CN212656215U - Assembled pipe support of cross prefabricated steel concrete pile and steel-pipe column combination - Google Patents

Assembled pipe support of cross prefabricated steel concrete pile and steel-pipe column combination Download PDF

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Publication number
CN212656215U
CN212656215U CN202021287896.3U CN202021287896U CN212656215U CN 212656215 U CN212656215 U CN 212656215U CN 202021287896 U CN202021287896 U CN 202021287896U CN 212656215 U CN212656215 U CN 212656215U
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steel
pile
plate
column
steel concrete
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CN202021287896.3U
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王国兴
徐先强
李凯宁
金向前
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Nanjing Suxia Design Group Co ltd
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Nanjing Suxia Design Group Co ltd
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Abstract

The utility model discloses an assembled pipe support of cross prefabricated steel concrete pile and steel-pipe column combination, including cross prefabricated steel concrete pile, steel-pipe column and the capital steel sheet that connects gradually from bottom to top, the junction of cross prefabricated steel concrete pile and steel-pipe column is provided with the column bottom stiffening rib, the junction of steel-pipe column and capital steel sheet is provided with the capital stiffening rib, and cross prefabricated steel concrete pile includes two mutually perpendicular steel concrete plates that set up, is provided with the framework of steel reinforcement rather than the shape assorted in two mutually perpendicular steel concrete plates, and the center of framework of steel reinforcement is from top to bottom has the slip casting steel pipe, is provided with a plurality of slip casting holes that communicate with the slip casting steel pipe on the steel concrete plate, and the thick liquid is in the round hole at the pre-buried steel sheet center from the plate top, pours into in the weak soil through slip casting steel pipe, slip casting hole; the utility model discloses a single section stake and steel-pipe column combination have no foundation ditch excavation, no cast in situ concrete cushion cap wet work, the high and with low costs advantage of component finished product quality, work efficiency height.

Description

Assembled pipe support of cross prefabricated steel concrete pile and steel-pipe column combination
Technical Field
The utility model belongs to the technical field of prefabricated assembled pipe bracket, in particular to assembled pipe support of cross prefabricated steel concrete pile and steel-pipe column combination.
Background
The pipeline support is widely applied to industrial pipeline engineering, particularly to a steam long-distance heat transmission network, wherein the number of T-shaped movable pipe supports bearing thermal pipelines with the diameter not more than 400mm is large, and the occupied engineering quantity proportion is also large. At present, no matter the T-shaped pipe frame column adopts a cast-in-place concrete member or a section steel member, the foundation of the T-shaped pipe frame generally adopts a cast-in-place reinforced concrete independent foundation. But is limited by the conditions of on-site concrete preparation, vibrating pouring and maintenance, the construction period of the cast-in-place concrete foundation is long, and the work efficiency is low; the foundation pit excavation occupies a large area, and the foundation arrangement is not flexible; when the bearing capacity of the foundation is poor, foundation treatment means such as replacement and filling, high-pressure jet grouting piles or cement mixing piles and the like are required to be supplemented to the cast-in-place concrete independent foundation, and the construction cost and the civil engineering cost are further increased.
The assembly type structure has the advantages of less on-site wet operation, high component finished product quality, less material loss, high construction speed, on-site environment protection and the like, conforms to the national policy of vigorously developing the assembly type structure, and has wide application in the industries of buildings, electric power and the like. The pipeline support is usually laid along roadside green land in urban areas and industrial parks, and is influenced by other municipal pipelines and trees, so that the construction space is narrow; when the pipeline bracket passes through the fields and villages, the road and field conditions are poor; these factors make it difficult to construct professional piling and pressing equipment, and thus the application of the precast pile in the movable pipe frame foundation is greatly limited.
The precast pile and the section steel pipe frame column are connected by a reinforced concrete bearing platform; because the steel bars in the pile need to be anchored in the concrete of the bearing platform and the column bottom of the section steel pipe frame column also needs to be leveled, the bearing platform adopts a cast-in-place concrete structure. The cushion cap construction needs to carry out foundation ditch excavation, ligature reinforcing bar, steel column rag crab-bolt is pre-buried, concrete placement and shaped steel post column base secondary grouting for the advantage of adopting precast pile, shaped steel stake is greatly weakened.
The small-diameter prefabricated square pile can be subjected to pile pressing construction by adopting small-sized construction machinery, can better adapt to different fields and road conditions, and is suitable for a T-shaped movable pipe frame with small horizontal thrust. However, when the small-diameter precast pile is applied to soft soil foundations such as mucky soil and the like, the stress requirement can be met only by increasing the number of piles or the length of the piles; increasing the number of piles enlarges the size of the bearing platform, increasing the length of the piles increases the cost and the construction difficulty of pressing the piles by small-sized construction machinery, thereby affecting the economical efficiency of the assembled pipe support.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems in the prior art, the utility model provides an assembled pipe support of a cross-shaped prefabricated steel concrete pile and a steel pipe column, which adopts the combination of a single-section pile and the steel pipe column, and has the advantages of no foundation pit excavation, no cast-in-place concrete bearing platform wet operation, high component finished product quality, high work efficiency and low cost; after the grouting pipe is arranged in the pile body, the pile is still suitable for soft soil foundation.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides an assembled pipe support of cross prefabricated steel concrete pile and steel-pipe column combination, includes cross prefabricated steel concrete pile 1, steel-pipe column 3 and the capital steel sheet 5 that connect gradually from bottom to top, the junction of cross prefabricated steel concrete pile 1 and steel-pipe column 3 is provided with column bottom stiffening rib 2, the junction of steel-pipe column 3 and capital steel sheet 5 is provided with capital stiffening rib 4. Cross prefabricated steel concrete pile 1 includes the steel concrete slab 103 of two mutually perpendicular settings, is provided with in the steel concrete slab 103 of two mutually perpendicular settings rather than shape assorted reinforcement cage 104, and reinforcement cage 104's center from the top to having run through slip casting steel pipe 106 down, be provided with the communicating grout hole 107 of a plurality of and slip casting steel pipe 106 on the steel concrete slab 103, cross prefabricated steel concrete pile 1 buries the ground, and the top stretches out in the ground, and the thick liquid pours into from slip casting steel pipe 106 top, pours into in the ground through grout hole 107.
Further, the top of the steel concrete slab 103 is sequentially connected with a pile top steel concrete slab 101 and a slab top embedded steel plate 102 from bottom to top, a plurality of anchor bars 105 are uniformly arranged on the bottom surface of the slab top embedded steel plate 102, and the anchor bars 105 are anchored in the pile top steel concrete slab 101. The center of the plate top embedded steel plate 102 is provided with a round hole with the diameter slightly larger than that of the grouting steel pipe 106, and the top of the grouting steel pipe 106 penetrates through the pile top steel concrete plate 101 and is welded with the edge of the round hole.
Further, the length of the cross-shaped precast concrete pile 1 is 4-6 m; the thickness of the steel concrete plate 103 is 80mm, and the width is 400 mm; the thickness of the pile-top steel concrete slab 101 is 300 mm.
Furthermore, no grouting holes 107 are formed in the range of 1.5m from top to bottom of the grouting steel pipe 106, two grouting holes 107 are formed at intervals of 300mm below 1.5m, an included angle of 45 degrees is formed between a connecting line of the two grouting holes 107 located on the same horizontal plane and the two mutually vertical steel concrete plates 103, and the vertically adjacent grouting holes 107 are arranged in a staggered manner by rotating 90 degrees along the length direction of the steel concrete plates.
Further, the column bottom stiffening rib 2 comprises a positioning stiffening rib 201 and two supporting stiffening ribs 202, a column base positioning groove 301 is formed in the bottom surface of the steel pipe column 3, the positioning stiffening rib 201 is inserted into the column base positioning groove 301, the two supporting stiffening ribs 202 are distributed on the outer wall of the bottom of the steel pipe column 3, the connecting surface of the two supporting stiffening ribs 202 is perpendicular to the positioning stiffening rib 201, and the bottom surfaces of the positioning stiffening rib 201 and the two supporting stiffening ribs 202 are fixed on the top surface of the plate top embedded steel plate 102.
Furthermore, the number of the column top stiffening ribs 4 is 4, the stiffening ribs are uniformly distributed on the outer wall of the top of the steel pipe column 3, and the top surfaces of the column top stiffening ribs 4 are fixed on the bottom surface of the column top steel plate 5.
Further, the bottom of the steel concrete plate 103 is connected with a cross-shaped steel pile tip 108.
Further, the total length of the cross-shaped steel pile tip 108 is 400mm, wherein: the 200mm anchor at the top is connected with the steel reinforcement framework 104 in the steel concrete plate 103, and the 200mm anchor at the bottom extends out of the bottom surface of the steel concrete plate 103; the cross-shaped steel pile tip 108 is a cross-shaped pile tip made of a steel plate with the thickness of 16 mm.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model discloses an integrated design and construction of cross prefabricated steel concrete pile and steel-pipe column. The pile top steel concrete plate integrally cast with the pile body replaces a steel concrete bearing platform which needs to be cast in place in a construction site, avoids the construction procedures of foundation pit excavation, foundation plain concrete cushion layer casting, bearing platform reinforcing steel bar binding, steel column foundation anchor bolt pre-embedding, concrete casting, secondary grouting of the column bottom of the section steel column and the like, and greatly shortens the construction period.
The utility model discloses can adapt to the foundation soil of different grade type. For the compact soil foundation, the cross-shaped steel pile tip is arranged at the pile end to increase the pressure intensity of the pile end, so that the pressing-in of the pile in the compact soil is facilitated. For soft soil foundation, a grouting pipe can be arranged in the pile body, and the bearing capacity of the pile is greatly improved through the compaction grouting foundation reinforcement after pile pressing.
The utility model adopts a single precast pile with a single section of 4-6m length, and the bearing capacity of the pile is high; the weight is close to that of the small prefabricated solid square pile, and the small and medium-sized vehicles can be adopted for transportation, so that the small and medium-sized mechanical equipment can be lifted and pressed. The miniaturization of the construction machinery enhances the adaptability of pipe frame construction under different roads, site conditions and operation spaces.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic structural view of a cross-shaped precast concrete pile of the present invention;
FIG. 3 is a schematic structural view of the middle roof pre-buried steel plate and the anchor bars of the present invention;
FIG. 4 is a distribution diagram of the anchor bars on the pre-buried steel plate on the middle plate top of the utility model;
figure 5 is a cross-sectional view of the middle steel concrete plate and the steel reinforcement cage of the present invention;
FIG. 6 is a schematic structural view of a cross-shaped steel pile tip in the present invention;
FIG. 7 is a cross-sectional view of a cross-shaped steel pile tip of the present invention;
FIG. 8 is a cross-sectional view of a grouting hole of the present invention;
FIG. 9 is a cross-sectional view of another grouting hole of the present invention;
FIG. 10 is a schematic structural view of a column bottom stiffening rib according to the present invention;
FIG. 11 is a schematic structural view of a positioning groove for a middle column base of the present invention;
FIG. 12 is a schematic structural view of a positioning stiffener according to the present invention;
FIG. 13 is a schematic structural view of a support stiffener according to the present invention;
fig. 14 is a schematic connection diagram of a slab top embedded steel plate, a grouting steel pipe and a cross-shaped steel pile tip in the utility model;
fig. 15 is a schematic structural view of the plate top embedded steel plate shown in fig. 14 according to the present invention;
fig. 16 is a schematic view of the connection between the grouting steel pipe and the cross-shaped steel pile tip of fig. 14 according to the present invention;
wherein: 1-cross prefabricated steel concrete pile, 101-pile top steel concrete slab, 102-slab top embedded steel plate, 103-steel concrete slab, 104-steel reinforcement skeleton, 105-anchor bar, 106-grouting steel pipe, 107-grouting hole, 108-cross steel pile tip, 2-column bottom stiffening rib, 201-positioning stiffening rib, 202-supporting stiffening rib, 3-steel pipe column, 301-column base positioning groove, 4-column top stiffening rib and 5-column top steel plate.
Detailed Description
The present invention will be further described with reference to the following examples.
As shown in fig. 1-16, an assembled pipe support of a cross-shaped precast steel concrete pile and steel pipe column combination comprises a cross-shaped precast steel concrete pile 1, a steel pipe column 3 and a column top steel plate 5 which are sequentially connected from bottom to top, a column bottom stiffening rib 2 is arranged at the joint of the cross-shaped precast steel concrete pile 1 and the steel pipe column 3, a column top stiffening rib 4 is arranged at the joint of the steel pipe column 3 and the column top steel plate 5, the cross-shaped precast steel concrete pile 1 comprises two steel concrete plates 103 which are vertically arranged, a steel reinforcement framework 104 matched with the shape of the steel reinforcement framework is arranged in the two steel concrete plates 103 which are vertically arranged, a grouting steel pipe 106 penetrates through the center of the steel reinforcement framework 104 from top to bottom, a plurality of grouting holes 107 communicated with the grouting steel pipe 106 are arranged on the steel concrete plates 103, the cross-shaped precast steel concrete pile 1 is embedded into a foundation, the top end of the cross-shaped precast steel concrete pile extends out of, injected into the foundation through the grouting holes 107. All components are prefabricated in a factory and are welded and connected on site.
The top of the steel concrete slab 103 is sequentially connected with a pile top steel concrete slab 101 and a slab top embedded steel plate 102 from bottom to top, a plurality of anchor bars 105 are uniformly welded on the bottom surface of the slab top embedded steel plate 102, and the anchor bars 105 are anchored in the pile top steel concrete slab 101. The center of the plate top embedded steel plate 102 is provided with a round hole with the diameter larger than that of the grouting steel pipe 106, and the top of the grouting steel pipe 106 penetrates through the pile top steel concrete plate 101 and is welded with the edge of the round hole. The cross-shaped precast steel concrete pile 1 is pressed into the soil (weak soil) until the bottom of the pile top steel concrete plate 101 at the pile top is flush with the ground, namely the plate top embedded steel plate 102 is positioned above the ground, and slurry is injected into the weak soil through the grouting steel pipe 106 and the grouting hole 107 through the central round hole of the plate top embedded steel plate 102.
The cross-shaped precast concrete pile 1 is a single-section pile, so that the difficulties of hoisting and pile pressing caused by pile splicing of multiple sections of piles and higher requirements on the stability and strength of the pile are avoided. The length of the cross-shaped precast steel concrete pile 1 is 4-6 m; the thickness of the steel concrete plate 103 is 80mm, and the width is 400 mm; the thickness of the pile-top steel concrete slab 101 is 300 mm. The concrete grade of the cross-shaped precast steel concrete pile 1 is C40-C50, and the cross-shaped precast steel concrete pile is precast and integrally cast in a factory.
When the cross-shaped reinforced concrete pile is supported in soft soil layers such as mucky soil, newly filled soil and the like, the bearing capacity provided by a natural foundation is low, and the bearing capacity of the foundation can be improved by adopting a compaction grouting mode, namely, a grouting steel pipe 106 penetrating from top to bottom is arranged in the center of a steel reinforcement framework 104, the grouting steel pipe 106 is welded with the steel reinforcement framework 104, and the top of the grouting steel pipe 106 is welded with a circular hole in the center of a plate top embedded steel plate 102. The grouting steel pipe 106 is not provided with grouting holes 107 within the range of 1.5m from top to bottom, two grouting holes 107 are arranged at intervals of 300mm below 1.5m, the connecting line of the two grouting holes 107 positioned on the same horizontal plane and the two mutually vertical steel concrete plates 103 form an included angle of 45 degrees, and the vertically adjacent grouting holes 107 are arranged in a staggered manner by rotating 90 degrees along the length direction of the steel concrete plates. The grouting slurry is common silicate cement slurry, the water cement ratio can be 0.8-2.0, and the grouting flow can be 7-10L/min.
The column bottom stiffening rib 2 comprises a positioning stiffening rib 201 and two supporting stiffening ribs 202, a column base positioning groove 301 is formed in the bottom surface of the steel pipe column 3, the positioning stiffening rib 201 is embedded and welded in the column base positioning groove 301, the two supporting stiffening ribs 202 are distributed on the outer wall of the bottom of the steel pipe column 3, the connecting surface of the two supporting stiffening ribs 202 is perpendicular to the positioning stiffening rib 201, and the bottom surfaces of the positioning stiffening rib 201 and the two supporting stiffening ribs 202 are welded on the top surface of the plate top embedded steel plate 102. The positioning stiffening ribs 201 are used for ensuring the verticality of the steel pipe column 3.
The number of the column top stiffening ribs 4 is 4, the stiffening ribs are uniformly distributed on the outer wall of the top of the steel pipe column 3, and the top surfaces of the column top stiffening ribs 4 are welded on the bottom surface of the column top steel plate 5.
When the cross-shaped prefabricated steel concrete pile 1 is supported on compact soil layers such as silty clay, sandy soil and the like, the bottom (pile end) of the steel concrete plate 103 is connected with a cross-shaped steel pile tip 108 because the bearing capacity provided by the natural foundation is higher and the larger pile end pressure is required for pressing the cross-shaped prefabricated steel concrete pile 1 in.
The total length of the cross-shaped steel pile tip 108 is 400mm, wherein: the 200mm anchor at the top is anchored in the reinforced concrete plate 103 and welded with the steel reinforcement framework 104, and the 200mm anchor at the bottom extends out of the bottom surface (pile end) of the reinforced concrete plate 103; the cross-shaped steel pile tip 108 is a cross-shaped pile tip made of a steel plate with the thickness of 16 mm. The cross-shaped steel pile tip 108 is a selected part of a medium-pressure pile in a dense soil foundation.
Preferably, a through hole is formed in the center of the cross-shaped steel pile tip 108 from top to bottom, the diameter of the through hole is smaller than that of the grouting steel pipe 106, the through hole located in the upper portion is sleeved in the grouting steel pipe 106, and the through hole located in the lower portion extends out of the bottom of the steel reinforcement framework 104 along with the cross-shaped steel pile tip 108.
The utility model discloses a use method: the cross-shaped prefabricated steel concrete pile 1 is pressed into the soil until the bottom of the pile top steel concrete plate 101 on the pile top is flush with the ground. Grout is injected into weak soil through a grouting steel pipe 106 and a grouting hole 107 through a central circular hole of the plate top embedded steel plate 102, after grouting is finished, an air bubble type level meter is used for finding out the inclination direction of the upper surface of the pile top steel concrete plate 101, the positioning stiffening ribs 201 are vertically welded on the pile top embedded steel plate 102, and the positioning stiffening ribs 201 are perpendicular to the inclination direction of the upper surface of the pile top steel concrete plate 101. After the verticality of the steel pipe column 3 is checked to meet the standard requirement, the column base positioning groove 301 of the steel pipe column 3 and the positioning stiffening rib 201 are connected in a welding mode, and then the supporting stiffening rib 202 is fixedly welded with the lower end of the steel pipe column 3 and the pile top embedded steel plate 102 respectively. And (3) performing subsequent other construction after the steel pipe column 3 is welded and fixed by the connecting welding seam of the column top steel plate 5 and the column top stiffening rib 4.
The utility model realizes the integrated design and construction of the cross-shaped precast steel concrete pile and the steel pipe column; multiple construction processes of the cast-in-situ steel concrete bearing platform are avoided, and the construction period is greatly shortened; can adapt to different types of foundation soil; the construction method can adopt small and medium-sized vehicles and construction machinery, and has good adaptability to various construction roads and fields; significant economic benefits will result.
The above description is only a preferred embodiment of the present invention, and it should be noted that: for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be considered as the protection scope of the present invention.

Claims (8)

1. The utility model provides an assembled pipe support of cross prefabricated steel concrete pile and steel-pipe column combination which characterized in that: comprises a cross-shaped prefabricated steel concrete pile (1), a steel pipe column (3) and a column top steel plate (5) which are sequentially connected from bottom to top, wherein a column bottom stiffening rib (2) is arranged at the joint of the cross-shaped prefabricated steel concrete pile (1) and the steel pipe column (3), a column top stiffening rib (4) is arranged at the joint of the steel pipe column (3) and the column top steel plate (5), the cross-shaped prefabricated steel concrete pile (1) comprises two steel concrete plates (103) which are vertically arranged, a steel reinforcement framework (104) matched with the shape of the steel reinforcement framework is arranged in the two steel concrete plates (103) which are vertically arranged, a grouting steel pipe (106) is penetrated through the center of the steel reinforcement framework (104) from top to bottom, a plurality of grouting holes (107) communicated with the grouting steel pipe (106) are arranged on the steel concrete plates (103), the cross-shaped prefabricated steel concrete pile (1) is buried into a foundation, the top end of the prefabricated steel concrete pile extends out of the foundation, injected into the foundation through the grouting holes (107).
2. The cross-shaped prefabricated steel concrete pile and steel pipe column combined assembled pipe support according to claim 1, which is characterized in that: the top of the steel concrete plate (103) is sequentially connected with a pile top steel concrete plate (101) and a plate top embedded steel plate (102) from bottom to top, a plurality of anchor bars (105) are uniformly arranged on the bottom surface of the plate top embedded steel plate (102), and the anchor bars (105) are anchored in the pile top steel concrete plate (101); the center of the plate top embedded steel plate (102) is provided with a round hole with the diameter larger than that of the grouting steel pipe (106), and the top of the grouting steel pipe (106) penetrates through the pile top steel concrete plate (101) and is welded with the edge of the round hole.
3. The cross-shaped prefabricated steel concrete pile and steel pipe column combined assembled pipe support according to claim 2, wherein: the length of the cross-shaped precast steel concrete pile (1) is 4-6 m; the thickness of the steel concrete plate (103) is 80mm, and the width of the steel concrete plate is 400 mm; the thickness of the pile top steel concrete plate (101) is 300 mm.
4. The cross-shaped prefabricated steel concrete pile and steel pipe column combined assembled pipe support according to claim 1, which is characterized in that: the grouting steel pipe (106) is not provided with grouting holes (107) within the range of 1.5m from top to bottom, two grouting holes (107) are arranged at intervals of 300mm below 1.5m, an included angle of 45 degrees is formed between the connecting line of the two grouting holes (107) positioned on the same horizontal plane and the two mutually vertical steel concrete plates (103), and the vertically adjacent grouting holes (107) are arranged in a staggered mode of rotating 90 degrees along the length direction of the steel concrete plates (103).
5. The cross-shaped prefabricated steel concrete pile and steel pipe column combined assembled pipe support according to claim 1, which is characterized in that: the column bottom stiffening rib (2) comprises a positioning stiffening rib (201) and two supporting stiffening ribs (202), a column base positioning groove (301) is formed in the bottom surface of the steel pipe column (3), the positioning stiffening rib (201) is inserted into the column base positioning groove (301), the two supporting stiffening ribs (202) are distributed on the outer wall of the bottom of the steel pipe column (3), the connecting surface of the two supporting stiffening ribs (202) is perpendicular to the positioning stiffening rib (201), and the bottom surfaces of the positioning stiffening rib (201) and the two supporting stiffening ribs (202) are fixed on the top surface of the plate top embedded steel plate (102).
6. The cross-shaped prefabricated steel concrete pile and steel pipe column combined assembled pipe support according to claim 1, which is characterized in that: the number of the column top stiffening ribs (4) is 4, the stiffening ribs are uniformly distributed on the outer wall of the top of the steel pipe column (3), and the top surfaces of the column top stiffening ribs (4) are fixed on the bottom surface of the column top steel plate (5).
7. The cross-shaped prefabricated steel concrete pile and steel pipe column combined assembled pipe support according to claim 1, which is characterized in that: the bottom of the steel concrete plate (103) is connected with a cross-shaped steel pile tip (108).
8. The cross-shaped prefabricated steel concrete pile and steel pipe column combined assembled pipe support according to claim 7, wherein: the total length of the cross-shaped steel pile tip (108) is 400mm, wherein: the 200mm anchor at the top is connected with the steel reinforcement framework (104) in the steel concrete plate (103), and the 200mm anchor at the bottom extends out of the bottom surface of the steel concrete plate (103); the cross-shaped steel pile tip (108) is made of a steel plate with the thickness of 16 mm.
CN202021287896.3U 2020-07-05 2020-07-05 Assembled pipe support of cross prefabricated steel concrete pile and steel-pipe column combination Active CN212656215U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202021287896.3U CN212656215U (en) 2020-07-05 2020-07-05 Assembled pipe support of cross prefabricated steel concrete pile and steel-pipe column combination

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202021287896.3U CN212656215U (en) 2020-07-05 2020-07-05 Assembled pipe support of cross prefabricated steel concrete pile and steel-pipe column combination

Publications (1)

Publication Number Publication Date
CN212656215U true CN212656215U (en) 2021-03-05

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ID=74761087

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