CN116005889B - Stainless steel thin tube built-in function recovery steel structure recycled concrete rectangular section short column - Google Patents
Stainless steel thin tube built-in function recovery steel structure recycled concrete rectangular section short column Download PDFInfo
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- CN116005889B CN116005889B CN202211670968.6A CN202211670968A CN116005889B CN 116005889 B CN116005889 B CN 116005889B CN 202211670968 A CN202211670968 A CN 202211670968A CN 116005889 B CN116005889 B CN 116005889B
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 203
- 239000010959 steel Substances 0.000 title claims abstract description 203
- 239000004567 concrete Substances 0.000 title claims abstract description 89
- 239000010935 stainless steel Substances 0.000 title claims abstract description 78
- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 78
- 238000011084 recovery Methods 0.000 title description 2
- 239000011372 high-strength concrete Substances 0.000 claims abstract description 34
- 230000002787 reinforcement Effects 0.000 claims abstract description 29
- 238000003466 welding Methods 0.000 claims abstract description 13
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims abstract description 9
- 230000007797 corrosion Effects 0.000 claims abstract description 8
- 238000005260 corrosion Methods 0.000 claims abstract description 8
- 230000000694 effects Effects 0.000 claims abstract description 6
- 150000003839 salts Chemical class 0.000 claims abstract description 5
- 239000007921 spray Substances 0.000 claims abstract description 5
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 16
- 239000010962 carbon steel Substances 0.000 claims description 16
- 238000010276 construction Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 3
- 238000005728 strengthening Methods 0.000 claims description 3
- 238000003754 machining Methods 0.000 claims description 2
- 238000006467 substitution reaction Methods 0.000 claims description 2
- 238000005452 bending Methods 0.000 abstract description 7
- 230000009471 action Effects 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 abstract description 4
- 230000007547 defect Effects 0.000 abstract description 4
- 238000013461 design Methods 0.000 description 4
- 230000003628 erosive effect Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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Abstract
The invention discloses a stainless steel thin pipe built-in function restorable steel structure recycled concrete rectangular section short column which is used for building bottom columns and pier columns in a salt spray environment. The periphery of the column section is a thin stainless round pipe welded with square annular rib plates, a steel reinforcement cage is arranged in a stainless square pipe cavity, a space truss formed by welding 4 steel pipe ultra-high strength concrete vertical rods and H-shaped steel diagonal rods is arranged in the steel reinforcement cage, a peg is not welded only in the range of 5 times of the diameter of the bottom of each vertical rod of the space truss, the vertical rod strain of the range is nearly equal under the action of repeated earthquakes, and each vertical rod of the steel truss is in a deformed and recoverable elastic state, so that the defect that the vertical rod of the steel truss with the section is caused to yield due to the maximum bending moment of the section of the bottom of the column is overcome. The stainless steel square tube with square annular ribs and the square steel reinforcement cage have double constraint effects on the recycled concrete and the steel truss. The column has the comprehensive technical advantages of resisting chloride ion corrosion, utilizing ecological concrete, being high-efficiency in stress, recovering functions after earthquake and being good in durability.
Description
Technical Field
The invention relates to a steel structure recycled concrete square section column with a function-restorable stainless steel thin square tube built-in function, belonging to the technical field of combined structural engineering.
Background
The structural columns of the high-rise and super-high-rise structures of the building structure not only need to bear the vertical weight of the building, but also are main lateral force resistant members of the structure, and are always in complex stress states of bending, shearing and twisting under the action of external forces such as earthquake and the like. Therefore, the vertical load-bearing capacity, the earthquake resistance and the weather resistance of the high-rise and super-high-rise structural columns have significant influence on the normal service performance, the earthquake safety and the use and maintenance cost of the whole life cycle of the structure. Meanwhile, the construction waste discharge amount tends to increase year by year, and steel-concrete combined columns (pier columns) adopted in major projects such as cross-sea bridges in China are in marine environments and have the functions of resisting chloride ion corrosion and erosion, bearing strong wind load and resisting earthquake. The high-rise building structural pillars and bridge pier pillars of the cross-sea bridge at sea are required to have not only enough mechanical properties against strong wind and earthquakes, but also durability against erosion of chloride ions.
The bottleneck problem of the prior art is as follows: (1) The traditional combined structure middle column member adopts a steel pipe concrete column or a steel reinforced concrete column. For the steel pipe concrete column, especially the square steel pipe concrete column, the constraint capacity of the steel pipe to the core concrete is relatively reduced along with the improvement of the strength or the increase of the area of the core concrete, the deformation capacity of the component can not be remarkably improved, and the chloride ion corrosion resistance of the common carbon steel is weaker; (2) The traditional steel-concrete combined column adopts a carbon steel pipe concrete column or a steel concrete column with built-in H-shaped steel or cross-shaped steel, and when the side length of the square section of the column reaches 2000mm or more, the steel mechanical property of the steel is not fully utilized by the steel concrete column with built-in H-shaped steel or cross-shaped steel, so that the traditional steel-concrete combined column is changed into a built-in separated steel structure, and the defects of the lack of interconnection between the separated steel structures and the insufficient spatial stress advantage are obvious; (3) At present, although the traditional steel-concrete combined structural column can meet the requirement of earthquake fortification through reasonable design, the built-in section steel of the column yields in the earthquake action process, so that the function of the built-in section steel of the column is difficult to recover after earthquake; (4) At present, the preparation technology of the C60 high-strength recycled concrete adopting the recycled coarse aggregate is mature, but the application in the structural column is less, and the engineering application for pushing the steel-recycled concrete combined structural column is needed.
Disclosure of Invention
The invention provides a stainless steel thin square pipe built-in function restorable steel structure recycled concrete square section column, and the stainless steel pipe at the periphery of the column has good corrosion resistance and can be used for the bottom area of a high-rise building column and a bridge pier column in a salt spray environment. In order to solve the background problem, the technical aim of the invention is to provide the steel structure recycled concrete square section column with the function-restorable stainless steel thin square tube, and the characteristics of corrosion resistance, overall stress performance, post-earthquake restorability, steel-recycled concrete integrated performance and the like are improved through the scheme.
In order to achieve the above purpose, the invention adopts the following technical scheme:
The utility model provides a stainless steel thin pipe embeds recoverable steel structure recycled concrete rectangular cross section short column of function, includes stainless steel Bao Fangguan (1), square annular rib plate (2), square stirrup (3), longitudinal reinforcement (4), space truss steel constructed steel pipe super high strength concrete montant (5), peg (6), H shaped steel diagonal bar (7) and recycled concrete (8) excels in.
The inner side of the stainless steel Bao Fangguan (1) is welded with a square annular rib plate (2), and the stainless steel Bao Fangguan (1) and the square annular rib plate (2) are welded to form an internal ribbed square thin-wall stainless steel tube; the square stirrups (3) and the longitudinal steel bars (4) are arranged along the transverse direction and the longitudinal direction and welded to form a square steel bar cage; the four steel pipe ultra-high strength concrete vertical rods (5) are vertically arranged in parallel at the corners of the rectangular cross section, the four steel pipe ultra-high strength concrete vertical rods (5) are connected by the H-shaped steel diagonal rods (7) of the space truss steel structure in a welded mode, the steel pipe ultra-high strength concrete vertical rods are welded with the bolts (6), and the function-restorable space truss steel structure is formed by welding the steel pipe ultra-high strength concrete vertical rods (5), the bolts (6) and the H-shaped steel diagonal rods (7). The function recoverable space truss steel structure is arranged in a square steel reinforcement cage, the square steel reinforcement cage is arranged in a square thin-wall stainless steel tube with ribs, and high-strength recycled concrete (8) is poured to form an integrated structure.
Further, the stainless steel Bao Fangguan (1) refers to a round stainless steel square tube with the section width of the column not smaller than 2000mm and the wall thickness not larger than 5mm, and the stainless steel thin tube has the functions of preventing corrosion of chloride ions to the inside of the section of the column in a salt spray environment, strengthening constraint on concrete and improving the stress performance of the column, and has the template function of pouring high-strength recycled concrete.
Further, the square annular rib plate (2) is a square annular carbon steel plate stiffening rib welded in the stainless steel thin square pipe, the thickness of the cross section of the square annular carbon steel plate stiffening rib is 10mm, the height of the cross section of the square annular carbon steel plate stiffening rib is 50mm, the square annular carbon steel plate stiffening rib can ensure the geometric shape of the thin stainless steel thin square pipe, strengthen the meshing effect of the stainless steel thin pipe and the high-strength recycled concrete, and strengthen the constraint on the high-strength recycled concrete.
Further, the square stirrup (3) and the longitudinal steel bars (4) are respectively formed into a square steel bar cage by welding the square stirrup with the diameter of 14mm and the longitudinal steel bar with the diameter of 20 mm. The square steel reinforcement cage is positioned on the inner side of the stainless steel thin Guan Fangxing annular rib plate (2), the net protection layer of the stirrup of the square steel reinforcement cage is 20mm, the square steel reinforcement cage has a strong constraint function on the high-strength recycled concrete, and the deformability of the recycled concrete can be improved. The stainless steel thin square tube and the steel reinforcement cage welded with the square annular rib plates have double constraint effects on the high-strength recycled concrete, and the stress performance of the column is obviously improved.
Further, the steel pipe ultra-high strength concrete vertical rod (5) of the space truss steel structure is four square carbon steel pipes filled with C100 ultra-high strength common concrete, wherein the square corner points in the cavity of the stainless steel pipe are distributed, the width of the cross section of the circular carbon steel pipe is 1/6-1/10 of the diameter of the thin-wall stainless steel square pipe, and the distance between the surface of the circular carbon steel pipe and the surface of the stainless steel pipe is not less than 150mm.
Further, the studs (6) are welded around the steel pipe ultra-high strength concrete vertical rods (5) of the function-recoverable space truss steel structure extending into the connecting base part, the steel pipe ultra-high strength concrete vertical rods (5) are firmly anchored with the connecting base part, the studs are not welded around the steel pipe ultra-high strength concrete vertical rods (5) from the surface of the base part to the range of 5 times of the cross section width of the steel pipe ultra-high strength concrete vertical rods (5), and the studs are welded around the steel pipe ultra-high strength concrete vertical rods (5) at positions where the studs are not welded upwards from the steel pipe ultra-high strength concrete vertical rods (5); because the periphery of the vertical rod ranging from the foundation surface to 5 times of the width of the section of the steel pipe ultra-high strength concrete vertical rod (5) is not welded with a peg, the vertical rod steel pipe in the range is pulled and stressed to be almost equal under the action of repeated earthquakes, the steel truss vertical rod is in an elastic stage with recoverable deformation, and the defect that the vertical rod steel pipe at the foundation surface position is yielded due to the maximum bending moment of the foundation surface of the column is overcome.
Further, the H-shaped steel diagonal rods (7) are truss diagonal support H-shaped steel rod pieces, two ends of the truss diagonal support H-shaped steel rod pieces are welded with the small-section steel pipe concrete column, and the included angle between the diagonal support rods and the horizontal line is 45-60 degrees. The flange opening of the H-shaped steel diagonal brace is in the up-down direction, namely, the flange is vertically placed, the web is horizontally placed, the high-strength recycled concrete can restrict buckling of the flange and the web of the H-shaped steel diagonal brace, and the strength of steel is fully utilized.
Further, the high-strength recycled concrete (8) is recycled concrete with a recycled coarse aggregate substitution rate of less than 50% and a strength grade of not less than C60.
The invention relates to a steel structure recycled concrete square section column with a function-restorable stainless steel thin square tube built-in function, which comprises the following concrete steps:
The first step: and (3) processing thin-wall stainless steel square tubes, square annular rib plates, square reinforcement cages, steel space truss vertical rod steel tubes, H-shaped steel diagonal rods and studs on the surfaces of the welded steel space truss vertical rod steel tubes in factories.
And a second step of: and welding the square annular rib plate with the inner side of the thin-wall stainless steel square tube.
And a third step of: and welding the vertical rod steel pipes of the steel structure space truss with the H-shaped steel diagonal rods.
Fourth step: and placing the steel reinforcement cage in the stainless steel tube cavity, and placing the steel truss in the steel reinforcement cage in the steel construction space and positioning.
Fifth step: c100 ultra-high strength concrete is poured into the vertical rod steel pipes of the steel truss, C60 high strength recycled concrete is poured into the thin-wall stainless steel pipes, and the concrete is maintained.
Compared with the prior art, the invention relates to a steel structure recycled concrete square section column with a function-restorable stainless steel thin square tube, which has the following advantages:
(1) Double constraint structure of thin-wall stainless steel square tube and steel reinforcement cage: after the square annular rib plates are welded on the thin-wall stainless steel square pipes, the geometric shape of the thin stainless steel square pipes can be guaranteed, the engagement with concrete can be enhanced, and the tightness of the thin-wall stainless steel square pipes can protect core concrete and steel structures from performance degradation caused by chloride ion erosion environments. The thin-wall stainless square steel tube can effectively restrict the internal high-strength recycled concrete and the space combined steel truss, so that the compression performance and the earthquake resistance of the column are improved; the reinforcement cage can further improve the constraint capacity of the high-strength recycled concrete and the stress performance of the high-strength recycled concrete.
(2) Function recoverable space truss steel constructs: the vertical rod of the steel structure adopts carbon square steel pipe ultra-high strength common concrete, and the steel pipe of the vertical rod and the ultra-high strength concrete work together and are mutually restricted, so that the steel structure has the advantage of good compression resistance and bending resistance; the vertical rod steel pipe of the built-in space truss steel structure goes deep into the periphery of the foundation part to obtain the anchoring capability firm with the foundation, no peg is arranged from the foundation surface to the periphery of the 5-time section width height range to realize uniform distribution of vertical rod strain in the bottom area with the largest bending moment, and the steel pipe is still in an elastic stage with recoverable deformation under the action of repeated earthquakes.
(3) High-strength recycled concrete: the strength of the recycled concrete can be fully utilized, and the sustainable development of the recycled concrete combined structure can be promoted.
Drawings
Fig. 1 shows a constraint structure of square thin-wall stainless steel pipes and reinforcement cages.
The function of fig. 2 is to restore the steel structure.
FIG. 3 shows a stainless steel thin square tube built-in function restorable steel structure recycled concrete square section column structure.
Detailed Description
The present invention will be described in detail below with reference to the drawings and examples.
In the technical scheme adopted by the invention, the stainless steel Bao Fangguan (shown in figure 1) is a square stainless steel pipe with the thickness of not more than 5mm and the width of the section of the column not less than 2000mm, and the stainless steel thin pipe has the functions of preventing corrosion of chloride ions to the inside of the section of the column in a salt spray environment, strengthening the constraint of chloride ions to concrete and improving the stress performance of the column, and has the template function of pouring high-strength recycled concrete.
The stainless steel Bao Fangguan-steel reinforcement cage double constraint structure (figure 1) consists of a stainless steel thin square pipe with square annular ribs welded on the outer layer and a square steel reinforcement cage with the inner part consisting of stirrups and longitudinal ribs, can effectively constrain the inner high-strength recycled concrete to prevent brittle failure, simultaneously enhances the constraint effect of the high-strength recycled concrete on the space truss steel rod, and can effectively prevent the space truss steel rod from being unstable under the earthquake effect.
The function-restorable steel structure (figure 2) is a space truss steel structure formed by welding 4 steel pipe ultra-high strength concrete vertical rods distributed at square corner points and H-shaped steel diagonal rods arranged at the periphery of a square surrounded by the 4 steel pipe ultra-high strength concrete vertical rods in a stainless steel pipe cavity, has the stress characteristics of strong bending resistance, shearing resistance and torsion resistance, and has an included angle of 45-60 degrees with a horizontal line; the space truss steel structure vertical rod steel pipe is fixedly anchored with the foundation by welding studs at the periphery of the vertical rod extending into the foundation part, no studs are welded at the periphery of the vertical rod ranging from the foundation surface to 5 times of the width of the section of the vertical rod, and the studs are welded at the periphery of the vertical rod upwards from the position where the studs are not welded; because the stud is not welded on the periphery of the vertical rod in the range from the base surface to 5 times of the diameter of the vertical rod section, the vertical rod steel pipes in the range are pulled and stressed by the repeated earthquake action of the column are nearly equal, the space truss steel structure vertical rod steel pipes are in an elastic deformation restorable stage, and the defect that the space truss steel structure vertical rod steel pipes in the base surface area are yielded due to the maximum bending moment of the base surface of the column is overcome.
The high-strength recycled concrete comprises C100 ultrahigh-strength common concrete poured in a cavity of a recoverable steel structure vertical rod and C60 high-strength recycled coarse aggregate concrete with other column sections occupying a larger range, and has sustainable development of concrete materials, wherein the engineering application of the preparation technology maturity of the C60 high-strength recycled concrete and the promotion of a steel-recycled concrete combined column structure is considered.
(1) And determining the arrangement position of the high-strength recycled concrete square section column of the space steel truss built-in thin-wall stainless steel square tube according to the structural design, initially selecting the section size, calculating and determining 304 the thickness of the thin-wall stainless steel tube, the section size of the steel plate annular rib, the stirrup and longitudinal rib configuration of the square steel reinforcement cage and the design parameters of the space truss steel structure, and drawing a detailed column construction design drawing.
(2) The construction process of the stainless steel thin square pipe built-in function restorable steel structure recycled concrete square section column is as follows: 1) Machining thin-wall stainless steel square tubes, square annular rib plates, square reinforcement cages, steel space truss vertical rod steel tubes, H-shaped steel diagonal rods and studs on the surfaces of the welded steel space truss vertical rod steel tubes in factories; 2) Welding the square annular rib plate with the inner side of the thin-wall stainless steel square tube; 3) Welding a vertical rod steel pipe of the steel structure space truss with an H-shaped steel diagonal rod; 4) Placing a steel reinforcement cage in the stainless steel tube cavity, and placing a steel truss in the steel construction space in the steel reinforcement cage and positioning; 5) C100 ultra-high strength concrete is poured into the vertical rod steel pipes of the steel truss, C60 high strength recycled concrete is poured into the thin-wall stainless steel pipes, and the concrete is maintained.
The above is an exemplary embodiment of the present invention, and the implementation of the present invention is not limited thereto.
Claims (7)
1. Stainless steel thin pipe embeds function recoverable steel structure recycled concrete rectangular cross-section short column, its characterized in that: the steel pipe ultra-high-strength concrete vertical rod comprises stainless steel Bao Fangguan (1), square annular rib plates (2), square stirrups (3), longitudinal steel bars (4), a steel pipe ultra-high-strength concrete vertical rod (5) of a space truss steel structure, a bolt (6), an H-shaped steel diagonal rod (7) and high-strength recycled concrete (8);
The inner side of the stainless steel Bao Fangguan (1) is welded with a square annular rib plate (2), and the stainless steel Bao Fangguan (1) and the square annular rib plate (2) are welded to form an internal ribbed square thin-wall stainless steel tube; the square stirrups (3) and the longitudinal steel bars (4) are arranged along the transverse direction and the longitudinal direction and welded to form a square steel bar cage; the four steel pipe ultra-high strength concrete vertical rods (5) are vertically and parallelly arranged at the corners of the rectangular cross section, the four steel pipe ultra-high strength concrete vertical rods (5) are welded and connected by the H-shaped steel diagonal rods (7) of the space truss steel structure, the steel pipe ultra-high strength concrete vertical rods are welded with the bolts (6), and the function-restorable space truss steel structure is formed by welding the steel pipe ultra-high strength concrete vertical rods (5), the bolts (6) and the H-shaped steel diagonal rods (7); the function-recoverable space truss steel structure is arranged in a square steel reinforcement cage, the square steel reinforcement cage is arranged in a square thin-wall stainless steel tube with ribs inside, and high-strength recycled concrete (8) is poured to form an integrated structure;
The steel pipe ultra-high strength concrete vertical rods (5) of the space truss steel structure are four square carbon steel pipes filled with C100 ultra-high strength common concrete and distributed at square corner points in a cavity of the stainless steel pipe, the cross section width of the circular carbon steel pipe is 1/6-1/10 of the diameter of a thin-wall stainless steel square pipe, and the distance between the surface of the circular carbon steel pipe close to the stainless steel pipe and the stainless steel pipe is not less than 150mm;
The pegs (6) are welded around the steel pipe ultra-high strength concrete vertical rods (5) of the functional recoverable space truss steel structure extending into the connecting base part, the steel pipe ultra-high strength concrete vertical rods (5) are firmly anchored with the connecting base part, the pegs are not welded around the steel pipe ultra-high strength concrete vertical rods (5) from the surface of the base part to the range of 5 times of the width of the section of the steel pipe ultra-high strength concrete vertical rods (5), and the pegs are welded around the steel pipe ultra-high strength concrete vertical rods (5) at positions where the pegs are not welded upwards from the steel pipe ultra-high strength concrete vertical rods (5); because the stud is not welded on the periphery of the vertical rod ranging from the surface of the foundation to the width of the section of the 5 times of the steel pipe ultra-high strength concrete vertical rod (5).
2. The stainless steel thin tube built-in function restorable steel structure recycled concrete rectangular cross-section short column according to claim 1, characterized in that: the stainless steel Bao Fangguan (1) is a round stainless steel square tube with the section width of the column not smaller than 2000mm and the wall thickness not larger than 5mm, and the stainless steel thin tube has the functions of preventing corrosion of chloride ions to the inside of the section of the column in a salt spray environment, strengthening the constraint of concrete and improving the stress performance of the column, and has the template function of pouring high-strength recycled concrete.
3. The stainless steel thin tube built-in function restorable steel structure recycled concrete rectangular cross-section short column according to claim 1, characterized in that: the square annular rib plate (2) is a square annular carbon steel plate stiffening rib welded inside the stainless steel thin square tube, the thickness of the cross section of the square annular carbon steel plate stiffening rib is 10mm, the height of the cross section of the square annular carbon steel plate stiffening rib is 50mm, the square annular carbon steel plate stiffening rib can not only ensure the geometric shape of the thin stainless steel thin square tube, but also strengthen the meshing effect of the stainless steel thin tube and the high-strength recycled concrete, and can also strengthen the constraint on the high-strength recycled concrete.
4. The stainless steel thin tube built-in function restorable steel structure recycled concrete rectangular cross-section short column according to claim 1, characterized in that: the square stirrup (3) and the longitudinal steel bars (4) are respectively formed into a square steel bar cage by welding a square stirrup with the diameter of 14mm and a longitudinal steel bar with the diameter of 20 mm; the square steel reinforcement cage is positioned at the inner side of the stainless steel thin Guan Fangxing annular rib plate (2), and the net protection layer of the stirrup of the square steel reinforcement cage is 20mm.
5. The stainless steel thin tube built-in function restorable steel structure recycled concrete rectangular cross-section short column according to claim 1, characterized in that: the H-shaped steel diagonal rods (7) are truss diagonal support H-shaped steel rod pieces, two ends of the truss diagonal support H-shaped steel rod pieces are welded with the small-section steel pipe concrete column, and the included angle between each diagonal support rod and a horizontal line is 45-60 degrees; the flange opening of the H-shaped steel diagonal brace is in the up-down direction, namely, the flange is vertically placed, the web is horizontally placed, the high-strength recycled concrete can restrict buckling of the flange and the web of the H-shaped steel diagonal brace, and the strength of steel is fully utilized.
6. The stainless steel thin tube built-in function restorable steel structure recycled concrete rectangular cross-section short column according to claim 1, characterized in that: the high-strength recycled concrete (8) is recycled concrete with the recycled coarse aggregate substitution rate of less than 50% and the strength grade of not less than C60.
7. The stainless steel thin tube built-in function restorable steel structure recycled concrete rectangular section short column according to any one of claims 1-6, characterized in that: the concrete method for the stainless steel thin square tube built-in function restorable steel structure recycled concrete square section column is as follows:
The first step: machining thin-wall stainless steel square tubes, square annular rib plates, square reinforcement cages, steel space truss vertical rod steel tubes, H-shaped steel diagonal rods and studs on the surfaces of the welded steel space truss vertical rod steel tubes in factories;
And a second step of: welding the square annular rib plate with the inner side of the thin-wall stainless steel square tube;
and a third step of: welding a vertical rod steel pipe of the steel structure space truss with an H-shaped steel diagonal rod;
fourth step: placing a steel reinforcement cage in the stainless steel tube cavity, and placing a steel truss in the steel construction space in the steel reinforcement cage and positioning;
Fifth step: c100 ultra-high strength concrete is poured into the vertical rod steel pipes of the steel truss, C60 high strength recycled concrete is poured into the thin-wall stainless steel pipes, and the concrete is maintained.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211670968.6A CN116005889B (en) | 2022-12-25 | 2022-12-25 | Stainless steel thin tube built-in function recovery steel structure recycled concrete rectangular section short column |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1987012A (en) * | 2006-12-22 | 2007-06-27 | 哈尔滨工业大学 | Steel tube binding type steel high strength concrete pole |
| CN105484429A (en) * | 2016-01-08 | 2016-04-13 | 广西大学 | Steel reinforced concrete combination pillar with built-in bunched spiral stirrups and manufacturing method |
| CN205531020U (en) * | 2016-03-30 | 2016-08-31 | 广西大学 | Join in marriage and bundle wire spiral square steel tube high -strength concrete post |
| CN106639149A (en) * | 2016-10-11 | 2017-05-10 | 广西大学 | Core constraint type open-spandrel section steel concrete combination column and manufacturing method |
| WO2017185942A1 (en) * | 2016-04-29 | 2017-11-02 | 东南大学 | Steel-fiber composite material concrete combined column, and post-earthquake repair method thereof |
-
2022
- 2022-12-25 CN CN202211670968.6A patent/CN116005889B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1987012A (en) * | 2006-12-22 | 2007-06-27 | 哈尔滨工业大学 | Steel tube binding type steel high strength concrete pole |
| CN105484429A (en) * | 2016-01-08 | 2016-04-13 | 广西大学 | Steel reinforced concrete combination pillar with built-in bunched spiral stirrups and manufacturing method |
| CN205531020U (en) * | 2016-03-30 | 2016-08-31 | 广西大学 | Join in marriage and bundle wire spiral square steel tube high -strength concrete post |
| WO2017185942A1 (en) * | 2016-04-29 | 2017-11-02 | 东南大学 | Steel-fiber composite material concrete combined column, and post-earthquake repair method thereof |
| CN106639149A (en) * | 2016-10-11 | 2017-05-10 | 广西大学 | Core constraint type open-spandrel section steel concrete combination column and manufacturing method |
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