CN107237262A - A kind of concrete arch rib construction method - Google Patents
A kind of concrete arch rib construction method Download PDFInfo
- Publication number
- CN107237262A CN107237262A CN201710432229.6A CN201710432229A CN107237262A CN 107237262 A CN107237262 A CN 107237262A CN 201710432229 A CN201710432229 A CN 201710432229A CN 107237262 A CN107237262 A CN 107237262A
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- Prior art keywords
- section
- arch rib
- arch
- concrete
- vault
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Classifications
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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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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The present invention relates to technical field of bridge construction, in particular to a kind of concrete arch rib construction method.Arch rib to be onstructed is divided into multiple spaced apart sections, template is built in bridge floor, relies on template to pour the separation trough between section and reserved adjacent segment successively, after the completion for the treatment of that all sections are poured, concrete is filled in separation trough all sections are connected as entirety, form arch rib.The present invention passes through section construction, by the stress reduction produced during arch rib pouring construction to minimum, avoid because the generation for the change of arch costal shape problem that stress release is caused, it ensure that the requirement of arch rib line style, arch rib equitable subsection improves construction effect simultaneously, the duration has been saved, arch springing concrete problem easy to crack is solved.
Description
Technical field
The present invention relates to technical field of bridge construction, in particular to a kind of concrete arch rib construction method.
Background technology
In Concrete Tied Arch, arch rib is the main forced position of the bridge type, and routinely the mode of closing up is：Armored concrete
Cast-in-place poured successively from arch springing to vault to arch rib of arch rib is closed up, and requires high to concrete Slow setting time and poring rate, it is necessary to
Formerly pour completion arch rib before concrete initial set to close up, concrete placings process control difficulties are higher, lateral stability is poor, risk is larger, take
It is long；Poured with arch rib concrete, elastic deformation occurs for support system, arch rib Root Stress is constantly accumulated, easily causes arch springing and open
Split；Simultaneously coagulation soil property is influenceed because support is settled the factors such as uneven and arch springing concrete shrinkage and creep produce local stress
Amount.
The content of the invention
Present invention aim to the deficiency for solving above-mentioned background technology, there is provided a kind of concrete arch rib construction method.
The technical scheme is that：A kind of concrete arch rib construction method, it is characterised in that：By arch rib to be onstructed point
Multiple spaced apart sections are segmented into, template is built in bridge floor, rely on template to pour successively between section and reserved adjacent segment
Separation trough, after the completion for the treatment of that all sections are poured, concrete is filled in separation trough all sections is connected as entirety, form arch
Rib.
It is further arch rib is divided into section method be：Arch rib to be onstructed is divided into the odd number no less than three sections
Section section.
Vault section at the top of further described arch rib is independent section, positioned at vault section along section from bridge to both sides
Section is arranged symmetrically centered on vault.
It is further pour section successively method be：Symmetrically poured from the bottom to top to both sides along bridge since arch rib, first
Arch springing section is poured, vault section is finally poured.
It is further pour arch springing section method be：Arch springing section is poured together with bridge floor when pouring bridge floor.
Further comprise the following steps：
1) when, pouring bridge floor, arch springing section is poured together with bridge floor；
2) full framing, is built on bridge floor, template is built on full framing；
3), rely on template symmetrically to pour rib-lifting section from the bottom to top since the arch springing of both sides, arranged between adjacent segment
Separation trough；
4) vault section symmetrically finally, is poured from the bottom to top, is closed up at vault；
5), after after all segmental stabilizations, the separation trough between all adjacent segments has been filled at temperature stable night
Into；
6), after after the concrete setting in separation trough, form removal and full framing complete the pouring construction of arch rib.
The present invention is by section construction, by the stress reduction produced during arch rib pouring construction to minimum, it is to avoid because
The generation of the change of arch costal shape problem caused for stress release, it is ensured that the requirement of arch rib line style, while arch rib equitable subsection is improved
Construction effect, has saved the duration, solves arch springing concrete problem easy to crack.
Brief description of the drawings
Fig. 1：The segmented construction schematic diagram of arch rib of the present invention；
Wherein：1-arch rib；1.1-arch springing section；1.2-first segment；1.3-second section；1.4-the three section；
1.5-vault section；2-bridge floor；3-separation trough.
Embodiment
The present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
Such as Fig. 1, the present embodiment passes through segmented independent construction by the way that arch rib 1 is divided into multiple sections, it is to avoid arch rib
Line style change and the problem of cracking in arch foot caused by stress dissipates in 1 work progress.
Arch rib 1 is divided into arch springing section 1.1 and vault section 1.5, wherein arch springing section 1.1 and vault section by the present embodiment
A rib-lifting section is comprised at least between section 1.5, as shown in figure 1, first being illustrated by taking three rib-lifting sections as an example.Under at least
Respectively first segment 1.2, the section 1.4 of second section 1.3 and the 3rd, opposite side have been arranged symmetrically the other three section.
Separation trough 3 is provided between adjacent rib-lifting section, wherein, between arch springing section 1.1 and adjacent first segment 1.2
There is no separation trough 3, be the arch springing section 1.1 when pouring first segment 1.2 because arch springing section 1.1 pours shaping together with bridge floor 2
It has been molded firm, in the absence of the release and dissipation of stress, and when pouring first segment 1.2, the upper end of first segment 1.2 has point
Separate slot, the stress of first segment 1.2 can be dissipated by the separation trough 1.2 of upper end.In addition, the angle of inclination of arch springing part
It is larger, if staying separation trough 3 between arch springing section 1.1 and first segment 1.2, it is unfavorable for the constructing operation of first segment 1.2.
During practice of construction, 1) when, pouring bridge floor 2, arch springing section 1.1 is poured together with bridge floor 2, bridge floor 2 is being built
During formwork for placing, the formwork for placing of arch springing section 1.1 is reserved, then arch springing section 1.1 is poured out together with bridge floor 2；
2) full framing, is built on bridge floor, template is built on full framing；
3), rely on template symmetrically to pour rib-lifting section from the bottom to top since the arch springing of both sides, rely on arch springing section 1.1 symmetrical
The first segment 1.2 of both sides is poured, second section 1.3 is then symmetrically poured, is stayed between first segment 1.2 and second section 1.3
There is separation trough 3, then reserve symmetrical the 3rd section 1.4 for pouring both sides of separation trough 3；
4) after the completion of, the 3rd section 1.4 is poured, finally it is left vault section 1.5, the arch rib center line of vault section 1.5 1
It is arranged symmetrically, therefore can symmetrically pours out vault section 1.5 from the bottom to top, finally converges at the vault of vault section 1.5, it is complete
Arching epimerite section 1.5 is poured, and wherein vault section 1.5 is arranged symmetrically along bridge to the separation trough 3 of both sides with the center line of arch rib；
5), after after all segmental stabilizations, all separation troughs 3 are filled into completion, all points at temperature stable night
Separate slot 3 is disposably completed, and avoids excessive temperature differentials from causing the concrete in separation trough 3 easily to be opened during the night for being selected in temperature stabilization
Split；
6), after after the concrete setting in separation trough 3, form removal and full framing complete the pouring construction of arch rib.
General principle, principal character and the advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the simply explanation described in above-described embodiment and specification is originally
The principle of invention, various changes and modifications of the present invention are possible without departing from the spirit and scope of the present invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent is defined.
Claims (6)
1. a kind of concrete arch rib construction method, it is characterised in that：Arch rib (1) to be onstructed is divided into multiple spaced apart
Section, template is built in bridge floor (2), is relied on template to pour the separation trough (3) between section and reserved adjacent segment successively, is treated institute
Have after the completion of section pours, concrete is filled in separation trough (3) all sections are connected as entirety, form arch rib (1).
2. a kind of concrete arch rib construction method as claimed in claim 1, it is characterised in that：Arch rib (1) is divided into section
Method be：Arch rib (1) to be onstructed is divided into the odd number section section no less than three sections.
3. a kind of concrete arch rib construction method as claimed in claim 2, it is characterised in that：At the top of described arch rib (1)
Vault section (1.5) be independent section, positioned at vault section (1.5) along bridge to the section of both sides the symmetrical cloth centered on vault
Put.
4. a kind of concrete arch rib construction method as claimed in claim 1, it is characterised in that：The method for pouring section successively
For：Symmetrically poured from the bottom to top to both sides along bridge since arch rib (1), first pour arch springing section (1.1), finally pour vault section
Section (1.5).
5. a kind of concrete arch rib construction method as claimed in claim 4, it is characterised in that：Pour arch springing section (1.1)
Method is：Arch springing section (1.1) is poured together with bridge floor (2) when pouring bridge floor (2).
6. a kind of concrete arch rib construction method as claimed in claim 1, it is characterised in that：Comprise the following steps：
1) when, pouring bridge floor (2), arch springing section (1.1) is poured together with bridge floor (2)；
2) full framing, is built on bridge floor (2), template is built on full framing；
3) arch rib (1) section is symmetrically poured from the bottom to top, relying on template at the arch springing of both sides, is arranged between adjacent segment
Separation trough (3)；
4) vault section (1.5) symmetrically finally, is poured from the bottom to top, is closed up at vault；
5), after after all segmental stabilizations, the separation trough (3) between all adjacent segments has been filled at temperature stable night
Into；
6), after after the concrete setting in separation trough (3), form removal and full framing complete the pouring construction of arch rib (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710432229.6A CN107237262A (en) | 2017-06-09 | 2017-06-09 | A kind of concrete arch rib construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710432229.6A CN107237262A (en) | 2017-06-09 | 2017-06-09 | A kind of concrete arch rib construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107237262A true CN107237262A (en) | 2017-10-10 |
Family
ID=59987100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710432229.6A Pending CN107237262A (en) | 2017-06-09 | 2017-06-09 | A kind of concrete arch rib construction method |
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| CN (1) | CN107237262A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108193601A (en) * | 2018-01-08 | 2018-06-22 | 王涛 | A kind of method for bridge construction |
| CN108286223A (en) * | 2018-04-17 | 2018-07-17 | 中铁二十局集团第四工程有限公司 | A kind of box arch ring segmentation disposal molding construction forming panel and construction method |
| CN110700071A (en) * | 2019-11-16 | 2020-01-17 | 福州大学 | Prefabricated assembled UHPC plate type arch bridge and construction method thereof |
| CN110886237A (en) * | 2019-12-25 | 2020-03-17 | 中交路桥华南工程有限公司 | Arch bridge construction method |
| CN113089498A (en) * | 2021-05-10 | 2021-07-09 | 中国电建集团贵阳勘测设计研究院有限公司 | Concrete ring-dividing and sectional cast-in-place method for main arch ring of large-span arch bridge |
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| JP2002201609A (en) * | 2000-12-28 | 2002-07-19 | Ps Corp | Construction method for concrete arch bridge |
| JP2004011196A (en) * | 2002-06-05 | 2004-01-15 | Sumitomo Mitsui Construction Co Ltd | Erection method for arch rib of concrete arch bridge |
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| CN105200925A (en) * | 2015-10-21 | 2015-12-30 | 杭州江润科技有限公司 | Construction method of ultra-wide main arch ring of large span open-spandrel type arch bridge in extremely-cold regions |
| CN106592406A (en) * | 2016-12-30 | 2017-04-26 | 河南省交通规划设计研究院股份有限公司 | Through tied arch bridge and construction method thereof |
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| JP2004011196A (en) * | 2002-06-05 | 2004-01-15 | Sumitomo Mitsui Construction Co Ltd | Erection method for arch rib of concrete arch bridge |
| CN101024977A (en) * | 2007-03-17 | 2007-08-29 | 中铁六局集团太原铁路建设有限公司 | Prepressing-free construction process for large-span steel-reinforced concrete arch structure |
| CN105200925A (en) * | 2015-10-21 | 2015-12-30 | 杭州江润科技有限公司 | Construction method of ultra-wide main arch ring of large span open-spandrel type arch bridge in extremely-cold regions |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108193601A (en) * | 2018-01-08 | 2018-06-22 | 王涛 | A kind of method for bridge construction |
| CN108286223A (en) * | 2018-04-17 | 2018-07-17 | 中铁二十局集团第四工程有限公司 | A kind of box arch ring segmentation disposal molding construction forming panel and construction method |
| CN108286223B (en) * | 2018-04-17 | 2023-08-25 | 中铁二十一局集团第四工程有限公司 | Forming template for sectional one-time forming construction of box-type arch ring and construction method |
| CN110700071A (en) * | 2019-11-16 | 2020-01-17 | 福州大学 | Prefabricated assembled UHPC plate type arch bridge and construction method thereof |
| CN110700071B (en) * | 2019-11-16 | 2024-06-04 | 福州大学 | Prefabricated assembled UHPC plate type arch bridge and construction method thereof |
| CN110886237A (en) * | 2019-12-25 | 2020-03-17 | 中交路桥华南工程有限公司 | Arch bridge construction method |
| CN110886237B (en) * | 2019-12-25 | 2021-02-12 | 中交路桥华南工程有限公司 | Arch bridge construction method |
| CN113089498A (en) * | 2021-05-10 | 2021-07-09 | 中国电建集团贵阳勘测设计研究院有限公司 | Concrete ring-dividing and sectional cast-in-place method for main arch ring of large-span arch bridge |
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Application publication date: 20171010 |
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