CN104612049A - Bridge floor reinforcing pavement layer by adoption of lightweight concrete - Google Patents
Bridge floor reinforcing pavement layer by adoption of lightweight concrete Download PDFInfo
- Publication number
- CN104612049A CN104612049A CN201510034135.4A CN201510034135A CN104612049A CN 104612049 A CN104612049 A CN 104612049A CN 201510034135 A CN201510034135 A CN 201510034135A CN 104612049 A CN104612049 A CN 104612049A
- Authority
- CN
- China
- Prior art keywords
- bridge
- layer
- reinforcing
- steel bars
- lightweight concrete
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000004567 concrete Substances 0.000 title claims abstract description 26
- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 20
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 12
- 239000010959 steel Substances 0.000 claims abstract description 12
- 230000002787 reinforcement Effects 0.000 claims description 17
- 238000010276 construction Methods 0.000 claims description 15
- 238000005728 strengthening Methods 0.000 claims description 10
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 abstract 1
- 239000011384 asphalt concrete Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000011150 reinforced concrete Substances 0.000 description 2
- 238000007596 consolidation process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/08—Damp-proof or other insulating layers; Drainage arrangements or devices ; Bridge deck surfacings
- E01D19/083—Waterproofing of bridge decks; Other insulations for bridges, e.g. thermal ; Bridge deck surfacings
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
- Road Paving Structures (AREA)
Abstract
The invention provides a bridge floor reinforcing pavement layer by adoption of lightweight concrete and belongs to the technical field of bridge engineering. The pavement is capable of increasing transverse stiffness of an existing hollow hinged plate girder bridge. A lightweight concrete reinforcing layer of 15-20 centimeters is used to replace the original concrete bridge floor payment of the hollow hinged plate girder bridge. Constructional steel bars are configured inside the reinforcing layer and the constructional steel bars are arranged on an upper layer and a lower layer to form reinforcing meshes to increase rigidity of the reinforcing layer; wherein, reinforcing steel bars with diameters of phi16 are adopted in transverse direction of the bridge, distributing steel bars with diameters of phi10 are adopted in longitudinal direction of the bridge, and all the steel bars are arranged in full length and with a interval of 10-15 centimeters. On the premise that dead load action is not increased, the new paved lightweight concrete layer is relied on to effectively increase the transverse stiffness of the existing hollow hinged plate girder bridge and improve load-carrying performance and durability of the bridge.
Description
Technical field
The invention belongs to technical field of bridge engineering, relate 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.
Summary of the invention
The invention 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.
Technical scheme of the present invention 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 invention 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
The specific embodiment of the present invention 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 the concrete bridge deck pavement replaced with the light weight concrete construction strengthening course that thickness is 15 ~ 20cm in hollow hinged slab bridge; 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 |
|---|---|---|---|
| CN201510034135.4A CN104612049A (en) | 2015-01-21 | 2015-01-21 | Bridge floor reinforcing pavement layer by adoption of lightweight concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510034135.4A CN104612049A (en) | 2015-01-21 | 2015-01-21 | Bridge floor reinforcing pavement layer by adoption of lightweight concrete |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104612049A true CN104612049A (en) | 2015-05-13 |
Family
ID=53146678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510034135.4A Pending CN104612049A (en) | 2015-01-21 | 2015-01-21 | Bridge floor reinforcing pavement layer by adoption of lightweight concrete |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104612049A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107059581A (en) * | 2017-05-05 | 2017-08-18 | 乌海市公路工程有限公司 | A kind of maintenance method of Hollow Slab Beam Bridge bridge floor |
| CN113073538A (en) * | 2021-03-17 | 2021-07-06 | 安徽省交通规划设计研究总院股份有限公司 | High pile plate-soil combined road |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3587964A (en) * | 1969-04-18 | 1971-06-28 | Meadows W R Inc | Protective course for bridge deck |
| CN2752316Y (en) * | 2004-12-21 | 2006-01-18 | 武汉理工大学 | Assembly of steel bridge surface |
| GB2443255A (en) * | 2006-10-25 | 2008-04-30 | Calvin Humphries | Articles formed from aggregate in epoxy resin |
| CN201809723U (en) * | 2010-10-19 | 2011-04-27 | 长安大学 | Bridge deck formed by combing steel plates and light-weight concrete blocks |
| CN102561181A (en) * | 2012-01-10 | 2012-07-11 | 东南大学 | Composite steel-fiber reinforced cement-base bridge deck |
| CN203755106U (en) * | 2014-03-08 | 2014-08-06 | 中交第三公路工程局有限公司 | Pavement structure of cross-sea bridge cement concrete bridge deck |
| CN204475177U (en) * | 2015-01-21 | 2015-07-15 | 大连理工大学 | A kind of bridge floor reinforcement pave-load layer adopting light weight concrete construction |
-
2015
- 2015-01-21 CN CN201510034135.4A patent/CN104612049A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3587964A (en) * | 1969-04-18 | 1971-06-28 | Meadows W R Inc | Protective course for bridge deck |
| CN2752316Y (en) * | 2004-12-21 | 2006-01-18 | 武汉理工大学 | Assembly of steel bridge surface |
| GB2443255A (en) * | 2006-10-25 | 2008-04-30 | Calvin Humphries | Articles formed from aggregate in epoxy resin |
| CN201809723U (en) * | 2010-10-19 | 2011-04-27 | 长安大学 | Bridge deck formed by combing steel plates and light-weight concrete blocks |
| CN102561181A (en) * | 2012-01-10 | 2012-07-11 | 东南大学 | Composite steel-fiber reinforced cement-base bridge deck |
| CN203755106U (en) * | 2014-03-08 | 2014-08-06 | 中交第三公路工程局有限公司 | Pavement structure of cross-sea bridge cement concrete bridge deck |
| CN204475177U (en) * | 2015-01-21 | 2015-07-15 | 大连理工大学 | A kind of bridge floor reinforcement pave-load layer adopting light weight concrete construction |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107059581A (en) * | 2017-05-05 | 2017-08-18 | 乌海市公路工程有限公司 | A kind of maintenance method of Hollow Slab Beam Bridge bridge floor |
| CN113073538A (en) * | 2021-03-17 | 2021-07-06 | 安徽省交通规划设计研究总院股份有限公司 | High pile plate-soil combined road |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104233942B (en) | Method for enhancing overall stress on assembled type heterotropic pre-stress hollow slab beam bridge | |
| CN204185755U (en) | A kind of Wavelike steel webplate post-stressed concrete T beam | |
| CN104988823A (en) | Cement concrete pavement structure provided with continuous steel bars | |
| CN101570960B (en) | Fastening method of T-shaped beam bridge | |
| CN101591882B (en) | Stress absorption band construction method | |
| CN102839601A (en) | Fixed connection structure for steel pier column and cushion cap of portal rigid frame overbridge and construction method of fixed connection structure | |
| CN104294748A (en) | Joint section structure for hybrid beam cable-stayed bridge and construction method thereof | |
| CN203741730U (en) | T-shaped bridge reinforcing structure | |
| CN104260199B (en) | A kind of Wavelike steel webplate prestressed concrete I-beam prefabricating and constructing | |
| CN102086629B (en) | Longitudinally slidable steel-concrete anti-lifting connecting member and construction method thereof | |
| CN104389261A (en) | Prefabricated ultra-high-performance concrete pi-shaped beam unit, bridge structure and construction method thereof | |
| CN106012791B (en) | Three across the antinode steel concretes of work beam shear wave three combine T-shaped continuous beam | |
| CN103233421A (en) | Pre-stressed concrete variable cross-section box girder bridge and construction method thereof | |
| CN107237232B (en) | high-durability cement concrete pavement expansion joint structure and construction method thereof | |
| CN104612049A (en) | Bridge floor reinforcing pavement layer by adoption of lightweight concrete | |
| CN204080643U (en) | The prefabricated constructing structure of a kind of Wavelike steel webplate prestressed concrete i beam | |
| CN201686953U (en) | Novel wall fence used for road | |
| CN105507109A (en) | Damaged concrete pavement panel reinforcing structure and method | |
| CN203755106U (en) | Pavement structure of cross-sea bridge cement concrete bridge deck | |
| CN205954478U (en) | Assembled concrete barrier and adopt its bridge | |
| CN204475177U (en) | A kind of bridge floor reinforcement pave-load layer adopting light weight concrete construction | |
| CN103556564B (en) | A kind of assembled slab bridge based on the connection of steel diaphragm plate and construction method thereof | |
| CN205856999U (en) | Three combine T-shaped continuous beam across antinode work beam shear wave three steel concrete | |
| CN204212043U (en) | Prefabricated ultra-high performance concrete π ellbeam unit | |
| CN204139061U (en) | Based on the steel-ultra-high performance concrete combined bridge deck plated construction of steel channel connector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150513 |