CN103850350A - Prefabricated and assembled integral special-shaped column structure and splicing construction method thereof - Google Patents
Prefabricated and assembled integral special-shaped column structure and splicing construction method thereof Download PDFInfo
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Abstract
本发明公开了一种预制装配整体式异形柱结构及其拼接施工方法，该结构包括预制上柱、预制下柱和预制叠合梁；所述预制上柱、预制下柱预埋有槽钢，槽钢上有预留的螺栓孔，相邻的预制上柱和预制下柱通过槽钢用螺栓连接在一起，形成一种留有现浇区的上下贯通的异形柱，现浇区部分设有加密箍筋；所述预制叠合梁通过梁的纵筋锚固在异形柱中；相邻两个所述预制上柱、预制下柱的现浇区以及预制叠合梁的未浇混凝土部分，填充有现浇混凝土，形成一个梁柱结合的整体。本发明能显著改善异形柱节点核心区混凝土振捣不密实以及振捣困难的问题，从而提高了节点的抗震性能。除此之外，还能加快施工速度，缩短工期，促进建筑工业化的发展。
The invention discloses a prefabricated assembly integral special-shaped column structure and a splicing construction method thereof. The structure includes a prefabricated upper column, a prefabricated lower column and a prefabricated composite beam; the prefabricated upper column and the prefabricated lower column are pre-embedded with channel steel, There are reserved bolt holes on the channel steel, and the adjacent prefabricated upper column and prefabricated lower column are connected together by bolts through the channel steel to form a special-shaped column with a cast-in-place area. Encrypted stirrups; the prefabricated composite beam is anchored in the special-shaped column through the longitudinal reinforcement of the beam; the cast-in-place areas of the two adjacent prefabricated upper columns, the prefabricated lower column and the uncast concrete part of the prefabricated composite beam are filled There is cast-in-place concrete, forming a beam-column integrated whole. The invention can significantly improve the problems that the concrete in the core area of the special-shaped column joint is not densely compacted and difficult to vibrate, thereby improving the seismic performance of the joint. In addition, it can speed up the construction speed, shorten the construction period, and promote the development of construction industrialization.
Description
Technical field
The invention belongs to building structure field, relate to buildings in general structure, be specifically related to be applicable to the concrete structural system of suitability for industrialized production, particularly prefabricated special-shaped column structure.
Background technology
At present, along with China's housing industry and economic developing rapidly and scientific and technological continuous progress, people improve constantly housing construction instructions for use, not only require usable floor area large, and require headroom also high.High-rise and super highrise building adopts the form of structure such as framework or frame-shear wall conventionally, traditional frame construction or shear force of frame wall construction adopt rectangular section column conventionally, and the width of rectangular section column is greater than the partition wall thickness between post and post, metope is protruded at the post angle in room, arrange to interior decoration and furniture and bring great inconvenience, also have influence on the reasonable use of plane effective area simultaneously.The effective area that how reasonably to utilize building, this has proposed new requirement to structural design of residence.Framed Structure with Special-Shaped Columns system has met above-mentioned requirements to a certain extent: concrete profiled rod structure replaces the structure of traditional rectangular section column composition, with avoid frame column at indoor protrusion, account for architectural space less, improve building utilization rate, increase house usable floor area, improve building sight, for Design of Residential Architecture and use function to bring flexibility and convenience! Therefore,, in structure design, Framed Structure with Special-Shaped Columns is widely used.But in recent years along with the continuous popularization of hetermorphiscal column, when having many merits, it also exposes many shortcomings: well-known, the inadequate natural endowment that hetermorphiscal column cross section property brings, it is again very important link that node is considered to the weakest while of building, and special-shaped column structure is compared with common frame construction, the core space volume of concrete of its node is less, and reinforcing bar is relatively intensive, and constructional difficulties, node strength is difficult for ensureing.In order further to promote the application of special-shaped column structure, supporting capacity and constructional difficulties that how research improves hetermorphiscal column have become a key issue urgently to be resolved hurrily.
If hetermorphiscal column adopts prefabricated, avoid laying at node region the difficulty of stirrup and concreting, be more conducive to ensure the quality of bean column node.Under the background of China's development industrialization of construction industry, fabricated assembly overall hetermorphiscal column had both had fabricated assembly overall structure decrease formwork, form removal, cycle is short, the advantages such as field operation amount is little, it is a kind of architectural structure system of applicable suitability for industrialized production, have a good application prospect, economic benefit and social benefit are remarkable.
Summary of the invention
The object of the invention is for prior art above shortcomings, a kind of prefabricated special-shaped column structure is provided, this structure can also effectively solve node region reinforcement ratio comparatively dense in the globality, supporting capacity and the anti-seismic performance that ensure node, construct more difficult, the uncompacted problem of concrete vibrating.
Object of the present invention also provides a kind of fabricated assembly overall special-shaped column structure (being applicable to L-type, T-shaped, cross) node connection construction method.
The technical solution used in the present invention is: a kind of fabricated assembly overall special-shaped column structure, and this structure comprises prefabricated upper prop, prefabricated lower prop and Prefabricated superposed beam;
Described prefabricated upper prop, prefabricated lower prop are embedded with channel-section steel, on channel-section steel, there is reserved bolt hole, adjacent prefabricated upper prop and prefabricated lower prop are bolted together by channel-section steel, form a kind of hetermorphiscal column of the up/down perforation that leaves cast-in-place district, and cast-in-place district part is provided with encryption stirrup;
Described Prefabricated superposed beam is anchored in hetermorphiscal column by the vertical muscle of beam;
Adjacent two described prefabricated upper props, the cast-in-place district of prefabricated lower prop and the not pouring concrete part of Prefabricated superposed beam, be filled with cast-in-situ concrete, forms the entirety of a beam column combination.
As preferably, the arrangement form of described channel-section steel in prefabricated upper prop and prefabricated lower prop is dispersed placement or centralized arrangement.
As preferably, on described channel-section steel, be implanted with the anchor bar that is no more than flange width.
As preferably, the vertical muscle of described prefabricated upper prop, prefabricated lower prop adopts overlap joint to connect, and the termination of the longitudinal reinforcement of overlap joint adopts the anchoring of monolateral subsides weldering dowel.
As preferably, the vertical muscle of described Prefabricated superposed beam is deep in post, and is provided with 900 crotch anchorings.
A concatenation construction method for above-mentioned fabricated assembly overall special-shaped column structure, comprises the following steps:
(1) at member processing space, first by described single prefabricated upper prop, prefabricated lower prop and Prefabricated superposed beam completion of processing;
(2), at the construction field (site) by prefabricated beam column loop wheel machine hoisted in position, the channel-section steel in prefabricated upper and lower post is linked together with bolt, and connect by bolt the deadweight and the definite member position that bear prefabricated upper prop; In addition, the stability of bearing diagonal reinforcement; Superposed beam meets code requirement by the length that support vertical muscle in position and superposed beam anchors in post;
(3) by template, reserved joint cores is sealed, and left construction mouthful;
(4) finally by reserved construction mouth to cast-in-place district concreting;
(5) after cast-in-place district concrete reaches strength of mould stripping by the form removable at joint cores place, prefabricated units and cast-in-situ concrete form entirety.
Beneficial effect of the present invention: compared with traditional hetermorphiscal column, structure of the present invention can make the prefabricated upper prop of hetermorphiscal column, lower prop and superposed beam are directly assembled and water with concrete is whole at Nodes, the globality of Nodes fabricated assembly overall hetermorphiscal column is strengthened, eliminate the weakness of node in traditional concept, and can heavily divide the material property of performance fabricated assembly overall hetermorphiscal column, thereby both improve the supporting capacity of the hetermorphiscal column of having been assembled, improve the globality of the hetermorphiscal column of having been assembled, anti-seismic performance etc., realize " being equal to " with common complete cast-in-place hetermorphiscal column, can solve again node area concrete difficulty vibrates, the problem of difficult construction, and can accelerate speed of application, reduction of erection time, promote the industrialization of building.In the time of concreting, can also eliminate node junction due to the leakiness of vibrating, the mass defect such as hole, voids and pits that may exist in concrete, the reliability of guarantee fabricated assembly overall hetermorphiscal column simultaneously.
Brief description of the drawings
Fig. 1 is the prefabricated upper prop structural representation of the embodiment of the present invention 1;
Fig. 2 is the prefabricated lower prop structural representation of the embodiment of the present invention 1;
Fig. 3 is the embodiment of the present invention 1 Prefabricated superposed beam structural representation;
Fig. 4 is the schematic perspective view before the embodiment of the present invention 1 concatenation construction concreting;
Fig. 5 is the schematic perspective view that the embodiment of the present invention 1 concatenation construction completes;
Fig. 6 is the prefabricated upper prop structural representation of the embodiment of the present invention 2;
Fig. 7 is the prefabricated lower prop structural representation of the embodiment of the present invention 2;
Fig. 8 is the schematic perspective view before the embodiment of the present invention 2 concatenation construction concretings;
Fig. 9 is the schematic perspective view that the embodiment of the present invention 2 concatenation constructions complete.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the invention will be further described:
As shown in Fig. 1,2,3,4 and 5: a kind of fabricated assembly overall special-shaped column structure, this structure comprises prefabricated upper prop 1, prefabricated lower prop 2 and Prefabricated superposed beam 4;
Described prefabricated upper prop 1, prefabricated lower prop 2 are embedded with channel-section steel 3, on channel-section steel 3, there is reserved bolt hole 5, adjacent prefabricated upper prop 1 and prefabricated lower prop 2 are bolted together by channel-section steel 3, form a kind of hetermorphiscal column of the up/down perforation that leaves cast-in-place district, and cast-in-place district part is provided with encryption stirrup; Described Prefabricated superposed beam 4 is anchored in hetermorphiscal column by the vertical muscle of beam; Adjacent two described prefabricated upper props 1, the cast-in-place district of prefabricated lower prop 2 and the not pouring concrete part of Prefabricated superposed beam 4, be filled with cast-in-situ concrete 6, forms the entirety of a beam column combination.On described channel-section steel 3, be implanted with the anchor bar that is no more than flange width.The vertical muscle of described prefabricated upper prop 1, prefabricated lower prop 2 adopts overlap joint to connect, and the termination of the longitudinal reinforcement of overlap joint adopts monolateral subsides weldering dowel anchoring 7.The vertical muscle of described Prefabricated superposed beam 4 is deep in post, and is provided with 900 crotch anchorings 8.
Arrangement form the be person centralized arrangement of described channel-section steel 3 in prefabricated upper prop 1 and prefabricated lower prop 2.
At the construction field (site), first by prefabricated upper prop 1, prefabricated lower prop 2 and Prefabricated superposed beam 4 hoisted in position, then at prefabricated upper prop 1, vertical junction between prefabricated lower prop 2 adopts bolt that pre-buried channel-section steel 3 is linked together, and the vertical muscle in post is carried out to colligation, vertical muscle in Prefabricated superposed beam 4 is anchored to prefabricated upper prop 1 simultaneously, in the cast-in-place region of prefabricated lower prop 2, then adopt template by prefabricated upper prop 1, prefabricated lower prop 2 and Prefabricated superposed beam 4 cast-in-place partially enclosed, finally at cast-in-place part concreting, after cast-in-situ concrete reaches strength of mould stripping by form removable, prefabricated part forms entirety with cast-in-situ concrete.
As shown in Fig. 6,7,8 and 9, the difference of the present embodiment and embodiment 1 is: the arrangement form of described channel-section steel 3 in prefabricated upper prop 1 and prefabricated lower prop 2 is person's dispersed placement.
It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.In the present embodiment not clear and definite each ingredient all available prior art realized.
Claims (6)
1. a fabricated assembly overall special-shaped column structure, is characterized in that: this structure comprises prefabricated upper prop, prefabricated lower prop and Prefabricated superposed beam;
Described prefabricated upper prop, prefabricated lower prop are embedded with channel-section steel, on channel-section steel, there is reserved bolt hole, adjacent prefabricated upper prop and prefabricated lower prop are bolted together by channel-section steel, form a kind of hetermorphiscal column of the up/down perforation that leaves cast-in-place district, and cast-in-place district part is provided with encryption stirrup;
Described Prefabricated superposed beam is anchored in hetermorphiscal column by the vertical muscle of beam;
Adjacent two described prefabricated upper props, the cast-in-place district of prefabricated lower prop and the not pouring concrete part of Prefabricated superposed beam, be filled with cast-in-situ concrete, forms the entirety of a beam column combination.
2. a kind of fabricated assembly overall special-shaped column structure according to claim 1, is characterized in that: the arrangement form of described channel-section steel in prefabricated upper prop and prefabricated lower prop is dispersed placement or centralized arrangement.
3. a kind of fabricated assembly overall special-shaped column structure according to claim 1, is characterized in that: on described channel-section steel, be implanted with the anchor bar that is no more than flange width.
4. a kind of fabricated assembly overall special-shaped column structure according to claim 1, is characterized in that: the vertical muscle of described prefabricated upper prop, prefabricated lower prop adopts overlap joint to connect, and the termination of the longitudinal reinforcement of overlap joint adopts the anchoring of monolateral subsides weldering dowel.
5. a kind of fabricated assembly overall special-shaped column structure according to claim 1, is characterized in that: the vertical muscle of described Prefabricated superposed beam is deep in post, and is provided with 900 crotch anchorings.
6. a concatenation construction method for the fabricated assembly overall special-shaped column structure described in claim 1,2,3,4 or 5, is characterized in that: comprise the following steps:
(1) at member processing space, first by described single prefabricated upper prop, prefabricated lower prop and Prefabricated superposed beam completion of processing;
(2), at the construction field (site) by prefabricated beam column loop wheel machine hoisted in position, the channel-section steel in prefabricated upper and lower post is linked together with bolt, and connect by bolt the deadweight and the definite member position that bear prefabricated upper prop; In addition, the stability of bearing diagonal reinforcement; Superposed beam meets code requirement by the length that support vertical muscle in position and superposed beam anchors in post;
(3) by template, reserved joint cores is sealed, and left construction mouthful;
(4) finally by reserved construction mouth to cast-in-place district concreting;
(5) after cast-in-place district concrete reaches strength of mould stripping by the form removable at joint cores place, prefabricated units and cast-in-situ concrete form entirety.
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Application publication date: 20140611 |