CN220080030U - Surrounding purlin structure combining permanently with temporarily - Google Patents
Surrounding purlin structure combining permanently with temporarily Download PDFInfo
- Publication number
- CN220080030U CN220080030U CN202321057232.1U CN202321057232U CN220080030U CN 220080030 U CN220080030 U CN 220080030U CN 202321057232 U CN202321057232 U CN 202321057232U CN 220080030 U CN220080030 U CN 220080030U
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- CN
- China
- Prior art keywords
- enclosing
- purlin
- wall
- underground space
- enclosing purlin
- Prior art date
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 14
- 239000010959 steel Substances 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 13
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 9
- 238000010276 construction Methods 0.000 claims description 8
- 229910001294 Reinforcing steel Inorganic materials 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
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
Landscapes
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The utility model belongs to a surrounding purlin structure with permanent combination for underground space development, which adopts the technical scheme that: the enclosing purlin is closely attached to the enclosing structure, and reserved wall sections of the outer wall of the underground space are respectively arranged above and below the enclosing purlin; enclosing purlin and reserving wall section and pouring and forming wholly, reserving wall section is interior to set up the reinforcing bar and plugging into the ware, and the one end and the enclosing purlin of reinforcing bar plugging into the ware are fixed. The end of the reserved wall section is inserted into a water stop steel plate. Waterproof coiled materials of an underground space outer wall are paved on the side surface of the enclosing structure facing the enclosing purlin. And a reinforced waterproof coiled material is additionally arranged between the waterproof coiled material and the reserved wall section. The enclosing purlin structure combining permanently and temporarily ensures the safety of the foundation pit and meets the requirements of water resistance and stress of the outer wall structure, thereby meeting the requirements of underground space development.
Description
Technical Field
The utility model belongs to the field of underground space development, and particularly relates to an enclosing purlin structure for combining a permanent use stage and a temporary support use stage, which can be widely applied to underground space development.
Background
In the development process of the underground space, a temporary support structure is often arranged in a foundation pit, after earth excavation is completed, the underground structure is constructed layer by layer, the internal temporary support structure is removed, and therefore the development of the whole underground space is completed.
Under normal conditions, the temporary support structure and the permanent use stage structural member are mutually independent, and after the temporary support structure is removed, the permanent stage structural member is re-constructed, so that the integrity and the waterproof reliability of the permanent stage structural member are ensured. However, the span of the enclosure structure is overlarge due to the support disassembly stage, and the stress requirement cannot be met; or in the engineering of deep and large cylindrical foundation pit, the difficulty of dismantling the round enclosing purlin is extremely high due to extremely large height of the inner space, and the great potential safety hazard exists.
Disclosure of Invention
The utility model provides a permanently combined enclosing purlin structure, which solves the construction problem of an underground space structure and ensures the safety of a foundation pit under the condition that the stress state of an enclosing structure is not changed.
The technical scheme of the utility model is as follows: the enclosing purlin structure is characterized in that the enclosing purlin is closely attached to an enclosing structure, and reserved wall sections of an outer wall of an underground space are respectively arranged above and below the enclosing purlin; enclosing purlin and reserving wall section and pouring and forming wholly, reserving wall section is interior to set up the reinforcing bar and plugging into the ware, and the one end and the enclosing purlin of reinforcing bar plugging into the ware are fixed.
Based on the technical characteristics: the end of the reserved wall section is inserted into a water stop steel plate.
Based on the technical characteristics: waterproof coiled materials of an underground space outer wall are paved on the side surface of the enclosing structure facing the enclosing purlin.
Based on the technical characteristics: and a reinforced waterproof coiled material is additionally arranged between the waterproof coiled material and the reserved wall section.
Based on the technical characteristics: the rebar connector may be replaced with a connecting rebar.
The basic concept of the utility model is as follows: setting the cross section size of an enclosing purlin according to the stress requirement of a foundation pit enclosure structure, wherein the enclosing purlin is generally a reinforced concrete beam; the strength grade, durability and the like of the concrete are determined according to the requirements of the permanent use stage. When the enclosing purlin is constructed, water stop steel plates, water stop bars and connecting steel bars or connectors of the reserved underground space outer wall structure are arranged on two sides of the reserved wall section above and below the enclosing purlin. The specification, the size and the number of the water stopping steel plates, the water stopping bars and the connecting steel bars can be comprehensively determined according to the thickness and the stress of the outer wall structure.
The permanent combination of the purlin structure ensures the safety of the foundation pit and meets the requirements of water resistance and stress of the outer wall structure, thereby meeting the requirements of underground space development.
Drawings
Figure 1 is a schematic view of an permanently bonded purlin of the present utility model.
The reference numerals in the figures are intended to be: a building enclosure 1; enclosing purlin 2; reserving a wall section 3; a waterproof roll 4A; reinforcing waterproof coiled materials 4B; a water stop steel plate 5; a reinforcing bar connector 6.
Detailed Description
The following describes the embodiments of the present utility model in further detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present utility model and are not intended to be limiting.
In the description of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Furthermore, in the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.
According to the utility model, by arranging the water stop bars and the reserved steel bars or the connector, the surrounding purlin or the inner temporary support structure is not dismantled under the condition that the enclosure structure is stressed, the smooth construction of the underground space outer wall is ensured, and the requirements of foundation pit safety and the stress and waterproof requirements of the underground space outer wall in the permanent use stage are met. The specific description below refers to the accompanying drawings:
as shown in fig. 1, the enclosing purlin 2 is arranged closely to the enclosing structure 1, and the enclosing purlin 2 is a reinforced concrete beam. The cross section size of the enclosing purlin 2 is determined according to the stress requirements of the underground space outer wall structure and the temporary support structure in the permanent use stage; and determining the reinforcement bars of the enclosing purlin 2 according to the stress requirements of the temporary supporting structure. Before the construction of the enclosing purlin 2, firstly, a waterproof coiled material 4A of an outer wall of an underground space is paved on the inner side of the enclosing structure 1, and then, a reinforcing waterproof coiled material 4B is paved in the waterproof coiled material 4A. When the enclosing purlin 2 is constructed, a reserved wall section 3 of an outer wall of an underground space is constructed up and down respectively, and a reinforcing steel bar connector 6 and a water stop steel plate 5 or a water stop strip of the outer wall of the underground space are reserved in the reserved wall section 3. Determining the number and specification of reserved reinforcing steel bar connectors 6 according to the stress requirements of the underground space outer wall structure in the permanent use stage; and determining the water stop steel plate 5 according to the waterproof requirement of the outer wall of the underground space.
The utility model solves the problems of waterproof, stress and construction of the outer wall structure of the underground space while ensuring the safety of the foundation pit. The enclosing purlin structure is not dismantled, the stress state of the enclosing structure is not changed, and the safety of the foundation pit is ensured; by means of measures such as water stop bars, reserved steel bars and the like, the waterproof and stress-bearing requirements of the underground space outer wall structure are met.
The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and substitutions can be made by those skilled in the art without departing from the technical principles of the present utility model, and these modifications and substitutions should also be considered as being within the scope of the present utility model.
Claims (5)
1. A permanently bonded enclosing purlin structure, characterized by: the enclosing purlin (2) is closely attached to the enclosing structure (1), and reserved wall sections (3) of the outer wall of the underground space are respectively arranged above and below the enclosing purlin (2); enclosing purlin (2) with reserve wall section (3) are pour and are formed wholly, set up reinforcing bar connector (6) in reserve wall section (3), the one end of reinforcing bar connector (6) with enclosing purlin (2) is fixed.
2. The permanently bonded purlin construction of claim 1 wherein: the end part of the reserved wall section (3) is inserted with a water stop steel plate (5) or a water stop strip.
3. A permanently bonded purlin construction in accordance with claim 1 wherein: waterproof coiled materials (4A) of the underground space outer wall are paved on the side surface of the enclosing structure (1) facing the enclosing purlin (2).
4. A permanently bonded purlin construction in accordance with claim 3 wherein: and a reinforced waterproof coiled material (4B) is additionally arranged between the waterproof coiled material (4A) and the reserved wall section (3).
5. A permanently bonded purlin construction in accordance with claim 1 wherein: the steel bar connector (6) can be replaced by connecting steel bars.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321057232.1U CN220080030U (en) | 2023-05-06 | 2023-05-06 | Surrounding purlin structure combining permanently with temporarily |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321057232.1U CN220080030U (en) | 2023-05-06 | 2023-05-06 | Surrounding purlin structure combining permanently with temporarily |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220080030U true CN220080030U (en) | 2023-11-24 |
Family
ID=88818619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321057232.1U Active CN220080030U (en) | 2023-05-06 | 2023-05-06 | Surrounding purlin structure combining permanently with temporarily |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220080030U (en) |
-
2023
- 2023-05-06 CN CN202321057232.1U patent/CN220080030U/en active Active
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