CN203145451U - Retractable steel beam for formwork support - Google Patents
Retractable steel beam for formwork support Download PDFInfo
- Publication number
- CN203145451U CN203145451U CN 201320056562 CN201320056562U CN203145451U CN 203145451 U CN203145451 U CN 203145451U CN 201320056562 CN201320056562 CN 201320056562 CN 201320056562 U CN201320056562 U CN 201320056562U CN 203145451 U CN203145451 U CN 203145451U
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- steel
- retractable
- steel pipe
- combined
- formwork support
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Abstract
The utility model relates to a retractable steel beam for a formwork support. The retractable steel beam for the formwork support is characterized in that a piece of joist steel is inserted into a square steel tube to form a combined steel beam with the length variable within a certain range, a flat steel hanging ring is hung on the combined steel beam, and the combined steel beam is hung at a proper position through the flat steel hanging ring to bear construction load in concrete pouring. The retractable steel beam can meet the requirement of floor slabs with different spans for optional change of the length of a steel formwork support beam, waste of construction circulating materials and increase of corresponding workload due to repeated cutting or spreading of the steel formwork support beam are avoided when the spans of the floor slabs are changed, construction cost is saved, and construction efficiency is improved.
Description
Technical field
The utility model relates to floorslab concrete in a kind of structural steelwork and builds horizontal supporting equipment with steel form.
Background technology
In structural steelwork, traditional template support pattern has two kinds during concreting, a kind ofly does the template concreting with profiled sheet, and a kind of is to adopt full hall scaffold, laying construction template concreting are set.
Profiled sheet is done the form of construction work of template concreting and is used more in high-rise steel structure, it has construction advantage such as convenient, but no matter adopt open-type profiled sheet composite floor system or closed type, reducing type profiled sheet composite floor system, not only construction cost is higher, and the stiffening rib of profiled sheet influences the configuration of reinforced concrete floor bottom steel bar stress, make the profiled sheet composite floor system have tangible one-way slabs feature, there are adverse effect in the globality of floor and the transmission of floor seismic shear.
Full hall scaffold laying construction template concreting is set in the steel building engineering can better realizes every structural performance of floor, but speed of application is slow, circulation material is more.
The length of the construction brace summer of concreting is generally floor span (and center to center distance of floor two-end structure girder steel) and subtracts 100mm.For example each solitary building of certain residential quarter has 2700 mm, 3300 mm in each layer, each standard width of a room in an old-style house floor span, 3900 mm, and then the length of Dui Ying construction formwork brace summer (as adopting i iron) is respectively 2600 mm, 3200 mm, 3800 mm.
If next engineering part building girder steel spacing is 3000 mm, 3600 mm, 4200 mm, another part building girder steel spacing is 3300 mm, 3900 mm, 4500 mm.If at this moment continue to use original brace summer (i iron), in the time of then and need saw short, the time and need spreading, cause the waste of material and the increase of construction cost.
Summary of the invention
The purpose of this utility model provides a kind of template supporting retractable steel joist, to adapt to the demand that the different spans floor changes arbitrarily steel form supporting beam length, saves construction cost, improves efficiency of construction.
The utility model partly inserts square steel pipe with i iron and forms the combined member that length can freely stretch, cuts off repeatedly when avoiding the floor span variation or spreading steel form supporting beam causes the construct waste of circulation material and the increase of relevant work amount.
The technical solution of the utility model is: template supporting constitutes by being combined into the combined girder steel that a length can change within the specific limits in square steel pipe of an i iron insertion with retractable steel joist, hang the band steel suspension ring in structural steel beam, combined girder steel is hung in position the working load when bearing concreting by the band steel suspension ring.
Lay steel form at combined girder steel, can build reinforced concrete floor on the steel form.Economy provides the vertical support of concreting easily for the floor of different spans.By the free adjustment of combined girder steel length, reduce the quantity of the combined member that needs in the construction project, thereby reducing the construction costs, improve speed of application.
Less than 2600 o'clock, adopt little steel pipe to replace i iron in floor span, big steel pipe replaces square steel pipe, and little steel pipe inserts big steel pipe and forms combined girder steel.
The brace summer of the combined member that the utility model adopts square steel pipe and i iron construction formwork during as concreting.The weight of floorslab concrete is delivered on the girder steel of agent structure by the band steel suspension ring that are suspended on the structural steel beam, has avoided the setting of scaffold, reaches to improve the floorslab concrete speed of perfusion, saves the purpose of construction cost.
The supporting of the utility model template can be implemented in freely stretching in the certain-length scope with retractable steel joist, the needs of when changing to adapt to floor span supporting beam length freely being adjusted.
Description of drawings
Fig. 1 is template supporting retractable steel joist structural representation of the present utility model.
Among the figure: 1, reinforced concrete floor, 2, steel form, 3, i iron, 4, the band steel suspension ring, 5, structural steel beam, 6, square steel pipe, 7, bolt.
The specific embodiment
As shown in Figure 1, template supporting of the present utility model is inserted in the square steel pipe 6 by an i iron 3 with retractable steel joist, be combined into the combined girder steel that a length can change within the specific limits, i iron 3 is fixing with bolt 7 with square steel pipe 6 binding sites, hang band steel suspension ring 4 in structural steel beam 5, combined girder steel is hung in position the working load when bearing concreting by band steel suspension ring 4.Lay steel form 2 at combined girder steel, can build reinforced concrete floor 1 on the steel form 2.
Less than 2600 o'clock, adopt little steel pipe to replace i iron 3 in floor span, big steel pipe replaces square steel pipe 6, and little steel pipe inserts big steel pipe and forms combined girder steel.
Concrete work progress: after the construction of finishing the steel work girder steel, hang and weld the fixed flat steel suspension ring according to designing requirement at girder steel, tighten the bolt of i iron and square steel pipe joint location bottom after the length adjustment of combined girder steel is suitable, two ends ride on the band steel suspension ring.Behind the combined girder steel installation in position, top laying construction template, assembling reinforcement, concreting, concrete are removed combined girder steel and are reused after the maintenance expiration, and the excision of band steel suspension ring exposed parts is reused.
For example: square steel pipe length is 800mm, the minimum lap length of square steel pipe and i iron is 200mm, the length of the i iron that is used therewith has 2600 mm, 3200 mm, 3800 mm, then the length of combined girder steel can freely change between 2600 mm-4400 mm, do not need the short i iron of spreading or saw and can adapt to the needs that span 2700 mm-4500 mm floorslab concrete is built, reach the purpose of saving construction cost, improving speed of application.
Claims (3)
1. retractable steel joist use in template supporting, it is characterized in that: the template supporting constitutes by being combined into the combined girder steel that a length can change within the specific limits in square steel pipe of an i iron insertion with retractable steel joist; Hang the band steel suspension ring in structural steel beam, combined girder steel is hung in position by the band steel suspension ring, the working load when bearing concreting.
2. retractable steel joist use in template according to claim 1 supporting, it is characterized in that: during less than 2600mm, replace i iron with little steel pipe in floor span, big steel pipe replaces square steel pipe, little steel pipe insertion big steel pipe formation combined girder steel.
3. retractable steel joist is used in template supporting according to claim 1, it is characterized in that described i iron and square steel pipe binding site bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320056562 CN203145451U (en) | 2013-02-01 | 2013-02-01 | Retractable steel beam for formwork support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320056562 CN203145451U (en) | 2013-02-01 | 2013-02-01 | Retractable steel beam for formwork support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203145451U true CN203145451U (en) | 2013-08-21 |
Family
ID=48972990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320056562 Expired - Fee Related CN203145451U (en) | 2013-02-01 | 2013-02-01 | Retractable steel beam for formwork support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203145451U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103883121A (en) * | 2014-02-21 | 2014-06-25 | 金天德 | Extensible steel-truss-type formwork support |
-
2013
- 2013-02-01 CN CN 201320056562 patent/CN203145451U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103883121A (en) * | 2014-02-21 | 2014-06-25 | 金天德 | Extensible steel-truss-type formwork support |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: KUNMING STEEL GROUP DESIGN INSTITUTE Co.,Ltd. Assignor: KUNMING IRON & STEEL GROUP Co.,Ltd. Contract record no.: 2014530000075 Denomination of utility model: Retractable steel beam for formwork support Granted publication date: 20130821 License type: Exclusive License Record date: 20140609 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130821 Termination date: 20220201 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |