CN210216455U - Inclined support assembly of building envelope - Google Patents
Inclined support assembly of building envelope Download PDFInfo
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- CN210216455U CN210216455U CN201920893926.6U CN201920893926U CN210216455U CN 210216455 U CN210216455 U CN 210216455U CN 201920893926 U CN201920893926 U CN 201920893926U CN 210216455 U CN210216455 U CN 210216455U
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Abstract
The utility model provides an envelope's bearing diagonal subassembly relates to and counts enclosure support technical field. This envelope's bearing diagonal subassembly includes: the steel wedge block is welded and fixed with the triangular steel plate supporting seat through a steel base plate, the steel wedge block is connected with the steel support through a supporting end, the triangular steel plate supporting seat is fixed on the building envelope, and the section of the triangular steel plate supporting seat connected with the steel base plate is perpendicular to the axis of the steel support. The utility model discloses an envelope's bearing diagonal subassembly, simple structure, the construction of being convenient for to construction cost is lower, and it is effectual to strut, can stabilize to the excavation foundation ditch and strut.
Description
Technical Field
The utility model relates to an enclosure supports technical field, especially relates to an envelope's bearing diagonal subassembly.
Background
With the development of society, in order to meet the demand of urban development, more and more buildings are beginning to be developed into underground spaces, such as subways, underground commercial centers, underground parking lots and the like, and the underground structures are often accompanied by large-sized deep foundation pits. In the foundation pit supporting structure, a supporting structure is increasingly widely used.
Steel support stability is critically dependent on three factors: reliability and stability of the intermediate fulcrum; the stability of the movable end socket is supported; and supporting the stability of the wedge. In view of the above, there is no ideal diagonal bracing structure.
SUMMERY OF THE UTILITY MODEL
In view of this, the embodiment of the utility model provides an envelope's bearing diagonal subassembly, simple structure, the construction of being convenient for to construction cost is lower, and it is effectual to strut, can stabilize the support to the excavation foundation ditch.
To achieve the above object, according to one aspect of the embodiment of the present invention, an inclined support assembly for an enclosure structure is provided.
The utility model discloses envelope's bearing diagonal subassembly includes: the steel wedge block is welded and fixed with the triangular steel plate supporting seat through a steel base plate, the steel wedge block is connected with a steel support through a supporting end, and the triangular steel plate supporting seat is fixed on the building enclosure; and the section of the triangular steel plate supporting seat connected with the steel backing plate is vertical to the axis of the steel support.
Optionally, the support end is an adjustable end; and/or the length of the extending part of the loose end is less than 150 mm.
Optionally, the support end is welded with a reinforcing rod.
Optionally, the stiffening rods are 30a channel steel.
Optionally, the two ends of the steel support are provided with phi 16 steel bar hanging rings.
Optionally, the building envelope is provided with an embedded steel plate, and the triangular steel plate supporting seat is welded with the embedded steel plate.
An embodiment in the above-mentioned utility model has following advantage or beneficial effect: simple structure, the construction of being convenient for to construction cost is lower, and it is effectual to strut, can carry out firm support to the excavation foundation ditch. The cross section of the triangular steel plate supporting seat connected with the steel base plate is vertical to the axis of the steel support, so that the supporting strength of the triangular steel plate supporting seat can be improved.
Further effects of the above-mentioned non-conventional alternatives will be described below in connection with the embodiments.
Drawings
The accompanying drawings are included to provide a better understanding of the present invention and are not intended to constitute an undue limitation on the invention. Wherein:
figure 1 is a schematic view of a diagonal bracing assembly of a building envelope according to an embodiment of the invention;
FIG. 2 is a schematic diagram of hoisting or removing a steel support according to an embodiment of the present invention;
in the figure, 1-a building envelope; 2-a steel wedge block; 3-supporting steel; 4-a steel backing plate; 5-triangular steel plate supporting seats; 6, pre-burying a steel plate; 7-supporting the end head; 8-reinforcing rods.
Detailed Description
Exemplary embodiments of the invention are described below with reference to the accompanying drawings, in which various details of embodiments of the invention are included to assist understanding, and which are to be considered exemplary only. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the invention. Also, descriptions of well-known functions and constructions are omitted in the following description for clarity and conciseness.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
Fig. 1 is according to the utility model discloses an envelope's bearing diagonal subassembly's schematic diagram, as shown in fig. 1, the utility model discloses a confirm envelope's bearing diagonal subassembly mainly includes: a steel wedge block 2 and a triangular steel plate supporting seat 5. The steel wedge block 2 is welded and fixed with the triangular steel plate supporting seat 5 through the steel base plate 4, and the steel wedge block 2 is connected with the steel support 3 through the supporting end 7. The triangular steel plate support seat 5 is fixed on the envelope structure 1.
And the section of the triangular steel plate supporting seat 5 connected with the steel backing plate 4 is vertical to the axis of the steel support 3. The cross section of the triangular steel plate support seat 5 connected with the steel backing plate 4 is vertical to the axis of the steel support 3, so that the support strength of the triangular steel plate support seat can be improved.
Optionally, the support head 7 is a loose head. In the embodiment of the utility model, the length of the extending part of the adjustable end is less than 150 mm. If the length of the extending part of the loose end is more than 150mm and less than 300mm, reinforcing rods 8 can be welded on two sides of the supporting end 7 (after the prestress is applied). Wherein the reinforcing rod 8 is a 30a channel steel. If the length of the extending part of the loose end is more than 300mm, the middle pipe (200mm long) is erected and added in the middle of the support again.
Furthermore, phi 16 steel bar hanging rings are arranged at two ends of the steel support 3, so that the steel support can be conveniently hoisted. The steel bar hanging ring is connected to the enclosure structure through the steel wire rope to prevent falling, and meanwhile, the steel wedge blocks used for fine adjustment are connected in series to prevent falling.
And the building enclosure 1 is provided with an embedded steel plate 6, and the triangular steel plate support seat 5 is welded with the embedded steel plate 6. The stability of the diagonal bracing can be reinforced by the structure.
The excavation of the foundation pit is the key of control in engineering construction, and the speed of excavation and supporting of the foundation pit directly influences the deformation and safety of the enclosure, so that the protection of the surrounding environment is influenced. Furthermore, the structure of the support assembly can affect the speed of the support.
In order to shorten the unsupported exposure time of the foundation pit as much as possible and effectively control the deformation of the enclosure structure and the settlement of the ground outside the pit, the foundation pit can be excavated by adopting the theory principle of 'space-time effect' based on the inclined support assembly in the embodiment, namely 'earth excavation layering, blocking, unit dividing, symmetry, parallel, earth retaining and wall protecting, and the excavation and the support are finished in limited time'. The segmentation is that a 2m working surface is added according to structural segmentation (induced joint) to be used as an excavation segment, and the longitudinal overall gradient is controlled according to the ratio of more than 1: 3. Layering refers to taking the supporting bottom surface as a layered excavation bottom surface. The unit division means that the reinforced concrete support takes a single support as a unit, and the steel support takes two supports as a unit. The method comprises the following specific steps:
(1) in the construction process, in order to finish the manufacture of the bottom plate as soon as possible, the station excavation adopts the modes of layering and slope-releasing excavation, so that overlong and overhigh slope releasing is prevented.
(2) And supporting construction of reinforced concrete: after the unit excavation is carried out by taking the two supports as a unit, the steel supports are pre-supported immediately after the foundation pit is excavated to a certain depth, the safety of the foundation pit is ensured, and the temporary steel supports can be detached after the reinforced concrete supports reach the strength.
(3) The excavation is organized strictly according to the space-time effect principle, and is supported along with the excavation. And a support and stabilization system is reliably arranged in time strictly according to the design position, and support prestress is timely applied according to the design requirement.
Fig. 2 is according to the utility model discloses hoist and mount or demolish the schematic diagram of steel shotcrete, as shown in fig. 2, the steel shotcrete adopts the foundation ditch to assemble outward, and crawler crane hoists, adopts crawler crane and two loop wheel machines of car loop wheel machine to hoist the installation simultaneously when necessary.
For the erection of the steel support, after each section is excavated to the height of the support erection working condition in a layered mode, the support position is immediately released by measurement. The steel support is assembled and spliced into a steel support with one end fixed and one end movable according to the width of the standard section, the length is temporarily determined according to the width of the section, and the length can be finely adjusted through the steel wedge block. And applying steel support prestress by adopting an oil jack, symmetrically pressurizing the movable end step by step along two sides of the support, applying prestress accounting for 85% of the designed support shaft force until a pressure gauge is not obviously attenuated, and locking the steel support by adopting a specially-made steel wedge block.
When the steel support is assembled, the axis deviation is less than or equal to 2cm, and the bearing capacity of the support joint is ensured to meet the design requirement. When the steel support is connected, the bolts are symmetrically arranged and fastened in sequence. The end part of the steel support is provided with a phi 16 steel bar hanging ring which is connected on the building enclosure through a steel wire rope so as to prevent falling, and meanwhile, steel wedges for fine adjustment are also connected in series so as to prevent falling.
For the dismantling of the steel supports, after the concrete of the corresponding slab layer structure reaches the design strength, the steel supports can be dismantled according to the design requirement sequence. Specifically, a truck crane is used for supporting the steel support, a 200t jack is arranged at the movable end, axial force is applied until the steel wedge block is loosened, the steel wedge block is taken out, the steel wedge block is unloaded step by step until the steel wedge block is taken out, and then the support is hoisted.
The above detailed description does not limit the scope of the present invention. Those skilled in the art will appreciate that various modifications, combinations, sub-combinations, and substitutions can occur, depending on design requirements and other factors. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A bracing assembly for a building envelope, comprising:
a steel wedge block and a triangular steel plate supporting seat,
wherein the steel wedge block is welded and fixed with the triangular steel plate supporting seat through a steel base plate,
wherein the steel wedge block is connected with the steel support through a support end head,
wherein the triangular steel plate supporting seat is fixed on the enclosure structure, and
and the cross section of the triangular steel plate supporting seat connected with the steel base plate is vertical to the axis of the steel support.
2. A bracing assembly for a building envelope according to claim 1, wherein the bracing end is a loose end; and/or
The length of the flexible end head is less than 150 mm.
3. A bracing assembly for a building envelope according to claim 1, wherein reinforcing rods are welded to the support ends.
4. A bracing assembly for a building envelope according to claim 3 wherein the reinforcing bar is a 30a channel steel.
5. A bracing assembly for a building envelope according to claim 1 wherein the steel support is provided with phi 16 rebar slings at both ends.
6. An enclosure diagonal bracing assembly according to claim 1, wherein the enclosure is provided with a pre-buried steel plate, and the triangular steel plate support base is welded with the pre-buried steel plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920893926.6U CN210216455U (en) | 2019-06-14 | 2019-06-14 | Inclined support assembly of building envelope |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920893926.6U CN210216455U (en) | 2019-06-14 | 2019-06-14 | Inclined support assembly of building envelope |
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| CN210216455U true CN210216455U (en) | 2020-03-31 |
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| CN201920893926.6U Active CN210216455U (en) | 2019-06-14 | 2019-06-14 | Inclined support assembly of building envelope |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114319373A (en) * | 2021-12-07 | 2022-04-12 | 广州地铁设计研究院股份有限公司 | Vertical steel inclined strut joint structure capable of adapting to various angles and design method |
-
2019
- 2019-06-14 CN CN201920893926.6U patent/CN210216455U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114319373A (en) * | 2021-12-07 | 2022-04-12 | 广州地铁设计研究院股份有限公司 | Vertical steel inclined strut joint structure capable of adapting to various angles and design method |
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