CN113445744B - Grouting-free sleeve assembly integral beam-column structure UHPC connection construction method - Google Patents
Grouting-free sleeve assembly integral beam-column structure UHPC connection construction method Download PDFInfo
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- CN113445744B CN113445744B CN202110897683.5A CN202110897683A CN113445744B CN 113445744 B CN113445744 B CN 113445744B CN 202110897683 A CN202110897683 A CN 202110897683A CN 113445744 B CN113445744 B CN 113445744B
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/20—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/20—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material
- E04B1/21—Connections specially adapted therefor
- E04B1/215—Connections specially adapted therefor comprising metallic plates or parts
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Abstract
The application relates to a grouting-free sleeve assembling integral beam column structure UHPC connection construction method, which relates to the field of building structures and comprises the following construction steps of S1 and prefabricating columns; s2, mounting a beam column node member; s3, connecting the reinforcing beam column node member with the prefabricated column; s4, prefabricating the beam; s5, finishing, and after the beam column node member, the prefabricated beam and the prefabricated column are all cast in a formwork mode, enabling the beam column to form a whole. This application has the stability of ensureing the beam column installation to realize strutting arrangement's cyclic utilization, when reducing construction cost, also have energy-conserving performance.
Description
Technical Field
The application relates to the field of building structures, in particular to a grouting-free sleeve assembling integral beam column structure UHPC connection construction method.
Background
Currently, more connecting points are mainly located in the beam-column joint area. The node core area has other structural forms such as an assembly type node with a key slot, an assembly type node without a key slot and using U-shaped steel bars or steel strands, an assembly type node with profile steel added inside and the like. The dry connection mode of the fabricated concrete frame node is a node mode that a connecting part is embedded in a member and connected through prestressed tendons, bolts or welding and the like without pouring concrete.
The existing Chinese patent with the patent application number of CN201610303221.5 provides a precast concrete beam-column joint component and a construction method, the joint comprises a precast column, a precast beam, connecting steel bars, beam longitudinal bars, stirrups and cast-in-place UHPC concrete, the beam longitudinal bars are pre-embedded in the precast beam, one end of each beam longitudinal bar extends out of the connecting end part of the precast beam, a through hole is axially arranged on the precast column along the precast beam, spiral stirrups along the direction of the through hole are arranged around the through hole, the connecting steel bars pass through the through hole to be lapped with the beam longitudinal bars and are fixed by the stirrups, and the cast-in-place UHPC concrete is poured between the through hole and the connecting surface of the beam-column.
According to the related technology, the inventor thinks that the prefabricated columns and the prefabricated beams are connected through the steel bars and then are cast through formwork erection, the whole process is complex in operation, and the defect of increasing the working strength exists.
Disclosure of Invention
In order to improve the problem that the construction strength of the prefabricated column and the prefabricated beam is high, the application provides a grouting-free sleeve assembling integral beam column structure UHPC connection construction method.
The application provides a grouting-free sleeve assembly integral beam column structure UHPC connection construction method adopts the following technical scheme:
a UHPC connection construction method of a grouting-free sleeve assembly integral beam-column structure comprises the following construction steps,
s1, performing enclosure and mold sealing after the prefabricated columns and the stirrups are connected, and pouring UHPC to finish the processing of the prefabricated pile;
s2, mounting the beam-column node member, hoisting the beam-column node member to penetrate through the prefabricated column top steel bar, and supporting the beam-column node member through a supporting device;
s3, connecting the reinforced beam-column joint member with the prefabricated column, and reinforcing the connection position of the beam-column joint member and the prefabricated column by adopting a steel-wrapping and glue-pouring process;
s4, prefabricating the beam, and completing the construction of the prefabricated beam by binding and connecting the prefabricated beam component with the reserved steel bars of the beam column node component, shaping a steel mould, sealing the mould and pouring UHPC;
s5, finishing, and after the beam column node member, the prefabricated beam and the prefabricated column are all cast in a formwork mode, enabling the beam column to form a whole.
Through adopting above-mentioned technical scheme, at first prefabricated post of installation and construction and node component, whole operation process is accomplished in advance, the time limit for a project greatly is shortened, treat that prefabricated post and beam column node component accomplish the back of being connected, support beam column node component through strutting arrangement, and strutting arrangement recycle, realize the cyclic utilization effect of resource, secondly consolidate beam column node component through the technology of package steel encapsulating, promote joint strength between precast pile and the beam column node component greatly, construction cost is strengthened obviously for the tradition through pouring the concrete and is reduced, at last process precast beam on beam column node component, after all formwork pouring at beam column node component and precast beam and precast column junction, make the beam column form wholly.
Optionally, strutting arrangement includes tubular pile and jack, the tubular pile stands on ground, the jack with the removable setting of tubular pile, the stress end support beam column node component of jack.
Through adopting above-mentioned technical scheme, under the effect of tubular pile and jack, realize supporting beam column node component to tubular pile and jack all can be dismantled to retrieve and recycle, realize this work progress's energy-conserving effect.
Optionally, jack casing bottom fixedly connected with dead lever, the tubular pile top is provided with and is used for the fixed orifices that the dead lever was pegged graft, the jack casing with the cover is equipped with fixed cover between the tubular pile, the jack with it is fixed through the fastener extrusion between the tubular pile.
Through adopting above-mentioned technical scheme, fixed cover is established dead lever and fixed orifices cover, fixes between jack and the tubular pile through the fastener, promotes the effect of fixed jack and tubular pile, reduces staff intensity of labour.
Optionally, the fastener sets up to the bolt, fixed cover bottom is provided with the screw hole, the bolt with behind the screw hole threaded connection with the tubular pile butt.
Through adopting above-mentioned technical scheme, through the squeezing action of bolt to the tubular pile, frictional force between the casing of fixed cover and jack realizes the fixed firm effect between tubular pile and the jack.
Optionally, the fixing sleeve is welded at the threaded hole and is provided with a nut, and the bolt is in threaded connection with the nut.
Through adopting above-mentioned technical scheme, the nut is used for increasing the fixed intensity of overlapping in the screw hole position, increases the stability of bolt and tubular pile butt.
Optionally, in S2, after reinforcing the beam-column node member, the jack is supported outside the beam-column node member after being surrounded by the surrounding plate, a pouring gate is left at the connection position of the template and the upper end of the beam-column node member, and commercial concrete is poured toward the pouring gate.
Through adopting above-mentioned technical scheme, through the joint strength between reinforcing beam column node component and the prefabricated post, when promoting prefabricated post load strength, also can ensure the steadiness in the beam column node component work progress.
Optionally, the enclosing plate is arranged in an inclined mode, the opening in the upper end of the enclosing plate is small, the opening in the lower end of the enclosing plate is large, after the jack is taken out, commercial concrete is poured towards the enclosing space after the beam column node member is drilled, and a new prefabricated column is formed after maintenance.
Through adopting above-mentioned technical scheme, be convenient for take out the jack from enclosing, and then realize the recycle effect between jack and the tubular pile.
Optionally, the screw rods are preset on four side walls of the prefabricated column and the beam-column node member in the S3, the steel plates are arranged on the screw rods in a penetrating mode, one end, penetrating out of the steel plates, of each screw rod is connected with a nut in a threaded mode, and the steel plates reinforce the connection positions of the prefabricated column and the beam-column node member.
Through adopting above-mentioned technical scheme, through the reinforcing effect of steel sheet to prefabricated post and beam column node component, further guarantee to stabilize the effect between prefabricated post and the beam column node component.
Optionally, sealant is poured on four sides of the steel plate, a sealant pouring hole and a sealant outlet hole are reserved, structural sealant is poured into the sealant pouring hole, after the sealant is discharged from the sealant outlet hole, glue pouring is completed, and steel wrapping sealant pouring is completed after the structural sealant is cured.
Through adopting above-mentioned technical scheme, through pouring into the structure glue towards between steel sheet and prefabricated post and the beam column node component, realize being connected firm effect between steel sheet and prefabricated post and the beam column node component, further promote the strengthening performance of steel sheet.
Optionally, when the node member is hoisted in S1, the laser level is used to control the position of the node member.
By adopting the technical scheme, the working efficiency of the hoisting beam column node member is improved through the positioning effect of the laser level meter.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the construction of the precast pile and the node member is completed in advance, the construction period is greatly shortened, after the precast pile is connected with the beam-column node member, the beam-column node member is supported by the supporting device, the supporting device can be recycled, the resource recycling effect is realized, then the beam-column node member is reinforced by a steel-coated and glue-pouring process, the connection strength between the precast pile and the beam-column node member is greatly improved, and the construction cost is obviously reduced compared with the traditional method of reinforcing by pouring concrete;
2. under the combined action of the friction force between the end part of the bolt and the bottom surface of the tubular pile and the friction force between the fixing sleeve and the jack, the fixing effect of the jack in the vertical direction is realized, and meanwhile, under the horizontal direction limiting effect of the fixing rod and the fixing hole, the fixing and stabilizing effect between the jack and the tubular pile is ensured;
3. after the sealant is cured, structural adhesive is injected into the glue filling hole, after the glue is overflowed from the glue outlet hole, glue filling work is completed, steel-clad glue filling work is completed after the structural adhesive is cured, and the stability of the connecting position of the prefabricated column and the beam column node component is further improved.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;
fig. 2 is a flow chart of an embodiment of the present application.
Reference numerals: 1. prefabricating a column; 2. a beam-column node member; 3. prefabricating a beam; 4. a tubular pile; 5. a jack; 6. fixing the rod; 7. a fixing hole; 8. fixing a sleeve; 9. a bolt; 10. a nut; 11. a screw; 12. a steel plate; 13. and (4) a nut.
Detailed Description
The present application is described in further detail below with reference to figures 1-2.
The embodiment of the application discloses a grouting-free sleeve assembling integral beam column structure UHPC connection construction method. Referring to fig. 1 and 2, the grouting-free sleeve assembling integral beam-column structure UHPC connection construction method comprises the following construction steps,
s1, prefabricating the column 1, when the prefabricated column 1 is installed, aligning I-steel on the lower portion of the component with a reserved hole for installation, connecting reserved steel bars, sealing a formwork by adopting a shaping steel formwork consisting of a steel formwork and a fastener after the stirrup is installed, temporarily fixing the periphery of the component through inclined struts, and pouring UHPC in a post-pouring area in multiple times to complete the installation of the prefabricated column 1.
Referring to fig. 1 and 2, S2, mounting a beam-column node member 2, before the beam-column node member 2 is constructed, performing mortar setting construction with a thickness of 20mm on the column top, hoisting the beam-column node member 2 to penetrate through a steel bar on the top of a prefabricated column 1, in the hoisting process, controlling the position of the beam-column node member 2 by using a laser level meter, enabling a ray emitted by the laser level meter to pass through the center of the beam-column node member 2, placing the laser level meter at the center of the prefabricated column 1, and after the position control is completed, taking away the laser level meter and continuing hoisting the beam-column node member 2; supporting the beam column node member 2 through a supporting device, and grouting from a grouting hole to overflowing from a through hole to complete the installation of the prefabricated beam column node member 2;
the supporting device comprises a tubular pile 4 and a jack 5, the tubular pile 4 is placed on the ground, the stress end of the jack 5 supports the beam-column node member 2, and the supporting effect on the beam-column node member 2 is ensured under the action of the jack 5;
in order to realize the recycling effect of the jack 5, a fixing rod 6 is fixedly connected to the bottom end of a shell of the jack 5, a fixing hole 7 for inserting the fixing rod 6 is formed in the top end of the tubular pile 4, a fixing sleeve 8 is covered between the shell of the jack 5 and the shell of the tubular pile 4, the fixing sleeve 8 is in a concave shape, the fixing sleeve 8 is covered outside the jack 5 and the tubular pile 4 along the horizontal direction, the jack 5 and the tubular pile 4 are fixed through a fastener in an extrusion mode, the fastener is set to be a bolt 9, a threaded hole is formed in the bottom end of the fixing sleeve 8, a nut 10 is welded at the opening of the threaded hole of the fixing sleeve 8, the nut 10 and the threaded hole are coaxially arranged, the bolt 9 is in threaded connection with the nut 10, and the threaded hole is abutted to the bottom surface of the tubular pile 4 after being in threaded connection with the bolt 9;
under the combined action of the friction force between the end part of the bolt 9 and the bottom surface of the tubular pile 4 and the friction force between the fixed sleeve 8 and the jack 5, the fixing effect of the jack 5 in the vertical direction is realized, and meanwhile, under the horizontal direction limiting effect of the fixed rod 6 and the fixed hole 7, the fixing and stabilizing effect between the jack 5 and the tubular pile 4 is ensured.
In order to enhance the supporting strength of the precast column 1, after reinforcing the beam column node member 2, the jack 5 is supported outside the beam column node member 2 after being surrounded by a surrounding plate, a pouring gate is reserved at the joint of the template and the upper end of the beam column node member 2, commercial concrete is poured into a space surrounded by the outer mold and the surrounding plate through the pouring gate, and the connection with the precast column 1 is realized after maintenance;
at the moment, the tubular pile 4 and the jack 5 are disassembled, the enclosing plates are arranged in an inclined mode, the upper end opening of the space enclosed by the enclosing plates is small, the lower end opening of the space enclosed by the enclosing plates is large, the jack 5 can be conveniently taken out of the enclosure, after formwork supporting is carried out, commercial concrete is poured towards the enclosure space through drilling in the beam column node member 2, a new prefabricated column 1 is formed after maintenance, and the load strength of the prefabricated column 1 is improved.
Referring to fig. 1 and 2, S3, reinforcing the beam-column joint member 2 and the precast column 1, and reinforcing the connecting position of the beam-column joint member 2 and the precast column 1 by adopting a steel-wrapping glue-pouring process; the four side walls of the prefabricated column 1 and the beam column node component 2 are all preset with screw rods 11, the screw rods 11 penetrate through steel plates 12, the four steel plates 12 are connected end to form a circle, one end of each screw rod 11 penetrating through the corresponding steel plate 12 is connected with a screw cap 13 in a threaded mode, the screw caps 13 extrude and fix the steel plates 12 outside the prefabricated column 1 and the beam column node component 2, and the steel plates 12 reinforce the connecting position of the prefabricated column 1 and the beam column node component 2;
sealant is poured on four side positions of the steel plate 12, a sealant pouring hole and a sealant outlet hole are reserved, the sealant pouring hole and the sealant outlet hole are located on the same side of the steel plate 12 and are respectively located at the positions of two ends of the steel plate 12, structural sealant is poured into the sealant pouring hole after the sealant is cured, after the sealant outlet hole overflows with the sealant, the sealant pouring work is completed, the steel-clad sealant pouring work is completed after the structural sealant is cured, and the stability of the connecting position of the prefabricated column 1 and the beam column node component 2 is further improved.
Referring to fig. 1 and 2, S4, binding and connecting the prefabricated beam 3 member with the reserved steel bars of the beam column node member 2, shaping a steel die seal mold and pouring UHPC, and completing construction of the prefabricated beam 3;
s5, finishing, and after formwork pouring is carried out on the joints of the beam column node member 2, the precast beam 3 and the precast column 1, forming the beam column into a whole.
The implementation principle of the UHPC connection construction method for the grouting-free sleeve assembly integral beam-column structure in the embodiment of the application is as follows: firstly, a prefabricated column 1 is installed and constructed, after the prefabricated column 1 is installed, the position of a beam column node member 2 is controlled through a laser level meter, the hoisting position of the beam column node member 2 is ensured, the node member penetrates through a top steel bar of the prefabricated column 1, a plurality of tubular piles 4 are placed on the ground, a jack 5 is placed at the top ends of the tubular piles 4, a fixing rod 6 is inserted into a fixing hole 7, a fixing sleeve 8 is covered outside the jack 5 and the jack 5, a bolt 9 penetrates through a nut 10 and then abuts against the tubular piles 4, and the supporting effect of the jack 5 on the node member is achieved;
after enclosing the outside of the jack 5 and then fixing the supporting formwork, after commercial concrete is injected into a space between the enclosing and supporting formworks, the tubular pile 4 and the jack 5 are disassembled, the jack 5 is withdrawn, and the commercial concrete is injected into the enclosing space, so that the supporting strength of the prefabricated column 1 is further improved; further, the steel plate 12 is fixed through the screw cap 13 in an extruding mode, the steel plate 12 is fixed through a steel wrapping and glue pouring process, and reinforcing operation on the connecting position of the prefabricated column 1 and the beam joint component is achieved; the prefabricated beam 3 component is bound and connected with the reserved steel bars of the beam column node component 2, the steel die is shaped, the UHPC is poured, the construction of the prefabricated beam 3 is completed, and finally, after the beam column node component 2, the prefabricated beam 3 and the prefabricated column 1 are all formwork-erected and poured, the beam column is integrated.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (7)
1. A grouting-free sleeve assembly integral beam-column structure UHPC connection construction method is characterized in that: comprises the following construction steps of the following steps of,
s1, performing enclosure and mold sealing after the prefabricated column (1) is connected by stirrups, and pouring UHPC to finish the processing of the prefabricated pile;
s2, mounting the beam-column node member (2), hoisting the beam-column node member (2) to penetrate through a top steel bar of the precast column (1), and supporting the beam-column node member (2) through a supporting device;
s3, reinforcing the beam column node member (2) and the prefabricated column (1), and reinforcing the connection position of the beam column node member (2) and the prefabricated column (1) by adopting a steel-wrapping glue-pouring process;
s4, prefabricating the beam (3), and completing construction of the prefabricated beam (3) by binding and connecting the prefabricated beam (3) component with the reserved steel bars of the beam-column node component (2), shaping a steel mould, sealing the mould and pouring UHPC;
s5, finishing, and after formwork pouring is carried out on the joints of the beam column node member (2), the precast beam (3) and the precast column (1), forming the beam column into a whole;
the supporting device comprises a tubular pile (4) and a jack (5), the tubular pile (4) is erected on the ground, the jack (5) and the tubular pile (4) are detachably arranged, and a stress end of the jack (5) supports the beam-column node component (2); in S2, after reinforcing the beam-column node member (2), supporting a formwork outside the jack (5) after enclosing through a coaming, reserving a pouring gate at the joint of the formwork and the upper end of the beam-column node member (2), and pouring commercial concrete towards the pouring gate; screw rods (11) are arranged on four side walls of the prefabricated column (1) and the beam column node member (2) in the S3 in a preset mode, steel plates (12) are arranged on the screw rods (11) in a penetrating mode, one end, penetrating out of the steel plates (12), of each screw rod (11) is connected with a nut (13) in a threaded mode, and the steel plates (12) reinforce the connection position of the prefabricated column (1) and the beam column node member (2).
2. The grouting-free sleeve assembling integrated beam-column structure UHPC connection construction method according to claim 1, characterized in that: jack (5) casing bottom fixedly connected with dead lever (6), tubular pile (4) top is provided with and is used for fixed orifices (7) that dead lever (6) were pegged graft, jack (5) casing with the cover is equipped with fixed cover (8) between tubular pile (4), jack (5) with it is fixed through the fastener extrusion between tubular pile (4).
3. The grouting-free sleeve assembling integrated beam-column structure UHPC connection construction method according to claim 2, characterized in that: the fastener sets up to bolt (9), fixed cover (8) bottom is provided with the screw hole, bolt (9) with behind the screw hole threaded connection with tubular pile (4) butt.
4. The grouting-free sleeve assembling integrated beam-column structure UHPC connection construction method according to claim 3, characterized in that: the fixed sleeve (8) is welded with a nut (10) at the threaded hole, and the bolt (9) is in threaded connection with the nut (10).
5. The grouting-free sleeve assembling integrated beam-column structure UHPC connection construction method according to claim 4, characterized in that: the enclosing plate is arranged in an inclined mode, the opening in the upper end of the enclosing plate is small, the opening in the lower end of the enclosing plate is large, after the jack (5) is taken out, commercial concrete is poured towards the enclosing space after the beam column node member (2) is drilled, and a new prefabricated column (1) is formed after maintenance.
6. The grouting-free sleeve assembling integrated beam-column structure UHPC connection construction method according to claim 1, characterized in that: sealant is poured on four sides of the steel plate (12), a sealant pouring hole and a sealant outlet hole are reserved, structural sealant is poured into the sealant pouring hole, after the sealant is discharged from the sealant outlet hole, glue pouring is completed, and steel wrapping sealant pouring is completed after the structural sealant is solidified.
7. The grouting-free sleeve assembling integrated beam-column structure UHPC connection construction method according to claim 1, characterized in that: and when the beam column node member (2) is hoisted in the S1, the position of the node member is controlled by adopting a laser level meter.
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| CN114508172B (en) * | 2022-02-15 | 2024-04-26 | 江苏华江建设集团有限公司 | Prefabricated assembled column beam node core area and construction method thereof |
| CN114837407B (en) * | 2022-03-26 | 2024-05-28 | 惠州市建筑工程有限公司 | Concrete beam column joint integrated construction template and construction method thereof |
| CN114991303B (en) * | 2022-06-09 | 2023-03-10 | 广东省怡合建设有限公司 | Grouting-free sleeve assembly integral beam column structure UHPC connection construction method |
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| US10837167B2 (en) * | 2016-05-25 | 2020-11-17 | Libere NITUNGA | Construction of the prefabricated column and beam type |
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| EP3366853A1 (en) * | 2017-02-24 | 2018-08-29 | New World China Land Limited | Prefabricated structural system and assembling method thereof |
| CN108978859A (en) * | 2018-08-22 | 2018-12-11 | 沈阳建筑大学 | Assembled beam-column connecting node |
| CN110106977A (en) * | 2019-05-28 | 2019-08-09 | 张晨堂 | A kind of assembling type steel structure beam column grouting anchorage node |
| CN112482795A (en) * | 2020-10-30 | 2021-03-12 | 上海建工二建集团有限公司 | Supporting structure of prefabricated concrete structure and construction method |
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