CN220666248U - Deep foundation pit supporting system with all-steel structure in urban complex environment - Google Patents
Deep foundation pit supporting system with all-steel structure in urban complex environment Download PDFInfo
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- CN220666248U CN220666248U CN202322299955.9U CN202322299955U CN220666248U CN 220666248 U CN220666248 U CN 220666248U CN 202322299955 U CN202322299955 U CN 202322299955U CN 220666248 U CN220666248 U CN 220666248U
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- pull rod
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- supporting
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 22
- 239000010959 steel Substances 0.000 title claims abstract description 22
- 238000010276 construction Methods 0.000 claims description 12
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 230000007613 environmental effect Effects 0.000 abstract 1
- 239000004567 concrete Substances 0.000 description 6
- 230000008901 benefit Effects 0.000 description 4
- 238000004873 anchoring Methods 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000011150 reinforced concrete Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
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Abstract
The application relates to a deep foundation pit supporting system of urban complex environment all-steel structure, include: the horizontal support structure comprises an upper chord beam, beam inner supports, a beam string beam and a prestress applying device, wherein the upper chord beam is arranged around the inner wall of the foundation pit, a plurality of the beam inner supports are arranged in the upper chord beam, the beam string beam is arranged between two adjacent beam inner supports, and the prestress applying device is arranged at the contact ends of the beam inner supports and the beam string beam and the upper chord beam; and the vertical supporting structure is arranged below the horizontal supporting structure. The utility model has the characteristics of cost saving, compression period, energy saving, environmental protection and the like.
Description
Technical Field
The application relates to the technical field of foundation pit support, in particular to a deep foundation pit support system with an all-steel structure in a city complex environment.
Background
In recent years, with the increasing reduction of the range of available building land in cities and the increasing of underground buildings and pipelines in cities, the application of systems such as slope releasing, anchor-stretching supporting and the like in foundation pits in the building construction process in cities is affected to a certain extent, the inner supporting type supporting system begins to become the main angle of a horizontal supporting system in the deep foundation pit supporting structure, and the safe and reliable inner supporting structure plays an increasingly important role in foundation pit safety. Conventional internal supports are typically in the form of steel supports or reinforced concrete supports. The reinforced concrete support has the advantages of high rigidity, good integrity and strong applicability, but has the defects of poor economy, large influence on environment when waiting for the concrete curing age and dismantling, and the like. The steel support has the advantages of quick construction, repeated utilization of components and the like, and meanwhile, the defects of complex node structure, poor integrity, poor stability and the like are also present.
Therefore, there is a need for a deep foundation pit supporting system that can provide convenience in construction, shorten construction period, reduce construction cost and environment while ensuring the safety of foundation pit
Disclosure of Invention
Based on this, it is necessary to provide a deep foundation pit supporting system with an all-steel structure in a complex urban environment, so as to solve the problems mentioned in the background art.
An urban complex environment all-steel structure deep foundation pit supporting system, comprising:
the horizontal support structure comprises an upper chord beam, beam inner supports, a beam string beam and a prestress applying device, wherein the upper chord beam is arranged around the inner wall of the foundation pit, a plurality of the beam inner supports are arranged in the upper chord beam, the beam string beam is arranged between two adjacent beam inner supports, and the prestress applying device is arranged at the contact ends of the beam inner supports and the beam string beam and the upper chord beam;
and the vertical supporting structure is arranged below the horizontal supporting structure.
As one preferable mode of the deep foundation pit supporting system with the urban complex environment and the full steel structure, the beam inner support comprises a pair of supports and a corner brace, wherein the pair of supports are arranged between two opposite sides of the upper chord beam, and the corner brace is arranged between two adjacent sides of the upper chord beam.
As one preferable mode of the deep foundation pit supporting system with the urban complex environment and the full steel structure, the beam string comprises a lower chord member and a supporting rod, a plurality of lower chord members are connected end to form an arc-shaped structure, two ends of the arc-shaped structure are connected with the upper chord member through anchor nodes, the supporting rod is arranged on the inner side of the arc-shaped structure, one end of the supporting rod is connected with the lower chord member, and the other end of the supporting rod is connected with the upper chord member through a prestress applying device.
As a preferable mode of the deep foundation pit supporting system with the urban complex environment and the full steel structure, the anchoring nodes comprise an outer anchoring node and an inner anchoring node.
As one preferable mode of the deep foundation pit supporting system with the urban complex environment and the full steel structure, the lower chord comprises a single-lug pull rod connector, a double-lug pull rod connector, a pin shaft, a lock nut and a rod body, wherein one ends of the single-lug pull rod connector and the double-lug pull rod connector are connected with the end part of the rod body through the lock nut, and the adjacent lower chord is connected with each other through the joint ends penetrating through the single-lug pull rod connector and the double-lug pull rod connector through the pin shaft.
As one preferable choice of the deep foundation pit supporting system with the all-steel structure in the urban complex environment, the vertical supporting structure comprises upright posts and joists, wherein the upright posts are arranged below the horizontal supporting structure, and the joists are arranged between the upright posts and the horizontal supporting structure.
The utility model has the beneficial effects that:
1. the structure of the utility model is standardized and modularized by unified processing in factories, is convenient to install, does not need maintenance, and is rapid in construction. And the demolishing stage avoids the work of breaking a large amount of concrete, can effectively save more than 70% of construction period compared with a concrete support, and can effectively reduce the concrete consumption and the garbage generation amount after demolishing.
2. Compared with the traditional concrete, the utility model has small occupied supporting space, obviously increases the earth excavation construction area and provides convenience for construction.
3. The utility model can be recycled, greatly reduces construction cost, reduces direct engineering cost by about 20 percent compared with concrete support, and has more obvious economic benefit brought by simple manufacture, transportation and construction and shortened construction period.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic structural view of a support system according to an embodiment of the present application;
FIG. 2 is an enlarged schematic view of the structure shown at A in FIG. 1;
FIG. 3 is an enlarged schematic view of the structure at B in FIG. 1;
FIG. 4 is a schematic view of a beam string in an embodiment of the present application;
FIG. 5 is a schematic exploded view of the bottom chord of an embodiment of the present application;
FIG. 6 is a schematic structural diagram of an external anchor node according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of an anchor node according to an embodiment of the present application;
reference numerals illustrate:
1. a top chord beam; 2. a beam string; 21. a lower chord; 211. a single ear pull rod joint; 212. a binaural pull rod joint; 213. a pin shaft; 214. a lock nut; 215. a rod body; 22. a brace rod; 3. a prestressing force applying device; 4. the support is opposite; 5. a gusset; 6. a column; 7. joist.
Detailed Description
In order to make the above objects, features and advantages of the present application more comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is, however, susceptible of embodiment in many other forms than those described herein and similar modifications can be made by those skilled in the art without departing from the spirit of the application, and therefore the application is not to be limited to the specific embodiments disclosed below.
In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present application.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless explicitly defined otherwise.
In this application, unless specifically stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.
In this application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Examples
The embodiment provides an urban complex environment all-steel structure deep foundation pit supporting system, which comprises a horizontal supporting structure for providing supporting force for the horizontal direction of a foundation pit and a vertical supporting structure for providing vertical supporting force for the horizontal supporting structure, as shown in figures 1-3.
The horizontal supporting structure comprises an upper chord beam 1, an in-beam support, a beam string beam 2 and a prestress applying device 3, wherein the upper chord beam 1 surrounds the inner wall of a foundation pit to form a frame type closed structure, a plurality of in-beam supports are arranged in the frame type closed structure formed by the upper chord beam 1, the beam string beam 2 is arranged between two adjacent in-beam supports, the prestress applying device 3 is arranged at the contact ends of the in-beam supports and the beam string beam 2 and the upper chord beam 1, prestress is applied to key parts, the rigidity of a member is improved, and the effects of reducing steel consumption and increasing excavation space are achieved.
In this embodiment, the beam internal support is used for providing a part of horizontal supporting force for the upper chord beam 1, and comprises a pair of supports 4 and a corner brace 5, wherein the pair of supports 4 are arranged between two opposite sides of the frame type closed structure of the upper chord beam 1, and the corner brace 5 is arranged between included angles formed by two adjacent sides of the upper chord beam 1.
As shown in fig. 4, the beam string 2 includes a lower chord member 21 and a brace 22, a plurality of lower chord members 21 are connected end to form an arc structure with an opening facing the upper chord member 1, two ends of the arc structure are connected with the upper chord member 1 through anchor nodes, a plurality of brace 22 are disposed inside the arc structure, one ends of the brace 22 are connected with connection points between adjacent lower chord members 21, and the other ends of the brace 22 are connected with the upper chord member 1 through a prestress applying device 3. The consumption of a supporting system is effectively reduced by the aid of the beam string 2, a large-span prestress space structure system is formed by the beam string 2 steel supporting combination mode, and the characteristics of high rigidity, small deformability and convenience in earth excavation of the beam string 2 are fully exerted.
As shown in fig. 5, the lower chord member 21 includes a single-lug pull rod joint 211, a double-lug pull rod joint 212, a pin shaft 213, a lock nut 214, and a rod body 215, one ends of the single-lug pull rod joint 211 and the double-lug pull rod joint 212 are connected with an end of the rod body 215 through the lock nut 214, and adjacent lower chord members 21 are connected with each other through the pin shaft 213 by passing through the joint ends of the single-lug pull rod joint 211 and the double-lug pull rod joint 212.
In this embodiment, the anchor nodes include an outer anchor node and an inner anchor node, which are respectively disposed at one end of the arc structure. As shown in fig. 6, the outer anchor node includes a fixing device of a sleeve, one end of the sleeve passes through the upper chord beam 1 and then is connected with the fixing device, and the other end of the sleeve is connected with the beam string 2. As shown in fig. 7, the inner anchor node comprises an adjusting bracket, a sleeve and a spiral fixing piece, the adjusting bracket is arranged on the inner side of the upper chord beam 1, one end of the sleeve penetrates through the adjusting bracket and is fixed in the upper chord beam 1, and the spiral fixing piece is arranged in the upper chord beam 1 and is connected with the sleeve.
The vertical supporting structure is arranged below the horizontal supporting structure and comprises a stand column 6 and a joist 7, wherein the stand column 6 is arranged below the beam string 2, the pair of struts 4 and the corner brace 5, and the joist 7 is arranged between the stand column 6 and the beam string 2 or the pair of struts 4 or the corner brace 5.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples only represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the claims. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application is to be determined by the claims appended hereto.
Claims (6)
1. The utility model provides an urban complex environment all steel construction deep basal pit support system which characterized in that includes:
the horizontal support structure comprises an upper chord beam (1), a beam inner support, a tension chord beam (2) and a prestress applying device (3), wherein the upper chord beam (1) is arranged around the inner wall of a foundation pit, a plurality of the beam inner supports are arranged in the upper chord beam (1), the tension chord beam (2) is arranged between two adjacent beam inner supports, and the prestress applying device (3) is arranged at the contact ends of the beam inner supports and the tension chord beam (2) and the upper chord beam (1);
and the vertical supporting structure is arranged below the horizontal supporting structure.
2. The deep foundation pit supporting system with the full steel structure for the urban complex environment according to claim 1, wherein the beam inner support comprises a pair of supports (4) and a gusset (5), the pair of supports (4) are arranged between two opposite sides of the upper chord beam (1), and the gusset (5) is arranged between two adjacent sides of the upper chord beam (1).
3. The deep foundation pit supporting system with the full steel structure in the urban complex environment according to claim 1, wherein the tension chord member (2) comprises a lower chord member (21) and supporting rods (22), a plurality of the lower chord members (21) are connected end to form an arc-shaped structure, two ends of the arc-shaped structure are connected with the upper chord member (1) through anchor nodes, the supporting rods (22) are arranged on the inner side of the arc-shaped structure, one ends of the supporting rods are connected with the lower chord member (21), and the other ends of the supporting rods are connected with the upper chord member (1) through prestress applying devices (3).
4. A deep foundation pit supporting system of an all-steel structure in a complex urban environment according to claim 3, wherein the anchor nodes comprise an outer anchor node and an inner anchor node.
5. A deep foundation pit supporting system with an all-steel structure in a complex urban environment according to claim 3, wherein the lower chords (21) comprise a single-lug pull rod joint (211), a double-lug pull rod joint (212), a pin shaft (213), a locking nut (214) and a rod body (215), one ends of the single-lug pull rod joint (211) and the double-lug pull rod joint (212) are connected with the end of the rod body (215) through the locking nut (214), and the joint ends of the adjacent lower chords (21) through the single-lug pull rod joint (211) and the double-lug pull rod joint (212) are connected with each other through the pin shaft (213).
6. The deep foundation pit supporting system with the full steel structure in the urban complex environment according to claim 1, wherein the vertical supporting structure comprises a stand column (6) and a joist (7), the stand column (6) is arranged below the horizontal supporting structure, and the joist (7) is arranged between the stand column (6) and the horizontal supporting structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322299955.9U CN220666248U (en) | 2023-08-25 | 2023-08-25 | Deep foundation pit supporting system with all-steel structure in urban complex environment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322299955.9U CN220666248U (en) | 2023-08-25 | 2023-08-25 | Deep foundation pit supporting system with all-steel structure in urban complex environment |
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| CN220666248U true CN220666248U (en) | 2024-03-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118148157A (en) * | 2024-05-09 | 2024-06-07 | 上海巨鲲科技有限公司 | Foundation pit beam string structure and assembly method |
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- 2023-08-25 CN CN202322299955.9U patent/CN220666248U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118148157A (en) * | 2024-05-09 | 2024-06-07 | 上海巨鲲科技有限公司 | Foundation pit beam string structure and assembly method |
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