CN103422620B - A kind of prefabricated hollow profile steel concrete column and splicing construction thereof and joining method - Google Patents
A kind of prefabricated hollow profile steel concrete column and splicing construction thereof and joining method Download PDFInfo
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- CN103422620B CN103422620B CN201310376730.7A CN201310376730A CN103422620B CN 103422620 B CN103422620 B CN 103422620B CN 201310376730 A CN201310376730 A CN 201310376730A CN 103422620 B CN103422620 B CN 103422620B
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Abstract
The invention discloses a kind of prefabricated hollow profile steel concrete column, comprise center steel pipe, concrete, several longitudinal reinforcements and the stirrup of colligation on longitudinal reinforcement; Described center steel pipe, longitudinal reinforcement and stirrup are all wrapped in concrete, the two ends of center steel pipe and the two ends of longitudinal reinforcement all reach outside concrete upper and lower both ends of the surface, and the length that center steel pipe stretches out concrete end face is greater than the length that longitudinal reinforcement stretches out concrete end face; The side of steel pipe upper end, described center is provided with several holes for hoist, and the two ends up and down of concrete side are equipped with and penetrate center steel pipe and concrete erection bolt hole.Present invention also offers a kind of splicing construction and joining method of prefabricated hollow profile steel concrete column, effectively can be improved the utilization rate of speed of application and resource by the present invention.
Description
Technical field
The present invention relates to building engineering field, be specifically related to a kind of prefabricated hollow profile steel concrete column and splicing construction thereof and joining method.
Background technology
Steel reinforced concrete is applied very extensive in engineering as a kind of composite material, it has played composition material advantage separately cleverly, has good techno-economic effect.Researcher and engineers have carried out a large amount of Researching and practicing to steel reinforced concrete material, and the basic framework of current steel reinforced concrete structure theory is formed, and have published a series of monograph, are the most important foundation stones of steel reinforced concrete structure extensive use.Meanwhile create a collection of patent relevant with profile steel concrete column, Liu Zhiguo etc. have applied for " composite steel concrete column and rc-frame-beam combination construction " utility model patent (application number 201020232784.8) by name, Chen Yiyan etc. have applied for " a kind of compound cross-section concrete filled steel tube coupled column " utility model patent (application number 201220230417.3) by name, Liu Yongjian etc. have applied for the hollow steel pipe column construction of concrete outsourcing " external based on stiffening rib with " by name utility model patent (application number 201220047141.5), in addition some related application documents are still had not enumerate one by one.Above-mentioned all steel reinforced concrete structures all require concreting at the construction field (site), and most post is solid, can obtain higher bearing capacity like this, add the deadweight of profile steel concrete column simultaneously.As everyone knows, steel reinforced concrete structure produces in conjunction with the advantage of steel work and concrete structure, but the concrete cast-in-situ mode of production makes this structure have superiority unlike concrete structure in speed of application and resource consumption.
Summary of the invention
The object of the invention is to the shortcoming overcoming above-mentioned prior art, provide a kind of prefabricated hollow profile steel concrete column and splicing construction thereof and joining method, this concrete column and splicing construction thereof and joining method effectively can improve the utilization rate of speed of application and resource.
For achieving the above object, prefabricated hollow profile steel concrete column of the present invention comprises center steel pipe, concrete, several longitudinal reinforcements and the stirrup of colligation on longitudinal reinforcement;
Described center steel pipe, longitudinal reinforcement and stirrup are all wrapped in concrete, the two ends of center steel pipe and the two ends of longitudinal reinforcement all reach outside concrete upper and lower both ends of the surface, and the length that center steel pipe stretches out concrete end face is greater than the length that longitudinal reinforcement stretches out concrete end face;
The side of steel pipe upper end, described center is provided with several holes for hoist, and the two ends up and down of concrete side are equipped with and penetrate center steel pipe and concrete erection bolt hole;
Be provided with steam vent in described concrete, an opening of steam vent is located at concrete side, and another opening is located on concrete lower surface.
The external surface of described center steel pipe is connected with several anti-shearing connectors, and anti-shearing connector is wrapped in concrete.
Described longitudinal reinforcement is arranged at around the steel pipe of center uniformly;
The uniform colligation of described stirrup is on longitudinal reinforcement.
The cross section of described center steel pipe is square;
The quantity of described longitudinal reinforcement is 12;
Described concrete is square-tube type structure.
Accordingly, present invention also offers a kind of splicing construction of prefabricated hollow profile steel concrete column, comprise the template of at least two prefabricated hollow profile steel concrete column of mutually splicing, reinforcing bar, splicing sleeve, dummy coupling and the splicing regions for closed adjacent two prefabricated hollow profile steel concrete column;
Described dummy coupling is made up of the straight-bar of upper end, bottom and adjustable in length, upper end and bottom are equipped with hole, hole on bottom is connected with the erection bolt hole of first prefabricated hollow profile steel concrete column upper end, and the hole on upper end is connected with the erection bolt hole of second prefabricated hollow profile steel concrete column lower end;
The two ends of described reinforcing bar are connected with the upper end of longitudinal reinforcement in the lower end of longitudinal reinforcement in second prefabricated hollow profile steel concrete column and first prefabricated hollow profile steel concrete column respectively by two splicing sleeves;
Described template is provided with the note concrete port for pouring into slightly expanded concrete.
The tube wall of described splicing sleeve is evenly provided with three or four notches.
Described straight-bar is provided with the adjusting nut for regulating straight-bar length.
Accordingly, present invention also offers a kind of joining method of prefabricated hollow profile steel concrete column, comprise the following steps:
1) crane is connected with the hole for hoist in first prefabricated hollow profile steel concrete column, and by crane, first prefabricated hollow profile steel concrete column is winched to installation site; Then crane is connected with the hole for hoist in second prefabricated hollow profile steel concrete column, and lift by crane second prefabricated hollow profile steel concrete column, the upper surface of center steel pipe in the lower surface of center steel pipe in second prefabricated hollow profile steel concrete column and first prefabricated hollow profile steel concrete column is matched;
2) by dummy coupling, the erection bolt hole of the erection bolt hole of first prefabricated hollow profile steel concrete column upper end with second prefabricated hollow profile steel concrete column lower end is connected, and then height and the verticality by regulating the length of straight-bar to adjust second prefabricated hollow profile steel concrete column;
3) upper surface of center steel pipe in first prefabricated hollow profile steel concrete column is welded with the lower surface of center steel pipe in second prefabricated hollow profile steel concrete column, and form center steel pipe splicing welding joint, by reinforcing bar and splicing sleeve, the upper end of longitudinal reinforcement in first prefabricated hollow profile steel concrete column is welded mutually with the lower end of longitudinal reinforcement in second prefabricated hollow profile steel concrete column again, then colligation stirrup on reinforcing bar, during colligation stirrup, the density of splicing regions colligation stirrup is greater than the density of non-splicing regions colligation stirrup;
4) installation form, and inject slightly expanded concrete by note concrete port to splicing regions, when steam vent has cement to flow out, the concrete perfusion of splicing regions completes;
5), after the concrete setting of the splicing regions such as, stripping and dummy coupling, can complete the splicing of first prefabricated hollow profile steel concrete column and second prefabricated hollow profile steel concrete column.
The present invention has following beneficial effect:
The present invention adopts the mode of production of prefabrication hollow type steel concrete column, on-the-spot splicing; can produce in factory during prefabricated hollow profile steel concrete column; effectively save the time of building steel concrete column; large-scale plant produced is convenient to pool utilization and the Mass Control of material; compared with job site; production environment in factory and labor safety devices better, can effectively reduce labor strength, better the safety and Health of protection workman.In addition, northern China cold district affects need stop concreting by temperature winter, if adopt prefabricated hollow profile steel concrete column, because splice region is less, be easy to realize heating and thermal insulation, the teletostage can normal construction, has better applicability for the building that the duration is tight.In addition, prefabricated hollow profile steel concrete column of the present invention is provided with center steel pipe, effectively can reduce the deadweight of prefabricated hollow profile steel concrete column, by concrete, center steel pipe is wrapped up simultaneously, thus the center steel pipe of avoiding is subject to fire or corrosion and impaired, and then effectively raise life-span and the safety of prefabricated hollow profile steel concrete column.In splicing, erection bolt hole in two adjacent prefabricated hollow profile steel concrete column is connected by dummy coupling, can be corrected verticality and the height of described prefabricated hollow profile steel concrete column by the length of adjustment dummy coupling upper connecting rod, what make concatenation construction become very is simple.
Accompanying drawing explanation
Fig. 1 is the structural representation of prefabricated hollow profile steel concrete column of the present invention;
Fig. 2 is prefabricated hollow profile steel concrete column of the present invention splicing schematic diagram;
Fig. 3 prefabricated hollow profile steel concrete column of the present invention cross-sectional drawing;
The connection diagram of longitudinal reinforcement 3 in Fig. 4 the present invention;
Fig. 5 (a) is the structural representation of splicing sleeve in the present invention 4, and Fig. 5 (b) is the structural representation in splicing sleeve 4 cross section;
Fig. 6 is the structural representation of dummy coupling 5 in the present invention;
Fig. 7 is the splicing schematic diagram of prefabricated hollow profile steel concrete column in the present invention.
Wherein, steel pipe, 2 is concrete, 3 centered by 1 is longitudinal reinforcement, 4 be splicing sleeve, 5 be dummy coupling, 6 be stirrup, 7 be template, 11 be hole for hoist, 12 center steel pipe splicing welding joints, 13 are anti-shearing connector, 21 be erection bolt hole, 22 steam vents, 41 are notch, 51 bottoms, 52 are straight-bar, 53 be adjusting nut, 54 be upper end, 71 be note concrete port.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail:
With reference to figure 1 and Fig. 3, prefabricated hollow profile steel concrete column of the present invention comprises center steel pipe 1, concrete 2, several longitudinal reinforcements 3 and the stirrup 6 of colligation on longitudinal reinforcement 3; Described longitudinal reinforcement 3 is arranged at center steel pipe 1 around uniformly; The longitudinal uniform colligation of described stirrup 6 is on longitudinal reinforcement 3, described center steel pipe 1, longitudinal reinforcement 3 and stirrup 6 are all wrapped in concrete 2, the two ends of center steel pipe 1 and the two ends of longitudinal reinforcement 3 all reach outside the both ends of the surface up and down of concrete 2, the length that center steel pipe 1 stretches out concrete 2 end face is greater than the length that longitudinal reinforcement 3 stretches out concrete 2 end face, the external surface of described center steel pipe 1 is connected with several anti-shearing connectors 13, and anti-shearing connector 13 is wrapped in concrete 2.The side of center steel pipe 1 upper end is provided with several holes for hoist 11, and the two ends up and down of concrete 2 side are equipped with the erection bolt hole 21 penetrating center steel pipe 1 and concrete 2.Be provided with steam vent 22 in described concrete 2, an opening of steam vent 22 is located at the side of concrete 2, and another opening is located on the lower surface of concrete 2.
In addition, specifically, the cross section of the center steel pipe 1 in prefabricated hollow profile steel concrete column of the present invention is square, the number of longitudinal reinforcement 3 is 12, described concrete 2 is square-tube type structure, the upper end, four sides of described concrete 2 is equipped with two erection bolt holes 21, and the lower end of four sides of concrete 2 is equipped with a steam vent 22 and two erection bolt holes 21, and the lower end of steam vent 22 is all located in two erection bolt holes 21 of lower end, four sides simultaneously.Four sides of described center steel pipe 1 are equipped with a hole for hoist 11.
Accordingly, with reference to figure 2, Fig. 4, Fig. 5 a, Fig. 5 b and Fig. 6, the splicing construction of a kind of prefabricated hollow profile steel concrete column of the present invention, comprises the template 7 of at least two prefabricated hollow profile steel concrete column of mutually splicing, reinforcing bar, splicing sleeve 4, dummy coupling 5 and the splicing regions for closed adjacent two prefabricated hollow profile steel concrete column; The tube wall of described splicing sleeve 4 is evenly provided with three or four notches 41.Described dummy coupling 5 is made up of the straight-bar 52 of upper end 54, bottom 51 and adjustable in length, upper end 54 and bottom 51 are equipped with hole, hole on bottom 51 is connected with the erection bolt hole 21 of first prefabricated hollow profile steel concrete column upper end, and the hole on upper end 54 is connected with the erection bolt hole 21 of second prefabricated hollow profile steel concrete column lower end; Described straight-bar 52 is provided with the adjusting nut 53 of the length for regulating straight-bar 52, and the two ends of described reinforcing bar are connected with the upper end of longitudinal reinforcement 3 in the lower end of longitudinal reinforcement 3 in second prefabricated hollow profile steel concrete column and first prefabricated hollow profile steel concrete column respectively by two splicing sleeves 4; Described template 7 is provided with the note concrete port 71 for pouring into slightly expanded concrete.
Accordingly, with reference to figure 7, present invention also offers a kind of joining method of prefabricated hollow profile steel concrete column, comprise the following steps:
1) crane is connected with the hole for hoist 11 in first prefabricated hollow profile steel concrete column, and by crane, first prefabricated hollow profile steel concrete column is winched to installation site; Then crane is connected with the hole for hoist 11 in second prefabricated hollow profile steel concrete column, and lift by crane second prefabricated hollow profile steel concrete column, the upper surface of center steel pipe 1 in the lower surface of center steel pipe 1 in second prefabricated hollow profile steel concrete column and first prefabricated hollow profile steel concrete column is matched;
2) by dummy coupling 5, the erection bolt hole 21 of the erection bolt hole 21 of first prefabricated hollow profile steel concrete column upper end with second prefabricated hollow profile steel concrete column lower end is connected, and then height and the verticality by regulating the length of straight-bar 52 to adjust second prefabricated hollow profile steel concrete column
3) upper surface of center steel pipe 1 in first prefabricated hollow profile steel concrete column is welded mutually with the lower surface of center steel pipe 1 in second prefabricated hollow profile steel concrete column, and form center steel pipe splicing welding joint 12, by reinforcing bar and splicing sleeve 4, the upper end of longitudinal reinforcement 3 in first prefabricated hollow profile steel concrete column is welded with the lower end of longitudinal reinforcement 3 in second prefabricated hollow profile steel concrete column again, then colligation stirrup 6 on reinforcing bar, during colligation stirrup 6, the density of splicing regions colligation stirrup 6 is greater than the density of non-splicing regions colligation stirrup 6;
4) installation form 7, and inject slightly expanded concrete by note concrete port 71 to splicing regions, when steam vent 22 has cement paste to flow out, the concrete perfusion of splicing regions completes;
5), after the concrete setting of the splicing regions such as, stripping 7 and dummy coupling 5, complete the splicing of first prefabricated hollow profile steel concrete column and second prefabricated hollow profile steel concrete column.
Concrete, first prefabricated hollow profile steel concrete column and second prefabricated hollow profile steel concrete column are winched to installation site by hole for hoist 11 by crane, then in erection bolt hole 21, Screw arbor with nut at both-ends is worn, Screw arbor with nut at both-ends passes upper end 54 and the bottom 51 of dummy coupling 5, first prefabricated hollow profile steel concrete column, second prefabricated hollow profile steel concrete column and dummy coupling 5 are bolted, and then rotate height and the verticality that adjusting nut 53 adjusts prefabricated hollow profile steel concrete column, itself and design and installation position are matched.Then the center steel pipe 1 two sections being spliced prefabricated hollow profile steel concrete column is welded to each other, and forms center steel pipe splicing welding joint 12.After center steel pipe 1 has spliced, be enclosed within the joint location of longitudinal reinforcement 3 with reinforcement welding splicing sleeve 4, make interface be positioned at the positive middle part of reinforcement welding splicing sleeve 4, then plug welding in bar shaped notch 41, two sections of longitudinal reinforcements 3 are linked into an integrated entity.At splice region colligation stirrup 6, the layout of stirrup 6 need be encrypted than non-splice region.Finally, install template 7 splice region is closed, inject slightly expanded concrete by note concrete port 71 to splice region, concrete perfusion will produce certain pressure in splice region and with filling with shaking, when steam vent 22 has cement paste to flow out, splice region filling concrete completes.
Claims (6)
1. the joining method of a prefabricated hollow profile steel concrete column, based on the splicing construction of prefabricated hollow profile steel concrete column, it is characterized in that, the splicing construction of described prefabricated hollow profile steel concrete column comprises the template (7) of at least two prefabricated hollow profile steel concrete column of mutually splicing, reinforcing bar, splicing sleeve (4), dummy coupling (5) and the splicing regions for closed adjacent two prefabricated hollow profile steel concrete column;
Described prefabricated hollow profile steel concrete column comprises center steel pipe (1), concrete (2), several longitudinal reinforcements (3) and the colligation stirrup (6) on longitudinal reinforcement (3);
Described center steel pipe (1), longitudinal reinforcement (3) and stirrup (6) are all wrapped in concrete (2), the two ends of center steel pipe (1) and the two ends of longitudinal reinforcement (3) all reach outside the both ends of the surface up and down of concrete (2), and the length that center steel pipe (1) stretches out concrete (2) end face is greater than the length that longitudinal reinforcement (3) stretches out concrete (2) end face;
The side of steel pipe (1) upper end, described center is provided with several holes for hoist (11), and the two ends up and down of concrete (2) side are equipped with the erection bolt hole (21) penetrating center steel pipe (1) and concrete (2);
Be provided with steam vent (22) in described concrete (2), an opening of steam vent (22) is located at the side of concrete (2), and another opening is located on the lower surface of concrete (2);
Described dummy coupling (5) is made up of the straight-bar (52) of upper end (54), bottom (51) and adjustable in length, upper end (54) and bottom (51) are equipped with hole, hole on bottom (51) is connected with the erection bolt hole (21) of first prefabricated hollow profile steel concrete column upper end, and the hole on upper end (54) is connected with the erection bolt hole (21) of second prefabricated hollow profile steel concrete column lower end;
The two ends of described reinforcing bar are connected with the upper end of longitudinal reinforcement (3) in the lower end of longitudinal reinforcement (3) in second prefabricated hollow profile steel concrete column and first prefabricated hollow profile steel concrete column respectively by two splicing sleeves (4);
Described template (7) is provided with the note concrete port (71) for pouring into slightly expanded concrete;
Comprise the following steps:
1) crane is connected with the hole for hoist (11) in first prefabricated hollow profile steel concrete column, and by crane, first prefabricated hollow profile steel concrete column is winched to installation site; Then crane is connected with the hole for hoist (11) in second prefabricated hollow profile steel concrete column, and lift by crane second prefabricated hollow profile steel concrete column, the upper surface of center steel pipe (1) in the lower surface of center steel pipe (1) in second prefabricated hollow profile steel concrete column and first prefabricated hollow profile steel concrete column is matched;
2) by dummy coupling (5), the erection bolt hole (21) of first prefabricated hollow profile steel concrete column upper end is connected with the erection bolt hole (21) of second prefabricated hollow profile steel concrete column lower end, and then height and the verticality by regulating the length of straight-bar (52) to adjust second prefabricated hollow profile steel concrete column;
3) upper surface of center steel pipe (1) in first prefabricated hollow profile steel concrete column is welded mutually with the lower surface of center steel pipe (1) in second prefabricated hollow profile steel concrete column, and form center steel pipe splicing welding joint (12), by reinforcing bar and splicing sleeve (4), the upper end of longitudinal reinforcement (3) in first prefabricated hollow profile steel concrete column is welded with the lower end of longitudinal reinforcement (3) in second prefabricated hollow profile steel concrete column again, then colligation stirrup (6) on reinforcing bar, time colligation stirrup (6), the density of splicing regions colligation stirrup (6) is greater than the density of non-splicing regions colligation stirrup (6),
4) installation form (7), and inject slightly expanded concrete by note concrete port (71) to splicing regions, when steam vent (22) has cement to flow out, the concrete perfusion of splicing regions completes;
5), after the concrete setting of the splicing regions such as, stripping (7) and dummy coupling (5), complete the splicing of first prefabricated hollow profile steel concrete column and second prefabricated hollow profile steel concrete column.
2. the joining method of prefabricated hollow profile steel concrete column according to claim 1, it is characterized in that, the external surface at described center steel pipe (1) is connected with several anti-shearing connectors (13), and anti-shearing connector (13) is wrapped in concrete (2).
3. the joining method of prefabricated hollow profile steel concrete column according to claim 1, is characterized in that,
Described longitudinal reinforcement (3) is arranged at center steel pipe (1) around uniformly;
The uniform colligation of described stirrup (6) is on longitudinal reinforcement (3).
4. the joining method of prefabricated hollow profile steel concrete column according to claim 1, is characterized in that,
The cross section at described center steel pipe (1) is square;
The quantity of described longitudinal reinforcement (3) is 12;
Described concrete (2) is square-tube type structure.
5. the joining method of prefabricated hollow profile steel concrete column according to claim 1, is characterized in that, the tube wall of described splicing sleeve (4) is evenly provided with three or four notches (41).
6. the joining method of prefabricated hollow profile steel concrete column according to claim 1, is characterized in that, described straight-bar (52) is provided with the adjusting nut (53) for regulating straight-bar (52) length.
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