CN203440823U - Stress supporting device of pre-stressed supporting system of foundation pit - Google Patents
Stress supporting device of pre-stressed supporting system of foundation pit Download PDFInfo
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- CN203440823U CN203440823U CN201320498504.1U CN201320498504U CN203440823U CN 203440823 U CN203440823 U CN 203440823U CN 201320498504 U CN201320498504 U CN 201320498504U CN 203440823 U CN203440823 U CN 203440823U
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- shaped steel
- stress supporting
- purlin
- foundation ditch
- bearing end
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Abstract
The utility model discloses a stress supporting device of a pre-stressed supporting system of a foundation pit and is aimed at providing the stress supporting device capable of enhancing structural strength of a purlin beam and effectively preventing a connection structure between a horizontal supporting beam and the purlin beam from being damaged by a lateral shear force when the horizontal supporting beam adopts a diagonally bracing mode. The stress supporting device comprises stress supporting members arranged between adjacent two purlin beam steel sections of various purlin beam steel sections which form the purlin beam. Each stress supporting member comprises two mutually parallel supporting end plates and connecting pipes used for connecting the two supporting end plates as a whole.
Description
Technical field
The utility model relates to building foundation pit and goes along with sb. to guard him field, is specifically related to the stress supporting arrangement in a kind of foundation ditch pre-stressed support systems.
Background technology
In order to guarantee the safety of underground structure and foundation ditch surrounding enviroment, need to be at foundation pit side-wall and adopt the safeguard procedures such as support, reinforcing around.As shown in Figure 1, current foundation pit support system generally includes the one group of engineering method stake 1 arranging around margin of foundation pit, in engineering method stake inner side, encloses purlin beam 2 and some horizontal shores 4 enclosing between purlin beam that is arranged on.Enclosing purlin beam 4 has some purlin shaped steel that encloses to connect and surround from beginning to end conventionally.Horizontal shore in pre-stressed support systems by prestressing force reservation member 3 by 4 pairs of supports of horizontal shore enclose (prestressing force reservation member provides expansionary force that 4 pairs of supports of horizontal shore are enclosed between purlin beam 2) between purlin beam 2 in relative or adjacent both sides, with this, form the support strength that the support of foundation ditch is guaranteed to foundation pit support system.Horizontal shore 4 in foundation ditch pre-stressed support systems conventionally can use the mode of diagonal brace support is being enclosed between purlin beam, and horizontal shore 4 and its angle enclosing between purlin beam 2 to support are greater than or less than 90 degree; Now will and enclose at horizontal shore 4 between purlin beam, produce one with the lateral shear power F that encloses purlin beam direction, when this lateral shear power F is larger, hold very much cutting off with the high-strength bolt that encloses purlin beam for connecting horizontal shore, destroy horizontal shore and enclose the syndeton between purlin beam; Especially in removing the process of foundation ditch pre-stressed support systems, after a part of foundation ditch support is removed, connection horizontal shore is more prone to be cut off with the high-strength bolt that encloses purlin beam; Thereby destroy the braced structures in foundation ditch pre-stressed support systems.
Utility model content
The purpose of this utility model is in order to overcome in the foundation ditch pre-stressed support systems of prior art, when horizontal shore adopts the mode of diagonal brace enclosing between purlin beam to support, the lateral shear power producing is easily destroyed horizontal shore and is enclosed the problem of the syndeton between purlin beam; Provide a kind of and not only can strengthen the structural strength of enclosing purlin beam, and can effectively avoid horizontal shore to adopt diagonal brace mode time, the lateral shear power producing is by horizontal shore and enclose the stress supporting arrangement in the foundation ditch pre-stressed support systems that the syndeton between purlin beam damages.
The technical solution of the utility model is:
Stress supporting arrangement in a kind of foundation ditch pre-stressed support systems, comprise being arranged on forming adjacent two in the purlin shaped steel that respectively encloses enclose purlin beam and enclosing the stress supporting member between purlin shaped steel, this stress supporting member comprises two bearing end plates that are parallel to each other and connects two bearing end plates, the connector for two bearing end plates are connected as a single entity.The stress supporting member of this programme is arranged on adjacent two and encloses between purlin shaped steel, and is connected with adjacent two ends of enclosing purlin shaped steel respectively by two bearing end plates; And diagonal brace can directly be resisted against on stress supporting member in the end of enclosing the horizontal shore between purlin beam, or by strut member being resisted against on stress supporting member, thereby enhanced level brace summer and enclose the anti-shear ability between purlin beam, while effectively avoiding horizontal shore to adopt diagonal brace mode, the lateral shear power producing is by horizontal shore and enclose the syndeton destruction between purlin beam.On the other hand, adjacent two enclose between purlin shaped steel and are connected and can be strengthened the local strength that encloses purlin beam by stress supporting member, and then strengthen whole structural strength of enclosing purlin beam.
As preferably, stress supporting member comprises H shaped steel, and two described bearing end plates consist of two frange plates of H shaped steel, and described connector consists of the web of H shaped steel; The two ends of described H shaped steel are also respectively equipped with end socket cover plate.The stress supporting member of this programme is used as main component by H shaped steel, its easy to make and product low cost; And end socket cover plate is set respectively at the two ends of H shaped steel, form case structure, can further effectively improve the structural strength of stress supporting member, and then the brace summer and enclose the anti-shear ability between purlin beam of improving the standard.
As preferably, between end socket cover plate and H shaped steel, by being weldingly connected, connect.
As preferably, between two bearing end plates, be also provided with some reinforcement gripper shoes, strengthen gripper shoe and bearing end plate perpendicular.Strengthen gripper shoe and be conducive to improve the structural strength of stress supporting member, and then the brace summer and enclose the anti-shear ability between purlin beam of improving the standard.
As preferably, strengthen gripper shoe perpendicular with the web of H shaped steel, and the both sides of H shape steel web respectively symmetry be distributed with some reinforcement gripper shoes; Strengthening gripper shoe is connected with two frange plates and the web of H shaped steel by welding.
As preferably, strengthen gripper shoe rectangular, and strengthen in gripper shoe two drift angle places near the web of H shaped steel and the connecting portion of frange plate and be provided with and dodge unfilled corner.Dodging the setting of unfilled corner can avoid strengthening interfering between gripper shoe and the web of H shaped steel and the connecting portion of frange plate.
As preferably, on two bearing end plates, be respectively equipped with some connecting through holes, described bearing end plate and enclosing between purlin shaped steel end is bolted.This programme structure is conducive to stress supporting member and encloses being connected and dismounting between purlin shaped steel.
As preferably, connecting through hole is symmetrically distributed on two frange plates of H shape steel web.
As preferably, bearing end plate is connected by welding or flange with enclosing between purlin shaped steel end.
The beneficial effects of the utility model are: not only can strengthen the structural strength of enclosing purlin beam, and can effectively avoid horizontal shore to adopt diagonal brace mode time, the lateral shear power producing damages horizontal shore and the syndeton of enclosing between purlin beam.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of foundation ditch pre-stressed support systems of the prior art.
Fig. 2 a kind of structural representation of the present utility model.
Fig. 3 is a kind of cross-sectional view at A-A place in Fig. 2.
Stress supporting arrangement in Fig. 4 a kind of foundation ditch pre-stressed support systems of the present utility model a kind of structural representation in actual applications.
Stress supporting arrangement in Fig. 5 a kind of foundation ditch pre-stressed support systems of the present utility model another kind of structural representation in actual applications.
In figure: engineering method stake 1, enclose purlin beam 2, enclose purlin shaped steel 2a, 2b, prestressing force reservation member 3, horizontal shore 4, link seat 4a, stress supporting member 5, bearing end plate 6a, 6b, end socket cover plate 7, strengthens gripper shoe 8, connecting through hole 9, connector 10, dodges unfilled corner 11, to strut 12.
The specific embodiment
Below in conjunction with accompanying drawing and the specific embodiment, the utility model is described in further detail:
As shown in Figure 2 and Figure 3, the stress supporting arrangement in a kind of foundation ditch pre-stressed support systems, comprises being arranged on forming adjacent two in the purlin shaped steel that respectively encloses enclose purlin beam and enclosing the stress supporting member 5 between purlin shaped steel.This stress supporting member 5 comprises two bearing end plate 6a, 6b that are parallel to each other and connects two bearing end plates, the connector 10 for two bearing end plates are connected as a single entity; Specifically, stress supporting member 5 comprises H shaped steel, and above-mentioned two bearing end plate 6a, 6b consist of two frange plates of H shaped steel, and above-mentioned connector 10 consists of the web of H shaped steel.The two ends of H shaped steel are also respectively equipped with end socket cover plate 7.Between end socket cover plate and H shaped steel, by being weldingly connected, connect.Between two bearing end plate 6a, 6b, be also provided with some reinforcement gripper shoes 8, strengthen gripper shoe 8 perpendicular with bearing end plate; Be to be provided with some reinforcement gripper shoes 8 between two edges of a wing of H shaped steel, strengthen gripper shoe 8 perpendicular with two edges of a wing of H shaped steel.Strengthen gripper shoe 8 also perpendicular with the web of H shaped steel, and the both sides of H shape steel web are symmetrical is respectively distributed with some reinforcement gripper shoes 8.Strengthen gripper shoe 8 rectangular, and strengthen in gripper shoe 8 two drift angle places near the web of H shaped steel and the connecting portion of frange plate and be provided with and dodge unfilled corner 11.Strengthening gripper shoe is connected with two frange plates and the web of H shaped steel by welding.On two bearing end plate 6a, 6b, be respectively equipped with some connecting through holes 9, on two edges of a wing of H shaped steel, be respectively equipped with some connecting through holes.Connecting through hole is symmetrically distributed on two frange plates of H shape steel web. Bearing end plate 6a, 6b are connected with enclosing between purlin shaped steel end by bolt or welding or flange, and the frange plate of H shaped steel is connected with enclosing between purlin shaped steel end by bolt or welding or flange.
The concrete application of stress supporting arrangement of the present utility model is as follows:
As shown in Figure 4, stress supporting member 5 is arranged on to form and encloses adjacent two of purlin beam 2 and enclose between purlin shaped steel 2a, 2b, and be connected with adjacent two ends of enclosing purlin shaped steel 2a, 2b respectively by two bearing end plate 6a, 6b.Stress supporting member 5 and diagonal brace between the horizontal shore 4 enclosing on purlin beam by strut 12 is connected, strut 12 one end are resisted against on the bearing end plate of stress supporting member 5, and the other end is resisted against and encloses the link seat 4a of purlin beam 4 upper (the link seat 4a of horizontal shore 4 by its end with enclose purlin beam be connected); Thereby enhanced level brace summer 4 and enclose the anti-shear ability between purlin beam 2, while effectively avoiding horizontal shore to adopt diagonal brace mode, the lateral shear power producing is by horizontal shore and the syndeton destruction of enclosing between purlin beam.
As shown in Figure 5, stress supporting member 5 is arranged on to form and encloses adjacent two of purlin beam 2 and enclose between purlin shaped steel 2a, 2b, and be connected with adjacent two ends of enclosing purlin shaped steel 2a, 2b respectively by two bearing end plate 6a, 6b.The bearing end plate of stress supporting member 5 is directly resisted against on the link seat 4a of horizontal shore 4, and is connected with link seat 4a; Thereby enhanced level brace summer 4 and enclose the anti-shear ability between purlin beam 2.
Claims (9)
1. the stress supporting arrangement in a foundation ditch pre-stressed support systems, it is characterized in that, comprise being arranged on forming adjacent two in the purlin shaped steel that respectively encloses enclose purlin beam and enclosing the stress supporting member (5) between purlin shaped steel (2a, 2b), this stress supporting member comprises two bearing end plates that are parallel to each other (6a, 6b) and connects two bearing end plates, the connector (10) for two bearing end plates are connected as a single entity.
2. the stress supporting arrangement in a kind of foundation ditch pre-stressed support systems according to claim 1, it is characterized in that, described stress supporting member comprises H shaped steel, and two described bearing end plates consist of two frange plates of H shaped steel, and described connector consists of the web of H shaped steel; The two ends of described H shaped steel are also respectively equipped with end socket cover plate (7).
3. the stress supporting arrangement in a kind of foundation ditch pre-stressed support systems according to claim 2, is characterized in that, between described end socket cover plate and H shaped steel, by being weldingly connected, connects.
4. according to the stress supporting arrangement in a kind of foundation ditch pre-stressed support systems described in claim 1 or 2 or 3, it is characterized in that, between described two bearing end plates, be also provided with some reinforcement gripper shoes (8), strengthen gripper shoe and bearing end plate perpendicular.
5. the stress supporting arrangement in a kind of foundation ditch pre-stressed support systems according to claim 4, is characterized in that, strengthens gripper shoe perpendicular with the web of H shaped steel, and the both sides of H shape steel web respectively symmetry be distributed with some reinforcement gripper shoes; Strengthening gripper shoe is connected with two frange plates and the web of H shaped steel by welding.
6. the stress supporting arrangement in a kind of foundation ditch pre-stressed support systems according to claim 5, it is characterized in that, described reinforcement gripper shoe is rectangular, and strengthens in gripper shoe two drift angle places near the web of H shaped steel and the connecting portion of frange plate and be provided with and dodge unfilled corner (11).
7. according to the stress supporting arrangement in a kind of foundation ditch pre-stressed support systems described in claim 1 or 2 or 3, it is characterized in that, on described two bearing end plates, be respectively equipped with some connecting through holes (9), described bearing end plate and enclosing between purlin shaped steel end is bolted.
8. the stress supporting arrangement in a kind of foundation ditch pre-stressed support systems according to claim 7, is characterized in that, described connecting through hole is symmetrically distributed on two frange plates of H shape steel web.
9. according to the stress supporting arrangement in a kind of foundation ditch pre-stressed support systems described in claim 1 or 2 or 3, it is characterized in that, described bearing end plate is connected with enclosing between purlin shaped steel end by welding or flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320498504.1U CN203440823U (en) | 2013-08-15 | 2013-08-15 | Stress supporting device of pre-stressed supporting system of foundation pit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320498504.1U CN203440823U (en) | 2013-08-15 | 2013-08-15 | Stress supporting device of pre-stressed supporting system of foundation pit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203440823U true CN203440823U (en) | 2014-02-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320498504.1U Expired - Fee Related CN203440823U (en) | 2013-08-15 | 2013-08-15 | Stress supporting device of pre-stressed supporting system of foundation pit |
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| CN (1) | CN203440823U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104032757A (en) * | 2014-06-10 | 2014-09-10 | 德清鑫德机械有限公司 | Support structure for foundation pit corner position |
-
2013
- 2013-08-15 CN CN201320498504.1U patent/CN203440823U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104032757A (en) * | 2014-06-10 | 2014-09-10 | 德清鑫德机械有限公司 | Support structure for foundation pit corner position |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Hu Huan Inventor before: He Yixin |
|
| COR | Change of bibliographic data | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140219 Termination date: 20170815 |