CN102995555A - Sequence control system (SCS) concrete filled steel tube bridge pier with stiffening ribs added at bottom - Google Patents
Sequence control system (SCS) concrete filled steel tube bridge pier with stiffening ribs added at bottom Download PDFInfo
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- CN102995555A CN102995555A CN2012105801505A CN201210580150A CN102995555A CN 102995555 A CN102995555 A CN 102995555A CN 2012105801505 A CN2012105801505 A CN 2012105801505A CN 201210580150 A CN201210580150 A CN 201210580150A CN 102995555 A CN102995555 A CN 102995555A
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Abstract
The invention discloses an SCS concrete filled steel tube bridge pier with stiffening ribs added at the bottom. The SCS concrete filled steel tube bridge pier comprises an outer steel tube, an inner steel tube, a top end stiffening structure, a bottom end stiffening structure and a concrete structure. The inner steel tube is sleeved inside the outer steel tube, the top end stiffening structure is distributed between the top end of the outer steel tube and the top end of the inner steel tube, the bottom end stiffening structure is distributed between the bottom end of the outer steel tube and the bottom end of the inner steel tube, the concrete structure is molded by pouring concrete filled in a cavity between the outer steel tube and the inner tube, the inner steel tube is a round steel tube, the outer steel tube and the inner steel tube are coaxially distributed, the top end stiffening structure comprises a plurality of longitudinal stiffening ribs one, and the bottom end stiffening structure comprises a plurality of channels of longitudinal stiffening ribs two. According to the SCS concrete filled steel tube bridge pier with stiffening ribs added at the bottom, the structure is simple, the design is reasonable, the construction is convenient, the construction cost is low, the mechanical property and the usage effect are good, and problems that the self weight is large, the connection property between the outer steel tube and the concrete inside the outer steel tube is poor, hooping functions of the outer steel tube on the concrete inside are small, upper and lower bottoms are easily bent, and the like in concrete filled steel tube bridge piers are solved.
Description
Technical field
The present invention relates to a kind of concrete pier of steel tube, especially relate to the SCS concrete pier of steel tube that stiffening rib is set up in a kind of end.
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.
After in steel pipe, laying perforate stiffening rib (being called for short the PBL stiffening rib), not only improve the compressive strength of core concrete, strengthened the stability of steel pipe 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.But during actual the use, the rigidity of the morning and evening of steel pipe flexing with the PBL stiffening rib has direct relation, thereby wayward, and the deadweight of the concrete pier of steel tube of institute's construction molding is very large.
In addition, owing to stand dynamic loading throughout the year, the top of bridge pier and bottom are suffered to have the greatest impact, and the cripling of steel pipe very easily occurs, and finally causes the destruction of bridge pier structure.And the middle part of bridge pier structure stability better, is difficult for occuring cripling.
To sum up, need the nowadays structure of the concrete pier of steel tube that adopts is carried out corresponding improvement.
Summary of the invention
Technical problem to be solved by this invention is for above-mentioned deficiency of the prior art, the SCS concrete pier of steel tube that provides a kind of end to set up stiffening rib, it is simple in structure, reasonable in design, easy construction and construction cost is lower, good mechanical performance, result of use are good, and the switching performance between great, outside steel pipe and its inner concrete that can solve effectively that existing concrete pier of steel tube exists is poor, outside steel pipe is little to the concrete cuff effect in inside, the problems such as curvature easily occur upper and lower end parts.
For solving the problems of the technologies described above, the technical solution used in the present invention is: the SCS concrete pier of steel tube of stiffening rib is set up in a kind of end, it is characterized in that: comprise outer steel pipe, be set in the interior steel pipe of outer steel duct, be laid in the top reinforcing structure between outer steel pipe top and the interior steel pipe top, be laid between outer steel pipe bottom and the interior steel pipe bottom the bottom reinforcing structure and until described top reinforcing structure and described bottom reinforcing structure all lay finish after by the concrete structure that is filled in the concreting moulding in the cavity between outer steel pipe and the interior steel pipe, described interior steel pipe is that round steel pipe and its are laid in the middle inside of outer steel pipe; Described outer steel pipe and interior steel pipe are coaxial laying; Described top reinforcing structure comprises multiple tracks longitudinal stiffener one, and described bottom reinforcing structure comprises multiple tracks longitudinal stiffener two, all the central axial direction with described interior steel pipe and outer steel pipe is consistent for the cloth set direction of the described longitudinal stiffener one of multiple tracks and the described longitudinal stiffener two of multiple tracks, and the described longitudinal stiffener one of multiple tracks and the described longitudinal stiffener two of multiple tracks all are fastenedly connected with concrete structure and are integrated; The described longitudinal stiffener one of multiple tracks and the described longitudinal stiffener two of multiple tracks are strip steel floor, the inside wall of the described longitudinal stiffener one of multiple tracks and the described longitudinal stiffener two of multiple tracks all is fastenedly connected with the lateral wall of interior steel pipe and is integrated, and the lateral wall of the described longitudinal stiffener one of multiple tracks and the described longitudinal stiffener two of multiple tracks all is fastenedly connected with the inside wall of outer steel pipe and is integrated; The described longitudinal stiffener one of multiple tracks and the described longitudinal stiffener two of multiple tracks are all laid along the circumferencial direction of interior steel pipe; The longitudinal length of described outer steel pipe and interior steel pipe is all identical, and the top end face of described outer steel pipe is mutually concordant with the top end face of interior steel pipe, and the bottom face of described outer steel pipe is mutually concordant with the bottom face of interior steel pipe; The top end face of the described longitudinal stiffener one of multiple tracks is all mutually concordant with the top end face of interior steel pipe, and the bottom face of the described longitudinal stiffener two of multiple tracks is all mutually concordant with the bottom face of interior steel pipe.
The SCS concrete pier of steel tube of stiffening rib is set up in above-mentioned a kind of end, it is characterized in that: every together middle part of described longitudinal stiffener one all has a plurality of through holes one from top to bottom, and a plurality of described a plurality of through holes one are laid on the same straight line; Every together middle part of described longitudinal stiffener two all has a plurality of through holes two from top to bottom, and a plurality of described through hole two is laid on the same straight line.
The SCS concrete pier of steel tube of stiffening rib is set up in above-mentioned a kind of end, it is characterized in that: the described longitudinal stiffener one of multiple tracks and the described longitudinal stiffener two of multiple tracks are all evenly laid along the circumferencial direction of interior steel pipe.
The SCS concrete pier of steel tube of stiffening rib is set up in above-mentioned a kind of end, it is characterized in that: the external diameter of described interior steel pipe is Φ 102mm～Φ 2000mm, the wall thickness of described outer steel pipe and interior 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 outer steel pipe is the cross-sectional area of the inboard hollow bulb of outer steel pipe, A2=π r
2And r is the external diameter of interior steel pipe.
The SCS concrete pier of steel tube of stiffening rib is set up in above-mentioned a kind of end, it is characterized in that: the described longitudinal stiffener one of multiple tracks is all identical with the quantity of the described longitudinal stiffener two of multiple tracks, and the described longitudinal stiffener two of multiple tracks be laid in respectively the described longitudinal stiffener one of multiple tracks under.
The SCS concrete pier of steel tube of stiffening rib is set up in above-mentioned a kind of end, it is characterized in that: the cross section of described outer steel pipe is circle, rectangle or regular polygon.
The SCS concrete pier of steel tube of stiffening rib is set up in above-mentioned a kind of end, it is characterized in that: a plurality of described through holes one and a plurality of described through hole two all are even laying from top to bottom, and the structure of a plurality of described through hole one and a plurality of described through holes two is all identical with size; The installation position of the quantity of the through hole of offering one and each through hole one is all identical on the described longitudinal stiffener one of multiple tracks; The installation position of the quantity of the through hole of offering two and each through hole two is all identical on the described longitudinal stiffener two of multiple tracks; Described top reinforcing structure also comprises the stirrup one that is laid on the described longitudinal stiffener one of multiple tracks from top to bottom, the described stirrup one of multiple tracks is parallel laying, the quantity of the described stirrup one of multiple tracks is identical with the quantity of a plurality of described through holes one, and the described stirrup one of multiple tracks passes in a plurality of described through hole one of opening on every together described longitudinal stiffener one respectively; Described bottom reinforcing structure also comprises the stirrup two that is laid on the described longitudinal stiffener two of multiple tracks from top to bottom, the described stirrup two of multiple tracks is parallel laying, the quantity of the described stirrup two of multiple tracks is identical with the quantity of a plurality of described through holes two, and the described stirrup two of multiple tracks passes in a plurality of described through hole two of opening on every together described longitudinal stiffener two respectively.
The SCS concrete pier of steel tube of stiffening rib is set up in above-mentioned a kind of end, it is characterized in that: the thickness of the described longitudinal stiffener one of multiple tracks and the described longitudinal stiffener two of multiple tracks is d1, d1≤D wherein, and D is the wall thickness of outer steel pipe; The wall thickness of described outer steel pipe is larger, and the thickness of the described longitudinal stiffener one of multiple tracks and the described longitudinal stiffener two of multiple tracks is all larger; The transverse width of every together described longitudinal stiffener one is all identical with spacing between steel pipe and the interior steel pipe outside its installation position place, and per the transverse width of one described longitudinal stiffener two is all identical with spacing between steel pipe and the interior steel pipe outside its installation position place.
The SCS concrete pier of steel tube of stiffening rib is set up in above-mentioned a kind of end, it is characterized in that: described through hole one is circular port one, and the aperture of described circular port one
Wherein d3 is the transverse width of described circular port one longitudinal stiffener one of living in; Described through hole two is circular port two, and the aperture of described circular port two
Wherein d5 is the transverse width of described circular port two longitudinal stiffeners two of living in.
The SCS concrete pier of steel tube of stiffening rib is set up in above-mentioned a kind of end, it is characterized in that: the longitudinal length of the described longitudinal stiffener one of multiple tracks all identical and its longitudinal length is 1m～1.5m; The longitudinal length of the described longitudinal stiffener two of multiple tracks all identical and its longitudinal length is 1m～1.5m.
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.
3, easy construction and result of use are good, and the mechanical property of the SCS steel tube concrete column construction spare of institute's construction molding 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 encased structures from the defective such as great, it utilizes the larger sectional area of outer steel pipe that the larger antitorque and bending resistance moment of inertia in cross section is provided, utilize interior steel pipe to effectively reduce volume of concrete and alleviate deadweight, and sandwich concrete is in the three dimension stress state and outer and inner tube is linked to be integral body.Thereby, the present invention can give full play to the form that the concrete filled steel tube node 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 steel pipe 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 the effective volume of concrete of steel pipe alleviates the purpose of deadweight in utilizing.
4, the concrete of pouring into a mould between the outer and inner 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 interior steel duct and interior steel pipe and the outer steel pipe and compare, the present invention can take full advantage of the intensity of built-in round steel pipe.
5, the lateral stability of steel pipe outside the upper and lower end parts of bridge pier is utilized the enhancing of perforate stiffening rib, and corresponding significant enhancing structure shear resistance, each ingredient with whole concrete pier of steel tube 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 concrete pier of steel tube upper and lower end parts.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, and the switching performance between great, outside steel pipe and its inner concrete that can solve effectively that existing concrete pier of steel tube exists is poor, outside steel pipe is little to the concrete cuff effect in inside, the various problems such as curvature easily occur upper and lower end parts.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention 1.
Fig. 2 is the internal construction schematic diagram of the embodiment of the invention 1.
Fig. 3 is the top structure schematic diagram of the embodiment of the invention 1.
Fig. 4 is the structural representation of the embodiment of the invention 2.
Fig. 5 is the structural representation of the embodiment of the invention 3.
Fig. 6 is the structural representation of the embodiment of the invention 4.
Fig. 7 is the structural representation of the embodiment of the invention 5.
Fig. 8 is the structural representation of the embodiment of the invention 6.
Fig. 9 is the structural representation of the embodiment of the invention 7.
Description of reference numerals:
1-outer steel pipe; 2-interior steel pipe; 3-1-longitudinal stiffener one;
3-2-longitudinal stiffener two; 4-concrete structure; 5-1-through hole one;
5-2-through hole two; 6-1-stirrup one; 6-2-stirrup two.
The specific embodiment
Such as Fig. 1, Fig. 2 and shown in Figure 3, the present invention includes outer steel pipe 1, be set in outer steel pipe 1 inside interior steel pipe 2, be laid in top reinforcing structure between outer steel pipe 1 top and interior steel pipe 2 tops, be laid between outer steel pipe 1 bottom and interior steel pipe 2 bottoms the bottom reinforcing structure and until described top reinforcing structure and described bottom reinforcing structure all lay finish after by the concrete structure 4 that is filled in the concreting moulding in the cavity between outer steel pipe 1 and the interior steel pipe 2, described interior steel pipe 2 is laid in the middle inside of outer steel pipe 1 for round steel pipe and its.Described outer steel pipe 1 and interior steel pipe 2 are coaxial laying.Described top reinforcing structure comprises multiple tracks longitudinal stiffener one 3-1, and described bottom reinforcing structure comprises multiple tracks longitudinal stiffener two 3-2, the cloth set direction of described longitudinal stiffener one 3-1 of multiple tracks and described longitudinal stiffener two 3-2 of the multiple tracks all central axial direction with described interior steel pipe 2 and outer steel pipe 1 is consistent, and described longitudinal stiffener one 3-1 of multiple tracks and described longitudinal stiffener two 3-2 of multiple tracks all are fastenedly connected with concrete structure 4 and are integrated.Described longitudinal stiffener one 3-1 of multiple tracks and described longitudinal stiffener two 3-2 of multiple tracks are strip steel floor, the inside wall of described longitudinal stiffener one 3-1 of multiple tracks and described longitudinal stiffener two 3-2 of multiple tracks all is fastenedly connected with the lateral wall of interior steel pipe 2 and is integrated, and the lateral wall of described longitudinal stiffener one 3-1 of multiple tracks and described longitudinal stiffener two 3-2 of multiple tracks all is fastenedly connected with the inside wall of outer steel pipe 1 and is integrated.Described longitudinal stiffener one 3-1 of multiple tracks and described longitudinal stiffener two 3-2 of multiple tracks all lay along the circumferencial direction of interior steel pipe 2.The longitudinal length of described outer steel pipe 1 and interior steel pipe 2 is all identical, and the top end face of described outer steel pipe 1 is mutually concordant with the top end face of interior steel pipe 2, and the bottom face of described outer steel pipe 1 is mutually concordant with the bottom face of interior steel pipe 2.The top end face of described longitudinal stiffener one 3-1 of multiple tracks is all mutually concordant with the top end face of interior steel pipe 2, and the bottom face of described longitudinal stiffener two 3-2 of multiple tracks is all mutually concordant with the bottom face of interior steel pipe 2.
In the present embodiment, every together middle part of described longitudinal stiffener one 3-1 all has a plurality of through hole one 5-1 from top to bottom, and a plurality of described a plurality of through hole one 5-1 are laid on the same straight line; Every together middle part of described longitudinal stiffener two 3-2 all has a plurality of through hole two 5-2 from top to bottom, and a plurality of described through hole two 5-2 are laid on the same straight line.
Actually add man-hour, the external diameter of described interior steel pipe 2 is Φ 102mm～Φ 2000mm, the wall thickness of described outer steel pipe 1 and interior steel pipe 2 is 4mm～66mm, and A1 ︰ A2=1 ︰ (0.6～0.8), A1=a1+b1 wherein, a1 is that cross-sectional area and the b1 of outer steel pipe 1 is the cross-sectional area of outer steel pipe 1 inboard hollow bulb, A2=π r
2And r is the external diameter of interior steel pipe 2.
In the present embodiment, the external diameter of described interior steel pipe 2 is that Φ 200mm and its wall thickness are 15mm.During actual the use, can be according to concrete needs, the external diameter of described interior steel pipe 2 is adjusted accordingly in the scope of Φ 102mm～2000mm, and the wall thickness of interior steel pipe 2 is adjusted accordingly in the scope of 4mm～66mm.
Actually add man-hour, the cross section of described outer steel pipe 1 is circular, rectangle or regular polygon.
In the present embodiment, the cross section of described outer steel pipe 1 is square.
Specifically add man-hour, the cross section of described outer steel pipe 1 also can adopt the shapes such as rectangle, circle, other regular polygon.
In the present embodiment, A1 ︰ A2=1 ︰ 0.7.During actual the use, can be according to concrete needs, the ratio value of A1 ︰ A2 is adjusted accordingly in the scope of 1 ︰ (0.6～0.8).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, A1 is preferably 4m
2～10m
2, and the wall thickness of described outer steel pipe 1 and interior steel pipe 2 all is preferably 18mm～25mm.
In the present embodiment, A1=D
2=6m
2, wherein D is the lateral wall length of side of described outer steel pipe 1.The wall thickness of described outer steel pipe 1 is 20mm.During actual the use, can be according to concrete needs with the cross-sectional area of described outer steel pipe 1 at 4m
2～10m
2Scope in adjust accordingly, and the wall thickness of outer steel pipe 1 is adjusted accordingly in the scope of 4mm～66mm.
During actual processing and fabricating, described longitudinal stiffener one 3-1 of multiple tracks and described longitudinal stiffener two 3-2 of multiple tracks all evenly lay along the circumferencial direction of interior steel pipe 2.In the present embodiment, described longitudinal stiffener one 3-1 of multiple tracks is all identical with the quantity of described longitudinal stiffener two 3-2 of multiple tracks, and described longitudinal stiffener two 3-2 of multiple tracks be laid in respectively described longitudinal stiffener one 3-1 of multiple tracks under.
The quantity of described longitudinal stiffener one 3-1 of multiple tracks and described longitudinal stiffener two 3-2 of multiple tracks is 4 roads～8 roads.
In the present embodiment, a plurality of described through hole one 5-1 and a plurality of described through hole two 5-2 all are even laying from top to bottom, and the structure of a plurality of described through hole one 5-1 and a plurality of described through hole two 5-2 is all identical with size.On described longitudinal stiffener one 3-1 of multiple tracks the quantity of the through hole of offering one 5-1 all identical with the installation position of each through hole one 5-1.On described longitudinal stiffener two 3-2 of multiple tracks the quantity of the through hole of offering two 5-2 all identical with the installation position of each through hole two 5-2.
Described top reinforcing structure also comprises stirrup one 6-1 that is laid on described longitudinal stiffener one 3-1 of multiple tracks from top to bottom, described stirrup one 6-1 of multiple tracks is parallel laying, the quantity of described stirrup one 6-1 of multiple tracks is identical with the quantity of a plurality of described through hole one 5-1, and described stirrup one 6-1 of multiple tracks passes in a plurality of described through hole one 5-1 that opens on every together described longitudinal stiffener one 3-1 respectively; Described bottom reinforcing structure also comprises stirrup two 6-2 that are laid on described longitudinal stiffener two 3-2 of multiple tracks from top to bottom, described stirrup two 6-2 of multiple tracks are parallel laying, the quantity of described stirrup two 6-2 of multiple tracks is identical with the quantity of a plurality of described through hole two 5-2, and described stirrup two 6-2 of multiple tracks pass in a plurality of described through hole two 5-2 that open on every together described longitudinal stiffener two 3-2 respectively.
In the present embodiment, the quantity of described PBL stiffening rib one 3-1 of multiple tracks and described PBL stiffening rib two 3-2 of multiple tracks is 4 roads, and described PBL stiffening rib one 3-1 in 4 roads is separately fixed at 4 sidewall middle parts of outer steel pipe 1, and described PBL stiffening rib two 3-2 in 4 roads are separately fixed at 4 sidewall middle parts of outer steel pipe 1.
And, the inside wall of described longitudinal stiffener one 3-1 in 4 roads and described longitudinal stiffener two 3-2 in 4 roads all is fastenedly connected with the lateral wall of welding manner and interior steel pipe 2 and is integrated, and the lateral wall of described longitudinal stiffener one 3-1 in 4 roads and described longitudinal stiffener two 3-2 in 4 roads all is fastenedly connected with the inside wall of welding manner and outer steel pipe 1 and is integrated.
In the present embodiment, described concrete structure 4 is carbon fiber reinforced concrete.
In the present embodiment, the thickness of described longitudinal stiffener one 3-1 of multiple tracks and described longitudinal stiffener two 3-2 of multiple tracks is d1, d1≤D wherein, and D is the wall thickness of outer steel pipe 1; The wall thickness of described outer steel pipe 1 is larger, and the thickness of described longitudinal stiffener one 3-1 of multiple tracks and described longitudinal stiffener two 3-2 of multiple tracks is all larger; The transverse width of every together described longitudinal stiffener one 3-1 is all identical with spacing between steel pipe 1 and the interior steel pipe 2 outside its installation position place, and per the transverse width of one described longitudinal stiffener two 3-2 is all identical with spacing between steel pipe 1 and the interior steel pipe 2 outside its installation position place.
Described through hole one 5-1 is circular port one, and the aperture of described circular port one
Wherein d3 is the transverse width of described circular port one longitudinal stiffener one 3-1 of living in; Described through hole two 5-2 are circular port two, and the aperture of described circular port two
Wherein d5 is the transverse width of described circular port two longitudinal stiffener two 3-2 of living in.
In the present embodiment, the transverse width of described longitudinal stiffener one 3-1 of multiple tracks is all identical with the transverse width of described longitudinal stiffener two 3-2 of multiple tracks.
During actual processing and fabricating, every together transverse width of described PBL stiffening rib one 3-1 is all identical with spacing between steel pipe 1 and the interior steel pipe 2 outside its installation position place; And every together transverse width of described PBL stiffening rib two 3-2 is all identical with spacing between steel pipe 1 and the interior steel pipe 2 outside its installation position place.And, can be according to concrete needs, with the transverse width of every together described PBL stiffening rib one 3-1 and PBL stiffening rib two 3-2, spacing between steel pipe 1 and the interior steel pipe 2 outside its installation position place respectively
Between adjust accordingly.Simultaneously, can be according to concrete needs, the quantity of described PBL stiffening rib one 3-1, PBL stiffening rib two 3-2 and described stirrup 6 is adjusted accordingly respectively.
In the present embodiment, the longitudinal length of described longitudinal stiffener one 3-1 of multiple tracks all identical and its longitudinal length is 1m～1.5m; The longitudinal length of described longitudinal stiffener two 3-2 of multiple tracks all identical and its longitudinal length is 1m～1.5m.
In the present embodiment, described concrete structure 4 is carbon fiber reinforced concrete.
As shown in Figure 4, in the present embodiment, as different from Example 1: the cross section of described outer steel pipe 1 is circular, A1 ︰ A2=1 ︰ 0.6, and the wall thickness of described outer steel pipe 1 and interior steel pipe 2 is 25mm, A1==π R
2=10m
2, wherein R is the external diameter of outer steel pipe 1.
In the present embodiment, the structure of remainder is all identical with embodiment 1 with annexation.
Embodiment 3
As shown in Figure 5, in the present embodiment, as different from Example 2: the quantity of described PBL stiffening rib one 3-1 and PBL stiffening rib two 3-2 is 6 roads.
In the present embodiment, the structure of remainder is all identical with embodiment 4 with annexation.
As shown in Figure 6, in the present embodiment, as different from Example 2: the cross section of described outer steel pipe 1 is positive ten hexagons, and the cross section of outer steel pipe 1 inboard hollow bulb is positive ten hexagonal holes, and the cross-sectional area of the cross-sectional area of the described outer steel pipe 1 of A1=+described positive ten hexagonal holes; The quantity of described PBL stiffening rib one 3-1 and described PBL stiffening rib two 3-2 is 8 roads, and described PBL stiffening rib one 3-1 in 8 roads and described PBL stiffening rib two 3-2 in 8 roads are fixed on 8 sidewalls middle parts of outer steel pipe 1 respectively.
In the present embodiment, the structure of remainder is all identical with embodiment 2 with annexation.
Embodiment 5
As shown in Figure 7, in the present embodiment, as different from Example 1: the cross section of described outer steel pipe 1 is regular hexagon, A1 ︰ A2=1 ︰ 0.8, and the wall thickness of described outer steel pipe 1 and interior steel pipe 2 is 25mm, A1=10m
2, the cross section of its China and foreign countries' steel pipe 1 inboard hollow bulb is the regular hexagon hole, and the cross-sectional area in the cross-sectional area of the described outer steel pipe 1 of A1=+described regular hexagon hole; The quantity of described PBL stiffening rib one 3-1 and described PBL stiffening rib two 3-2 is 6 roads, and 6 road PBL stiffening rib one 3-1 and described PBL stiffening rib two 3-2 are fixed on 6 sidewalls middle parts of outer steel pipe 1 respectively.During actual the use, the cross section of described outer steel pipe 1 also can be other regular polygon.
In the present embodiment, the structure of remainder is all identical with embodiment 1 with annexation.
As shown in Figure 8, in the present embodiment, as different from Example 1: the cross section of described outer steel pipe 1 is octagon, and the cross section of outer steel pipe 1 inboard hollow bulb is the octagon hole, and the cross-sectional area in the cross-sectional area of the described outer steel pipe 1 of A1=+described octagon hole; The quantity of described PBL stiffening rib one 3-1 and described PBL stiffening rib two 3-2 is 8 roads, and described PBL stiffening rib one 3-1 in 8 roads and described PBL stiffening rib two 3-2 in 8 roads are fixed on 8 sidewalls middle parts of outer steel pipe 1 respectively.
In the present embodiment, the structure of remainder is all identical with embodiment 1 with annexation.
As shown in Figure 9, in the present embodiment, as different from Example 6: the quantity of described PBL stiffening rib one 3-1 and described PBL stiffening rib two 3-2 is 4 roads, and 4 road PBL stiffening rib one 3-1 and described PBL stiffening rib two 3-2 in 4 roads are fixed on 4 sidewalls middle parts of outer steel pipe 1 respectively.
In the present embodiment, the structure of remainder is all identical with embodiment 6 with annexation.
Embodiment 8
In the present embodiment, as different from Example 1: every together transverse width of described PBL stiffening rib one 3-1 is outside its installation position place spacing between the steel pipe 1 and interior steel pipe 2
The aperture d2 of described through hole one 5-1 is
Every together transverse width of described PBL stiffening rib two 3-2 is outside its installation position place spacing between the steel pipe 1 and interior steel pipe 2
The aperture d2 of described through hole two 5-2 is
The external diameter of described interior steel pipe 2 is Φ 102mm, and the wall thickness of described outer steel pipe 1 and interior steel pipe 2 is 4mm, A1=4m
2
In the present embodiment, the structure of remainder is all identical with embodiment 1 with annexation.
Embodiment 9
In the present embodiment, as different from Example 1: every together transverse width of described PBL stiffening rib one 3-1 is outside its installation position place spacing between the steel pipe 1 and interior steel pipe 2
The aperture d2 of described circle is
Every together transverse width of described PBL stiffening rib two 3-1 is outside its installation position place spacing between the steel pipe 1 and interior steel pipe 2
The aperture d2 of described circular port is
The external diameter of described interior steel pipe 2 is Φ 1000mm, and the wall thickness of described outer steel pipe 1 and interior steel pipe 2 is 40mm, A1=8m
2
In the present embodiment, the structure of remainder is all identical with embodiment 1 with annexation.
Embodiment 10
In the present embodiment, as different from Example 1: every together transverse width of described PBL stiffening rib one 3-1 is outside its installation position place spacing between the steel pipe 1 and interior steel pipe 2
The aperture d2 of described through hole one 5-1 is
Every together transverse width of described PBL stiffening rib two 3-2 is outside its installation position place spacing between the steel pipe 1 and interior steel pipe 2
The aperture d2 of described through hole two 5-2 is
The external diameter of described interior steel pipe 2 is Φ 2000mm, and the wall thickness of described outer steel pipe 1 and interior steel pipe 2 is 66mm, A1=10m
2
In the present embodiment, the structure of remainder is all identical with embodiment 1 with annexation.
Embodiment 11
In the present embodiment, as different from Example 1: every together transverse width of described PBL stiffening rib two 3-2 is outside its installation position place spacing between the steel pipe 1 and interior steel pipe 2
The aperture d2 of described through hole two 5-2 is
The external diameter of described interior steel pipe 2 is Φ 2000mm, and the wall thickness of described outer steel pipe 1 and interior steel pipe 2 is 55mm, A1=10m
2
In the present embodiment, the structure of remainder is all identical with embodiment 1 with annexation.
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. the SCS concrete pier of steel tube of stiffening rib is set up in an end, it is characterized in that: comprise outer steel pipe (1), be set in the inner interior steel pipe (2) of outer steel pipe (1), be laid in the top reinforcing structure between outer steel pipe (1) top and interior steel pipe (2) top, be laid between outer steel pipe (1) bottom and interior steel pipe (2) bottom the bottom reinforcing structure and until described top reinforcing structure and described bottom reinforcing structure all lay finish after by the concrete structure (4) that is filled in the concreting moulding in the cavity between outer steel pipe (1) and the interior steel pipe (2), described interior steel pipe (2) is laid in the middle inside of outer steel pipe (1) for round steel pipe and its; Described outer steel pipe (1) and interior steel pipe (2) are coaxial laying; Described top reinforcing structure comprises multiple tracks longitudinal stiffener one (3-1), and described bottom reinforcing structure comprises multiple tracks longitudinal stiffener two (3-2), the cloth set direction of the described longitudinal stiffener one of multiple tracks (3-1) and the described longitudinal stiffener two of multiple tracks (3-2) all central axial direction with described interior steel pipe (2) and outer steel pipe (1) is consistent, and the described longitudinal stiffener one of multiple tracks (3-1) and the described longitudinal stiffener two of multiple tracks (3-2) all are fastenedly connected with concrete structure (4) and are integrated; The described longitudinal stiffener two of the described longitudinal stiffener one of multiple tracks (3-1) and multiple tracks (3-2) is strip steel floor, the inside wall of the described longitudinal stiffener two of the described longitudinal stiffener one of multiple tracks (3-1) and multiple tracks (3-2) all is fastenedly connected with the lateral wall of interior steel pipe (2) and is integrated, and the lateral wall of the described longitudinal stiffener one of multiple tracks (3-1) and the described longitudinal stiffener two of multiple tracks (3-2) all is fastenedly connected with the inside wall of outer steel pipe (1) and is integrated; The described longitudinal stiffener two of the described longitudinal stiffener one of multiple tracks (3-1) and multiple tracks (3-2) is all laid along the circumferencial direction of interior steel pipe (2); Described outer steel pipe (1) is all identical with the longitudinal length of interior steel pipe (2), and the top end face of described outer steel pipe (1) is mutually concordant with the top end face of interior steel pipe (2), and the bottom face of described outer steel pipe (1) is mutually concordant with the bottom face of interior steel pipe (2); The top end face of the described longitudinal stiffener one of multiple tracks (3-1) is all mutually concordant with the top end face of interior steel pipe (2), and the bottom face of the described longitudinal stiffener two of multiple tracks (3-2) is all mutually concordant with the bottom face of interior steel pipe (2).
2. set up the SCS concrete pier of steel tube of stiffening rib according to a kind of end claimed in claim 1, it is characterized in that: every together middle part of described longitudinal stiffener one (3-1) all has a plurality of through holes one (5-1) from top to bottom, and a plurality of described a plurality of through holes one (5-1) are laid on the same straight line; Every together middle part of described longitudinal stiffener two (3-2) all has a plurality of through holes two (5-2) from top to bottom, and a plurality of described through hole two (5-2) is laid on the same straight line.
3. set up the SCS concrete pier of steel tube of stiffening rib according to claim 1 or 2 described a kind of ends, it is characterized in that: the described longitudinal stiffener two of the described longitudinal stiffener one of multiple tracks (3-1) and multiple tracks (3-2) is all evenly laid along the circumferencial direction of interior steel pipe (2).
4. set up the SCS concrete pier of steel tube of stiffening rib according to claim 1 or 2 described a kind of ends, it is characterized in that: the external diameter of described interior steel pipe (2) is Φ 102mm～Φ 2000mm, the wall thickness of described outer steel pipe (1) and interior 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 outer steel pipe (1) is the cross-sectional area of the inboard hollow bulb of outer steel pipe (1), A2=π r
2And r is the external diameter of interior steel pipe (2).
5. set up the SCS concrete pier of steel tube of stiffening rib according to claim 1 or 2 described a kind of ends, it is characterized in that: the described longitudinal stiffener one of multiple tracks (3-1) is all identical with the quantity of the described longitudinal stiffener two of multiple tracks (3-2), and the described longitudinal stiffener two of multiple tracks (3-2) be laid in respectively the described longitudinal stiffener one of multiple tracks (3-1) under.
6. set up the SCS concrete pier of steel tube of stiffening rib according to claim 1 or 2 described a kind of ends, it is characterized in that: the cross section of described outer steel pipe (1) is circle, rectangle or regular polygon.
7. set up the SCS concrete pier of steel tube of stiffening rib according to a kind of end claimed in claim 2, it is characterized in that: a plurality of described through holes one (5-1) and a plurality of described through hole two (5-2) all are even laying from top to bottom, and the structure of a plurality of described through hole one (5-1) and a plurality of described through holes two (5-2) is all identical with size; On the described longitudinal stiffener one of multiple tracks (3-1) the quantity of the through hole of offering (5-1) all identical with the installation position of each through hole one (5-1); On the described longitudinal stiffener two of multiple tracks (3-2) the quantity of the through hole of offering two (5-2) all identical with the installation position of each through hole two (5-2); Described top reinforcing structure also comprises the stirrup one (6-1) that is laid on the described longitudinal stiffener one of multiple tracks (3-1) from top to bottom, the described stirrup one of multiple tracks (6-1) is parallel laying, the quantity of the described stirrup one of multiple tracks (6-1) is identical with the quantity of a plurality of described through holes one (5-1), and the described stirrup one of multiple tracks (6-1) passes in a plurality of described through hole one (5-1) of opening on every together described longitudinal stiffener one (3-1) respectively; Described bottom reinforcing structure also comprises the stirrup two (6-2) that is laid on the described longitudinal stiffener two of multiple tracks (3-2) from top to bottom, the described stirrup two of multiple tracks (6-2) is parallel laying, the quantity of the described stirrup two of multiple tracks (6-2) is identical with the quantity of a plurality of described through holes two (5-2), and the described stirrup two of multiple tracks (6-2) passes in a plurality of described through hole two (5-2) of opening on every together described longitudinal stiffener two (3-2) respectively.
8. set up the SCS concrete pier of steel tube of stiffening rib according to claim 1 or 2 described a kind of ends, it is characterized in that: the thickness of the described longitudinal stiffener two of the described longitudinal stiffener one of multiple tracks (3-1) and multiple tracks (3-2) is d1, d1≤D wherein, D is the wall thickness of outer steel pipe (1); The wall thickness of described outer steel pipe (1) is larger, and the thickness of the described longitudinal stiffener two of the described longitudinal stiffener one of multiple tracks (3-1) and multiple tracks (3-2) is all larger; The transverse width of every together described longitudinal stiffener one (3-1) is all identical with spacing between steel pipe (1) and the interior steel pipe (2) outside its installation position place, and per the transverse width of one described longitudinal stiffener two (3-2) is all identical with spacing between steel pipe (1) and the interior steel pipe (2) outside its installation position place.
9. set up the SCS concrete pier of steel tube of stiffening rib according to a kind of end claimed in claim 2, it is characterized in that: described through hole one (5-1) is circular port one, and the aperture of described circular port one
Wherein d3 is the transverse width of described circular port one longitudinal stiffener one of living in (3-1); Described through hole two (5-2) is circular port two, and the aperture of described circular port two
Wherein d5 is the transverse width of described circular port two longitudinal stiffeners two of living in (3-2).
10. set up the SCS concrete pier of steel tube of stiffening rib according to claim 1 or 2 described a kind of ends, it is characterized in that: the longitudinal length of the described longitudinal stiffener one of multiple tracks (3-1) all identical and its longitudinal length is 1m～1.5m; The longitudinal length of the described longitudinal stiffener two of multiple tracks (3-2) all identical and its longitudinal length is 1m～1.5m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210580150.5A CN102995555B (en) | 2012-12-27 | 2012-12-27 | Sequence control system (SCS) concrete filled steel tube bridge pier with stiffening ribs added at bottom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210580150.5A CN102995555B (en) | 2012-12-27 | 2012-12-27 | Sequence control system (SCS) concrete filled steel tube bridge pier with stiffening ribs added at bottom |
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| CN102995555A true CN102995555A (en) | 2013-03-27 |
| CN102995555B CN102995555B (en) | 2015-06-24 |
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| CN201210580150.5A Expired - Fee Related CN102995555B (en) | 2012-12-27 | 2012-12-27 | Sequence control system (SCS) concrete filled steel tube bridge pier with stiffening ribs added at bottom |
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Cited By (6)
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| CN103628403A (en) * | 2013-09-16 | 2014-03-12 | 安徽省交通规划设计研究院有限公司 | Tubular concrete bridge pier |
| CN104233948A (en) * | 2014-07-24 | 2014-12-24 | 中交公路长大桥建设国家工程研究中心有限公司 | Bridge tower or bridge pier with multi-compartment combined structure |
| CN109403205A (en) * | 2018-12-26 | 2019-03-01 | 中南大学 | Hollow sandwich multi-cavity steel tube concrete component and preparation method thereof |
| CN110029780A (en) * | 2019-05-13 | 2019-07-19 | 中州装备制造股份有限公司 | Skeleton and its production method of putting more energy into and equipment and structural reinforcement |
| CN110130214A (en) * | 2019-06-04 | 2019-08-16 | 姚攀峰 | A kind of bridge pier, bridge structure, king-post and construction method |
| CN110565975A (en) * | 2019-08-29 | 2019-12-13 | 武汉大学 | Method for self-compacting concrete reinforcing column by externally sleeved thin-wall steel pipe |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110130214A (en) * | 2019-06-04 | 2019-08-16 | 姚攀峰 | A kind of bridge pier, bridge structure, king-post and construction method |
| CN110565975A (en) * | 2019-08-29 | 2019-12-13 | 武汉大学 | Method for self-compacting concrete reinforcing column by externally sleeved thin-wall steel pipe |
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| CN102995555B (en) | 2015-06-24 |
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