CN105735467A - Connecting device and method for PC (prefabricated concrete) beam and column joints - Google Patents
Connecting device and method for PC (prefabricated concrete) beam and column joints Download PDFInfo
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- CN105735467A CN105735467A CN201610240443.7A CN201610240443A CN105735467A CN 105735467 A CN105735467 A CN 105735467A CN 201610240443 A CN201610240443 A CN 201610240443A CN 105735467 A CN105735467 A CN 105735467A
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- connector
- prefabricated
- column node
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- lower prop
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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
-
- 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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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention belongs to the technical field of building construction, and relates to a connecting device and method for PC (prefabricated concrete) beam and column joints to be used for solving the problems that the workload is high, and the construction schedule is affected due to time consumed for splicing, adjustment and locating of PC columns is long in traditional PC beam and column joint mounting construction. The connecting device comprises a first connector and a second connector which are arranged in a fit manner, wherein the first connector is pre-buried in lower holes in an upper prefabricated column, and the second connector is pre-buried in upper holes in a lower prefabricated column, and can be arranged on the outer wall of the first connector in a sleeving manner. The connecting method comprises the following steps: firstly, the connecting device is prefabricated and pre-buried in the upper prefabricated column and a preset position on the upper prefabricated column; secondly, the lower prefabricated column is mounted, and stirrups are arranged in a joint region; then a prefabricated beam is mounted; the upper prefabricated column is mounted; a prefabricated floor slab is mounted above the prefabricated beam; finally, an overlapping layer is poured to the upper part of the prefabricated floor slab, and concrete is used for pouring the beam and column joint region.
Description
Technical field
The present invention relates to technical field of building construction, particularly to a kind of PC beam column node connection device and method.
Background technology
Along with progress and the development of science and technology, the building industry of China just progressively by conventional industries to modern industrialization transition and upgrade.Carry out building industrialization and both met the needs of construction industry development, also comply with state and build the needs of development strategy.Prefabricated assembled concrete structure (PrefabricatedConcrete is called for short PC structure) is arisen at the historic moment.PC structure is as the new structural systen of one of current international building industrialization trend, significant in promotion architectural industrialization, reduction building consumption, raising building products quality, shortening construction period etc..According to code requirement, PC bean column node (i.e. prefabricated post and overlapping beam connecting node) needs cast-in-place construction.Traditional PC bean column node construction mainly includes prefabricated post location, reinforcement welding, tongue portion construction, the process of primary-secondary beam position and cast-in-place concrete five part.Wherein, prefabricated post location includes after lifting completes, prefabricated post position adjustments is carried out according to construction drawing, and reserved 20mm regulates for level height at prefabricated post tenon place, its component perpendicularity is then checked by plumb aligner, and sets up temporary support and fix, to prevent the prefabricated post on top from toppling, every prefabricated post must be checked after having lifted, and all prefabricated post of each floor must unified be checked after having lifted.Reinforcement welding is then after prefabricated post has positioned, with original structure, the main muscle of end opening that one layer of prefabricated post is reserved is reserved main muscle weld mutually, the main muscle of end opening of two layers of prefabricated post and the suitable for reading main muscle of one layer of prefabricated post weld mutually, so successively weld main muscle reserved between of vertically-adjacent prefabricated post.The construction of tenon position is after lifting in prefabricated post, position and fixing, and carries out stirrup colligation and the envelope mould at tenon position, and stays two dustpan mouths for concreting in subsequent handling.Primary and secondary beam position processes mainly when there being secondary beam to be held on girder, girder secondary beam lay-down position concrete should after water, and for preventing this girder from bending in lifting process, be additionally provided with support at this position.
Visible, in traditional PC beam-column node construction method, component PC post is assembled, regulate and position length consuming time, and easily occurs bigger position deviation in work progress, causes and repeatedly regulates location, and not only workload greatly but also affects construction speed.PC bean column node consumption in PC engineering is big, and construction process requirement is high, needs to set up temporary support and fix after prefabricated post position, consuming man-hour and seriously constrain the installation progress of PC, thus leveraging the construction period of whole PC engineering.
Therefore it provides a kind of installation accuracy is high, speed is fast, need not set up the PC beam column node connection device of temporary support and easy construction and method is that those skilled in the art need badly and solve the technical problem that.
Summary of the invention
It is an object of the invention to provide a kind of PC beam column node connection device and method, for solving component PC post in traditional PC bean column node installation and splice, regulate, position length consuming time and work progress easily occurs that bigger position deviation needs repeatedly to regulate, thus causing workload big, the problem affecting construction speed.
For solving above-mentioned technical problem, technical scheme is as follows:
A kind of PC beam column node connection device, described PC bean column node includes precast beam, prefabricated upper prop and prefabricated lower prop, described connecting device includes: coordinate the first connector and second connector of spigot-and-socket docking, described first connector and described second connector are rectangle cancelled structure, described first connector is embedded in the end opening of described prefabricated upper prop in advance, described second connector be embedded in advance described prefabricated lower prop suitable for reading in, described second connector can be sheathed on the outer wall of described first connector.
Further, described first connector and described second connector are four vertical posts limbs and the rectangle cancelled structure of some horizontal batten plates composition, four described rectangular arrangements of vertical posts limb, adjacent described vertical posts limb is connected between two by described horizontal batten plate, wherein, the horizontal batten plate of described first connector is arranged at the inner side of its rectangular frame structure, and the horizontal batten plate of described second connector is arranged at the outside of its rectangular frame structure.
Further, also including elevation regulator, described elevation regulator is fixing with described first connector to be connected or clamping connection.
Further, the internal diameter of described second connector is more than the external diameter of described first connector.
Further, the overlapping length of described first connector and described second connector is be more than or equal to 200mm and be more than or equal to the length of described horizontal batten plate.
Further, the depth of burying H of described first connector and described second connector is all higher than being equal to 200mm.
Further, described first connector and described second connector are made by steel.
Further, described first connector and described second connector are made by angle steel.
The invention also discloses the method for attachment of a kind of PC bean column node, comprise the steps:
Step one, prefabricated connecting device: the connecting device as described in any one of claim 1 to 8 is provided, and prefabricated upper prop and prefabricated lower prop is made in factory, respectively described first connector is embedded in advance in the end opening of described prefabricated upper prop, described second connector is embedded in advance described prefabricated lower prop suitable for reading in；
Step 2, prefabricated lower prop are installed: install described prefabricated lower prop so that described prefabricated lower prop is fixing with existing structure to be connected；
Step 3, precast beam are installed: hoisting prefabricated beam is also fixedly installed on described prefabricated lower prop；
Step 4, prefabricated upper prop are installed: lift described prefabricated upper prop in the top of described prefabricated lower prop so that described prefabricated upper prop and prefabricated lower prop compact siro spinning technology；
Step 5, precast floor slab are installed: at the described precast beam described precast floor slab of installation fixed above；
Step 6, build cast-in-place overlapping layers and bean column node.
Further, described step 4 includes:
The first step: described first connector is inserted described second connector so that described prefabricated upper prop and prefabricated lower prop connect temporarily；
Second step: after the correction of described prefabricated upper prop being put in place, be welded to connect described first connector and the second connector.
Compared with prior art, useful the having the technical effect that of the present invention
1, PC beam column node connection device provided by the invention, including the first connector and the second connector that coordinate spigot-and-socket docking, first connector and the second connector are rectangle cancelled structure, first connector is embedded in the end opening of prefabricated upper prop in advance, second connector be embedded in advance prefabricated lower prop suitable for reading in, the second connector can be sheathed on the outer wall of the first connector.By this connecting device, prefabricated post is installed, the installation effectiveness of prefabricated post can not only be improved, reduce the probability of deviations, avoid the construction delay that deviations causes, accelerate the construction speed of PC engineering, also enhancing the strength and stiffness of the prefabricated post in PC bean column node region simultaneously, thus meeting the detailing requiments of strong column and weak beam, the weak component of strong node, further increasing the anti-seismic performance of PC structure.Therefore, this connecting device solves component PC post in PC bean column node installation and splices, regulates, positions length consuming time and work progress easily occurs that bigger position deviation needs repeatedly to regulate, thus causing workload big, and the problem affecting construction speed.
2, PC bean column node method of attachment provided by the invention, first prefabricated connecting device, and be embedded in prefabricated upper prop and prefabricated lower prop；Secondly prefabricated lower prop is installed, stirrup is set at node region；Then precast beam is installed so that the stirrup of prefabricated lower prop is connected with the reinforcing bar of precast beam；Prefabricated upper prop is then installed, first make the first connector pre-buried in prefabricated upper prop end opening and prefabricated lower prop interior the second pre-buried connector suitable for reading fix temporarily, complete the location of prefabricated upper prop, then be welded to connect the built-in fitting of the two, complete being permanently fixed of prefabricated upper prop and prefabricated lower prop；Then at precast beam precast floor slab installed above；Last overlapping layers of building above precast floor slab, and with concreting bean column node region.Traditional PC bean column node method of attachment is optimized by this method of attachment, not only ensure that the quality of connection of PC bean column node, and it is more efficient, convenient that bean column node is connected, and saves construction cost, has good promotional value.
Accompanying drawing explanation
Fig. 1 is the structural representation of the PC beam column node connection device of one embodiment of the invention；
Fig. 2 to Fig. 6 is the step 2 flow chart to step 6 of the PC bean column node method of attachment of one embodiment of the invention.
In figure:
11-the first connector, 12-the second connector, 13-elevation regulator；20-precast beam；The prefabricated upper prop of 31-, the prefabricated lower prop of 32-；40-precast floor slab；The cast-in-place overlapping layers of 50-.
Detailed description of the invention
The PC beam column node connection device and the method that the present invention are proposed below in conjunction with the drawings and specific embodiments are described in further detail.According to the following describes, advantages and features of the invention will be apparent from.It should be noted that, accompanying drawing all adopts the form simplified very much and all uses non-ratio accurately, only in order to convenience, the purpose aiding in illustrating the embodiment of the present invention lucidly.For sake of convenience, described below " on ", the upper and lower direction of D score and accompanying drawing consistent, but this can not become the restriction of technical solution of the present invention.
PC beam column node connection device and the method for the present invention is described in detail below in conjunction with Fig. 1 to Fig. 6.
Embodiment one
As shown in figures 1 to 6, a kind of PC beam column node connection device, PC bean column node includes precast beam 20, prefabricated upper prop 31 and prefabricated lower prop 32, connecting device includes: coordinate the first connector 11 and the second connector 12 of spigot-and-socket docking, first connector 11 and the second connector 12 are rectangle cancelled structure, first connector 11 is embedded in the end opening of prefabricated upper prop 31 in advance, second connector 12 be embedded in advance prefabricated lower prop 32 suitable for reading in, the second connector 12 can be sheathed on the outer wall of the first connector 11.
By arranging PC beam column node connection device so that the prefabricated post in PC bean column node positions conveniently when mounted, and can strengthen the strength and stiffness of PC bean column node region post.In embodiments of the present invention, prefabricated post includes prefabricated upper prop 31 and prefabricated lower prop 32.Specifically, when traditional prefabricated upper prop is installed, not only to carry out level height and regulate and perpendicularity adjustment, in addition it is also necessary to arranging temporary support, thus causing adjustment to position length consuming time, installation effectiveness is low.And embodiments provide the installation of connecting device auxiliary prefabricated post, before prefabricated post is installed, first connector 11 of connecting device and the second connector 12 are embedded in prefabricated upper prop 31 and prefabricated lower prop 32 respectively in advance, when mounted, first pass through the first connector 11 in connecting device and insert in the second connector 12, form sheathed connection, complete the location of prefabricated upper prop 31 and interim fixing, positioning precision is high, it is not necessary to repeatedly regulate, thus instead of tradition to add the way of temporary support；Then being welded and fixed of the first connector 11 and the second connector 12 is carried out again, thus completing the installation of prefabricated upper prop 31.The connecting device provided by the embodiment of the present invention installs prefabricated post, the installation effectiveness of prefabricated post can not only be improved, reduce the probability of deviations, avoid the construction delay that deviations causes, accelerate the construction speed of PC engineering, also enhancing the strength and stiffness of the prefabricated post in PC bean column node region simultaneously, thus meeting the detailing requiments of strong column and weak beam, the weak component of strong node, further increasing the anti-seismic performance of PC structure.
Preferably, the rectangle cancelled structure that first connector 11 and the second connector 12 are four vertical posts limbs (not shown) and some horizontal batten plates (not shown) form, four rectangular arrangements of vertical posts limb, adjacent vertical posts limb is connected between two by horizontal batten plate, wherein, the horizontal batten plate of the first connector 11 is arranged at inside vertical posts limb, the horizontal batten plate of the second connector 12 is arranged at outside vertical posts limb, consequently facilitating the sheathed connection of the first connector 11 and the second connector 12.
Especially, also include elevation regulator 13, by the first connector 11 top installed height mark actuator 13, for assisting the location of prefabricated upper prop 31.During Specific construction, when prefabricated lower prop 32 installation accuracy does not reach designing requirement, the elevation regulator 13 situation according to job site repetition measurement, before prefabricated upper prop 31 lifts, it is connected fixing with the first connector 11 for elevation regulator 13；When prefabricated upper prop 31 installation accuracy meets installation requirement, elevation regulator 13, when factory makes prefabricated upper prop 31, is welded and fixed with the first connector 11.Certainly, consider that the effect of elevation regulator 13 is similar with the absolute altitude adjusting nut of the prefabricated lower prop of the first floor 32, in order to save material, make elevation regulator can have enough to meet the need use, the connected mode of this elevation regulator 13 and the first connector 11 can also clamping or bolt and nut connect or other similar connected modes, does not limit herein.
Preferably, it is contemplated that when prefabricated upper prop 31 is installed, the convenience for construction of workmen, it is positioned at the internal diameter external diameter more than the first connector 11 being positioned at prefabricated upper prop 31 end opening of prefabricated lower prop 32 second connector 12 suitable for reading.
And, the direction of transfer considering power is 45 degree, in order to prefabricated upper prop 31 is fixed in reasonable power transmission temporarily, keep the locating effect of prefabricated upper prop 31, the overlapping length of the first connector 11 and the second connector 12 is be more than or equal to 200mm and more than or equal to the length of horizontal batten plate, meanwhile, in order to improve prefabricated upper prop 31 and the interim stability maintenance of prefabricated lower prop 32 docking connection, the first connector 11 and second connector 12 depth of burying H in prefabricated post are all higher than being equal to 200mm.And, in order to make and draw materials conveniently, the first connector 11 and the second connector 12 are made by steel.Preferably, the first connector 11 and the second connector 12 are made by angle steel.
Embodiment two
Accordingly, the method for attachment of a kind of PC bean column node is present embodiments provided.Incorporated by reference to referring to figs. 2 to Fig. 6, the method for attachment of a kind of PC bean column node, this method of attachment comprises the following steps:
S001: prefabricated connecting device: connecting device is provided, and makes prefabricated upper prop 31 and prefabricated lower prop 32 in factory, respectively the first connector 11 is embedded in advance in the end opening of prefabricated upper prop 31, the second connector 12 is embedded in advance prefabricated lower prop 32 suitable for reading in.
S002: prefabricated lower prop 32 is installed: install prefabricated lower prop 32 so that prefabricated lower prop 32 is fixing with existing structure to be connected.It is to say, prefabricated lower prop 32 lifted to precalculated position, job site and be fixed on and complete in structure.Certainly, after the prefabricated lower prop 32 of installation, in addition it is also necessary to stirrup is set at reserved node region, is connected with prefabricated the fixing of lower prop 32 for follow-up precast beam 20.
S003: precast beam 20 is installed: hoisting prefabricated beam 20 is also fixedly installed on prefabricated lower prop 32, and be connected fixing with the dowel that precast beam 20 is reserved for the stirrup on prefabricated lower prop 32.
S004: prefabricated upper prop 31 is installed: lift described prefabricated upper prop in the top of described prefabricated lower prop so that described prefabricated upper prop and prefabricated lower prop compact siro spinning technology.Specifically, the first connector 11 is inserted in the second connector 12 so that the second connector 12 is sheathed on the first connector 11 outer wall, after then the correction of prefabricated upper prop 31 being put in place, be welded to connect the first connector 11 and the second connector 12.
S005: precast floor slab 40 is installed: at precast beam 20 installation precast floor slab 40 fixed above.
S006: build cast-in-place overlapping layers 50 and bean column node.Namely above precast floor slab 40, adopt the cast-in-place overlapping layers 50 of concreting, and build the bean column node region between prefabricated upper prop 31, prefabricated lower prop 32 and precast beam 20 simultaneously, thus completing the connection construction at whole bean column node position.
In sum, the PC beam column node connection device of the present invention, including the first connector and the second connector that coordinate spigot-and-socket docking, first connector and the second connector are rectangle cancelled structure, first connector is embedded in the end opening of prefabricated upper prop in advance, second connector be embedded in advance prefabricated lower prop suitable for reading in, the second connector can be sheathed on the outer wall of the first connector.The connecting device provided by the embodiment of the present invention installs prefabricated post, the installation effectiveness of prefabricated post can not only be improved, reduce the probability of deviations, avoid the construction delay that deviations causes, accelerate the construction speed of PC engineering, also enhancing the strength and stiffness of the prefabricated post in PC bean column node region simultaneously, thus meeting the detailing requiments of strong column and weak beam, the weak component of strong node, further increasing the anti-seismic performance of PC structure.And this connecting device is simply firm, easy construction, effectively reduce construction cost.The PC bean column node method of attachment of the present invention, first prefabricated connecting device, and be embedded in prefabricated upper prop and prefabricated lower prop；Secondly prefabricated lower prop is installed, stirrup is set at node region；Then precast beam is installed so that the stirrup of prefabricated lower prop is connected with the reinforcing bar of precast beam；Prefabricated upper prop is then installed, first make the first connector one pre-buried in prefabricated upper prop end opening and prefabricated lower prop interior the second pre-buried connector suitable for reading fix temporarily, complete the location of prefabricated upper prop, then be welded to connect the built-in fitting of the two, complete being permanently fixed of prefabricated upper prop and prefabricated lower prop；Then at precast beam precast floor slab installed above；Last overlapping layers of building above precast floor slab, and with concreting bean column node region.Traditional PC bean column node method of attachment is optimized by this method of attachment, not only ensure that the quality of connection of PC bean column node, and it is more efficient, convenient that bean column node is connected, and saves construction cost, has good promotional value.
Foregoing description is only the description to present pre-ferred embodiments, not any restriction to the scope of the invention, any change that the those of ordinary skill in field of the present invention does according to the disclosure above content, modification, belongs to the protection domain of claims.
Claims (10)
1. a PC beam column node connection device, described PC bean column node includes precast beam, prefabricated upper prop and prefabricated lower prop, it is characterized in that, described connecting device includes: coordinate the first connector and second connector of spigot-and-socket docking, described first connector and described second connector are rectangle cancelled structure, described first connector is embedded in the end opening of described prefabricated upper prop in advance, described second connector be embedded in advance described prefabricated lower prop suitable for reading in, described second connector can be sheathed on the outer wall of described first connector.
2. PC beam column node connection device according to claim 1, it is characterized in that, described first connector and described second connector are four vertical posts limbs and the rectangle cancelled structure of some horizontal batten plates composition, four described rectangular arrangements of vertical posts limb, adjacent described vertical posts limb is connected between two by described horizontal batten plate, wherein, the horizontal batten plate of described first connector is arranged at the inner side of its rectangular frame structure, and the horizontal batten plate of described second connector is arranged at the outside of its rectangular frame structure.
3. PC beam column node connection device according to claim 1, it is characterised in that also include elevation regulator, described elevation regulator is fixing with described first connector to be connected or clamping connection.
4. PC beam column node connection device according to claim 2, it is characterised in that the internal diameter of described second connector is more than the external diameter of described first connector.
5. the PC beam column node connection device according to any one of Claims 1-4, it is characterised in that the overlapping length of described first connector and described second connector is be more than or equal to 200mm and be more than or equal to the length of described horizontal batten plate.
6. PC beam column node connection device according to claim 5, it is characterised in that the depth of burying H of described first connector and described second connector is all higher than being equal to 200mm.
7. PC beam column node connection device according to claim 5, it is characterised in that described first connector and described second connector are made by steel.
8. PC beam column node connection device according to claim 7, it is characterised in that described first connector and described second connector are made by angle steel.
9. the method for attachment of a PC bean column node, it is characterised in that comprise the steps:
Step one, prefabricated connecting device: the connecting device as described in any one of claim 1 to 8 is provided, and prefabricated upper prop and prefabricated lower prop is made in factory, respectively described first connector is embedded in advance in the end opening of described prefabricated upper prop, described second connector is embedded in advance described prefabricated lower prop suitable for reading in；
Step 2, prefabricated lower prop are installed: install described prefabricated lower prop so that described prefabricated lower prop is fixing with existing structure to be connected；
Step 3, precast beam are installed: hoisting prefabricated beam is also fixedly installed on described prefabricated lower prop；
Step 4, prefabricated upper prop are installed: lift described prefabricated upper prop in the top of described prefabricated lower prop so that described prefabricated upper prop and prefabricated lower prop compact siro spinning technology；
Step 5, precast floor slab are installed: at the described precast beam described precast floor slab of installation fixed above；
Step 6, build cast-in-place overlapping layers and bean column node.
10. method of attachment according to claim 9, it is characterised in that described step 4 includes:
The first step: described first connector is inserted described second connector so that described prefabricated upper prop and prefabricated lower prop connect temporarily；
Second step: after the correction of described prefabricated upper prop being put in place, be welded to connect described first connector and the second connector.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511018327 | 2015-12-29 | ||
| CN2015110183272 | 2015-12-29 |
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| CN105735467A true CN105735467A (en) | 2016-07-06 |
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| CN201610240443.7A Pending CN105735467A (en) | 2015-12-29 | 2016-04-18 | Connecting device and method for PC (prefabricated concrete) beam and column joints |
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| CN107795010B (en) * | 2017-10-24 | 2023-12-22 | 广东精宏建设有限公司 | Precast beam column joint and construction method thereof |
| CN108755945A (en) * | 2018-06-29 | 2018-11-06 | 华南理工大学 | A kind of prefabricated assembled concrete bean column node and its construction method |
| CN112922234A (en) * | 2021-01-27 | 2021-06-08 | 海南大学 | Equivalent steel reinforced concrete prefabricated column and construction method thereof |
| WO2022161085A1 (en) * | 2021-01-27 | 2022-08-04 | 海南大学 | Equivalent steel concrete precast column and construction method therefor |
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