CN103031927A - SCS square concrete-filled steel tube pier column - Google Patents
SCS square concrete-filled steel tube pier column Download PDFInfo
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- CN103031927A CN103031927A CN201210580264XA CN201210580264A CN103031927A CN 103031927 A CN103031927 A CN 103031927A CN 201210580264X A CN201210580264X A CN 201210580264XA CN 201210580264 A CN201210580264 A CN 201210580264A CN 103031927 A CN103031927 A CN 103031927A
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Abstract
The invention discloses an SCS (square concrete-filled steel) tube pier column which comprises a square steel tube, a circular steel tube, four stiffening rib plate groups and a concrete structure, wherein the circular steel tube is mounted in the square steel tube in a sleeving manner; the four stiffening rib plate groups are arranged on four inner side walls of the square steel tube respectively; the concrete structure is formed by pouring concrete filled in a cavity between the square steel tube and the circular steel tube; each stiffening rib plate group comprises a plurality of longitudinal stiffening ribs that are arranged in parallel; the longitudinal stiffening ribs are perpendicular to the inner side walls of the square steel tube where the longitudinal stiffening ribs are located respectively; all the longitudinal stiffening ribs in the four stiffening rib plate groups have identical structures and sizes; the square steel tube and the circular steel tube are arranged coaxially; and the transverse width of each longitudinal stiffening rib is less than a distance between the square steel tube and the circular steel tube where the longitudinal stiffening rib is arranged. The pier column is simple in structure, reasonable in design, convenient to construct, lower in construction cost, good in mechanical property and good in use effect, and can effectively solve the problems existing in the existing square concrete-filled steel tube structure.
Description
Technical field
The present invention relates to a kind of support pier stud, especially relate to a kind of SCS rectangular steel tube performance of concrete column confined.
Background technology
Concrete filled steel tube refers to the structure that forms behind the fill concrete in steel pipe.Steel and concrete bi-material remedy weakness each other mutually, give full play to strong point each other, make concrete filled steel tube have very high bearing capacity, and good mechanical property is arranged.Nowadays, encased structures ocean platform with stride greatly, in an increasingly wide range of applications in the structures such as heavy duty, light bridge, and the encased structures that adopts mainly contains circle, square and three kinds of section forms of rectangle.But, the large defective of present employed encased structures ubiquity dead load, thereby limited to a great extent the development and application of encased structures.
Wherein, Concrete Filled Square Steel Tubular has the following advantages: the first, square steel tube concrete beam post joint form is simple, is easy to construction, and especially in frame construction, the advantage of this node can be brought into play well; The second, the relative inertness square in cross section is larger, resistance to overturning and bending-resistant better performances; Three, have good anti-seismic performance and ductile performance.But square steel pipe is relatively poor to the effect of contraction of core concrete, and cripling easily occurs, and steel using amount is larger, and dead load is large, thereby so that the development and application of Concrete-Filled Square Steel Tube be restricted.For defects and the deficiency that Concrete Filled Square Steel Tubular exists, mainly adopt at present and in square steel pipe, establish the methods such as stiffening rib, reinforcing bar, reinforcing bar, round steel pipe and improve.
To sum up, the several problems of present concrete-filled steel square tubular column ubiquity: the first, square steel pipe to concrete cuff effect a little less than, cripling easily occurs, and the globality of combining structure is inadequate; The second, the deadweight of concrete-filled steel square tubular column is bigger than normal, thereby has limited the physical dimension of cylinder; 3. the steel fire resistance is relatively poor.
Summary of the invention
Technical problem to be solved by this invention is for above-mentioned deficiency of the prior art, a kind of SCS rectangular steel tube performance of concrete column confined is provided, it is simple in structure, reasonable in design, easy construction and construction cost is lower, good mechanical performance, result of use are good, can solve effectively that the switching performance between great, construction inconvenience, outside steel pipe and its inner concrete that existing rectangular steel tube concrete structure exists is poor, outside steel pipe is to problems such as the concrete cuff effect in inside are little.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of SCS rectangular steel tube performance of concrete column confined is characterized in that: comprise rectangular steel tube, be set in the floor group and by the concrete structure that is filled in the concreting moulding in the cavity between rectangular steel tube and the round steel pipe of putting more energy on the round steel pipe of rectangular steel tube inside, four four inside walls that are laid in respectively rectangular steel tube; Each described floor group of putting more energy into includes the longitudinal stiffener that multiple tracks is parallel laying, the cloth set direction of the described longitudinal stiffener of the multiple tracks all central axial direction with rectangular steel tube and round steel pipe is consistent, and the described longitudinal stiffener of multiple tracks all is vertical laying with the inside wall of its rectangular steel tube of living in; The structure of all longitudinal stiffeners in four described floor groups of putting more energy into is all identical with size; Described rectangular steel tube and round steel pipe are coaxial laying; All the central axial direction with described round steel pipe and rectangular steel tube is consistent for the cloth set direction of all longitudinal stiffeners in four described floor groups of putting more energy into, and all longitudinal stiffeners in four described floor groups of putting more energy into all are fastenedly connected with concrete structure and are integrated; Described longitudinal stiffener is strip steel floor, every together described longitudinal stiffener lateral wall is all on the fastening inside wall that is fixed on rectangular steel tube, and the transverse width of every together described longitudinal stiffener is all less than the spacing between its installation position prescription shape steel pipe and the round steel pipe; The longitudinal length of the described PBL stiffening rib of described rectangular steel tube, round steel pipe and multiple tracks is all identical; The top of the top of described rectangular steel tube and the described PBL stiffening rib of multiple tracks is all mutually concordant with the top of described round steel pipe, and the bottom of the bottom of described rectangular steel tube and the described PBL stiffening rib of multiple tracks is all mutually concordant with the bottom of described round steel pipe.
Above-mentioned a kind of SCS rectangular steel tube performance of concrete column confined, it is characterized in that: the middle part of described strip steel floor has a plurality of through holes from top to bottom, and a plurality of described through hole is laid on the same straight line.
Above-mentioned a kind of SCS rectangular steel tube performance of concrete column confined is characterized in that: all be connected with welding manner between the lateral wall of every together described longitudinal stiffener and the inside wall of rectangular steel tube.
Above-mentioned a kind of SCS rectangular steel tube performance of concrete column confined, it is characterized in that: four inside walls of described rectangular steel tube comprise left side wall and the right side wall that is the bilateral symmetry laying and are symmetrical front side wall and the rear wall of laying in front and back, the quantity of the longitudinal stiffener of laying is N1 on described front side wall and the rear wall, and the quantity of the longitudinal stiffener of laying is N2 on described left side wall and the right side wall, N1 〉=N2 wherein, the transverse width L2 of the transverse width L1 of described front side wall and rear wall 〉=described left side wall and right side wall, N1 and N2 are positive integer and N2 〉=2; When the cross section of described rectangular steel tube is square, N1=N2; When the cross section of described rectangular steel tube is rectangle, and L1＞L2.
Above-mentioned a kind of SCS rectangular steel tube performance of concrete column confined is characterized in that: the installation position of the quantity of the through hole of offering and each through hole is all identical on all longitudinal stiffeners in four described floor groups of putting more energy into; A plurality of described through holes are even laying from top to bottom, and the structure of a plurality of described through holes is all identical with size.
Above-mentioned a kind of SCS rectangular steel tube performance of concrete column confined, it is characterized in that: described concrete structure is carbon fiber reinforced concrete.
Above-mentioned a kind of SCS rectangular steel tube performance of concrete column confined, it is characterized in that: the external diameter of described round steel pipe is Φ 102mm～Φ 2000mm, the wall thickness of described rectangular steel tube and round steel pipe is 4mm～100mm, and A1 ︰ A2=1 ︰ (0.6～0.8), A1=a1+b1 wherein, a1 is that cross-sectional area and the b1 of rectangular steel tube is the cross-sectional area of the inboard hollow bulb of rectangular steel tube, A2=π r
2And r is the external diameter of round steel pipe.
Above-mentioned a kind of SCS rectangular steel tube performance of concrete column confined is characterized in that: every together transverse width of described longitudinal stiffener, be spacing between its installation position prescription shape steel pipe and the round steel pipe (
).
Above-mentioned a kind of SCS rectangular steel tube performance of concrete column confined, it is characterized in that: described through hole is circular port, and the aperture of described circular port
Wherein d3 is the transverse width of described circular port longitudinal stiffener of living in.
Above-mentioned a kind of SCS rectangular steel tube performance of concrete column confined, it is characterized in that: the cross-sectional area of described rectangular steel tube is preferably 4m
2～10m
2And its wall thickness is preferably 18mm～25mm, and the wall thickness of described round steel pipe is preferably 18mm～25mm; The transverse width of described strip steel floor is preferably 100mm～250mm and its thickness is preferably 12mm～22mm; The diameter of described circular port is preferably Φ 30mm～Φ 50mm, and the spacing of neighbouring two described circular ports is preferably 100mm～200mm.
The present invention compared with prior art has the following advantages:
1, simple in structure, reasonable in design and construction cost is lower.
2, the slim and graceful and antidetonation of structure and torsional property are good.Simultaneously, mode of occupation is flexible, in the structures such as pier stud, arch rib, crossbeam.
3, easy construction, result of use is good, mechanical property is good and structure is slim and graceful, and the concrete that passes through to pour into a mould between the inside and outside two-layer steel pipe connects into as a whole.During actual the use, the present invention can substantially improve the rectangular steel tube concrete structure from defectives such as great, construction inconvenience, it utilizes the larger sectional area of rectangular steel tube that the larger antitorque and bending resistance moment of inertia in cross section is provided, utilize round steel pipe to effectively reduce volume of concrete and alleviate deadweight, and sandwich concrete is in the three dimension stress state and interior rectangular steel tube is linked to be integral body.Thereby, the present invention can give full play to the form that the rectangular steel tube concrete joint has simple, be easy to the advantage such as construction, the relative inertness square in cross section is larger, antidetonation, torsional property are good, can overcome effectively that switching performance between rectangular steel tube and its inner concrete is poor, outside steel pipe is to the shortcoming such as the concrete cuff effect in inside is little, the present invention utilizes built-in round steel pipe to strengthen concrete cuff effect, and utilizes the effective volume of concrete of round steel pipe to alleviate the purpose of deadweight.
4, the concrete of pouring into a mould between the interior rectangular steel tube both can adopt ordinary concrete, also can adopt carbon fiber reinforced concrete.And, the content that adds carbon fiber in the carbon fiber reinforced concrete that adopts be the quality percentage composition about 0.6%, concrete tensile strength and tension ductility can be improved respectively 30% and 25%.Carbon fiber is to be formed through chopped mechanical cutting by carbon fiber filament, length is generally take mm as unit, profile is that the suede of certain-length must, have lightweight, high-strength, Gao Mo, corrosion-resistant, conduction, advantages of good shielding performance, wave absorbtion high, and have and be uniformly dispersed, feeding manner is various, the simple advantage of technique.Add an amount of chopped carbon fiber in the concrete, can improve concrete tensile strength, anti-intensity and shock resistance, reduce drying shrinkage, improve anti-wear performance, and this concrete is light than the ordinary concrete quality, has certain heat-proof quality and damping performance.With all fill up concrete encased structures in the space that forms between round steel pipe inside and round steel pipe and the rectangular steel tube and compare, the present invention can take full advantage of the intensity of built-in round steel pipe.
5, utilize the lateral stability of perforate stiffening rib enhancing rectangular steel tube, and corresponding significant enhancing structure shear resistance, each ingredient with whole encased structures closely is linked to be integral body simultaneously.Cooperate again the multiple tracks stirrup, with organic the connecting as one of multiple tracks perforate stiffening rib, further strengthened the globality of whole encased structures.Set perforate stiffening rib has not only improved the compressive strength of core concrete, strengthens the stability of tube wall; The effect that simultaneously perforate stiffening rib has served as shear key makes steel pipe and concrete be linked to be integral body, has improved the compound action of Steel concrete.And of the present invention workable, effectively solving nowadays, the curvature time of steel pipe concerns a uppity difficult problem that causes because having with perforate stiffening rib rigidity.
In sum, the present invention is simple in structure, reasonable in design, easy construction and construction cost is lower, good mechanical performance, result of use are good, can solve effectively that the switching performance between great, construction inconvenience, outside steel pipe and its inner concrete that existing rectangular steel tube concrete structure exists is poor, outside steel pipe is to various problems such as the concrete cuff effect in inside are little.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Description of drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is internal construction schematic diagram of the present invention.
Fig. 3 is top structure schematic diagram of the present invention.
Description of reference numerals:
1-rectangular steel tube; 2-round steel pipe; 3-PBL stiffening rib;
4-concrete structure; 5-through hole.
The specific embodiment
Such as Fig. 1, Fig. 2 and shown in Figure 3, the present invention includes rectangular steel tube 1, be set in the floor group and by the concrete structure 4 that is filled in the concreting moulding in the cavity between rectangular steel tube 1 and the round steel pipe 2 of putting more energy on the round steel pipe 2 of rectangular steel tube 1 inside, four four inside walls that are laid in respectively rectangular steel tube 1.Each described floor group of putting more energy into includes the longitudinal stiffener 3 that multiple tracks is parallel laying, the cloth set direction of the described longitudinal stiffener 3 of the multiple tracks all central axial direction with rectangular steel tube 1 and round steel pipe 2 is consistent, and the described longitudinal stiffener 3 of multiple tracks all is vertical laying with the inside wall of its rectangular steel tube 1 of living in.The structure of all longitudinal stiffeners 3 in four described floor groups of putting more energy into is all identical with size.Described rectangular steel tube 1 and round steel pipe 2 are coaxial laying; All the central axial direction with described round steel pipe 2 and rectangular steel tube 1 is consistent for the cloth set direction of all longitudinal stiffeners 3 in four described floor groups of putting more energy into, and all longitudinal stiffeners 3 in four described floor groups of putting more energy into all are fastenedly connected with concrete structure 4 and are integrated; Described longitudinal stiffener 3 is strip steel floor, every together described longitudinal stiffener 3 lateral walls are all on the fastening inside wall that is fixed on rectangular steel tube 1, and the transverse width of every together described longitudinal stiffener 3 is all less than the spacing between its installation position prescription shape steel pipe 1 and the round steel pipe 2.Described rectangular steel tube 1, round steel pipe 2 are all identical with the longitudinal length of the described PBL stiffening rib 3 of multiple tracks.The top of the top of described rectangular steel tube 1 and the described PBL stiffening rib 3 of multiple tracks is all mutually concordant with the top of described round steel pipe 2, and the bottom of the bottom of described rectangular steel tube 1 and the described PBL stiffening rib 3 of multiple tracks is all mutually concordant with the bottom of described round steel pipe 2.
In the present embodiment, the middle part of described strip steel floor has a plurality of through holes 5 from top to bottom, and a plurality of described through hole 5 is laid on the same straight line.
Actually add man-hour, all be connected with welding manner between the lateral wall of every together described longitudinal stiffener 3 and the inside wall of rectangular steel tube 1.
In the present embodiment, four inside walls of described rectangular steel tube 1 comprise left side wall and the right side wall that is the bilateral symmetry laying and are symmetrical front side wall and the rear wall of laying in front and back, the quantity of the longitudinal stiffener of laying 3 is N1 on described front side wall and the rear wall, and the quantity of the longitudinal stiffener of laying 3 is N2 on described left side wall and the right side wall, N1 〉=N2 wherein, the transverse width L2 of the transverse width L1 of described front side wall and rear wall 〉=described left side wall and right side wall, N1 and N2 are positive integer and N2 〉=2; When the cross section of described rectangular steel tube 1 is square, N1=N2; When the cross section of described rectangular steel tube 1 is rectangle, and L1＞L2.
In the present embodiment, the installation position of the quantity of the through hole of offering 5 and each through hole 5 is all identical on all longitudinal stiffeners 3 in four described floor groups of putting more energy into.A plurality of described through holes 5 are even laying from top to bottom, and the structure of a plurality of described through holes 5 is all identical with size.
In the present embodiment, described concrete structure 4 is carbon fiber reinforced concrete.
Actually add man-hour, the external diameter of described round steel pipe 2 is Φ 102mm～Φ 2000mm, the wall thickness of described rectangular steel tube 1 and round steel pipe 2 is 4mm～100mm, and A1 ︰ A2=1 ︰ (0.6～0.8), A1=a1+b1 wherein, a1 is that cross-sectional area and the b1 of rectangular steel tube 1 is the cross-sectional area of rectangular steel tube 1 inboard hollow bulb, A2=π r
2And r is the external diameter of round steel pipe 2.
Every together transverse width of described longitudinal stiffener 3 is spacing between its installation position prescription shape steel pipe 1 and the round steel pipe 2
In the present embodiment, described through hole 5 is circular port, and the aperture of described circular port
Wherein d3 is the transverse width of described circular port longitudinal stiffener 3 of living in.
In the present embodiment, A1=D
2And it is preferably 4m
2～10m
2,=6m
2, wherein D is the lateral wall length of side of described rectangular steel tube 1, the wall thickness of described rectangular steel tube 1 is preferably 18mm～25mm.The transverse width of described strip steel floor is preferably 100mm～250mm and its thickness is preferably 12mm～22mm; The diameter of described circular port is preferably Φ 30mm～50mm, and the spacing of neighbouring two described circular ports is preferably 100mm～200mm.
Actually add man-hour, a plurality of described longitudinal stiffeners 3 are even laying in each described floor group of putting more energy into.In the present embodiment, the quantity of included longitudinal stiffener 3 is preferably 1 road～4 roads in each described floor group of putting more energy into.
During practice of construction, when being used for the field such as building construction, bridge when the concrete filled steel tube pier stud of constructing, the wall thickness of described round steel pipe 2 and rectangular steel tube 1 preferably adjusts accordingly in the scope of 4mm～66mm.When the concrete filled steel tube pier stud of constructing was used for ocean platform, the wall thickness of described round steel pipe 2 and rectangular steel tube 1 preferably adjusted accordingly in the scope of 12mm～100mm.
The above; it only is preferred embodiment of the present invention; be not that the present invention is imposed any restrictions, every any simple modification, change and equivalent structure of above embodiment being done according to the technology of the present invention essence changes, and all still belongs in the protection domain of technical solution of the present invention.
Claims (10)
1. SCS rectangular steel tube performance of concrete column confined is characterized in that: comprise rectangular steel tube (1), be set in the inner round steel pipe (2) of rectangular steel tube (1), the floor group and by the concrete structure (4) that is filled in the interior concreting moulding of cavity between rectangular steel tube (1) and the round steel pipe (2) of putting more energy on four four inside walls that are laid in respectively rectangular steel tube (1); Each described floor group of putting more energy into includes the longitudinal stiffener (3) that multiple tracks is parallel laying, the cloth set direction of the described longitudinal stiffener of multiple tracks (3) all central axial direction with rectangular steel tube (1) and round steel pipe (2) is consistent, and the described longitudinal stiffener of multiple tracks (3) all is vertical laying with the inside wall of its rectangular steel tube of living in (1); The structure of all longitudinal stiffeners (3) in four described floor groups of putting more energy into is all identical with size; Described rectangular steel tube (1) and round steel pipe (2) are coaxial laying; All the central axial direction with described round steel pipe (2) and rectangular steel tube (1) is consistent for the cloth set direction of all longitudinal stiffeners (3) in four described floor groups of putting more energy into, and all longitudinal stiffeners (3) in four described floor groups of putting more energy into all are fastenedly connected with concrete structure (4) and are integrated; Described longitudinal stiffener (3) is strip steel floor, every together described longitudinal stiffener (3) lateral wall is all on the fastening inside wall that is fixed on rectangular steel tube (1), and the transverse width of every together described longitudinal stiffener (3) is all less than the spacing between its installation position prescription shape steel pipe (1) and the round steel pipe (2); Described rectangular steel tube (1), round steel pipe (2) are all identical with the longitudinal length of the described PBL stiffening rib of multiple tracks (3); The top of the top of described rectangular steel tube (1) and the described PBL stiffening rib of multiple tracks (3) is all mutually concordant with the top of described round steel pipe (2), and the bottom of the bottom of described rectangular steel tube (1) and the described PBL stiffening rib of multiple tracks (3) is all mutually concordant with the bottom of described round steel pipe (2).
2. according to a kind of SCS rectangular steel tube performance of concrete column confined claimed in claim 1, it is characterized in that: the middle part of described strip steel floor has a plurality of through holes (5) from top to bottom, and a plurality of described through hole (5) is laid on the same straight line.
3. according to claim 1 or 2 described a kind of SCS rectangular steel tube performance of concrete column confineds, it is characterized in that: all be connected with welding manner between the lateral wall of every together described longitudinal stiffener (3) and the inside wall of rectangular steel tube (1).
4. according to claim 1 or 2 described a kind of SCS rectangular steel tube performance of concrete column confineds, it is characterized in that: four inside walls of described rectangular steel tube (1) comprise left side wall and the right side wall that is the bilateral symmetry laying and are symmetrical front side wall and the rear wall of laying in front and back, on described front side wall and the rear wall the quantity of the longitudinal stiffener of laying (3) be N1, and on described left side wall and the right side wall the quantity of the longitudinal stiffener of laying (3) be N2, N1 〉=N2 wherein, the transverse width L2 of the transverse width L1 of described front side wall and rear wall 〉=described left side wall and right side wall, N1 and N2 are positive integer and N2 〉=2; When the cross section of described rectangular steel tube (1) is square, N1=N2; When the cross section of described rectangular steel tube (1) is rectangle, and L1＞L2.
5. according to a kind of SCS rectangular steel tube performance of concrete column confined claimed in claim 2, it is characterized in that: on all longitudinal stiffeners (3) in four described floor groups of putting more energy into the quantity of the through hole of offering (5) all identical with the installation position of each through hole (5); A plurality of described through holes (5) are even laying from top to bottom, and the structure of a plurality of described through hole (5) is all identical with size.
6. according to claim 1 or 2 described a kind of SCS rectangular steel tube performance of concrete column confineds, it is characterized in that: described concrete structure (4) is carbon fiber reinforced concrete.
7. according to claim 1 or 2 described a kind of SCS rectangular steel tube performance of concrete column confineds, it is characterized in that: the external diameter of described round steel pipe (2) is Φ 102mm～Φ 2000mm, the wall thickness of described rectangular steel tube (1) and round steel pipe (2) is 4mm～100mm, and A1 ︰ A2=1 ︰ (0.6～0.8), A1=a1+b1 wherein, a1 is that cross-sectional area and the b1 of rectangular steel tube (1) is the cross-sectional area of the inboard hollow bulb of rectangular steel tube (1), A2=π r
2And r is the external diameter of round steel pipe (2).
8. according to a kind of SCS rectangular steel tube performance of concrete column confined claimed in claim 2, it is characterized in that: every together transverse width of described longitudinal stiffener (3) is spacing between its installation position prescription shape steel pipe (1) and the round steel pipe (2)
9. according to a kind of SCS rectangular steel tube performance of concrete column confined claimed in claim 2, it is characterized in that: described through hole (5) is circular port, and the aperture of described circular port
Wherein d3 is the transverse width of described circular port longitudinal stiffener of living in (3).
10. according to a kind of SCS rectangular steel tube performance of concrete column confined claimed in claim 7, it is characterized in that: the cross-sectional area of described rectangular steel tube (1) is preferably 4m
2～10m
2And its wall thickness is preferably 18mm～25mm, and the wall thickness of described round steel pipe (2) is preferably 18mm～25mm; The transverse width of described strip steel floor is preferably 100mm～250mm and its thickness is preferably 12mm～22mm; The diameter of described circular port is preferably 30mm～Φ 50mm, and the spacing of neighbouring two described circular ports is preferably 100mm～200mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210580264.XA CN103031927B (en) | 2012-12-27 | 2012-12-27 | SCS square concrete-filled steel tube pier column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210580264.XA CN103031927B (en) | 2012-12-27 | 2012-12-27 | SCS square concrete-filled steel tube pier column |
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| CN103031927A true CN103031927A (en) | 2013-04-10 |
| CN103031927B CN103031927B (en) | 2015-07-15 |
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|---|---|---|---|
| CN201210580264.XA Expired - Fee Related CN103031927B (en) | 2012-12-27 | 2012-12-27 | SCS square concrete-filled steel tube pier column |
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Cited By (4)
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|---|---|---|---|---|
| CN103938799A (en) * | 2014-04-10 | 2014-07-23 | 北京工业大学 | Ribbed steel plate composite gigantic column and manufacturing method |
| CN110130214A (en) * | 2019-06-04 | 2019-08-16 | 姚攀峰 | A kind of bridge pier, bridge structure, king-post and construction method |
| CN111691291A (en) * | 2020-07-14 | 2020-09-22 | 中交第一公路勘察设计研究院有限公司 | Steel-concrete combined plate type pier used in central separation belt of overpass bridge and construction method thereof |
| CN113848119A (en) * | 2021-09-27 | 2021-12-28 | 长安大学 | Method and device for testing PBL (Poly-p-phenylene benzobisoxazole) connecting piece in rectangular concrete-filled steel tube structure |
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|---|---|---|---|---|
| CN103938799A (en) * | 2014-04-10 | 2014-07-23 | 北京工业大学 | Ribbed steel plate composite gigantic column and manufacturing method |
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| CN113848119A (en) * | 2021-09-27 | 2021-12-28 | 长安大学 | Method and device for testing PBL (Poly-p-phenylene benzobisoxazole) connecting piece in rectangular concrete-filled steel tube structure |
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| CN103031927B (en) | 2015-07-15 |
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