CN204780942U - Can dismantle combination formula variable cross section shaped steel waist rail - Google Patents
Can dismantle combination formula variable cross section shaped steel waist rail Download PDFInfo
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- CN204780942U CN204780942U CN201520466750.8U CN201520466750U CN204780942U CN 204780942 U CN204780942 U CN 204780942U CN 201520466750 U CN201520466750 U CN 201520466750U CN 204780942 U CN204780942 U CN 204780942U
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Abstract
The utility model discloses a can dismantle combination formula variable cross section shaped steel waist rail comprises with connecting device uniform section channel -section steel waist rail, variable cross section channel -section steel waist rail jointly, uniform section channel -section steel waist rail constitute by uniform section channel -section steel and bolthole, the bolt hole of going up processing, be located the structure and is cut the district, mainly bear the shear force effect, variable cross section channel -section steel waist rail constitutes by variable cross section channel -section steel and the stiffening rib, the bolt hole that go up to set up, be located structure flexural district, mainly hold the flexural square and act on, connecting device constitute by connecting plate and the bolt hole of going up processing for with uniform section and variable cross section channel -section steel waist rail link group together. Variable cross section channel -section steel waist rail carries out the variable cross section in the tip position to be handled, and the gradual change of tip cross -section is to the same with uniform section channel -section steel waist rail. The utility model discloses the district adopts the shaped steel in different cross -sections to different atresss, has effectively solved ordinary shaped steel waist rail and has born the weight of not enoughly or the extravagant scheduling problem of steel, but had advantages such as light in weight, easy dismounting recycle.
Description
Technical field
The utility model relates to base pit engineering support technology field, particularly relates to a kind of Demountable combined-type variable cross-section steel wale being applied to foundation pit supporting construction.
Background technology
Along with the development of economic technology and the increase of the size of population, urban skyscraper gets more and more, and almost every highrise building all needs excavation pit, and foundation ditch majority needs supporting.During pattern foundation pit supporting structure, waist rail is conventional support unit, and waist rail also claims girt strip, and the horizontal force between space enclosing structure and anchor pole is transmitted in its effect, mainly bears bending and shearing effect.At present, waist rail generally has reinforced concrete beam and two kinds, girder steel.Reinforced concrete beam is that material is made with concrete, and occupy an leading position in waist rail uses, but its construction is loaded down with trivial details, and can not recycling; Girder steel is that material is made with shaped steel, has that little, the bearing capacity of deadweight is large, the advantage such as simple, easy to operate of constructing, and is widely used gradually.
In Practical Project, each position of waist rail is stressed is uneven, and anchor pole connecting portion is comparatively large by shearing, and stake and beam contact site are subject to moment of flexure larger.Traditional girder steel is generally uniform beam, although such waist rail makes simple, do not consider that the change of force area adopts the section steel material in same cross section, not only cause the waste of steel, and weight is large, supporting capacity is poor, supporting can be caused time serious to lose efficacy; In addition, after Foundation Pit Construction completes, a large amount of section steel materials is forever embedded in underground, causes the wasting of resources and environment pollution.Consider lifting and the recycling of waist rail bearing capacity, and adopt the waist rail of varied cross section for different force areas, not yet have corresponding product or document introduction at present.
Summary of the invention
The purpose of this utility model is to provide a kind of Demountable combined-type variable cross-section steel wale, the steel wale of different cross section is adopted for different force area, effectively can solve the problems such as plain edition steel waist rail supporting capacity is poor, steel utilization ratio is low, and its lightweight, easy accessibility, recoverable.
Being configured to of the utility model Demountable combined-type variable cross-section steel wale: be made up of uniform section channel-section steel waist rail, variable cross-section channel-section steel waist rail and linkage; Described uniform section channel-section steel waist rail is made up of the bolthole of uniform section channel-section steel and upper processing thereof and bolt hole, is positioned at structure and is cut district, mainly bear shearing action; Described variable cross-section channel-section steel waist rail is made up of the stiffening rib of variable cross-section channel-section steel and upper setting thereof and bolt hole, be positioned at structure by curved district, mainly bear Moment, variable cross-section channel-section steel waist rail carries out variable cross-section process at end position, and end cross-sectional gradual change is to identical with uniform section channel-section steel waist rail; Described linkage is the junction plate with bolt hole, for uniform section waist rail and variable cross-section waist rail being combined.
In Demountable combined-type variable cross-section steel wale, described bolt hole all adopts oval bolt hole, to avoid because construction error causes the problem that in assembling process, bolt hole cannot be aimed at.
The construction method of the utility model Demountable combined-type variable cross-section steel wale: according to the difference of foundation pit earth stressor layer size, makes the Demountable combined-type variable cross-section steel wale comprising uniform section channel-section steel waist rail, variable cross-section channel-section steel waist rail and linkage of different model in advance; During installation, in waist rail installation position, the braced structures of A-frame as waist rail can be installed in advance, adopt piecemeal, continuous print method, first uniform section channel-section steel waist rail is lifted, utilize the anchorage effect of anchor pole in position, secondly lifting variable cross-section channel-section steel waist rail, after in place, utilizes linkage uniform section and variable cross-section channel-section steel waist rail Connecting groups to be combined; During dismounting, sequence of construction is contrary with erection procedure.
The advantage of the utility model Demountable combined-type variable cross-section steel wale:
(1) adopt the shaped steel of different cross section for different force area, both ensure that the supporting capacity of waist rail, and turn avoid unnecessary waste of material, alleviate waist rail deadweight;
(2) adopt bolted on connection between different cross section waist rail, assembly and disassembly is simple and convenient, reusable;
(3) during waist rail installation and removal, adopt piecemeal, continuous print method, simple to operation, save construction period;
(4) due to the in advance prefabricated each several part of steel wale, when foundation pit construction is to waist rail layer position, can installs immediately, carry in time.
Accompanying drawing explanation
Fig. 1 is the utility model Demountable combined-type variable cross-section steel wale structural representation.
Fig. 2 is scheme of installation of the present utility model.
Marginal data: 1-uniform section channel-section steel waist rail; 2-variable cross-section channel-section steel waist rail; 3-linkage; 4-stiffening rib; 5-bolthole; 6-anchor head; 7-backing plate; 8-anchor pole; 9-bolt hole; 10-A-frame; 11-pea gravel concreten.
Detailed description of the invention
The utility model provides a kind of Demountable combined-type variable cross-section steel wale, and the technical scheme realized for making the utility model, to reach object and effect characteristic clearly clear and definite, elaborates to its detailed description of the invention below in conjunction with accompanying drawing.
Demountable combined-type variable cross-section steel wale is as shown in Figure 1 made up of several uniform section channel-section steel waist rails 1, variable cross-section channel-section steel waist rail 2 and linkage 3, and connected mode is bolted on connection.
Described uniform section channel-section steel waist rail 1 is positioned at supporting and protection structure and is cut district, mainly bears shearing action, is provided with bolthole 5, facilitates skyhook 8 in the middle of uniform section channel-section steel waist rail 1 web; Web and the edge of a wing at uniform section channel-section steel waist rail 1 two ends are all preset with bolt hole 9, conveniently utilize the connection of linkage 3.
Described variable cross-section channel-section steel waist rail 2 is positioned at supporting and protection structure by curved district, mainly bear Moment, variable cross-section channel-section steel waist rail 2 carries out variable cross-section process at end position, end cross-sectional gradual change is to identical with uniform section channel-section steel waist rail 1, variable cross-section channel-section steel waist rail 2 internal welding is connected to stiffening rib 4, the web at two ends and the edge of a wing are all preset with bolt hole 9, conveniently utilize the connection of linkage 3.
Described linkage 3 is provided with bolt hole 9, and bolt hole 9 is elliptical aperture, avoids the problem because construction error causes bolt hole to align.
During construction, according to the difference of foundation pit earth stressor layer size, make the Demountable combined-type variable cross-section steel wale comprising uniform section channel-section steel waist rail 1, variable cross-section channel-section steel waist rail 2 and linkage 3 of different model in advance; During installation, in waist rail installation position, the braced structures of A-frame 10 as waist rail can be installed in advance, adopt piecemeal, continuous print method, first uniform section channel-section steel waist rail 1 is lifted, utilize the anchorage effect of anchor pole 5 in position, secondly lifting variable cross-section channel-section steel waist rail 2, after in place, utilizes linkage 3 uniform section and variable cross-section channel-section steel waist rail Connecting groups to be combined; During dismounting, contrary with installation path, remove linkage, variable cross-section channel-section steel waist rail and uniform section channel-section steel waist rail successively.
Claims (1)
1. a Demountable combined-type variable cross-section steel wale, comprises uniform section channel-section steel waist rail, variable cross-section channel-section steel waist rail and linkage, it is characterized in that, described uniform section channel-section steel waist rail is made up of the bolthole of uniform section channel-section steel and upper processing thereof and bolt hole; Described variable cross-section channel-section steel waist rail is made up of the stiffening rib of uniform section channel-section steel and upper setting thereof and bolt hole; Variable cross-section channel-section steel waist rail carries out variable cross-section process at end position, and end cross-sectional gradual change is to identical with uniform section channel-section steel waist rail; Described linkage is the junction plate with bolt hole, uniform section waist rail and variable cross-section waist rail can be combined.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520466750.8U CN204780942U (en) | 2015-07-02 | 2015-07-02 | Can dismantle combination formula variable cross section shaped steel waist rail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520466750.8U CN204780942U (en) | 2015-07-02 | 2015-07-02 | Can dismantle combination formula variable cross section shaped steel waist rail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204780942U true CN204780942U (en) | 2015-11-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520466750.8U Expired - Fee Related CN204780942U (en) | 2015-07-02 | 2015-07-02 | Can dismantle combination formula variable cross section shaped steel waist rail |
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| CN (1) | CN204780942U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104947688A (en) * | 2015-07-02 | 2015-09-30 | 山东科技大学 | Detachable combined variable-cross section steel middle beam |
| CN107905239A (en) * | 2017-11-07 | 2018-04-13 | 东通岩土科技（杭州）有限公司 | A kind of internal support of foundation pit of reinforcing member and the application reinforcing member |
| CN113585278A (en) * | 2021-07-08 | 2021-11-02 | 中建三局绿色产业投资有限公司 | Variable-rigidity high-adaptability combined inner support |
-
2015
- 2015-07-02 CN CN201520466750.8U patent/CN204780942U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104947688A (en) * | 2015-07-02 | 2015-09-30 | 山东科技大学 | Detachable combined variable-cross section steel middle beam |
| CN107905239A (en) * | 2017-11-07 | 2018-04-13 | 东通岩土科技（杭州）有限公司 | A kind of internal support of foundation pit of reinforcing member and the application reinforcing member |
| CN113585278A (en) * | 2021-07-08 | 2021-11-02 | 中建三局绿色产业投资有限公司 | Variable-rigidity high-adaptability combined inner support |
| CN113585278B (en) * | 2021-07-08 | 2022-07-05 | 中建三局绿色产业投资有限公司 | Variable-rigidity high-adaptability combined inner support |
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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: 20151118 Termination date: 20160702 |
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| CF01 | Termination of patent right due to non-payment of annual fee |