CN211446571U - Stainless steel reinforced concrete slab stiffened dumbbell-shaped combined column - Google Patents
Stainless steel reinforced concrete slab stiffened dumbbell-shaped combined column Download PDFInfo
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- CN211446571U CN211446571U CN201922058167.4U CN201922058167U CN211446571U CN 211446571 U CN211446571 U CN 211446571U CN 201922058167 U CN201922058167 U CN 201922058167U CN 211446571 U CN211446571 U CN 211446571U
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Abstract
The utility model relates to a stainless steel reinforced concrete slab stiffening dumbbell type combination column, which comprises two stainless steel pipes, two stainless steel batten plates and two stainless steel reinforced concrete slabs, wherein the two stainless steel batten plates are welded on the outer walls of the two stainless steel pipes and connected with the two stainless steel pipes to form a dumbbell type column symmetrical along the center line of the steel pipes; seawater sea sand recycled concrete is filled in the stainless steel tubes; the two stainless steel batten plates and the outer walls of the two stainless steel pipes enclose a dumbbell-shaped column abdominal cavity, and concrete is not filled in the abdominal cavity; the stainless steel reinforced concrete slab is arranged on the outer sides of the two stainless steel batten plates, and the structure is simple.
Description
Technical Field
The utility model relates to a stainless steel reinforced concrete slab dumbbell type combination post of putting more energy into.
Background
Since the promotion of "one-by-one" construction, the construction of the human fate community is increasingly fruitful. In order to strengthen friendly connection and exchange among countries, higher requirements are put forward on various engineering constructions, particularly on the construction of offshore engineering.
Compared with the single circular tube section, the dumbbell-shaped section has higher compression rigidity, the bearing surface is far away from the central shaft, and the longitudinal bending rigidity is higher. However, when the existing dumbbell-shaped cross section is used for pouring the abdominal concrete, the web is easy to bulge outwards under the action of the concrete pressure, and the welding seam at the joint of the steel pipe and the web can be pulled apart to cause pipe burst accidents in severe cases. In order to prevent the situation, one of the existing treatment modes is to weld a transverse pull rod between the batten plates, but the resistance of pumping concrete is increased, the pressure in the batten plates is increased, the effect is intensified, the manufacturing construction process is complex, the stress concentration of the welding parts of the batten plates and the tie bars is easily caused, and the batten plates can be possibly bent; the other mode is that the main arch rib with the dumbbell-shaped section is not poured with concrete in the abdominal cavity, and stiffening H-shaped steel is only arranged inside the batten plate. The process of welding the H-shaped steel inside the abdominal cavity is complex, stress concentration is easily caused, and buckling of the batten plate is caused.
SUMMERY OF THE UTILITY MODEL
In view of the deficiencies of the prior art, the technical problem to be solved by the utility model is to provide a stainless steel reinforced concrete slab dumbbell type combination post of putting more energy into.
In order to solve the technical problem, the technical scheme of the utility model is that: a stainless steel reinforced concrete slab stiffening dumbbell-shaped combined column comprises two stainless steel pipes, two stainless steel batten plates and two stainless steel reinforced concrete slabs, wherein the two stainless steel batten plates are welded on the outer walls of the two stainless steel pipes and connected with the two stainless steel pipes to form a dumbbell-shaped column which is symmetrical along the connection line of the centroids of the steel pipes; seawater sea sand recycled concrete is filled in the stainless steel tubes; the two stainless steel batten plates and the outer walls of the two stainless steel pipes enclose a dumbbell-shaped column abdominal cavity, and concrete is not filled in the abdominal cavity; the stainless steel reinforced concrete slabs are all arranged on the outer sides of the two stainless steel batten plates.
Preferably, the outer contour of the stainless steel pipe is circular.
Preferably, the stainless steel reinforced concrete plates are all formed by pouring a stainless steel reinforcement framework and seawater sea sand recycled concrete.
Preferably, the stainless steel pipe all welds on the periphery wall that is located two outsides of abdominal cavity has the stainless steel board, and stainless steel bar skeleton comprises vertical stainless steel reinforcing bar and horizontal stainless steel reinforcing bar, and horizontal stainless steel reinforcing bar and vertical stainless steel reinforcing bar intersect perpendicularly, and horizontal stainless steel reinforcing bar is more than two-layer, and both ends welding is on the stainless steel board, and vertical stainless steel reinforcing bar all welds on every horizontal stainless steel reinforcing bar.
Preferably, horizontal stainless steel bar is along vertical equidistant distribution, and outermost horizontal stainless steel bar should satisfy the minimum thickness requirement of protective layer apart from the concrete edge distance, and every layer of horizontal stainless steel bar interval should satisfy the standard requirement.
Preferably, the transverse stainless steel bars and the vertical stainless steel bars in the stainless steel reinforced concrete plate can be one of plain steel bars or ribbed steel bars.
Preferably, the welding angle of the stainless steel plate is parallel to the connecting line of the centroids of the two stainless steel pipes.
Preferably, fillet welds are adopted between the stainless steel batten plate and the stainless steel pipe and between the stainless steel plate and the stainless steel pipe.
Compared with the prior art, the utility model discloses following beneficial effect has: the structural form is dumbbell type steel pipe concrete column, and bearing capacity is high, and the ductility is good. Therefore, the bridge can be used for structural members mainly stressed, such as an arch rib structure, and can also be used as a design scheme of a high bridge pier, when the bridge is applied to a cross-river and cross-sea bridge, the cross bridge of the bridge pier is in a circular cross section, water flow is facilitated, and the influence of hydrodynamic pressure on the structure and the scouring on the bridge pier are reduced. Meanwhile, the stainless steel reinforced concrete plate is used for stiffening, the pipe explosion accident of the dumbbell-shaped stainless steel pipe column is effectively avoided, buckling of the batten plate caused by the arrangement of the H-shaped steel in the abdominal cavity is avoided, the later repairing and maintaining cost is reduced, and the whole life cycle cost is reduced.
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Drawings
Fig. 1 is a top view of an embodiment of the present invention.
Fig. 2 is the utility model discloses reinforcing bar distribution elevation.
Detailed Description
In order to make the aforementioned and other features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
As shown in fig. 1-2, a stainless steel reinforced concrete slab stiffening dumbbell-shaped combined column comprises two stainless steel tubes 1, two stainless steel batten plates 2 and two stainless steel reinforced concrete slabs 3, wherein the two stainless steel batten plates are welded on the outer walls of the two stainless steel tubes and connected with the two stainless steel tubes to form a dumbbell-shaped column symmetrical along the center line of the steel tubes; seawater and sea sand recycled concrete 4 is filled in the stainless steel pipes; the two stainless steel batten plates and the outer walls of the two stainless steel pipes form a dumbbell-shaped column abdominal cavity 5 in an enclosing mode, and concrete is not filled in the abdominal cavity; the stainless steel reinforced concrete slabs are all arranged on the outer sides of the two stainless steel batten plates.
In the embodiment of the utility model, the outline of stainless steel pipe is circular.
In the embodiment of the utility model provides an in, stainless steel reinforced concrete board is pour by stainless steel framework 6 and sea water sea sand recycled concrete and is formed.
The embodiment of the utility model provides an in, stainless steel pipe has all welded stainless steel 7 on the periphery wall that is located two outsides of abdominal cavity, and stainless steel skeleton comprises vertical stainless steel reinforcing bar 8 and horizontal stainless steel reinforcing bar 9, and horizontal stainless steel reinforcing bar intersects with vertical stainless steel reinforcing bar perpendicularly, and horizontal stainless steel reinforcing bar is more than two-layer, and both ends welding all welds on stainless steel, vertical stainless steel reinforcing bar all welds on every horizontal stainless steel reinforcing bar.
The embodiment of the utility model provides an in, horizontal stainless steel bar should satisfy the minimum thickness requirement of protective layer from concrete edge distance along vertical equidistant distribution, outmost horizontal stainless steel bar, and every layer of horizontal stainless steel bar interval should satisfy the standard requirement.
The embodiment of the utility model provides an in, horizontal stainless steel reinforcing bar and vertical stainless steel reinforcing bar among the stainless steel reinforced concrete slab can be for one in plain steel reinforcing bar or the ribbed steel bar.
In the embodiment of the utility model, stainless steel plate welding angle is on a parallel with two stainless steel pipe centroids line.
In the embodiment of the utility model provides an in, all adopt fillet weld welding between stainless steel lacing plate and the stainless steel pipe, between stainless steel sheet and the stainless steel pipe.
A construction method of a stainless steel reinforced concrete slab stiffened dumbbell-shaped combination column comprises the following steps: prefabricating stainless steel pipes with the same diameter according to the design size, welding stainless steel batten plates and the stainless steel pipes by using fillet welds, wherein the two stainless steel batten plates are parallel to the centroid connecting line of the two stainless steel pipes to preliminarily form a dumbbell-shaped steel pipe column; welding a stainless steel plate and a stainless steel pipe by using a fillet weld, wherein the stainless steel plate is parallel to the stainless steel batten plate; welding two ends of the transverse stainless steel bars on the stainless steel plate at equal intervals, and then welding the vertical stainless steel bars with each transverse stainless steel bar to form a stainless steel bar framework; erecting a template outside the stainless steel batten plate to facilitate pouring of a stainless steel reinforced concrete plate for stiffening; uniformly stirring seawater and sea sand recycled concrete according to proportion gradation, firstly pouring the recycled concrete between a template and a stainless steel batten plate, and vibrating the recycled concrete to be compact; then pouring the mixture into a stainless steel tube, and vibrating the mixture to be compact.
The embodiment of the utility model provides an in, sea water sea sand recycled concrete is poured by the even stirring of original state sea sand, the fine aggregate of building waste regeneration, the coarse aggregate of building waste regeneration, sea water and fly ash according to certain proportion gradation and forms. The stainless steel tube, the stainless steel batten plate, the stainless steel plate and the steel bar can be made of one or more of austenitic stainless steel, ferritic stainless steel, martensitic stainless steel, austenitic-ferritic stainless steel and the like. For projects of coastal areas and island construction, local materials are obtained, seawater and undisturbed sea sand are directly adopted, and the recycled coarse aggregate is used for preparing concrete, so that the problem of resource shortage at present can be solved, building wastes can be consumed, the method is a way for realizing sustainable development of concrete, and is consistent with circular economy and green economy which are vigorously advocated in China at present. The river sand is replaced by the undisturbed sea sand comprehensively, so that the engineering cost generated by remotely adjusting the river sand is saved, the engineering construction period is shortened, the engineering economy is enhanced, and the development of various ocean engineering is promoted. Because the particle size difference between the undisturbed sea sand and the recycled coarse aggregate is large, the recycled fine aggregate is added to replace part of the sea sand, so that the particle size distribution of the concrete can be adjusted, the use of machine-made sand can be avoided, non-renewable resources are saved, and the method conforms to the policy of sustainable development. Under the condition of meeting the structural bearing capacity required by engineering, building wastes are consumed, ocean resources are fully utilized, non-renewable resources are protected, the engineering construction cost is saved, the environment friendliness, ecology, economy and sustainability are realized, the pipe explosion accident of the dumbbell-shaped stainless steel pipe column is avoided, the later-stage repairing and maintaining cost is reduced, and the whole life cycle cost is reduced.
The utility model discloses not limit to above-mentioned best mode, anybody can all derive the stainless steel reinforced concrete slab dumbbell type combination post of putting more energy into of other various forms under the teaching of the utility model. All the equivalent changes and modifications made according to the claims of the present invention shall fall within the scope of the present invention.
Claims (8)
1. The utility model provides a stainless steel reinforced concrete slab dumbbell type combination post of putting more energy into which characterized in that: the dumbbell-shaped steel tube comprises two stainless steel tubes, two stainless steel batten plates and two stainless steel reinforced concrete plates, wherein the two stainless steel batten plates are welded on the outer walls of the two stainless steel tubes and connected with the two stainless steel tubes to form a dumbbell-shaped column which is symmetrical along the connection line of the centroids of the two stainless steel tubes; seawater sea sand recycled concrete is filled in the stainless steel tubes; the two stainless steel batten plates and the outer walls of the two stainless steel pipes enclose a dumbbell-shaped column abdominal cavity, and concrete is not filled in the abdominal cavity; the stainless steel reinforced concrete slabs are all arranged on the outer sides of the two stainless steel batten plates.
2. The stainless steel reinforced concrete panel stiffened dumbbell-type combination column of claim 1, wherein: the outline of the stainless steel pipe is circular.
3. The stainless steel reinforced concrete panel stiffened dumbbell-type combination column of claim 1, wherein: the stainless steel reinforced concrete slab is formed by pouring a stainless steel reinforcement framework and seawater sea sand recycled concrete.
4. The stainless steel reinforced concrete panel stiffened dumbbell type combination column of claim 3, wherein: stainless steel pipe all welds on the periphery wall that is located two outsides in the abdominal cavity has the stainless steel board, and stainless steel bar skeleton comprises vertical stainless steel reinforcing bar and horizontal stainless steel reinforcing bar, and horizontal stainless steel reinforcing bar and vertical stainless steel reinforcing bar intersect perpendicularly, and horizontal stainless steel reinforcing bar is more than two-layer, and both ends welding all welds on every horizontal stainless steel reinforcing bar on the stainless steel board, vertical stainless steel reinforcing bar.
5. The stainless steel reinforced concrete panel stiffened dumbbell-type combination column of claim 4, wherein: the horizontal stainless steel reinforcing bar distributes along vertical equidistant, and the outermost horizontal stainless steel reinforcing bar should satisfy the minimum thickness requirement of protective layer from concrete edge distance, and every layer of horizontal stainless steel reinforcing bar interval should satisfy the standard requirement.
6. The stainless steel reinforced concrete panel stiffened dumbbell-type combination column of claim 4, wherein: the transverse stainless steel bars and the vertical stainless steel bars in the stainless steel reinforced concrete slab are smooth steel bars or ribbed steel bars.
7. The stainless steel reinforced concrete panel stiffened dumbbell-type combination column of claim 4, wherein: the welding angle of the stainless steel plate is parallel to the connecting line of the centroids of the two stainless steel pipes.
8. The stainless steel reinforced concrete panel stiffened dumbbell-type combination column of claim 4, wherein: fillet welds are adopted between the stainless steel batten plate and the stainless steel pipe and between the stainless steel plate and the stainless steel pipe.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922058167.4U CN211446571U (en) | 2019-11-26 | 2019-11-26 | Stainless steel reinforced concrete slab stiffened dumbbell-shaped combined column |
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| CN201922058167.4U CN211446571U (en) | 2019-11-26 | 2019-11-26 | Stainless steel reinforced concrete slab stiffened dumbbell-shaped combined column |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110924292A (en) * | 2019-11-26 | 2020-03-27 | 福州大学 | Stainless steel reinforced concrete slab stiffening dumbbell-shaped combination column and construction method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110924292A (en) * | 2019-11-26 | 2020-03-27 | 福州大学 | Stainless steel reinforced concrete slab stiffening dumbbell-shaped combination column and construction method thereof |
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