CN203420261U - Steel formwork for dam stilling basin prefabricated gallery top arch - Google Patents
Steel formwork for dam stilling basin prefabricated gallery top arch Download PDFInfo
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- CN203420261U CN203420261U CN201320211770.1U CN201320211770U CN203420261U CN 203420261 U CN203420261 U CN 203420261U CN 201320211770 U CN201320211770 U CN 201320211770U CN 203420261 U CN203420261 U CN 203420261U
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- steel form
- internal mold
- stilling basin
- steel
- external mold
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Abstract
A steel formwork for a dam stilling basin prefabricated gallery top arch is composed of an outer formwork, an inner formwork and two head plates, wherein the outer formwork and the inner formwork are connected and fixed to the head plates through bolts. Through testing of practice, the bearing capacity, the strength resistance, the rigidity and the overall stability of a prefabricated formwork meets the design requirements. The steel formwork has the advantages of improving the work efficiency, shortening the construction period, reducing mutual interference of cross construction and the like, and is suitable for prefabrication of the dam stilling basin prefabricated gallery top arch.
Description
Technical field
The utility model relates to the Dam Stilling Basin roof arch of gallery prefabricating technique field in Hydropower Station Construction, is specifically related to a kind of Dam Stilling Basin Precast Gallery crown steel form.
Background technology
At water conservancy and hydropower concrete construction building field, the general mode of setting up full hall pin hand bracing frame formwork erection that adopts of job practices that the concreting of Dam Stilling Basin roof arch of gallery is traditional, carries out cast-in-place concrete.This formwork erection mode has following defect: the one, and time-consuming; The 2nd, high material consumption, be unfavorable for construction environment; The 3rd, because the crown template of gallery is bearing form, himself globality is poor, and in concreting process, template compressive deformation is larger, is difficult to guarantee concrete quality; The 4th, because crown frame bottom will arrange a large amount of supporting rods, be unfavorable for the traffic in gallery, brought larger interference to the crossed construction between bid section.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of prefabricated crown steel form of Dam Stilling Basin gallery device simple in structure, easy to make, overcome that mould bases is easily out of shape, the input of circulation material and accounting for press large, the shortcoming that difficulty of construction is high.The whole parts of the utility model adopt steel to make, and install and remove convenient and swiftly, can repeatedly have enough to meet the need use, have reduced cost, less to the traffic impact in gallery, have reduced the phase mutual interference between crossed construction bid section.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of Dam Stilling Basin Precast Gallery crown steel form, by exterior sheathing inner formword and two head plates, formed, and described exterior sheathing and inner formword are connected and fixed by bolt and head plate.
Described exterior sheathing by external mold steel form and external mold steel arch frame by being made of welded connection.
Described external mold steel form is welded by external mold steel plate, the first external mold arch ring and external mold junction plate; External mold bow member by the second external mold arch ring with laterally connecting rod and support bar by being made of welded connection.
Described inner formword is made of welded connection by internal mold steel form and internal mold steel arch frame.
Described internal mold steel form is welded by internal mold steel plate, internal mold arch ring and internal mold junction plate; Internal mold steel arch frame by internal mold support bar and internal mold connecting rod by being made of welded connection.
The utlity model has following beneficial effect: the Dam Stilling Basin Precast Gallery crown steel form that the utility model provides, exterior sheathing and the inner formword of every Pin steel form device are connected and fixed by bolt and head plate, have effectively guaranteed globality and the stability of steel steel form device.Only need provide an about 500m of area
2the place of left and right, just can carry out the making of steel form device at the scene, and builds prefabricated crown in batches, builds at every turn and take four Pin as one batch, has improved work efficiency.The utility model detects through practice, and the supporting capacity of prefab form, anti-intensity, rigidity and monolithic stability all meet design requirement.The utlity model has raising work efficiency, the reduction of erection time, reduce the input of circulation material and account for pressure; Reduce the advantages such as phase mutual interference of crossed construction, and improve workmanship, guarantee construction safety, improve working environment.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Fig. 1 is cast outer mold structure schematic diagram of the present utility model.
Fig. 2 is internal model structure schematic diagram of the present utility model.
Fig. 3 is the structural representation of the utility model head plate.
Fig. 4 is the A-A sectional view of Fig. 1.
Fig. 5 is that Fig. 2 is B-B sectional view.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Structure of the present utility model as Figure 1-5, a kind of Dam Stilling Basin Precast Gallery crown steel form, by exterior sheathing 7 inner formwords 8 and two head plates 16, formed, described exterior sheathing 7 and inner formword 8 are connected and fixed by bolt and head plate 16, form the crown steel form that a Pin is complete, head plate 16 is two.
Described exterior sheathing 7 by external mold steel form 1 and external mold steel arch frame 2 by being made of welded connection.
Described external mold steel form 1 is welded by external mold steel plate 3, the first external mold arch ring 5 and external mold junction plate 4; External mold bow member 2 is by the second external mold arch ring 5 ＇ with laterally connecting rod 6 and support bar 6 ＇ are by being made of welded connection, and every template is arranged three roads.
Described inner formword 8 is made of welded connection by internal mold steel form 9 and internal mold steel arch frame 13.
Described internal mold steel form 9 is welded by internal mold steel plate 10, internal mold arch ring 12 and internal mold junction plate 11; Internal mold steel arch frame 13 is by internal mold support bar 14 and internal mold connecting rod 15 by being made of welded connection, and every template is arranged three roads.
Physical dimension size of the present utility model can be determined according to the real size of roof arch of gallery internal diameter.
Work progress of the present utility model is as follows: the internal-and external diameter of 1) determining prefabricated crown steel form device according to the real size of absorption basin roof arch of gallery; 2) provide prefabricated place; 3) carry out the making of steel form device; 4) prefab form concreting; 5) form removal, maintenance.
By above-mentioned steps, realize the construction of Dam Stilling Basin roof arch of gallery precast concrete form.
Claims (5)
1. a Dam Stilling Basin Precast Gallery crown steel form, is characterized in that: exterior sheathing (7) inner formword (8) and two head plates (16), consist of, described exterior sheathing (7) and inner formword (8) are connected and fixed by bolt and head plate (16).
2. a kind of Dam Stilling Basin Precast Gallery crown steel form according to claim 1, is characterized in that: described exterior sheathing (7) by external mold steel form (1) and external mold steel arch frame (2) by being made of welded connection.
3. a kind of Dam Stilling Basin Precast Gallery crown steel form according to claim 2, is characterized in that: described external mold steel form (1) is welded by external mold steel plate (3), the first external mold arch ring (5) and external mold junction plate (4); External mold bow member (2) by the second external mold arch ring (5 ＇) with laterally connecting rod (6) and support bar (6 ＇) by being made of welded connection.
4. a kind of Dam Stilling Basin Precast Gallery crown steel form according to claim 1, is characterized in that: described inner formword (8) is made of welded connection by internal mold steel form (9) and internal mold steel arch frame (13).
5. a kind of Dam Stilling Basin Precast Gallery crown steel form according to claim 4, is characterized in that: described internal mold steel form (9) is welded by internal mold steel plate (10), internal mold arch ring (12) and internal mold junction plate (11); Internal mold steel arch frame (13) by internal mold support bar (14) and internal mold connecting rod (15) by being made of welded connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320211770.1U CN203420261U (en) | 2013-04-24 | 2013-04-24 | Steel formwork for dam stilling basin prefabricated gallery top arch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320211770.1U CN203420261U (en) | 2013-04-24 | 2013-04-24 | Steel formwork for dam stilling basin prefabricated gallery top arch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203420261U true CN203420261U (en) | 2014-02-05 |
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ID=50019361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320211770.1U Expired - Fee Related CN203420261U (en) | 2013-04-24 | 2013-04-24 | Steel formwork for dam stilling basin prefabricated gallery top arch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203420261U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103243691A (en) * | 2013-04-24 | 2013-08-14 | 葛洲坝集团第五工程有限公司 | Prefabricated steel formwork for gallery top arch of dam absorption basin |
-
2013
- 2013-04-24 CN CN201320211770.1U patent/CN203420261U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103243691A (en) * | 2013-04-24 | 2013-08-14 | 葛洲坝集团第五工程有限公司 | Prefabricated steel formwork for gallery top arch of dam absorption basin |
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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: 20140205 Termination date: 20190424 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |