CN218479176U - A outer frame post installation node for in reinforced concrete foundation ditch supports - Google Patents
A outer frame post installation node for in reinforced concrete foundation ditch supports Download PDFInfo
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- CN218479176U CN218479176U CN202222823899.XU CN202222823899U CN218479176U CN 218479176 U CN218479176 U CN 218479176U CN 202222823899 U CN202222823899 U CN 202222823899U CN 218479176 U CN218479176 U CN 218479176U
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- outer frame
- inner support
- installation pipe
- frame column
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Abstract
The utility model discloses an outer frame column installation node used in a reinforced concrete foundation pit support, which belongs to the technical field of deep foundation pit inner support construction, wherein a construction system comprises a foundation pit inner support, a pre-buried installation pipe, a main body outer frame column, a connecting support leg, an inner support haunched beam, a reinforcing plate, a U-shaped stirrup and a reinforcing steel bar; the embedded installation pipe is fixedly arranged in the foundation pit inner support; the main body outer frame column is arranged in the embedded installation pipe; the connecting support legs are arranged on the outer wall of the embedded installation pipe at intervals; the inner support haunch beams are arranged on the front side face and the rear side face of the foundation pit inner support; the reinforcing plate is fixedly arranged on the outer wall of the inner support haunched beam; two vertical ribs of the U-shaped stirrup are fixedly connected with the reinforcing plate and the embedded mounting pipe respectively; the reinforcing steel bar is fixedly arranged on the inner wall of the embedded installation pipe. The utility model discloses a pre-buried installation pipe provides the mounted position for main part frame post, simple structure, and construction process is few, has avoided main structure design and excavation supporting design change on a large scale, improves the efficiency of construction, has good economic benefits.
Description
Technical Field
The utility model belongs to the technical field of support construction in the deep basal pit, in particular to an outer frame post erection joint for in reinforced concrete foundation ditch supports.
Background
In dense urban centers with increasingly tense land, the development of large underground spaces by combining urban construction and transformation has become a necessity, such as multi-storey basements of high-rise buildings, underground railways and underground stations, underground roads, underground parking garages, underground streets, underground malls, underground warehouses, underground civil air defence and various underground civil and industrial facilities. The underground spaces are developed on an increasingly large scale, the depth of foundation pit support is increased, the deep and large foundation pits are usually located in the dense urban centers and are often close to buildings, traffic trunks, subway tunnels and various underground pipelines, the construction site is short, the construction conditions are complex, and the construction period is urgent. All this leads to increasing difficulties in the design and construction of foundation pit engineering.
When the position conflict exists between the column outer frame column of the frame-core tube structure and the foundation pit inner support, the design of a main structure and the design of a foundation pit support are changed in a large range in the prior art, so that the construction efficiency is reduced, the construction difficulty is increased, and the construction period is delayed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an outer frame post erection node for in reinforced concrete foundation ditch supports to there is the position conflict in outer frame post and the foundation ditch in solving above-mentioned background art and leads to the efficiency of construction low, the problem that the construction degree of difficulty is high.
In order to achieve the above object, the utility model provides a following technical scheme:
an outer frame column mounting node used in a reinforced concrete foundation pit support comprises a foundation pit inner support, a pre-buried mounting pipe, a main body outer frame column, a connecting support leg, an inner support haunch beam, a reinforcing plate, a U-shaped stirrup and a reinforcing steel bar; the embedded installation pipe is fixedly arranged in the foundation pit inner support; the main body outer frame column is arranged in the embedded installation pipe, and a gap is formed between the main body outer frame column and the embedded installation pipe; the connecting support legs are arranged on the outer wall of the embedded installation pipe at intervals; the inner support haunch beams are arranged on the front side surface and the rear side surface of the foundation pit inner support; the reinforcing plate is fixedly arranged on the outer wall of the inner support haunched beam; the U-shaped stirrups are arranged at intervals along the horizontal direction, and two vertical reinforcements of the U-shaped stirrups are respectively welded and connected with the outer wall of the reinforcing plate and the inner wall of the embedded installation pipe; the transverse ribs are attached to the top surface of the inner support of the foundation pit.
Furthermore, the center line of the embedded installation pipe is superposed with the center line of the main body outer frame column.
Furthermore, the supporting haunching beam is arranged corresponding to the embedded installation pipe, and the outer side edge of the supporting haunching beam, which is opposite to the embedded installation pipe, is a straight edge.
Further, the reinforcing plate is a steel plate.
Further, the connecting support legs are made of I-shaped steel.
Furthermore, the reinforcing steel bars are vertically welded on the inner walls of the left side and the right side of the embedded installation pipe at intervals.
Furthermore, lattice columns are further arranged in the foundation pit inner support.
The utility model discloses following beneficial effect has:
1. the utility model provides a pair of a frame post erection node for in reinforced concrete foundation ditch supports, through pre-buried installation pipe, for main part frame post provides mounted position, under the condition that does not influence interior bearing stability of foundation ditch, solved the problem that there is the position conflict in cylinder frame post and the foundation ditch, structural style is simple, construction process is few, has avoided main part structural design and excavation supporting design to change on a large scale, improves the efficiency of construction, practice thrift the time limit for a project, has good economic benefits.
2. The utility model provides a pair of a frame post erection joint for in reinforced concrete foundation ditch supports, support through setting up and add the armpit roof beam, let the internal force distribution of interior support of foundation ditch more reasonable, simultaneously, improve the reliability of support conflict node in frame post of cylinder and the foundation ditch.
3. The utility model provides an outer frame column mounting node used in a reinforced concrete foundation pit support, which is provided with a connecting support leg to enhance the integrity of a pre-buried mounting pipe and an inner support of the foundation pit; before the main body outer frame column is installed, the connection between the embedded installation pipe and the foundation pit inner support is further strengthened by arranging the reinforcing plate, the U-shaped stirrups and the reinforcing steel bars and pouring concrete in the embedded installation pipe, so that the strength of the foundation pit inner support is effectively ensured; in addition, the embedded installation pipe is plugged, so that personnel or materials can be prevented from falling, and the construction safety is guaranteed.
Drawings
Fig. 1 is a schematic structural view of the main body outer frame column according to the present invention before installation;
FIG. 2 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 1 in accordance with the present invention;
fig. 3 is a schematic structural view of the main body outer frame column according to the present invention after installation;
fig. 4 is a cross-sectional view of B-B of fig. 3 according to the present invention.
In the figure: 1-foundation pit inner support, 2-embedded installation pipe, 3-main body outer frame column, 4-connecting supporting legs, 5-inner support haunch beam, 6-reinforcing plate, 7-U-shaped stirrup, 8-reinforcing steel bar and 9-lattice column.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the 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.
As shown in fig. 1-4, the utility model provides an outer frame column mounting node for use in reinforced concrete foundation pit support, which comprises an inner foundation pit support 1, a pre-buried mounting pipe 2, a main body outer frame column 3, a connecting leg 4, an inner support haunched beam 5, a reinforcing plate 6, a U-shaped stirrup 7, a reinforcing steel bar 8 and a lattice column 9; the embedded installation pipe 2 is fixedly arranged in the foundation pit inner support 1 and reserves a space for installing the main body outer frame column 3; the main body outer frame column 3 is arranged in the embedded mounting pipe 2; the connecting support legs 4 are arranged on the outer wall of the embedded mounting pipe 2 at intervals, and the integrity of the embedded mounting pipe 2 and the foundation pit inner support 1 is further enhanced through the connecting support legs 4; the inner support haunched beam 5 is arranged on the front side surface and the rear side surface of the foundation pit inner support 1; the reinforcing plate 6 is fixedly arranged on the outer wall of the inner support haunch beam 5; two vertical ribs of the U-shaped stirrup 7 are fixedly connected with the reinforcing plate 6 and the embedded mounting pipe 2 respectively; the reinforcing steel bar 8 is fixedly arranged on the inner wall of the embedded installation pipe 2; the latticed column 9 is arranged in the foundation pit inner support 1, and the stability of the foundation pit inner support 1 is guaranteed.
The foundation pit inner support 1 is of a reinforced concrete structure.
The height of the embedded installation pipe 2 is the same as that of the foundation pit inner support 1, the shape of the cross section of the embedded installation pipe is the same as that of the main body outer frame column 3, the size of the embedded installation pipe is larger than that of the main body outer frame column 3, the central line of the embedded installation pipe 2 coincides with that of the main body outer frame column 3, namely, a gap is formed between the embedded installation pipe 2 and the main body outer frame column 3, the main body outer frame column 3 is separated from the foundation pit inner support 1, and the influence on the stability of the foundation pit inner support 1 caused by the transmission of the force borne by the main body outer frame column 3 to the foundation pit inner support 1 is avoided. Preferably, the pre-buried installation pipe 2 is of a cylindrical structure, and the main material of the pre-buried installation pipe is Q345C.
The main body outer frame column 3 is a steel pipe concrete column, preferably a cylindrical structure.
The connecting support legs 4 are perpendicular to the outer wall of the embedded mounting pipe 2, are preferably made of 25# I-steel and have the length of 500mm.
The inner support haunch beam 5 is a reinforced concrete beam and is integrally cast with the inner foundation pit support 1, the inner support haunch beam 5 is arranged corresponding to the embedded installation pipe 2, and the outer side edge of the inner support haunch beam opposite to the embedded installation pipe 2 is a straight edge, so that the subsequent reinforcement plate 6 can be fixed conveniently.
The reinforcing plate 6 is preferably a steel plate.
The vertical interval setting of reinforcement reinforcing bar 8 is on the inner wall of pre-buried installation pipe 2 left and right sides to with pre-buried installation pipe 2 welded connection, its height with be not less than pre-buried installation pipe 2's height, the interval is preferably 200mm.
A construction method for an outer frame column installation node in a reinforced concrete foundation pit support specifically comprises the following steps:
step one, designing and processing each component: designing the sizes of components such as a pre-buried installation pipe 2, a connecting support leg 4, an inner support haunched beam 5, a U-shaped stirrup 7, a reinforcing plate 6, a reinforcing steel bar 8 and the like according to the sizes of an inner support 1, a main body outer frame column 3 and a lattice column 9 of a foundation pit, and processing and producing the components;
step two, mounting the connecting supporting legs 4: the outer wall of the embedded installation pipe 2 is welded and connected with the supporting legs 4 in a full-length welding mode;
step three, mounting the embedded mounting pipe 2: embedding the embedded installation pipe 2 in the foundation pit inner support 1;
step four, constructing the foundation pit inner support 1 and the inner support haunch beam 5: binding steel bars of the foundation pit inner support 1 and the inner support haunched beam 5 and pouring concrete;
step five, plugging the pre-buried installation pipe 2: installing a reinforcing plate 6 on the side wall of the inner supporting haunched beam 5, then installing a U-shaped stirrup 7 and a reinforcing steel bar 8, and finally pouring concrete in the embedded installation pipe 2;
step six, constructing the main body outer frame column 3: adopt the water drilling machinery to destroy the concrete in the pre-buried installation pipe 2 of shutoff, then reject U type stirrup 7, reinforcement reinforcing bar 8 and stiffening plate 6, utilize the tower crane to hang main part frame post 3 to pre-buried installation pipe 2 department, the straightness that hangs down of main part frame post 3 is guaranteed in the hoist and mount process, slowly puts into pre-buried installation pipe 2 again, and the straightness that hangs down is examined to the horizontal ruler, carries out the concrete placement of main part frame post 3 inside at last, accomplishes main part frame post 3 and installs.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions on some technical features, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of the present invention.
Claims (7)
1. The utility model provides an outer frame post installation node for in reinforced concrete foundation ditch supports which characterized in that: the foundation pit supporting structure comprises a foundation pit inner support (1), a pre-buried installation pipe (2), a main body outer frame column (3), a connecting supporting leg (4), an inner support haunched beam (5), a reinforcing plate (6), a U-shaped hoop rib (7) and a reinforcing steel bar (8); the embedded installation pipe (2) is fixedly arranged in the foundation pit inner support (1); the main body outer frame column (3) is arranged in the embedded mounting pipe (2), and a gap is formed between the main body outer frame column and the embedded mounting pipe (2); the connecting support legs (4) are arranged on the outer wall of the embedded installation pipe (2) at intervals; the inner support haunched beam (5) is arranged on the front side surface and the rear side surface of the foundation pit inner support (1); the reinforcing plate (6) is fixedly arranged on the outer wall of the inner support haunched beam (5); the U-shaped stirrups (7) are arranged at intervals along the horizontal direction, and two vertical reinforcements of the U-shaped stirrups (7) are respectively welded and connected with the outer wall of the reinforcing plate (6) and the inner wall of the embedded installation pipe (2); the transverse ribs are attached to the top surface of the foundation pit inner support (1).
2. An outer frame column mounting node for use in a reinforced concrete foundation pit support according to claim 1, wherein: the center line of the embedded installation pipe (2) is superposed with the center line of the main body outer frame column (3).
3. An outer frame column mounting node for use in a reinforced concrete foundation pit support according to claim 1, wherein: the supporting haunched beam 5 is arranged corresponding to the embedded installation pipe (2), and the outer side edge of the supporting haunched beam, which is opposite to the embedded installation pipe (2), is a straight edge.
4. An outer frame column mounting node for use in a reinforced concrete foundation pit support according to claim 1, wherein: the reinforcing plate (6) is a steel plate.
5. An outer frame column mounting node for use in a reinforced concrete foundation pit support as claimed in claim 1, wherein: the connecting supporting legs (4) are made of I-shaped steel.
6. An outer frame column mounting node for use in a reinforced concrete foundation pit support according to claim 1, wherein: the reinforcing steel bars (8) are welded on the inner walls of the left side and the right side of the embedded installation pipe (2) at vertical intervals.
7. An outer frame column mounting node for use in a reinforced concrete foundation pit support as claimed in claim 1, wherein: and a lattice column (9) is also arranged in the foundation pit inner support (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222823899.XU CN218479176U (en) | 2022-10-26 | 2022-10-26 | A outer frame post installation node for in reinforced concrete foundation ditch supports |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222823899.XU CN218479176U (en) | 2022-10-26 | 2022-10-26 | A outer frame post installation node for in reinforced concrete foundation ditch supports |
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| CN218479176U true CN218479176U (en) | 2023-02-14 |
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| CN202222823899.XU Active CN218479176U (en) | 2022-10-26 | 2022-10-26 | A outer frame post installation node for in reinforced concrete foundation ditch supports |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115506370A (en) * | 2022-10-26 | 2022-12-23 | 中建一局集团建设发展有限公司 | Construction system and construction method for solving conflict between outer frame column and inner support node |
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2022
- 2022-10-26 CN CN202222823899.XU patent/CN218479176U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115506370A (en) * | 2022-10-26 | 2022-12-23 | 中建一局集团建设发展有限公司 | Construction system and construction method for solving conflict between outer frame column and inner support node |
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