CN103422620A - Prefabricated hollow steel-reinforced concrete column and splicing structure and splicing method thereof - Google Patents
Prefabricated hollow steel-reinforced concrete column and splicing structure and splicing method thereof Download PDFInfo
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- CN103422620A CN103422620A CN2013103767307A CN201310376730A CN103422620A CN 103422620 A CN103422620 A CN 103422620A CN 2013103767307 A CN2013103767307 A CN 2013103767307A CN 201310376730 A CN201310376730 A CN 201310376730A CN 103422620 A CN103422620 A CN 103422620A
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Abstract
The invention discloses a prefabricated hollow steel-reinforced concrete column. The prefabricated hollow steel-reinforced concrete column comprises a central steel pipe, concrete, a plurality of longitudinal reinforcing steel bars and stirrups strapped on the longitudinal reinforcing steel bars; the concrete wraps the central steel pipe, the longitudinal reinforcing steel bars and the stirrups, the two ends of the central steel pipe and the two ends of each longitudinal reinforcing steel bar stretch outside the upper end face and the lower end face of the concrete, and the parts, stretching outside the end faces of the concrete, of the central steel pipe are longer than the parts, stretching outside the end faces of the concrete, of each longitudinal reinforcing steel bar; a plurality of lifting holes are formed in the side face of the upper end of the central steel pipe, and erection bolt holes penetrating through the central steel pipe and the concrete are formed in the upper end and the lower end of the side face of the concrete. The invention further provides a splicing structure and a splicing method of the prefabricated hollow steel-reinforced concrete column. The prefabricated hollow steel-reinforced concrete column can effectively increase construction speed and the use ratio of resources.
Description
Technical field
The present invention relates to building engineering field, be specifically related to a kind of prefabricated hollow type steel concrete column and splicing construction and joining method.
Background technology
Steel reinforced concrete is applied very extensive in engineering as a kind of composite material, it has brought into play composition material advantage separately cleverly, has good techno-economic effect.Researcher and engineers have been carried out a large amount of research and practice to the steel reinforced concrete material, and the basic framework of steel reinforced concrete structure theory forms at present, has published a series of monograph, is the most important foundation stone of steel reinforced concrete structure extensive use.Meanwhile produced 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, that Liu Yongjian etc. have applied for is by name the hollow steel pipe column construction of concrete outsourcing " external based on stiffening rib with " utility model patent (application number 201220047141.5), still there are in addition some related application documents 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, have increased 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 is having superiority this structure unlike concrete structure aspect speed of application and resource consumption.
Summary of the invention
The object of the invention is to overcome the shortcoming of above-mentioned prior art, a kind of prefabricated hollow type steel concrete column and splicing construction and joining method are provided, and this concrete column and splicing construction thereof and joining method can effectively improve the utilization rate of speed of application and resource.
For achieving the above object, prefabricated hollow type 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 all are wrapped in concrete, the two ends of center steel pipe and the two ends of longitudinal reinforcement all reach the length that concrete upper and lower both ends of the surface Wai， center steel pipe stretches out the concrete end face and are greater than the length that longitudinal reinforcement stretches out the 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 be arranged at uniformly the center steel pipe around;
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 the square-tube type structure.
Accordingly, the present invention also provides a kind of splicing construction of prefabricated hollow type steel concrete column, comprises that at least two prefabricated hollow type steel concrete columns that mutually splice, reinforcing bar, splicing sleeve, dummy coupling reach the template of the splicing regions for sealing adjacent two prefabricated hollow type steel concrete columns;
Described dummy coupling is comprised of the straight-bar of upper end, bottom and adjustable in length, upper end and bottom are equipped with hole, Shang De hole, bottom is connected with the erection bolt hole of first prefabricated hollow type steel concrete column upper end, and Shang De hole, upper end is connected with the erection bolt hole of second prefabricated hollow type 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 type steel concrete column and first prefabricated hollow type steel concrete column respectively by two splicing sleeves;
Described template is provided with for pouring into the notes concrete port of slightly expanded concrete.
Evenly be provided with three or four notches on the tube wall of described splicing sleeve.
Described straight-bar is provided with for regulating the adjusting nut of straight-bar length.
Accordingly, the present invention also provides a kind of joining method of prefabricated hollow type steel concrete column, comprises the following steps:
1) hole for hoist on the prefabricated hollow type steel concrete column of crane and first is connected, and by crane, first prefabricated hollow type steel concrete column is winched to installation site; Then crane is connected with the hole for hoist on second prefabricated hollow type steel concrete column, and lift by crane second prefabricated hollow type steel concrete column, the upper surface of center steel pipe in the lower surface of center steel pipe in second prefabricated hollow type steel concrete column and first prefabricated hollow type steel concrete column is matched;
2) by dummy coupling, the erection bolt hole of first prefabricated hollow type steel concrete column upper end is connected with the erection bolt hole of second prefabricated hollow type steel concrete column lower end, and then adjusts height and the verticality of second prefabricated hollow type steel concrete column by the length of regulating straight-bar;
3) by the lower surface welding of center steel pipe in the upper surface of center steel pipe in first prefabricated hollow type steel concrete column and second prefabricated hollow type steel concrete column, and formation center steel pipe splicing welding joint, by reinforcing bar and splicing sleeve, the lower end of longitudinal reinforcement in the upper end of longitudinal reinforcement in first prefabricated hollow type steel concrete column and second prefabricated hollow type steel concrete column is welded mutually again, then colligation stirrup on reinforcing bar, during the 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 annotating concrete port to splicing regions, when steam vent has cement to flow out, the concrete perfusion of splicing regions completes;
5) etc., after the concrete setting of splicing regions, stripping and dummy coupling, can complete the splicing of first prefabricated hollow type steel concrete column and second prefabricated hollow type 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; during prefabricated hollow type steel concrete column, can in factory, produce; effectively saved the time of building steel concrete column; large-scale plant produced is convenient to the pool utilization and control quality of material; with job site, compare; production environment and labor safety devices in factory are better, can effectively reduce labor strength, better protect workman's safety and Health.In addition, the northern China cold district is affected by temperature the winter need stop concreting, if adopt prefabricated hollow type steel concrete column, because splice region is less, be easy to realize heat tracing, the teletostage can normal construction, for tight building of duration, has better applicability.In addition, prefabricated hollow type steel concrete column of the present invention is provided with the center steel pipe, can effectively reduce the deadweight of prefabricated hollow type steel concrete column, by concrete, the center steel pipe is wrapped up simultaneously, thereby the center steel pipe of avoiding is subject to fire or corrosion and is impaired, and then effectively raise life-span and the safety of prefabricated hollow type steel concrete column.In splicing, erection bolt hole on two adjacent prefabricated hollow type steel concrete columns is connected by dummy coupling, can proofread and correct verticality and the height of described prefabricated hollow type steel concrete column by the length of adjusting the dummy coupling upper connecting rod, make become very simple of concatenation construction.
The accompanying drawing explanation
The structural representation that Fig. 1 is prefabricated hollow type steel concrete column of the present invention;
Fig. 2 is prefabricated hollow type steel concrete column splicing schematic diagram of the present invention;
Fig. 3 prefabricated hollow type steel concrete column cross-sectional drawing of the present invention;
The connection diagram of longitudinal reinforcement 3 in Fig. 4 the present invention;
Fig. 5 (a) is the structural representation of splicing sleeve 4 in the present invention, and Fig. 5 (b) is the structural representation in splicing sleeve 4 cross sections;
The structural representation that Fig. 6 is dummy coupling 5 in the present invention;
The splicing schematic diagram that Fig. 7 is prefabricated hollow type steel concrete column in the present invention.
Wherein, centered by 1 steel pipe, 2 be concrete, 3 for longitudinal reinforcement, 4 for splicing sleeve, 5 for dummy coupling, 6 for stirrup, 7 for template, 11 for hole for hoist, 12 center steel pipe splicing welding joints, 13 for anti-shearing connector, 21 for erection bolt hole, 22 steam vents, 41 for notch, 51 bottoms, 52 for straight-bar, 53 for adjusting nut, 54 for upper end, 71 for annotating concrete ports.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail:
With reference to figure 1 and Fig. 3, prefabricated hollow type 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 be arranged at uniformly center steel pipe 1 around; The vertically uniform colligation of described stirrup 6 is on longitudinal reinforcement 3, described center steel pipe 1, longitudinal reinforcement 3 and stirrup 6 all are wrapped in concrete 2, the two ends of the two ends of center steel pipe 1 and 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 faces is greater than the length that longitudinal reinforcement 3 stretches out concrete 2 end faces, 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 sides are equipped with the erection bolt hole 21 that penetrates 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 prefabricated hollow type steel concrete column Zhong De of the present invention center steel pipe 1 is square, the number of longitudinal reinforcement 3 is 12, described concrete 2 is the 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 all is 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 type steel concrete column of the present invention, comprise that at least two prefabricated hollow type steel concrete columns that mutually splice, reinforcing bar, splicing sleeve 4, dummy coupling 5 reach the template 7 of the splicing regions for sealing adjacent two prefabricated hollow type steel concrete columns; Evenly be provided with three or four notches 41 on the tube wall of described splicing sleeve 4.Described dummy coupling 5 is comprised of the straight-bar 52 of 54, bottom 51, upper end and adjustable in length, 54Ji bottom, upper end 51 is equipped with hole, 51Shang De hole, bottom is connected with the erection bolt hole 21 of first prefabricated hollow type steel concrete column upper end, and 54Shang De hole, upper end is connected with the erection bolt hole 21 of second prefabricated hollow type 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 type steel concrete column and first prefabricated hollow type steel concrete column respectively by two splicing sleeves 4; Described template 7 is provided with for pouring into the notes concrete port 71 of slightly expanded concrete.
Accordingly, with reference to figure 7, the present invention also provides a kind of joining method of prefabricated hollow type steel concrete column, comprises the following steps:
1) hole for hoist 11 on the prefabricated hollow type steel concrete column of crane and first is connected, and by crane, first prefabricated hollow type steel concrete column is winched to installation site; Then crane is connected with the hole for hoist 11 on second prefabricated hollow type steel concrete column, and lift by crane second prefabricated hollow type steel concrete column, the upper surface of center steel pipe 1 in the lower surface of center steel pipe 1 in second prefabricated hollow type steel concrete column and first prefabricated hollow type steel concrete column is matched;
2) by dummy coupling 5, the erection bolt hole 21 of first prefabricated hollow type steel concrete column upper end is connected with the erection bolt hole 21 of second prefabricated hollow type steel concrete column lower end, and then adjust height and the verticality of second prefabricated hollow type steel concrete column by the length of regulating straight-bar 52
3) lower surface of center steel pipe 1 in the upper surface of center steel pipe 1 in first prefabricated hollow type steel concrete column and second prefabricated hollow type steel concrete column is welded mutually, and formation center steel pipe splicing welding joint 12, the lower end welding by longitudinal reinforcement 3 in the upper end of longitudinal reinforcement 3 in first prefabricated hollow type steel concrete column and second prefabricated hollow type steel concrete column by reinforcing bar and splicing sleeve 4 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 annotating concrete port 71 to splicing regions, and when steam vent 22 has cement paste to flow out, the concrete perfusion of splicing regions completes;
5) etc., after the concrete setting of splicing regions, stripping 7 and dummy coupling 5, complete the splicing of first prefabricated hollow type steel concrete column and second prefabricated hollow type steel concrete column.
Concrete, crane winches to installation site by hole for hoist 11 by first prefabricated hollow type steel concrete column and second prefabricated hollow type steel concrete column, then wear Screw arbor with nut at both-ends in erection bolt hole 21, Screw arbor with nut at both-ends is through the 54Ji bottom, upper end 51 of dummy coupling 5, by first prefabricated hollow type steel concrete column, second prefabricated hollow type steel concrete column, and dummy coupling 5 be bolted, and then rotate height and the verticality that adjusting nut 53 is adjusted prefabricated hollow type steel concrete column, itself and design and installation position are matched.Then two sections center steel pipes 1 that are spliced prefabricated hollow type steel concrete column are welded to each other, form center steel pipe splicing welding joint 12.After center steel pipe 1 has spliced, with steel bar welding, connect the joint location that splicing sleeve 4 is enclosed within longitudinal reinforcement 3, make interface be positioned at the positive middle part that steel bar welding connects splicing sleeve 4, then in the interior plug welding of bar shaped notch 41, two sections 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, installing template 7 is closed splice region, inject slightly expanded concrete by annotating concrete port 71 to splice region, concrete perfusion will produce certain pressure and, with filling with shaking, the splice region filling concrete completes when steam vent 22 has cement paste to flow out in splice region.
Claims (8)
1. a prefabricated hollow type steel concrete column, is characterized in that, 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) all are wrapped in concrete (2), the length that the Wai， of the both ends of the surface up and down center steel pipe (1) that the two ends of the two ends of center steel pipe (1) and longitudinal reinforcement (3) all reach concrete (2) stretches out concrete (2) end face is greater than the length that longitudinal reinforcement (3) stretches out concrete (2) end face;
The side of described 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) that penetrates 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).
2. prefabricated hollow type steel concrete column according to claim 1, it is characterized in that, 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).
3. prefabricated hollow type steel concrete column according to claim 1, is characterized in that,
Described longitudinal reinforcement (3) be arranged at uniformly center steel pipe (1) around;
Described stirrup (6) colligation uniformly is on longitudinal reinforcement (3).
4. prefabricated hollow type steel concrete column according to claim 1, is characterized in that,
The cross section of described center steel pipe (1) is square;
The quantity of described longitudinal reinforcement (3) is 12;
Described concrete (2) is the square-tube type structure.
5. the splicing construction of a prefabricated hollow type steel concrete column, based on prefabricated hollow type steel concrete column claimed in claim 1, it is characterized in that, comprise that at least two prefabricated hollow type steel concrete columns that mutually splice, reinforcing bar, splicing sleeve (4), dummy coupling (5) reach the template (7) of the splicing regions for sealing adjacent two prefabricated hollow type steel concrete columns;
Described dummy coupling (5) is comprised 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 type steel concrete column upper end, and the hole on upper end (54) is connected with the erection bolt hole (21) of second prefabricated hollow type 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 type steel concrete column and first prefabricated hollow type steel concrete column respectively by two splicing sleeves (4);
Described template (7) is provided with for pouring into the notes concrete port (71) of slightly expanded concrete.
6. the splicing construction of prefabricated hollow type steel concrete column according to claim 5, is characterized in that, evenly is provided with three or four notches (41) on the tube wall of described splicing sleeve (4).
7. the splicing construction of prefabricated hollow type steel concrete column according to claim 5, is characterized in that, described straight-bar (52) is provided with for regulating the adjusting nut (53) of straight-bar (52) length.
8. the joining method of a prefabricated hollow type steel concrete column, the splicing construction based on prefabricated hollow type steel concrete column claimed in claim 5, is characterized in that, comprises the following steps:
1) hole for hoist (11) on the prefabricated hollow type steel concrete column of crane and first is connected, and by crane, first prefabricated hollow type steel concrete column is winched to installation site; Then crane is connected with the hole for hoist (11) on second prefabricated hollow type steel concrete column, and lift by crane second prefabricated hollow type steel concrete column, the upper surface of center steel pipe (1) in the lower surface of center steel pipe (1) in second prefabricated hollow type steel concrete column and first prefabricated hollow type steel concrete column is matched;
2) by dummy coupling (5), the erection bolt hole (21) of first prefabricated hollow type steel concrete column upper end is connected with the erection bolt hole (21) of second prefabricated hollow type steel concrete column lower end, and then adjusts height and the verticality of second prefabricated hollow type steel concrete column by the length of regulating straight-bar (52);
3) lower surface of center steel pipe (1) in the upper surface of center steel pipe (1) in first prefabricated hollow type steel concrete column and second prefabricated hollow type steel concrete column is welded mutually, and formation center steel pipe splicing welding joint (12), the lower end welding by longitudinal reinforcement (3) in the upper end of longitudinal reinforcement (3) in first prefabricated hollow type steel concrete column and second prefabricated hollow type steel concrete column by reinforcing bar and splicing sleeve (4) 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 annotating concrete port (71) to splicing regions, when steam vent (22) has cement to flow out, the concrete perfusion of splicing regions completes;
5) etc., after the concrete setting of splicing regions, stripping (7) and dummy coupling (5), complete the splicing of first prefabricated hollow type steel concrete column and second prefabricated hollow type steel concrete column.
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