means of the present invention also comprises steps d and step e:
Steps d, along arch bridge laterally on the cambered surface of arch ring with spaced mode planting rebar 6, form the parallel vertical reinforcing bars that are distributed on the arch ring arc surface of many rows;
E, form the steel concrete crossbeams 2 of many and column distribution along the direction of bar planting in the steps d mode by moulding by casting, described steel concrete crossbeam and L shaped steel concrete rib 1 connect as one the formation frame construction.Set up steel concrete crossbeam 2, and form the one frame construction with steel concrete rib 1, form the general frame structure when steel concrete crossbeam 2 is auxiliary stressed, help to improve the stability of L shaped steel concrete rib and steel concrete crossbeam integral body, consolidation effect more obviously, reliable.
As above-described embodiment is further improved, the lateral length of described L shaped steel concrete rib on the arch ring arc surface is not more than the height of arch ring 3.In the present embodiment, the lateral length of described L shaped steel concrete rib on the arch ring arc surface equals the height of arch ring 3.According to the stressing conditions of diverse location, can select different size design, maximizedly when guaranteeing stability under loading reduce concrete consumption, alleviate the weight of steel concrete rib.
As above-described embodiment is further improved, the spacing between the described steel concrete crossbeam 2 is 0.5 times～2 times of arch ring transverse width.In the present embodiment, spacing between the steel concrete crossbeam is 1 times of arch ring transverse width. according to the former arch bridge extent of damage, calculate the stressed demand of diverse location, the position of choose reasonable steel concrete crossbeam, be conducive to the stressed of arch bridge integral body, improve supporting capacity and the safety of arch bridge.
What specify is; reinforcement means of the present invention is applicable to all types of masonry arch bridges such as comprising stone arch bridge, plain concrete arch bridge, brick arch bridge; this method is not only applicable to reinforcing and the reparation of main arch circle; equally also be applicable to reinforcing and the reparation of spandrel arch circle; adopt this method that main arch circle and the spandrel arch circle of various masonry arch bridge are reinforced and repaired, belong to the protection domain of this patent equally.
Explanation is at last, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although with reference to preferred embodiment the present invention is had been described in detail, but those of ordinary skill in the art makes amendment to technical scheme of the present invention or is equal to replacement, and not breaking away from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (4)
1. the reinforcement means of a masonry arch bridge is characterized in that: may further comprise the steps:
A, along the both sides bar planting at arch bridge arch ring (3) of the cambered surface direction of arch bridge;
B, along the position bar planting near both sides on the arc surface of arch ring (3) of the cambered surface direction of arch bridge;
It is steel concrete rib (1) L shaped and that be symmetrically distributed that c, the direction that distributes along bar planting among step a and the step b mode by moulding by casting forms cross section.
2. the reinforcement means of masonry arch bridge according to claim 1 is characterized in that: also comprise steps d and step e:
Steps d, along arch bridge laterally on the cambered surface of arch ring with spaced mode bar planting, form the parallel vertical reinforcing bars that are distributed on the arch ring arc surface of many rows;
E, form the steel concrete crossbeams (2) of many and column distribution along the mode of bar planting direction in the steps d by moulding by casting, described steel concrete crossbeam and L shaped steel concrete rib (1) connect as one the formation frame construction.
3. the reinforcement means of masonry arch bridge according to claim 1 and 2, it is characterized in that: the lateral length of described L shaped steel concrete rib on the arch ring arc surface is not more than the height of arch ring (3).
4. the reinforcement means of masonry arch bridge according to claim 2, it is characterized in that: the spacing between the described steel concrete crossbeam (2) is 0.5 times～2 times of arch ring transverse width.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110247277 CN102322026B (en) | 2011-08-24 | 2011-08-24 | Reinforcing method of masonry arch bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110247277 CN102322026B (en) | 2011-08-24 | 2011-08-24 | Reinforcing method of masonry arch bridge |
Publications (2)
| Publication Number | Publication Date |
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| CN102322026A CN102322026A (en) | 2012-01-18 |
| CN102322026B true CN102322026B (en) | 2013-08-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201110247277 Expired - Fee Related CN102322026B (en) | 2011-08-24 | 2011-08-24 | Reinforcing method of masonry arch bridge |
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Families Citing this family (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102587268B (en) * | 2012-04-12 | 2014-07-30 | 广西交通科学研究院 | Masonry arch bridge using lightweight concrete as arch filler |
| CN102776842A (en) * | 2012-08-10 | 2012-11-14 | 河北农业大学 | Comprehensive technique method for reinforcing spandrel wall |
| CN102966048B (en) * | 2012-11-28 | 2014-10-08 | 华南理工大学 | Reinforcing method for increasing bearing force of spandrel-filled arch bridge |
| CN103397604B (en) * | 2013-07-19 | 2016-06-08 | 重庆交通大学 | Construct with the stone arch bridge of flute profile arch rib composite strengthening |
| CN103614974B (en) * | 2013-10-25 | 2015-07-08 | 宇杰集团股份有限公司 | Prestress sectional steel reinforcing system of reinforced concrete arch shell bridge body |
| CN103758046B (en) * | 2013-12-31 | 2016-10-05 | 中铁大桥局集团有限公司 | The reinforcement means of CFST Arch Bridge main beam structure |
| CN103758048B (en) * | 2014-01-23 | 2016-05-04 | 岩土科技股份有限公司 | Adopt steel corrugated plating to reinforce the method for unsafe bridge |
| CN103924532B (en) * | 2014-04-18 | 2015-08-05 | 岩土科技股份有限公司 | Prestressing force incremental launching method repairs the method for double curvature arched bridge |
| CN106592451B (en) * | 2017-02-16 | 2018-07-06 | 大连理工大学 | A kind of Arch Bridges Strengthening device and method |
| CN106958208A (en) * | 2017-03-07 | 2017-07-18 | 武汉理工大学 | A kind of novel reinforced method of double curvature arched bridge |
| CN107841933B (en) * | 2017-12-08 | 2019-02-22 | 中水北方勘测设计研究有限责任公司 | A kind of Arch Bridges Strengthening method |
| CN108086172A (en) * | 2017-12-19 | 2018-05-29 | 湖北省交通规划设计院股份有限公司 | A kind of method that spandrel arch bridge is reinforced using adjustment dead load thrust line |
| CN108221692A (en) * | 2018-01-15 | 2018-06-29 | 广东省建筑工程机械施工有限公司 | A kind of Landscape Bridge arch ring stone material bar planting method |
| CN108360398A (en) * | 2018-02-06 | 2018-08-03 | 山西省交通科学研究院 | Ultra-high performance concrete-normal concrete mixed reinforcement structure and its reinforcement means |
| CN110804959B (en) * | 2019-11-26 | 2021-01-26 | 山西省交通规划勘察设计院有限公司 | Beam-arch cooperative stone arch bridge reinforcing and load shedding method |
| CN110904867B (en) * | 2019-12-12 | 2021-09-03 | 中铁二十局集团第四工程有限公司 | Construction method for dismantling upper-span existing line arch bridge |
| CN111119079A (en) * | 2020-02-27 | 2020-05-08 | 重庆交通大学 | Reinforcing construction method of solid-belly masonry arch bridge |
| CN111877191A (en) * | 2020-08-19 | 2020-11-03 | 保利长大工程有限公司 | Method for reinforcing enlarged section of double-arch bridge |
| CN111827150B (en) * | 2020-09-04 | 2021-05-14 | 保利长大工程有限公司 | Reinforcing method for additionally arranging new arch ring under main arch ring of old stone arch bridge |
| CN112813792A (en) * | 2021-02-22 | 2021-05-18 | 重庆交通大学 | Method for reinforcing arch bridge by combination of UHPC injection and bar planting |
| CN114457706A (en) * | 2022-02-28 | 2022-05-10 | 广西交科集团有限公司 | Method for reinforcing assembled abdominal arch ring of double-arch bridge |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101289837A (en) * | 2008-06-16 | 2008-10-22 | 江西中煤建设工程有限公司 | Process for reinforcing double arch bridge by replacing ridged main arch ring section with box section |
| CN101435185A (en) * | 2008-12-17 | 2009-05-20 | 重庆交通大学 | Case type closed reinforcing method of reinforced concrete ribbed arch bridge |
| CN101603291A (en) * | 2009-06-25 | 2009-12-16 | 核工业西南勘察设计研究院有限公司 | Construction method for strengthening arch foot crack of stone arch bridge |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10183534A (en) * | 1996-12-24 | 1998-07-14 | Japan Zaipetsukusu Kk | Reinforcing method for concrete bridge pier/support and floor board |
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2011
- 2011-08-24 CN CN 201110247277 patent/CN102322026B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101289837A (en) * | 2008-06-16 | 2008-10-22 | 江西中煤建设工程有限公司 | Process for reinforcing double arch bridge by replacing ridged main arch ring section with box section |
| CN101435185A (en) * | 2008-12-17 | 2009-05-20 | 重庆交通大学 | Case type closed reinforcing method of reinforced concrete ribbed arch bridge |
| CN101603291A (en) * | 2009-06-25 | 2009-12-16 | 核工业西南勘察设计研究院有限公司 | Construction method for strengthening arch foot crack of stone arch bridge |
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| CN102322026A (en) | 2012-01-18 |
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