CN204475177U - A kind of bridge floor reinforcement pave-load layer adopting light weight concrete construction - Google Patents
A kind of bridge floor reinforcement pave-load layer adopting light weight concrete construction Download PDFInfo
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- CN204475177U CN204475177U CN201520043186.9U CN201520043186U CN204475177U CN 204475177 U CN204475177 U CN 204475177U CN 201520043186 U CN201520043186 U CN 201520043186U CN 204475177 U CN204475177 U CN 204475177U
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- bridge
- light weight
- concrete construction
- weight concrete
- reinforcement
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Abstract
The utility model provides a kind of bridge floor reinforcement pave-load layer adopting light weight concrete construction.This mat formation can increase the lateral stiffness of existing hollow articulated slab beam bridge, belong to technical field of bridge engineering.The original concrete bridge deck pavement of hollow hinged slab bridge is replaced with the light weight concrete construction strengthening course of 15 ~ 20cm.Arrangement reinforcing bar in strengthening course, arranges two-layer formation steel mesh reinforcement up and down, to increase the rigidity of strengthening course.Wherein direction across bridge adopts the reinforcing bar of diameter of phi 16, and along bridge to the distribution reinforcement adopting diameter of phi 10, reinforcing bar is elongated layout, spacing 10 ~ 15cm.Under the prerequisite not increasing dead load, rely on the new light weight concrete construction layer laid effectively to increase the lateral stiffness of existing hinged Hollow Slab Beam Bridge, improve stress performance and the durability of bridge.
Description
Technical field
The utility model belongs to technical field of bridge engineering, relates to a kind of bridge floor reinforcement pave-load layer adopting light weight concrete construction.
Background technology
The existing a large amount of Mid and minor spans reinforced concrete hollow articulated slab beam bridge of China, of the remote past owing to building, its lateral stiffness is deteriorated, and tongue and groove hinge seam can not effective force, and the lateral distribution coefficient of each plate increases.This just causes single slab bearing larger.And the pave-load layer of previous reinforced concrete hollow hinged slab bridge is generally 8 ~ 15cm, its rigidity is very little, is not enough to the lateral stiffness improving articulated slab.Single hollowcore slab causes occurring horizontal and vertical through crack bottom hollowcore slab owing to bearing the internal force larger compared with design load.Crack can affect stress performance and the endurance quality of beam further.
Utility model content
The utility model provides a kind of bridge floor reinforcement pave-load layer adopting light weight concrete construction.This mat formation can increase the lateral stiffness of existing hollow articulated slab beam bridge, improve lateral stiffness and the durability of hollow articulated slab beam bridge.
The technical solution of the utility model is:
Adopt a bridge floor reinforcement pave-load layer for light weight concrete construction, replace original concrete bridge deck pavement in hollow hinged slab bridge with the light weight concrete construction strengthening course that thickness is 15 ~ 20cm.Light weight concrete construction strengthening course is furnished with steel mesh reinforcement close to upper surface and soffit place, increase the rigidity of strengthening course, steel mesh reinforcement is that direction across bridge adopts the reinforcing bar of diameter of phi 16 and suitable bridge to the distribution reinforcement adopting diameter of phi 10, and in steel mesh reinforcement, reinforcing bar is elongated layout, spacing 10 ~ 15cm.
Effect of the present utility model and benefit are: under the prerequisite not increasing dead load, rely on the new light weight concrete construction layer laid effectively to increase the lateral stiffness of existing hinged Hollow Slab Beam Bridge, reduce the lateral distribution coefficient of single-beam.Make internal force suffered by single-beam reduce like this, stress performance and the durability of bridge can be improved.Construction is simple, and consolidation effect is obvious.
Accompanying drawing explanation
Fig. 1 adopts asphalt concrete pavement articulated slab to reinforce profile.
Fig. 2 adopts concrete pavement articulated slab to reinforce profile.
In figure: 1 asphalt concrete pavement; 2 light weight concrete construction layers; 3 upper strata direction across bridge reinforcing bars;
4 upper stratas along bridge to reinforcing bar; 5 lower floors along bridge to reinforcing bar; 6 lower floor's direction across bridge reinforcing bars; 7 flexible waterproof layers.
Detailed description of the invention
Detailed description of the invention of the present utility model is described in detail below in conjunction with technical scheme and accompanying drawing.
To the bridge adopting asphalt concrete pavement, cut the original concrete leveling layer of hollowcore slab and asphalt concrete pavement.The concavo-convex matsurface of 4-6mm is formed, to be conducive to conjunction old and new concret at bonding surface place.Colligation bridge floor strengthening course distributing bar, forms two-layer steel mesh reinforcement.Wherein direction across bridge adopts diameter of phi 16 reinforcing bar, and along bridge to the distribution reinforcement for diameter of phi 10, reinforcing bar is elongated layout, spacing 10 ~ 15cm.Build strengthening course light weight concrete construction, vibrate, after maintenance completes, above light weight concrete construction layer, arrange flexible waterproof layer, asphalt concrete pavement, completes reinforcing.
To the bridge adopting concrete pavement, cut the original concrete leveling layer of hollowcore slab and concrete pavement.First arrange flexible waterproof layer at back, on waterproofing course, colligation bridge floor strengthening course distributing bar, forms two-layer steel mesh reinforcement.Wherein direction across bridge adopts diameter of phi 16 reinforcing bar, and along bridge to the distribution reinforcement for diameter of phi 10, reinforcing bar is elongated layout, spacing 10 ~ 15cm.Build strengthening course light weight concrete construction, vibrate, after maintenance completes, complete reinforcing.
Claims (1)
1. adopt a bridge floor reinforcement pave-load layer for light weight concrete construction, it is characterized in that, this bridge floor strengthening course is mated formation and is replaced original concrete bridge deck pavement in hollow hinged slab bridge with the light weight concrete construction strengthening course that thickness is 15 ~ 20cm; Light weight concrete construction strengthening course is furnished with steel mesh reinforcement close to upper surface and soffit place, and steel mesh reinforcement is that direction across bridge adopts the reinforcing bar of diameter of phi 16 and suitable bridge to the distribution reinforcement adopting diameter of phi 10, and in steel mesh reinforcement, reinforcing bar is elongated layout, spacing 10 ~ 15cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520043186.9U CN204475177U (en) | 2015-01-21 | 2015-01-21 | A kind of bridge floor reinforcement pave-load layer adopting light weight concrete construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520043186.9U CN204475177U (en) | 2015-01-21 | 2015-01-21 | A kind of bridge floor reinforcement pave-load layer adopting light weight concrete construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204475177U true CN204475177U (en) | 2015-07-15 |
Family
ID=53630980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520043186.9U Expired - Fee Related CN204475177U (en) | 2015-01-21 | 2015-01-21 | A kind of bridge floor reinforcement pave-load layer adopting light weight concrete construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204475177U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104612049A (en) * | 2015-01-21 | 2015-05-13 | 大连理工大学 | Bridge floor reinforcing pavement layer by adoption of lightweight concrete |
-
2015
- 2015-01-21 CN CN201520043186.9U patent/CN204475177U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104612049A (en) * | 2015-01-21 | 2015-05-13 | 大连理工大学 | Bridge floor reinforcing pavement layer by adoption of lightweight concrete |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150715 Termination date: 20180121 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |