CN202626834U - Bridge reinforced concrete guardrail of prefabricated-and-cast-in-situ process construction - Google Patents
Bridge reinforced concrete guardrail of prefabricated-and-cast-in-situ process construction Download PDFInfo
- Publication number
- CN202626834U CN202626834U CN 201120553700 CN201120553700U CN202626834U CN 202626834 U CN202626834 U CN 202626834U CN 201120553700 CN201120553700 CN 201120553700 CN 201120553700 U CN201120553700 U CN 201120553700U CN 202626834 U CN202626834 U CN 202626834U
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- bridge
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Abstract
The utility model discloses a bridge reinforced concrete guardrail of prefabricated-and-cast-in-situ process construction, which is composed of a prefabricated part 1, a cast-in-situ part 2 and reserved steel bars 3 of a bridge flange plate. The prefabricated part 1 is provided with pouring holes for concreting of the cast-in-situ part and side pre-embedded members 5 and a bottom pre-embedded member 6. The cast-in-situ part 2 is provided with steel bars 7 which are colligated or welded with the side pre-embedded members 5 and the bottom pre-embedded member 6 of the prefabricated part 1 and the reserved steel bars 3 of the bridge flange plate. The cast-in-situ part 2 is poured with expansion concrete to prevent crack generation between the cast-in-situ part and the prefabricated part due to the concrete contraction. The prefabricated part 1 is provided with a through hole 8 and a groove 9. The visual effect and the quality of the prefabricated part are ensured through the fine production in factories, and each prefabricated part and the bridge flange plate are connected through the on-site pouring of the cast-in-situ part, so that the overall protection effect of the guardrail is guaranteed, on-site construction is simplified, on-site construction speed is accelerated, and construction period is shortened.
Description
Technical field
The utility model relates to a kind of reinforced concrete fence, is specifically related to a kind of prefabricated bridge reinforcement concrete guardrail that adds the cast in place process construction.
Background technology
The bridge reinforcement concrete guardrail adopts on-the-spot complete cast-in-place mode to construct more at present, but complete cast-in-place form of construction work is brought problems, and, construction condition difference big, long in time limit like difficulty of construction causes difficult quality control etc.This utility model adopts the prefabricated cast-in-place form of construction work that adds; Prefabricated section landscape effect and quality have been guaranteed through prefabricated section of factory's delicate execution; Guaranteed the integral protection effect of guardrail through each prefabricated section of cast-in-place section connection of cast-in-site and bridge flange plate; Can simplify site operation, accelerate site operation speed, the reduction of erection time, guarantee construction quality.
The utility model content
The utility model is a kind of prefabricated bridge reinforcement concrete guardrail that adds the cast in place process construction; This novel guardrail is problem research and development such as the bridge concrete guardrail site operation difficulty of constructing to complete cast-in-place mode is big, long in time limit, difficult quality guarantee; Can simplify site operation, accelerate site operation speed; Reduction of erection time, guarantee construction quality.
The prefabricated bridge reinforcement concrete guardrail that adds the cast in place process construction of the utility model; It is characterized in that forming by prefabricated section, cast-in-place section and bridge flange plate reserved steel bar; Prefabricated section is provided with through hole and groove and the plug hole that strengthens concrete guardrail permeability and landscape effect; Prefabricated section side and bottom are respectively equipped with side preburied component and bottom preburied component; Between contiguous prefabricated section the side preburied component through being located at the longitudinal reinforcement colligation in cast-in-place section or being welded to connect fixing; Through being located at the transverse reinforcement colligation in cast-in-place section or being welded to connect fixingly, expansive concrete injects cast-in-place section through the upper surface of plug hole and cast-in-place section between bottom preburied component and the bridge flange plate reserved steel bar, and cast-in-place section is connected to form integral body with each prefabricated section.
The cross section of said plug hole is an arbitrary shape.
Said side preburied component is straight concrete steel muscle, ring-type reinforcing bar, or shaped steel.
Said bottom preburied component is straight concrete steel muscle, ring-type reinforcing bar, or shaped steel.
Said prefabricated section is provided with through hole and groove.
The guardrail that the utility model provided is identical with complete cast-in-place guardrail through its protective capacities of real vehicle collision test proof.
Description of drawings
Fig. 1 adds the structural representation in the prefabricated section front of bridge reinforcement concrete guardrail of cast in place process construction for the utility model is prefabricated.
Fig. 2 adds the structural representation in the cast-in-place section front of bridge reinforcement concrete guardrail of cast in place process construction for the utility model is prefabricated.
Fig. 3 adds the structural representation of the bridge reinforcement concrete guardrail of cast in place process construction for the utility model is prefabricated.
Fig. 4 is the lateral view of Fig. 3.
The specific embodiment
Combine accompanying drawing that the utility model is described further at present.
Referring to Fig. 1; At first at enough prefabricated section 1 of prefabricated component factory construction quantity; Prefabricated section 1 size in the work progress; The size that comprises plug hole 4, side preburied component 5, bottom preburied component 6, through hole 8 and groove 9 on prefabricated section 1 should guarantee accurately, and the side preburied component 5 on especially prefabricated section 1 and the pre-buried position of bottom preburied component 6 must be accurately.With sufficient amount prefabricated section 1 is transported to the job site then, should avoid in the transportation colliding with and damage prefabricated section 1.After being transported to the scene for prefabricated section 1, should be according to the accurate hoisted in position in position of measuring unwrapping wire, for avoiding prefabricated section 1 lodging after in place, can be with prefabricated section 1 bottom preburied component 6 and 3 welding or the colligations of bridge flange plate reserved steel bar.After prefabricated section 1 fixation, begin to construct cast-in-place section 2.
Referring to Fig. 2; During cast-in-place section 2 construction; Longitudinal reinforcement 7 and transverse reinforcement 7 ' at first are set in cast-in-place section; Interconnect firmly through the side preburied component 5 of longitudinal reinforcement 7, prefabricated section 1 bottom preburied component 6 is connected firmly with bridge flange plate reserved steel bar 3 through transverse reinforcement 7 ' with contiguous prefabricated section 1.Before cast-in-place section 2 concreting, can contiguous prefabricated section side preburied component 5 be welded to each other or colligation or do not connect, and can be with bottom preburied component 6 with 3 welding of bridge flange plate reserved steel bar or colligation or be not connected.For avoid concrete shrinkage cause cast-in-place section with prefabricated intersegmental generation crack, influence cast-in-place section with prefabricated section bonding strength, cast-in-place section palpus built with expansive concrete, the match ratio of used expansive concrete is: P.O 42.5 cement 185kg/m
3, flyash 80kg/m
3, breeze 80kg/m
3, high performance expansion admixture 40kg/m
3, water 155kg/m
3, sand 745kg/m
3, stone 1115kg/m
3, water reducing agent 3.27kg/m
3
Referring to Fig. 3, Fig. 4, be connected to form an integral body through cast-in-place section 2 with each prefabricated section 1, and realization is connected with the reliable of bridge flange plate, thereby forms whole guard bar structure, it can be reinforced or F type or single domatic or the New Jersey is domatic that guardrail is met the face of hitting.
Claims (5)
1. prefabricated bridge reinforcement concrete guardrail that adds cast in place process construction; It is characterized in that forming by prefabricated section (1) and cast-in-place section (2) and bridge flange plate reserved steel bar (3); Prefabricated section (1) is provided with plug hole (4); The side of prefabricated section (1) and bottom are respectively equipped with side preburied component (5) and bottom preburied component (6); Between the side preburied component (5) of contiguous prefabricated section (1) through be located at cast-in-place section in (2) longitudinal reinforcement (7) colligation or be welded to connect fixing; Between bottom preburied component (6) and the bridge flange plate reserved steel bar (3) through be located at cast-in-place section in (2) transverse reinforcement (7 ') colligation or be welded to connect fixingly, expansive concrete is through cast-in-place section (2) of plug hole (4) injection, cast-in-place section (2) are connected to form integral body with each prefabricated section (1).
2. according to the said prefabricated bridge reinforcement concrete guardrail that adds the cast in place process construction of claim 1, the cross section that it is characterized in that plug hole (4) is an arbitrary shape.
3. according to the said prefabricated bridge reinforcement concrete guardrail that adds the cast in place process construction of claim 1, it is characterized in that side preburied component (5) is straight concrete steel muscle, ring-type reinforcing bar, or shaped steel.
4. according to the said prefabricated bridge reinforcement concrete guardrail that adds the cast in place process construction of claim 1, it is characterized in that bottom preburied component (6) is straight concrete steel muscle, ring-type reinforcing bar, or shaped steel.
5. according to the said prefabricated bridge reinforcement concrete guardrail that adds the cast in place process construction of claim 1, it is characterized in that prefabricated section (1) is provided with through hole (8) and groove (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120553700 CN202626834U (en) | 2011-12-27 | 2011-12-27 | Bridge reinforced concrete guardrail of prefabricated-and-cast-in-situ process construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120553700 CN202626834U (en) | 2011-12-27 | 2011-12-27 | Bridge reinforced concrete guardrail of prefabricated-and-cast-in-situ process construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202626834U true CN202626834U (en) | 2012-12-26 |
Family
ID=47380045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120553700 Expired - Lifetime CN202626834U (en) | 2011-12-27 | 2011-12-27 | Bridge reinforced concrete guardrail of prefabricated-and-cast-in-situ process construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202626834U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103741590A (en) * | 2014-01-20 | 2014-04-23 | 北京中路安交通科技有限公司 | Bridge protection system |
-
2011
- 2011-12-27 CN CN 201120553700 patent/CN202626834U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103741590A (en) * | 2014-01-20 | 2014-04-23 | 北京中路安交通科技有限公司 | Bridge protection system |
| CN103741590B (en) * | 2014-01-20 | 2016-01-20 | 北京中路安交通科技有限公司 | Bridge protection system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121226 |