CN209397607U - A kind of active end structure of tension bracing members - Google Patents
A kind of active end structure of tension bracing members Download PDFInfo
- Publication number
- CN209397607U CN209397607U CN201822064121.9U CN201822064121U CN209397607U CN 209397607 U CN209397607 U CN 209397607U CN 201822064121 U CN201822064121 U CN 201822064121U CN 209397607 U CN209397607 U CN 209397607U
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- Prior art keywords
- stiffener
- bracing members
- steel
- steel pipe
- pipe support
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Abstract
The utility model discloses a kind of active end structures of tension bracing members, it is desirable to provide a kind of highly-safe active end structure of tension bracing members.The steel waist rail being connected when it includes installation with building enclosure, the attachment base being connected with steel waist rail and steel pipe support；The attachment base include with steel waist rail end plate overlapped stiffener, be set in the middle part of stiffener, protrude into the guide rod of steel pipe support and the gusset of muti-piece connection guide and stiffener；The steel pipe support closes on the top plate of one end setting and stiffener cooperation of attachment base；More screw rods are equipped on the top plate, the screw rod passes through the end plate of stiffener and steel waist rail, and the both ends of screw rod have screwed nut；The limiting slot for being embedded in gad block is arranged in the upper end of the guide rod.The utility model has bidirectional stress characteristic, increases safety, the stability of bracing members system, effectively reduces the generation of " falling support " accident, has the characteristics that safety, economical, the processing is simple and easily promotes.
Description
Technical field
The utility model relates to foundation pit construction support construction technical fields, more particularly, to a kind of tension bracing members movable end
Structure.
Background technique
In order to promote Regional Economic Development, solve the problems such as traffic congestion, more and more metro projects put into construction
In the middle, urban track traffic enters the gold period of great development, great outburst.
Cut and cover method plays the key player that can not be despised as one of big engineering method of station construction two in subway construction.
When excavating station pit, bracing members are to ensure that the important method for protecting support of deep pit monitor production.Common bracing members are by thousand
After jin top applies precompression, the mode that gad block chokes movable end is set into steel pipe support and the gap of movable end, realizes steel
Support is reliably connected with purlin.The method for being supportted by preload tube and squeezing into voussoir, the bracing members after making removal jack reach
Elongation can not be sprung back after to design length, this mode can only play the anti-pressure ability of bracing members, when foundation pit is located at soft layer
When middle, by being pulled under the reaction of brace pre axial force to deformation on the outside of foundation pit, bracing members at this time are no longer pressurized enclosed structure, active
End loosens, structural stability decline, and as foundation pit further excavates downwards, bracing members very likely unload completely
The serious accident of existing " falling support ", causes the economic injures and deaths of personnel.
With the rapid development of rail traffic, the scale of construction and scale of foundation pit are also increasing, deeper and deeper, supporting construction
Stability and security facing more stern challenge, common steel support structure form have been unable to satisfy engineering gradually and have needed
It asks, if active end node has certain tensile property by the very big awkward situation for improving pattern foundation pit supporting structure, to improve the safety of engineering
Property, reduce the generation for even preventing " falling support " accident.
Utility model content
The purpose of this utility model is intended to overcome the shortcomings of the prior art, provides a kind of highly-safe, stability
The good active end structure of tension bracing members.
In order to solve the above-mentioned technical problem, the utility model is achieved through the following technical solutions:
A kind of active end structure of tension bracing members, including the steel waist rail being connected when installation with building enclosure, with steel waist rail phase
Attachment base even and steel pipe support；The attachment base include with steel waist rail end plate overlapped stiffener, be set in stiffener
The gusset in portion, the guide rod for protruding into steel pipe support and muti-piece connection guide and stiffener；The steel pipe support closes on one end of attachment base
Top plate with stiffener cooperation is set；It is equipped with more screw rods on the top plate, the screw rod passes through stiffener and steel waist rail
End plate, and the both ends of screw rod have screwed nut；The limiting slot for being embedded in gad block is arranged in the upper end of the guide rod.
Preferably, the rectangular in cross-section of the guide rod.
Preferably, the guide rod and stiffener are using welded connecting.
Preferably, the top plate and steel pipe support are using welded connecting.
Preferably, the screw rod is four.
Compared with prior art, the utility model has the advantages that
The utility model not only resistance to compression but also tension, be effectively improved bracing members not tension the problem of, effectively avoid " falling support " accident
Generation, the safety and stability of foundation pit supporting construction can be effectively improved.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is structural schematic diagram when the utility model is used.
Fig. 2 is the cross-sectional view of A-A in Fig. 1.
Fig. 3 is the cross-sectional view of B-B in soil 1, wherein partial component is omitted.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are under that premise of not paying creative labor
Every other embodiment obtained, fall within the protection scope of the utility model.In the following description, in order to clearly demonstrate originally
The structure and working method of utility model will be described on the basis of attached drawing by many Directional words, but should be incited somebody to action
The Word Understandings such as "front", "rear", "left", "right", "upper", "lower" are not construed as word of limitation for convenience of term.
The active end structure of tension bracing members shown in Fig. 1-3, the steel waist rail 1 connected with building enclosure 20 when including installation,
Attachment base 2 and the steel pipe support 3 being connected with steel waist rail 1；The attachment base 2 include with 1 end plate of steel waist rail overlapped stiffener 4,
It is set to 4 middle part of stiffener, protrudes into the guide rod 11 of steel pipe support 3 and the gusset 5 of muti-piece connection guide 11 and stiffener 4；It is described
Steel pipe support 3 closes on the top plate 6 that one end setting of attachment base 2 cooperates with stiffener 4；Four screw rods 7 are equipped on the top plate 6,
The screw rod 7 passes through the end plate of stiffener 4 and steel waist rail 1, and the both ends of screw rod 7 have screwed nut 8；The upper end of the guide rod 11
The limiting slot 9 for being embedded in gad block 10 is set.
In the present embodiment, the rectangular in cross-section of the guide rod 11, it is clear that other suitable shapes can also be used.The guide rod 11
With stiffener 4 using welded connecting.The top plate 6 is with steel pipe support 3 using welded connecting.
The present invention is extended by the collocation of screw rod and nut using limitation bracing members are played the role of, by limiting slot
Gad block 10 plays the role of limiting bracing members compression.
When installation, steel waist rail is set up first and uniformly sets expansion bolt along its length, and encryption adds at node
Thwack sets expansion bolt；Attachment base is installed again and steel pipe supports and apply precompression, one end of jack is withstood on stiffener, another
End is withstood on the top plate of steel pipe support, and after pre-applied force reaches design value, gad block is driven into limiting slot, makes structure can not be after
It is continuous to be compressed.After completing above-mentioned steps, screw rod is sequentially passed through into the aperture on top plate, stiffener and steel waist rail and is pierced by, then is distinguished
It is tightened with nut from screw rod inward at both ends.
The utility model can effectively improve the globality and stability of foundation pit supporting construction, reduce the hair of " falling support " phenomenon
It is raw, be conducive to safe construction, it is easy to operate, it is applied widely.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (5)
1. a kind of active end structure of tension bracing members, including the steel waist rail (1) being connected when installation with building enclosure (20), with steel waist
The connected attachment base (2) of beam (1) and steel pipe support (3)；It is characterized by: the attachment base (2) includes holding with steel waist rail (1)
Plate overlapped stiffener (4), the guide rod (11) and muti-piece connection for being set in the middle part of stiffener (4), protruding into steel pipe support (3) are led
The gusset (5) of bar (11) and stiffener (4)；One end setting that the steel pipe support (3) closes on attachment base (2) is matched with stiffener (4)
The top plate (6) of conjunction；More screw rods (7) are equipped on the top plate (6), the screw rod (7) passes through stiffener (4) and steel waist rail
(1) end plate, and the both ends of screw rod (7) have screwed nut (8)；The limit for being embedded in gad block is arranged in the upper end of the guide rod (11)
Position slot (9).
2. the active end structure of tension bracing members according to claim 1, it is characterised in that: the section of the guide rod (11) is in square
Shape.
3. the active end structure of tension bracing members according to claim 1 or claim 2, it is characterised in that: the guide rod (11) with put more energy into
Plate (4) is using welded connecting.
4. the active end structure of tension bracing members according to claim 1 or claim 2, it is characterised in that: the top plate (6) and steel pipe support
(3) using welded connecting.
5. the active end structure of tension bracing members according to claim 1 or claim 2, it is characterised in that: the screw rod (7) is four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822064121.9U CN209397607U (en) | 2018-12-10 | 2018-12-10 | A kind of active end structure of tension bracing members |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822064121.9U CN209397607U (en) | 2018-12-10 | 2018-12-10 | A kind of active end structure of tension bracing members |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209397607U true CN209397607U (en) | 2019-09-17 |
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ID=67894162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822064121.9U Active CN209397607U (en) | 2018-12-10 | 2018-12-10 | A kind of active end structure of tension bracing members |
Country Status (1)
| Country | Link |
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| CN (1) | CN209397607U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110593270A (en) * | 2019-09-19 | 2019-12-20 | 广州宏途设备工程有限公司 | Novel support tensile loose head |
| CN111042148A (en) * | 2019-12-20 | 2020-04-21 | 河海大学 | Method for fixing wedge-shaped steel falcon at assembled steel support loose end |
-
2018
- 2018-12-10 CN CN201822064121.9U patent/CN209397607U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110593270A (en) * | 2019-09-19 | 2019-12-20 | 广州宏途设备工程有限公司 | Novel support tensile loose head |
| CN111042148A (en) * | 2019-12-20 | 2020-04-21 | 河海大学 | Method for fixing wedge-shaped steel falcon at assembled steel support loose end |
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