CN204530500U - A kind of closure section template system not removing external mold - Google Patents
A kind of closure section template system not removing external mold Download PDFInfo
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- CN204530500U CN204530500U CN201520189706.7U CN201520189706U CN204530500U CN 204530500 U CN204530500 U CN 204530500U CN 201520189706 U CN201520189706 U CN 201520189706U CN 204530500 U CN204530500 U CN 204530500U
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Abstract
The utility model discloses a kind of closure section template system not removing external mold, comprise soffit formwork, outboard template and inner side template, the bridge cantilever section termination of having built is embedded with built-in fitting, soffit formwork and outboard template are fixed on built-in fitting by outboard template skeleton, and inner side template is supported in inside the web of bridge cantilever section termination with on base plate by internal mold; Soffit formwork, outboard template and outboard template skeleton are within the design profile line of bridge.Soffit formwork, outboard template and outboard template skeleton etc. become a part for bridge permanent structure after having constructed.Pull bar is not established between inner side template and outboard template.Closure section can be realized under the condition that the existing building safe distances such as the high-voltage line planning to build bridge and cross under it are limited to construct.
Description
Technical field
The utility model relates to a kind of bridge construction closure section template system, particularly relates to a kind of closure section template system not removing external mold.
Background technology
In technical field of civil engineering, especially in Bridge Construction technical field, prestressed concrete continuous beam and continuous rigid frame bridge cantilever pouring construction method, construction by swing or cast-in-place construction method, cable-stayed bridge main-beam cantilever pouring construction method or construction by swing, in the multiple construction methods such as prestressed concrete Construction of Swivel of Arch Bridge method, all there is the problem that closure section needs cast-in-place construction.
The common way of closure section cast-in-place construction arranges template, skeleton and support system beyond bridge design outline line; template and skeleton are as common cast-in-situ construction method; template can adopt punching block or bamboo plywood; skeleton can adopt steel frame or wooden skeleton; suspension system then arranges preformed hole on the beam body of having built, and suspends in midair with suspension rod.
Because national expressway network, common railway net and High-speed Railway Network construction are constantly encrypted, country's water conservancy and hydropower facility and national grid are constantly built, inevitably existing building is crossed over when newly-built circuit, due to the restriction of newly-built line elevation, the safe distance of the existing buildings such as New Buildings lower edge Distance High Voltage Electricity Transfer is caused to be restricted, if carry out the closure section of construction bridges according to common construction method, this headroom can not meet the demands, and traditional construction method is infeasible.Under the condition of above-mentioned space length deficiency, there is no feasible construction method at present.
Utility model content
The purpose of this utility model is to provide a kind of closure section template system not removing external mold that can adapt to the closure section construction planned to build between the existing building such as bridge and its lower high-voltage line crossed under limited space condition.
The purpose of this utility model is achieved through the following technical solutions:
The closure section template system not removing external mold of the present utility model, its preferably detailed description of the invention be:
Comprise soffit formwork, outboard template and inner side template, the bridge cantilever section termination of having built is embedded with built-in fitting, described soffit formwork and outboard template are fixed on described built-in fitting by outboard template skeleton, and described inner side template passes through internal mold supported inside the web of described bridge cantilever section termination and on base plate;
Described soffit formwork, outboard template and outboard template skeleton are within the design profile line of bridge.
The technical scheme provided as can be seen from above-mentioned the utility model, the closure section template system of what the utility model embodiment provided do not remove external mold, because soffit formwork and outboard template are fixed on built-in fitting by outboard template skeleton, inner side template passes through internal mold supported inside the web of bridge cantilever section termination and on base plate; Soffit formwork, outboard template and outboard template skeleton are within the design profile line of bridge.The soffit formwork of closure section and outboard template and skeleton thereof do not take the space beyond bridge body, can adapt to plan to build the closure section construction between the existing building such as bridge and its lower high-voltage line crossed under limited space condition.
Accompanying drawing explanation
The section structure schematic diagram not removing the closure section template system of external mold that Fig. 1 provides for the utility model embodiment.
Fig. 2 is that the B-B of Fig. 1 is to sectional structure schematic diagram.
Fig. 3 is that the A-A of Fig. 1 is to sectional structure schematic diagram.
In figure: 1-soffit formwork, 2-outboard template, 3-inner side template, 4-outboard template skeleton, 5-built-in fitting, 6-internal mold support.
Detailed description of the invention
To be described in further detail the utility model embodiment below.
The closure section template system not removing external mold of the present utility model, its preferably detailed description of the invention be:
Comprise soffit formwork, outboard template and inner side template, the bridge cantilever section termination of having built is embedded with built-in fitting, described soffit formwork and outboard template are fixed on described built-in fitting by outboard template skeleton, and described inner side template passes through internal mold supported inside the web of described bridge cantilever section termination and on base plate;
Described soffit formwork, outboard template and outboard template skeleton are within the design profile line of bridge.
Described soffit formwork, outboard template and outboard template skeleton etc. become a part for bridge permanent structure after having constructed.
Pull bar is not established between described inner side template and outboard template.
The closure section template system not removing external mold of the present utility model, can realize closure section and construct under the condition that the existing building safe distances such as the high-voltage line planning to build bridge and cross under it are limited;
Built-in fitting can adopt the section bar such as bar reinforcement or angle steel to be embedded in advance in the termination of the cantilever segment before closure, exposes concrete cross section and is necessarily longer than, for fixing described outboard template skeleton;
Soffit formwork and described outboard template are steel form, and the outer margin contour of steel form is closure section design outer contour.Described outboard template skeleton is arranged on the inside of described soffit formwork and described outboard template, and described soffit formwork and described outboard template are welded on described outboard template skeleton.The two ends of described outboard template skeleton are fixedly welded on described built-in fitting.The two ends of described soffit formwork and described outboard template are welded on the plain bars that cantilever segment exposes;
Namely described outboard template skeleton, described soffit formwork, described outboard template become the ingredient of beam body after concreting completes, and play booster action to beam body, no longer remove.For ensureing that described outboard template skeleton, described soffit formwork, described outboard template and concrete binding are good, need to weld shear connector thereon, shear connector is arranged according to usual way.
In order to closure section appearance color after ensureing into bridge is consistent with concrete true qualities, the coating of the outside coating concrete color of soffit formwork and outboard template, also serves the effect of steel plate corrosion-resistant simultaneously.
Described inner side template can be Overall Steel Formwork, combined steel formwork or bamboo glue pattern plate etc., described inner side template arranges skeleton in case indoor, skeleton is supported on horizontal direction by stiffness and props up to peak at and build in cantilever segment web concrete, realize self-balancing, at vertical supporting on the base plate of building cantilever segment.
Specific embodiment:
Concrete construction method is: during (1) in the end cantilever segment assembling reinforcement, together buried underground by described built-in fitting.(2) install described outboard template skeleton, frame welding is on built-in fitting.(3) install described soffit formwork and described outboard template, be welded on described outboard template skeleton, two ends are welded on the plain bars that cantilever segment stretches out.(4) install described inner side template and described internal mold to support, described internal mold is supported on horizontal direction and is supported on the cantilever segment web inside wall of having built, and vertical supporting is inside the cantilever segment base plate of having built on concrete; (5) first build closure section underplate concrete, then build closure section web concrete, finally build closure section concrete roof; (6) reach after design strength until concrete, stretch-draw closure section prestressing force; (7) remove described medial support, remove described inner side template.Closure section construction is complete.
The beneficial effect of the utility model and utility model can be summarized as four aspects:
(1) soffit formwork of closure section and outboard template and skeleton thereof do not take the space beyond bridge body, can adapt to plan to build the closure section construction between the existing building such as bridge and its lower high-voltage line crossed under limited space condition;
(2) soffit formwork, outboard template and support system thereof do not need to remove;
(3) soffit formwork, outboard template and support system thereof are after closure section construction completes, and become a part for permanent structure, and strengthen permanent structure;
(4) internal mold supported is inner in the termination of the cantilever segment of having built, and realizes therein balance.
The above; be only the utility model preferably detailed description of the invention; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the change that can expect easily or replacement, all should be encompassed within protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claims.
Claims (3)
1. do not remove the closure section template system of external mold for one kind, it is characterized in that, comprise soffit formwork (1), outboard template (2) and inner side template (3), the bridge cantilever section termination of having built is embedded with built-in fitting (5), described soffit formwork (1) and outboard template (2) are fixed on described built-in fitting (5) by outboard template skeleton (4), and described inner side template (3) is supported in inside the web of described bridge cantilever section termination and on base plate by internal mold support (6);
Described soffit formwork (1), outboard template (2) and outboard template skeleton (4) are within the design profile line of bridge.
2. the closure section template system not removing external mold according to claim 1, it is characterized in that, described soffit formwork (1), outboard template (2) and outboard template skeleton (4) etc. become a part for bridge permanent structure after having constructed.
3. the closure section template system not removing external mold according to claim 1 and 2, is characterized in that, does not establish pull bar between described inner side template (3) and outboard template (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520189706.7U CN204530500U (en) | 2015-03-31 | 2015-03-31 | A kind of closure section template system not removing external mold |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520189706.7U CN204530500U (en) | 2015-03-31 | 2015-03-31 | A kind of closure section template system not removing external mold |
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| CN204530500U true CN204530500U (en) | 2015-08-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104746434A (en) * | 2015-03-31 | 2015-07-01 | 中铁第五勘察设计院集团有限公司 | Closure segment formwork system without dismantling outer formwork |
-
2015
- 2015-03-31 CN CN201520189706.7U patent/CN204530500U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104746434A (en) * | 2015-03-31 | 2015-07-01 | 中铁第五勘察设计院集团有限公司 | Closure segment formwork system without dismantling outer formwork |
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