CN203285055U - System used for fastening formwork at joint of new concrete and old concrete on structural side wall - Google Patents
System used for fastening formwork at joint of new concrete and old concrete on structural side wall Download PDFInfo
- Publication number
- CN203285055U CN203285055U CN2013201254400U CN201320125440U CN203285055U CN 203285055 U CN203285055 U CN 203285055U CN 2013201254400 U CN2013201254400 U CN 2013201254400U CN 201320125440 U CN201320125440 U CN 201320125440U CN 203285055 U CN203285055 U CN 203285055U
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- side wall
- fastener
- joint
- concrete
- formwork
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Abstract
The utility model aims to provide a system used for fastening a formwork at the joint of new concrete and old concrete on a structural side wall so as to solve the problem of unqualified pouring quality caused by a construction joint. According to the system used for fastening the formwork at the joint of the new concrete and the old concrete on the structural side wall, a side wall formwork on a side edge, which a side wall is to be poured on, of a bottom plate is fastened; the system comprises a supporting assembly which is formed by steel pipes and used for supporting the side wall formwork. The system is characterized by further comprising a fastening device. The fastening device comprises bolts, two pipes, fasteners and clamp nuts, wherein the bolts are pre-buried in the side wall joint of the bottom plate and provided with hooks; the two pipes are transversely arranged and pressed against a keel of the side wall formwork through the multiple fasteners; the bolts correspond to the fasteners respectively, penetrate through the two pipes and penetrate through bolt holes of the fasteners at the same time; the clamp nuts are matched with the bolts so that the side wall formwork and the side wall joint of the bottom plate can be matched in a fastened mode through the fasteners, the steel pipes and the keel.
Description
Technical field
The utility model relates to the construction of underground structure construction system.
Background technology
During the construction of underground structure construction, as shown in Figure 1, while pouring into a mould side wall, utilize horizontal steel tube 13 according to certain spacing horizontal arrangement, be aided with oblique steel pipe 17 and interior outer keel 15,14 fore-set side wall templates 16, to reach fastening purpose, but there is constuction joint 121 in base plate 11 with the binding site of side wall 12, regularly run into base plate and the problem such as side wall binding site concrete pouring quality does not pass a test, and waterproof quality is bad.
The utility model content
It is a kind of for the fastening system of structure side wall new-old concrete junction template that the purpose of this utility model is to provide, the problem that the pouring quality that causes with the solution constuction joint does not pass a test.
be used for the fastening system of structure side wall new-old concrete junction template for what realize described purpose, the side plan of base plate being built the side wall template of side wall carries out fastening, comprise the supporting component that the offside wall form that consists of steel pipe supports, it is characterized in that, also comprise fastener, this fastener comprises the bolt of buckle in the side wall junction surface that is embedded in base plate, two tubing, fastener and clamp nut, these two tubing are horizontal and by these a plurality of fasteners, be pressed on the keel of side wall template, corresponding each this fastener, this bolt passes the bolt hole that also passes this fastener simultaneously from these two steel pipes, clamp nut coordinates with this bolt, with by means of this fastener, steel pipe, keel make the side wall junction surface secure fit of side wall template and base plate.
Described system, wherein, described fastener contacts described steel pipe by arc-shaped depression portion.
By fastener, the side wall junction surface of side wall template and base plate is tightened together, therefore not there will be the side wall junction surface of base plate and the problem that there is constuction joint in the side wall junction, therefore improved pouring quality.
Description of drawings
Fig. 1 is existing schematic diagram for the fastening system of structure side wall new-old concrete junction template.
Fig. 2 is used for the schematic diagram of the fastening system of structure side wall new-old concrete junction template in the utility model embodiment.
Fig. 3 is the schematic diagram of fastener in the utility model embodiment.
Fig. 4 is the partial enlarged view at A place in Fig. 2, has shown that fastener is with side wall template fastening schematic diagram in addition.
The specific embodiment
As shown in Figure 2; base plate 21 comprises plain concrete cushion layer, pea gravel concreten topping and concrete floor from bottom to top successively; at first before building the concrete of base plate; be embedded in advance in the cage of reinforcement of joint portion of side wall combination of base plate 21 with the bolt 281(of formwork fastener as shown in Figure 3, Figure 4);, for the bonding strength that obtains designing, preferably guarantee the buried depth of 25d (d is the diameter of bolt).
Utilize horizontal steel tube 23 according to certain spacing horizontal arrangement, be aided with oblique steel pipe 27 and interior outer keel 25,24 fore-set side wall templates 26, structure side wall new-old concrete junction is being indicated by Reference numeral 221.
As shown in Figure 3, fastener comprises bolt 281, fastener 282, clamp nut 283 and two tubing 280 of buckle, and as shown in Figure 4, two tubing 280 are level, on horizontal keelson in template 26 25, and by a plurality of fasteners 282, is compressed.
After the concreting of base plate 21 is complete, first with side wall template 26 and the vertical lumps of wood of keelson 25() passed by pre-embedded bolt 281, again fastener 282 is close to keelson 25, screw finally the clamp nut 283 on bolt 281, guarantee template 26 and built combining closely between the part side wall concrete.
The total length of bolt 281=embedded concrete structure wall partial-length+imbed template and keelson partial-length+pass fastener partial-length+exposed parts (10cm)
The end of bolt 281 hooks up, and hooks the structure reinforcing bars skeleton at the side wall junction surface of base plate 21.
Side wall template fastening system shown in Figure 1, because horizontal steel tube supports in the side wall concrete casting process, because the effect of concreting lateral pressure makes it to produce distortion, thereby cause producing gap between steel pipe support assembly and keel, even side wall template 16 produces gap with the new-old concrete joint portion, cause concreting and run the problem of mould, spillage, and the poor problem of joint portion waterproof quality.
And in the aforementioned embodiment, owing to having adopted fastener as shown in Figure 3,, therefore just can there be gap in the side wall junction surface of fastening side wall template 26 and base plate 21, namely can not cause concreting and run the problem of mould, spillage, and the poor problem of joint portion waterproof quality.
In embodiment as shown in the figure, be to be pressed on keelson 25 by two tubing 280 or steel pipe, in other embodiments, can be also that the tubing of unnecessary two is used for the side wall junction surface of formboard fastening and base plate 21.
In order to increase the contact area of fastener 28 and tubing 280, fastener 28 has arc-shaped depression portion, and it contacts with tubing 280.
Claims (2)
1. be used for the fastening system of structure side wall new-old concrete junction template, the side plan of base plate being built the side wall template of side wall carries out fastening, comprise the supporting component that the offside wall form that consists of steel pipe supports, it is characterized in that, also comprise fastener, this fastener comprises the bolt of buckle in the side wall junction surface that is embedded in base plate, two tubing, fastener and clamp nut, these two tubing are horizontal and by these a plurality of fasteners, be pressed on the keel of side wall template, corresponding each this fastener, this bolt passes the bolt hole that also passes this fastener simultaneously from these two steel pipes, clamp nut coordinates with this bolt, with by means of this fastener, steel pipe, keel make the side wall junction surface secure fit of side wall template and base plate.
2. the system as claimed in claim 1, is characterized in that, described fastener contacts described steel pipe by arc-shaped depression portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201254400U CN203285055U (en) | 2013-03-19 | 2013-03-19 | System used for fastening formwork at joint of new concrete and old concrete on structural side wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201254400U CN203285055U (en) | 2013-03-19 | 2013-03-19 | System used for fastening formwork at joint of new concrete and old concrete on structural side wall |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203285055U true CN203285055U (en) | 2013-11-13 |
Family
ID=49541426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013201254400U Expired - Lifetime CN203285055U (en) | 2013-03-19 | 2013-03-19 | System used for fastening formwork at joint of new concrete and old concrete on structural side wall |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203285055U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104775617A (en) * | 2015-04-13 | 2015-07-15 | 中冶建工集团有限公司 | Method for reinforcing cast-in-place concrete formwork |
-
2013
- 2013-03-19 CN CN2013201254400U patent/CN203285055U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104775617A (en) * | 2015-04-13 | 2015-07-15 | 中冶建工集团有限公司 | Method for reinforcing cast-in-place concrete formwork |
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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: 20131113 |