CN212270951U - Non-eccentric support changing system for deep foundation pit floor slab missing area - Google Patents
Non-eccentric support changing system for deep foundation pit floor slab missing area Download PDFInfo
- Publication number
- CN212270951U CN212270951U CN202020337742.4U CN202020337742U CN212270951U CN 212270951 U CN212270951 U CN 212270951U CN 202020337742 U CN202020337742 U CN 202020337742U CN 212270951 U CN212270951 U CN 212270951U
- Authority
- CN
- China
- Prior art keywords
- plates
- stiffening
- plate
- rectangular
- transverse
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Building Environments (AREA)
Abstract
The utility model discloses a no eccentric system that props that trades for deep basal pit floor disappearance region, including steel corbel, built-in fitting and trade and prop the member, the built-in fitting sets up in major structure floor and floor boundary beam inside, the steel corbel passes through the built-in fitting and is connected with major structure floor and floor boundary beam, trade the vaulting pole piece top on the side of steel corbel, and trade the axle center of vaulting pole piece and align with the floor central line, the steel corbel comprises bed plate, pendent shrouding, medium plate, vertical rectangle stiffening plate, vertical triangle stiffening plate, horizontal rectangle stiffening plate one, horizontal rectangle stiffening plate two, horizontal rectangle stiffening plate three, horizontal open hole stiffening plate and horizontal triangle stiffening plate; the utility model discloses a set up the steel corbel on the regional floor boundary beam upper portion of basement floor disappearance, make the axle center of trading the vaulting pole piece align with the floor center, be about to trade vaulting pole piece axle center and align at the rigidity center of thickness direction with the major structure floor to form the eccentric atress system that props of trading of no axial force.
Description
Technical Field
The utility model belongs to the technical field of the building, concretely relates to it props system to trade to be used for deep basal pit floor disappearance regional no off-centre.
Background
In deep foundation pit engineering, often "horizontal floor disappearance region", for example basement ramp region, large-scale stair, large-scale elevartor shaft region etc. these regions are if setting up by foundation ditch edge, because the floor is opened the hole interval and can't satisfy foundation ditch support requirement, consequently need set up "floor disappearance region and trade the braced system. The 'floor slab missing area support replacing system' is that the horizontal floor slab missing area is combined with a corresponding newly-built floor slab system through a support replacing rod piece system to bear the water and soil pressure outside the pit, so that the foundation pit engineering can still keep safe and stable after the inner support of the corresponding area is removed.
The support changing system for the missing area of the foundation pit floor slab relates to the inner force redistribution of the foundation pit in the support dismantling stage, and realizes the ordered transmission of water and soil pressure from the horizontal support to the main structure floor slab through the support changing system, so that the main structure floor slab and the support changing system gradually replace the corresponding foundation pit support system. The safety of foundation pit engineering needs to be ensured, the requirements of a main structure of a building need to be met, and the safety of a newly-built building structure and components is ensured.
The conventional support changing method for the missing area of the floor slab in the current engineering comprises the following steps: the support rod replacing part is directly jacked between the envelope and the edge of the missing area of the floor slab (usually, the edge beam of the floor slab), and the figure is shown in figure 5; or after the floor boundary beam is reinforced, the support rod replacing part is jacked between the envelope structure and the floor boundary beam, as shown in figure 6.
In the method (figure 5) of directly jacking the support rod replacing piece between the envelope and the floor boundary beam, because the general section of the boundary beam of the main structure is smaller, and because the boundary beam mainly bears vertical force, the reinforcing bars on the left side and the right side of the section of the boundary beam are fewer, and the section and the reinforcing bars of the boundary beam cannot meet the requirement of bearing horizontal water and soil pressure. As a result, damage to the floor edge beams sometimes occurs.
The method of reinforcing the floor edge beam is also commonly adopted in engineering (figure 6), namely, after the section and the reinforcing bars of the floor edge beam are enlarged and reinforced, the support-replacing rod piece is jacked between the envelope structure and the reinforced floor edge beam so as to avoid the condition of damaging the main structure, after the support replacement is finished, the enlarged section with extra amount is chiseled, and the enlarged section is permanently reserved without chiseling. However, when the enlarged beam cross section is chiseled, constructors need to do overhead operation and head-up operation, construction is difficult, the situations of material falling, smashing, injury and the like are easily generated, and the main structure beam can be damaged in the chiseling process; if the enlarged section of the edge beam is not chiseled, the influence on the building attractiveness, later-stage pipeline matching and hanging and the like can be generated due to the large section of the edge beam.
In addition, in the deep foundation pit engineering, the stay replacing component generally adopts steel pipes or section steel, and because the thickness of the floor slab is small (generally 100-150 mm), and the section of the stay replacing component is large (the section of the steel pipe is generally phi 609mm, and the section of the section steel is also generally larger than 150mm), when the stay replacing component is propped against the side beam and the floor slab, the center of the stay replacing component is not aligned with the thickness center of the floor slab, namely the axial force of the stay replacing component is eccentric relative to the floor slab, and the stay replacing component generates eccentric bending moment on the floor slab, as shown in fig. 5 and fig. 6, the axial force eccentricity can damage the side beam of the structure on one hand, and on the other hand, the larger horizontal rigidity of the floor slab cannot be fully utilized to resist the.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a no eccentric system that props that trades for deep basal pit floor disappearance is regional to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a no eccentric system that props that trades for deep basal pit floor disappearance is regional, includes steel corbel, built-in fitting and trades and prop the member, the built-in fitting sets up inside major structure floor and floor boundary beam, the steel corbel passes through the built-in fitting and is connected with major structure floor and floor boundary beam, trade the vaulting pole piece top on the side of steel corbel, and trade the axle center of vaulting pole piece and align with the floor central line, the steel corbel comprises bed plate, pendent shrouding, medium plate, vertical rectangle stiffening plate, vertical triangle stiffening plate, horizontal rectangle stiffening plate one, horizontal rectangle stiffening plate two, horizontal rectangle stiffening plate three, horizontal open hole stiffening plate and horizontal triangle stiffening plate, constitutes through welded connection between the part of steel corbel.
Preferably, the bed plate is the rectangle steel sheet, and the bed plate is located the bottommost of steel bracket, is provided with the bolt hole on the bed plate, flagging formula shrouding is the rectangle steel sheet, and flagging formula shrouding is located the tip of bed plate and perpendicular with the bed plate, the medium plate is the rectangle steel sheet, and the medium plate is located the middle part of bed plate and perpendicular with the bed plate, vertical rectangle stiffening plate is the rectangle steel sheet, and vertical rectangle stiffening plate vertical interval arrangement is between flagging formula shrouding and medium plate, and the bottom and the bed plate of vertical rectangle stiffening plate are connected, vertical rectangle stiffening plate is all perpendicular with flagging formula shrouding, medium plate, bed plate, vertical triangle stiffening plate is the triangle-shaped steel sheet of bight cutting, and vertical triangle-shaped stiffening plate vertical interval arrangement is perpendicular with medium plate, bed plate, and vertical triangle stiffening plate aligns with vertical rectangle stiffening plate.
Preferably, the first transverse rectangular stiffening plate and the first transverse holed stiffening plate are rectangular steel plates, the first transverse rectangular stiffening plate and the first transverse holed stiffening plate are both transversely arranged between the downward hanging type sealing plate and the middle plate, the first transverse rectangular stiffening plate is perpendicular to the vertical rectangular stiffening plate, the downward hanging type sealing plate and the middle plate, the first transverse rectangular stiffening plate is parallel to the base plate, the first transverse holed stiffening plate is perpendicular to the vertical rectangular stiffening plate, the downward hanging type sealing plate and the middle plate, the first transverse rectangular stiffening plate is parallel to the base plate, the first transverse rectangular stiffening plate and the first transverse holed stiffening plate are divided into an upper layer and a lower layer, each layer comprises the first two transverse rectangular stiffening plates and the two transverse holed stiffening plates, and the transverse holed stiffening plates are rectangular steel plates provided with oval holes or rectangular holes.
Preferably, the second transverse rectangular stiffening plate is a rectangular steel plate, the second transverse rectangular stiffening plate is horizontally arranged on one side of the middle plate, the second transverse rectangular stiffening plate is vertically connected with the middle plate and the vertical triangular stiffening plate, the third transverse rectangular stiffening plate is arranged in the same manner as the second transverse rectangular stiffening plate, the third transverse rectangular stiffening plate is positioned at the lower part of the second transverse rectangular stiffening plate, and the horizontal transverse triangular stiffening plates are arranged on both sides of the second transverse rectangular stiffening plate and both sides of the third transverse rectangular stiffening plate.
Preferably, the upper half part of the sagging type sealing plate is connected with each stiffening plate, and the lower half part of the sagging type sealing plate is attached to the side edge of the floor boundary beam.
Preferably, the embedded part comprises an embedded steel plate and an embedded bolt, and the support rod replacing part is a steel pipe or section steel.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a floor boundary beam upper portion in basement floor disappearance region sets up the steel corbel, makes the axle center and the floor center that trade the vaulting pole piece align, is about to trade vaulting pole piece axle center and aligns with the rigidity center of major structure floor in thickness direction to form the eccentric atress system that props of trading of no axial force, the utility model discloses not only can make full use of the great horizontal rigidity of floor, form effectual level and trade and prop the system and undertake the outer soil pressure of pit, can also ensure simultaneously not causing destruction to major structure floor, floor boundary beam, this use novel need not to strengthen floor boundary beam cross-section, and use the removable shank of back steel after finishing, ensured making the beautifully succinct of major structure, the work of construction process constructor does not have high altitude construction and the operation of raising the head, but steel corbel recycle, green energy-conservation.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.
FIG. 1 is a schematic side view of a steel corbel of the present invention;
3 FIG. 3 2 3 is 3 a 3 schematic 3 view 3 of 3 a 3 steel 3 corbel 3 A 3- 3 A 3 of 3 the 3 present 3 invention 3 in 3 a 3 top 3 view 3; 3
FIG. 3 is a schematic top view of a steel corbel B-B of the present invention;
FIG. 4 is a schematic view of the connection structure of the steel corbel and the floor slab boundary beam of the main structure of the present invention;
FIG. 5 is a schematic view of a prior art method of directly supporting a bracing change member between a building envelope and an edge of a floor slab-missing area (typically a floor slab edge beam);
fig. 6 is a schematic view of a method for jacking a support-replacing rod between a building envelope and a floor edge beam after the floor edge beam is reinforced in the prior art.
In the figure: 1. steel corbels; 2. embedding parts; 3. a middle plate; 4. a pendent seal plate; 5. a base plate; 6. A vertical triangular stiffening plate; 7. a second transverse rectangular stiffening plate; 8. a transverse triangular stiffening plate; 9. a first transverse rectangular stiffening plate; 10. a vertical rectangular stiffening plate; 12. a transverse rectangular stiffening plate III; 13. transversely make a hole stiffening plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or through the communication between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a do not have eccentric system of propping that trades for deep basal pit floor disappearance region, including steel corbel 1, built-in fitting 2 and trade the vaulting pole piece, built-in fitting 2 sets up in major structure floor and floor boundary beam inside, steel corbel 1 passes through built-in fitting 2 and is connected with major structure floor and floor boundary beam, trade the vaulting pole piece and push up on the side of steel corbel 1, and trade the axle center of vaulting pole piece and align with the floor central line, steel corbel 1 comprises bed plate 5, pendent formula shrouding 4, medium plate 3, vertical rectangle stiffening plate 10, vertical triangle stiffening plate 6, horizontal rectangle stiffening plate one 9, horizontal rectangle stiffening plate two 7, horizontal rectangle stiffening plate three 12, horizontal trompil stiffening plate 13 and horizontal triangle stiffening plate 8, pass through welded connection between the part that constitutes steel corbel 1.
In this embodiment, preferably, the base plate 5 is a rectangular steel plate, the base plate 5 is located at the bottommost portion of the steel corbel 1, the base plate 5 is provided with bolt holes, the sagging type sealing plate 4 is a rectangular steel plate, the sagging type sealing plate 4 is located at the end portion of the base plate 5 and perpendicular to the base plate 5, the middle plate 3 is a rectangular steel plate, the middle plate 3 is located in the middle of the base plate 5 and perpendicular to the base plate 5, the vertical rectangular stiffening plates 10 are rectangular steel plates, the vertical rectangular stiffening plates 10 are vertically arranged between the sagging type sealing plate 4 and the middle plate 3 at intervals, the bottom of the vertical rectangular stiffening plate 10 is connected with the base plate 5, the vertical rectangular stiffening plate 10 is perpendicular to the drooping type sealing plate 4, the middle plate 3 and the base plate 5, the vertical triangular stiffening plate 6 is a triangular steel plate with cut corners, the vertical triangular stiffening plates 6 are vertically arranged at intervals and perpendicular to the middle plate 3 and the base plate 5, and the vertical triangular stiffening plate 6 is aligned with the vertical rectangular stiffening plate 10.
In this embodiment, preferably, the first horizontal rectangular stiffening plate 9 and the second horizontal holed stiffening plate 13 are both rectangular steel plates, the first horizontal rectangular stiffening plate 9 and the second horizontal holed stiffening plate 13 are both horizontally arranged between the downward hanging type sealing plate 4 and the middle plate 3, the first horizontal rectangular stiffening plate 9 is perpendicular to the vertical rectangular stiffening plate 10, the downward hanging type sealing plate 4 and the middle plate 3, the first horizontal rectangular stiffening plate 9 is parallel to the base plate 5, the second horizontal holed stiffening plate 13 is perpendicular to the vertical rectangular stiffening plate 10, the downward hanging type sealing plate 4 and the middle plate 3, the first horizontal rectangular stiffening plate 9 is parallel to the base plate 5, the first horizontal rectangular stiffening plate 9 and the second horizontal holed stiffening plate 13 are divided into upper and lower layers, each layer includes the first two horizontal rectangular stiffening plates 9 and the two horizontal holed stiffening plates 13, and the second horizontal holed stiffening plate 13 is a rectangular steel plate provided with an oval stiffening opening or a rectangular opening.
In this embodiment, preferably, the second horizontal rectangular stiffening plate 7 is a rectangular steel plate, the second horizontal rectangular stiffening plate 7 is horizontally disposed on one side of the middle plate 3, the second horizontal rectangular stiffening plate 7 is vertically connected with the middle plate 3 and the vertical triangular stiffening plate 6, the third horizontal rectangular stiffening plate 12 is disposed in the same manner as the second horizontal rectangular stiffening plate 7, the third horizontal rectangular stiffening plate 12 is located at the lower portion of the second horizontal rectangular stiffening plate 7, and the horizontal triangular stiffening plates 8 are disposed on both sides of the second horizontal rectangular stiffening plate 7 and both sides of the third horizontal rectangular stiffening plate 12.
In this embodiment, preferably, the upper half part of the sagging type sealing plate 4 is connected with each stiffening plate, and the lower half part of the sagging type sealing plate 4 is attached to the side edge of the floor edge beam.
In this embodiment, preferably, the embedded part 2 includes an embedded steel plate and an embedded bolt, and the strut member is a steel pipe or a section steel.
The utility model discloses a theory of operation and use flow: the utility model not only can fully utilize the larger horizontal rigidity of the floor slab to form an effective horizontal bracing-changing system to bear the water and soil pressure outside the pit, but also can simultaneously ensure that the floor slab and the floor slab boundary beam of the main structure are not damaged, the novel structure does not need to enlarge and strengthen the section of the floor slab boundary beam, and the steel corbel 1 after the use is finished, ensures the beauty of the main structure, and constructors do not have high-altitude operation and head-raising operation, the steel corbel 1 can be recycled, and is green and energy-saving.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a no eccentric system that props that trades for deep basal pit floor disappearance is regional, includes steel corbel (1), built-in fitting (2) and trades and prop the member, its characterized in that: built-in fitting (2) set up inside major structure floor and floor boundary beam, steel corbel (1) is connected with major structure floor and floor boundary beam through built-in fitting (2), it pushes up on the side of steel corbel (1) to change the vaulting pole piece, and the axle center of changing the vaulting pole piece aligns with the floor central line, steel corbel (1) comprises bed plate (5), pendent formula shrouding (4), medium plate (3), vertical rectangle stiffening plate (10), vertical triangle stiffening plate (6), horizontal rectangle stiffening plate (9), horizontal rectangle stiffening plate two (7), horizontal rectangle stiffening plate three (12), horizontal open a hole stiffening plate (13) and horizontal triangle stiffening plate (8), constitutes through welded connection between the part of steel corbel (1).
2. The non-eccentric support changing system for the deep foundation pit floor slab missing area according to the claim 1, characterized in that: the base plates (5) are rectangular steel plates, the base plates (5) are located at the bottommost part of the steel corbel (1), bolt holes are formed in the base plates (5), the sagging type sealing plates (4) are rectangular steel plates, the sagging type sealing plates (4) are located at the end parts of the base plates (5) and perpendicular to the base plates (5), the middle plates (3) are rectangular steel plates, the middle plates (3) are located in the middle parts of the base plates (5) and perpendicular to the base plates (5), the vertical rectangular stiffening plates (10) are rectangular steel plates, the vertical rectangular stiffening plates (10) are vertically arranged between the sagging type sealing plates (4) and the middle plates (3) at intervals, the bottoms of the vertical rectangular stiffening plates (10) are connected with the base plates (5), the vertical rectangular stiffening plates (10) are perpendicular to the sagging type sealing plates (4), the middle plates (3) and the base plates (5), and the vertical triangular stiffening plates (6) are triangular steel plates cut at corner parts, the vertical triangular stiffening plates (6) are vertically arranged at intervals and are perpendicular to the middle plate (3) and the base plate (5), and the vertical triangular stiffening plates (6) are aligned with the vertical rectangular stiffening plates (10).
3. The non-eccentric support changing system for the deep foundation pit floor slab missing area according to the claim 1, characterized in that: the transverse rectangular stiffening plates (9) and the transverse holed stiffening plates (13) are rectangular steel plates, the transverse rectangular stiffening plates (9) and the transverse holed stiffening plates (13) are transversely arranged between the downward hanging type sealing plates (4) and the middle plates (3), the transverse rectangular stiffening plates (9) are perpendicular to the vertical rectangular stiffening plates (10), the downward hanging type sealing plates (4) and the middle plates (3), the transverse rectangular stiffening plates (9) are parallel to the base plates (5), the transverse holed stiffening plates (13) are perpendicular to the vertical rectangular stiffening plates (10), the downward hanging type sealing plates (4) and the middle plates (3), the transverse rectangular stiffening plates (9) are parallel to the base plates (5), the transverse rectangular stiffening plates (9) and the transverse holed stiffening plates (13) are divided into an upper layer and a lower layer, each layer comprises two transverse rectangular stiffening plates (9) and two transverse holed stiffening plates (13), the transverse hole-forming stiffening plate (13) is a rectangular steel plate provided with an oval hole or a rectangular hole.
4. The non-eccentric support changing system for the deep foundation pit floor slab missing area according to the claim 1, characterized in that: the transverse rectangular stiffening plates (7) are rectangular steel plates, the transverse rectangular stiffening plates (7) are horizontally arranged on one side of the middle plate (3), the transverse rectangular stiffening plates (7) are vertically connected with the middle plate (3) and the vertical triangular stiffening plates (6), the arrangement mode of the transverse rectangular stiffening plates (12) is the same as that of the transverse rectangular stiffening plates (7), the transverse rectangular stiffening plates (12) are located on the lower portions of the transverse rectangular stiffening plates (7), and the two sides of the transverse rectangular stiffening plates (7) and the two sides of the transverse rectangular stiffening plates (12) are both provided with horizontal transverse triangular stiffening plates (8).
5. The non-eccentric support changing system for the deep foundation pit floor slab missing area according to the claim 1, characterized in that: the upper half part of the sagging sealing plate (4) is connected with each stiffening plate, and the lower half part of the sagging sealing plate (4) is attached to the side edge of the floor boundary beam.
6. The non-eccentric support changing system for the deep foundation pit floor slab missing area according to the claim 1, characterized in that: the embedded part (2) comprises an embedded steel plate and an embedded bolt, and the support rod replacing component is a steel pipe or section steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020337742.4U CN212270951U (en) | 2020-03-17 | 2020-03-17 | Non-eccentric support changing system for deep foundation pit floor slab missing area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020337742.4U CN212270951U (en) | 2020-03-17 | 2020-03-17 | Non-eccentric support changing system for deep foundation pit floor slab missing area |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212270951U true CN212270951U (en) | 2021-01-01 |
Family
ID=73874305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020337742.4U Expired - Fee Related CN212270951U (en) | 2020-03-17 | 2020-03-17 | Non-eccentric support changing system for deep foundation pit floor slab missing area |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212270951U (en) |
-
2020
- 2020-03-17 CN CN202020337742.4U patent/CN212270951U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103912008B (en) | Unilateral formwork structure and construction method thereof | |
| KR19990072014A (en) | Lift-up method for building buildings from above to the ground | |
| CN108561158B (en) | Quick assembly type tunnel primary support structure and construction method | |
| CN209873846U (en) | Can have enough to meet need construction elevator basis and return reinforcing apparatus | |
| CN106760460A (en) | Suspension scaffold and its installation method for setting up scaffold in prefabricated construction | |
| CN110306774A (en) | A kind of installation method and device of spigot-and-socket builder's jack | |
| CN110374349A (en) | A kind of impaired armored concrete cylinder underpins processing unit and its application method | |
| CN212270951U (en) | Non-eccentric support changing system for deep foundation pit floor slab missing area | |
| CN110409378A (en) | Repair method of not cutting off the water for large channel | |
| CN107882234A (en) | A kind of connecting node between the vertical member and floor of plate-column structure | |
| CN104947706B (en) | A kind of narrow edge of a wing steel column expands aerofoil profile suspension column and construction technology thereof | |
| CN112049235B (en) | High-altitude large-span cantilever structure construction platform and method | |
| CN208167484U (en) | The steel construction overline bridge being easily installed | |
| CN207143746U (en) | Support beam template system under concrete support trestle plate | |
| CN211368731U (en) | A foundation ditch construction high strength supporting beam for construction | |
| CN110469130B (en) | Pipe truss girder and pipe truss column flange plate mounting die and mounting method | |
| CN104404967B (en) | Rigid frame posture internal support of foundation pit structure and construction method | |
| CN220318882U (en) | Jig frame for steel corridor curtain wall | |
| CN218990929U (en) | Hanging die supporting device | |
| CN203441075U (en) | Ground anchor for overhung scaffold | |
| CN220644285U (en) | Foundation pit steel support supporting device | |
| CN107806103A (en) | A kind of pattern foundation pit supporting structure steel truss shares system with assembled steel trestle column | |
| CN207739510U (en) | A kind of reinforced cold-bent pipe concrete column and structural system | |
| CN207277373U (en) | A kind of riding track being used in foundation pit construction | |
| CN206267039U (en) | A kind of jack support platform of hollow slab girder jack-up construction |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210101 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |