CN102140850B - Frame with floors of composite grid structure and construction method thereof - Google Patents
Frame with floors of composite grid structure and construction method thereof Download PDFInfo
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- CN102140850B CN102140850B CN2011100475505A CN201110047550A CN102140850B CN 102140850 B CN102140850 B CN 102140850B CN 2011100475505 A CN2011100475505 A CN 2011100475505A CN 201110047550 A CN201110047550 A CN 201110047550A CN 102140850 B CN102140850 B CN 102140850B
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Abstract
The invention relates to a frame with floors of a composite grid structure and a construction method thereof, and belongs to a building frame structure in the civil building structure field. The frame with floors of the composite grid structure is formed by connecting frame columns, frame edge beams and composite grid floors, wherein the composite grid floors are arranged in the space encircled by the frame columns and the frame beams layer by layer, and the floors are formed by connecting reinforced concrete slabs and web members as well as lower chords of a grid; the web members are positioned between the reinforced concrete slabs and the lower chords; the four neighboring reinforced concrete slabs are fixedly connected together at opposite angles through connecting plates; and the web members are welded with the connecting plates and are connected with the lower chords through hollow ball nodes. The invention gives full play to the advantages of the two different materials (i.e. high compression strength of concrete and high tensile strength of steel), achieves self load-bearing effect during the construction stage, and keeps large rigidity and good stability.
Description
Technical field
What the present invention relates to is the house frame structure in the civil engineering structure field, and what be specifically related to is framework and the job practices thereof of making floor of the composite space truss structure.
Background technology
The house that at present adopts reinforced concrete frame or prestressed concrete frame to build; Floor adopts reinforced concrete structure more; Cover is built and is increased in layer work progress in existing house; Former house is difficult to bear newly-increased cover and builds deadweight and the working load that structure one deck top is transmitted, and is difficult to ensure that former house builds the safety that increases in layer work progress at cover and use with normal; For the high level or the super highrise building that adopt the concrete giant frame structure; Because template and support expense are too high; Still being unrealized and building mammoth structure earlier, is that minor structure is built in the construction plant with each mammoth structure layer again, the interior minor structure of each mammoth structure layer of construction of accomplishing to advance side by side.
Summary of the invention
The purpose of this invention is to provide a kind of framework and job practices thereof of making floor of the composite space truss structure; It is used for solving existing house cover and builds and increase layer construction; Adopt conventional framework to be difficult to ensure the safety of former house in work progress and the normal construction mammoth structure earlier of using and still be unrealized; Be that minor structure is built in the construction plant with each mammoth structure layer again, accomplish to advance side by side and build the problem of minor structure in each mammoth structure layer.
The technical solution adopted for the present invention to solve the technical problems is: this framework of making floor of the composite space truss structure is connected and composed by frame column, framework side bar, composite space truss floor, and the composite space truss floor in layer is installed in the space that frame column and framework side bar surround; The composite space truss floor is installed together by web member, the lower chord of armored concrete slab and rack and forms; Web member is between armored concrete slab and lower chord; Be fixedly connected through junction plate at the place, diagonal angle between four adjacent armored concrete slabs; Web member and junction plate welding, web member is connected through hollow ball node with lower chord; Node between frame column and the composite space truss floor is inserted and is welded on frame column by upper and lower split type channel-section connecting piece and forms outward; The lower limb of corresponding two faces of the connection separated body on top respectively has a deep-slotted chip breaker, and the lower limb of an other face of the connection separated body on top has the junction plate of level; The top edge of corresponding two faces of the connection separated body of bottom respectively has a deep-slotted chip breaker, and the top edge of an other face of the connection separated body of bottom has the junction plate of level, between junction plate and the frame column stiffening rib is installed; Node between framework side bar and the composite space truss floor is by make-up and be welded on two outer connectors of framework side bar and constitute, and connector has engaging lug, and through bolt, web member and engaging lug weld together two connectors at the engaging lug place.
Be furnished with presstressed reinforcing steel in the such scheme on the rack.
Such scheme center trestle adopts the concrete filled square steel tube post, and the framework side bar adopts round steel pipe concrete beam.
Presstressed reinforcing steel is two strong point tri linear presstressed reinforcing steels in the such scheme; Two strong point tri linear presstressed reinforcing steels are penetrated in the steel pipe by reinforcing bar and form; Steel pipe is the dovetail groove shape, and the bottom of a level is arranged, and the upper end, bottom is welded with two steel pipe supporting members; The two ends of presstressed reinforcing steel are anchored at respectively on the frame column, and each steel pipe supporting member and the lower chord node on it are fixed together.
Presstressed reinforcing steel is the dual slope presstressed reinforcing steel in the such scheme; The dual slope presstressed reinforcing steel passes two ends, positioning supporting part bottom back by reinforcing bar and is anchored on the frame column and forms; Positioning supporting part has the base of a circular arc; The bottom surface of base is penetrated with groove, and the base upper end is welded with the oblique steel pipe of symmetric arrangement, and tiltedly steel pipe and lower chord node are fixed together.
Presstressed reinforcing steel is three strong points, four broken line steel bars in the such scheme; Three strong points, four broken line steel bars pass two ends, positioning supporting part bottom back by reinforcing bar and are anchored on the frame column and form; Positioning supporting part has the base of a circular arc; The bottom surface of base is penetrated with groove, and the base upper end is welded with the oblique steel pipe of symmetric arrangement, and tiltedly steel pipe and lower chord node are fixed together; One steel pipe supporting member respectively is set between the two ends of positioning supporting part and reinforcing bar anchoring, and each steel pipe supporting member is fixed between reinforcing bar and the lower chord node.
Beneficial effect:
1) attainable span is big;
Floor of the present invention adopts the composite space truss structure, and the composite space truss structure is three-dimensional stressed space structures, and the rod member that the space crosses supports each other, and stressed member and supporting rod are organically combined.
2) reasonable stress;
The composite space truss structure is a upper portion pressurized, and the bottom is drawn, and can give full play to concrete compression, and steel are drawn the strength advantage of these two kinds of different materials.
3) economy;
Because the overall space effect of rack, rigidity is big, stablizes, and is not very sensitive to the fault of construction of part, has each to stressed performance, compares with the ordinary steel rack of equal span, and its steel using amount can save 15% ~ 25%.
4) composite space truss can make the bearing function of structure and maintenance function unite two into one.
Armored concrete slab not only can make up the various loads of bearing on the floor with space truss structure, realizes the construction stage self-supporting, and can play the maintenance effect as common plate.
Description of drawings:
Fig. 1 is the structural representation of first kind of embodiment of the present invention;
Fig. 2 is the plan view of first kind of embodiment of the present invention;
Fig. 3 is armored concrete slab and web member syndeton sketch map among the present invention;
Fig. 4 is the sectional drawing of armored concrete slab among the present invention and web member johning knot;
Fig. 5 is the structural representation of second kind of embodiment of the present invention;
Fig. 6 is the structural representation of first kind of embodiment of presstressed reinforcing steel among the present invention;
Fig. 7 is the enlarged drawing of presstressed reinforcing steel among Fig. 6;
Fig. 8 is the structural representation of second kind of embodiment of presstressed reinforcing steel among the present invention;
Fig. 9 is the structural representation of the third embodiment of presstressed reinforcing steel among the present invention;
Figure 10 is the enlarged drawing of positioning supporting part among Fig. 9;
Figure 11 is the lateral view of positioning supporting part among Figure 10;
Figure 12 builds the sketch map that increases layer mega-structure system for the cover that the present invention builds;
Rack and column jointing gusset side elevational view among Figure 13 the present invention;
Figure 14 is the sketch map of connector among Figure 13;
Figure 15 is the vertical view of connector among Figure 13;
Rack and column jointing gusset plan view among Figure 16 the present invention;
Figure 17 rack of the present invention and beam connecting node stereogram;
Figure 18 is an A-A sectional drawing among Fig. 2.
1 frame column, 2 framework side bars, 3 composite space truss floors, 4 armored concrete slabs, 5 web members, 6 lower chords, 7 junction plates, 8 presstressed reinforcing steels, 9 steel pipe supporting members, 10 positioning supporting parts, 11 connectors, 12 junction plates, 13 connectors, 14 engaging lugs, 15 minor structures, 16 bolts, 17 stiffening ribs
The specific embodiment:
Below in conjunction with accompanying drawing the present invention is done further explanation:
In conjunction with Fig. 1, shown in Figure 2; This framework of making floor of the composite space truss structure is connected and composed by frame column 1, framework side bar 2, composite space truss floor 3; The present invention adopts steel concrete plate to replace the upper chord of general steel mesh frame; Thereby forming the cooperative combining structure of a kind of steel work and reinforced concrete structure, is the common stressed combining structure of a kind of plate system, girder system and leverage; Composite space truss floor 3 in layer is installed in the space that frame column 1 and framework side bar 2 surround; Frame column 1 and composite space truss floor 3 are connected through node, and framework side bar 2 and composite space truss floor 3 are connected through node, and frame column 1 adopts the concrete filled square steel tube post, and framework side bar 2 adopts round steel pipe concrete beams.Composite space truss rigidity is big; From heavy and light; Be fit to build the bigger large span floor structure of load, buildings such as warehouse, factory building, department store, exhibition hall are for example especially built to increase in layer and the giant frame structure at the existing building cover and are demonstrated superior performance; Build at cover and to increase the self-supporting that to realize the construction stage structure in the layer, avoid working load is passed on the existing building.
Composite space truss floor 3 is installed together and is formed by web member 5, the lower chord 6 of armored concrete slab 4 and rack; Web member 5 is between armored concrete slab 4 and lower chord 6; Armored concrete slab 4 in this embodiment is an armored concrete slab with ribbing; In conjunction with Fig. 3, shown in Figure 4, be fixedly connected web member 5 and junction plate 7 welding between four adjacent armored concrete slabs 4 through junction plate 7 at the place, diagonal angle; Web member 5 and lower chord 6 are connected through hollow ball node.This composite space truss floor slab structure is simple, in light weight, and weight capacity is strong.
Fig. 5 is the structural representation of second kind of embodiment of the present invention; Thisly do the framework of floor and difference shown in Figure 1 is with the composite space truss structure; Be furnished with presstressed reinforcing steel 8 on the rack of this framework of making floor of the composite space truss structure, presstressed reinforcing steel 8 is the dual slope presstressed reinforcing steel.Consult shown in Figure 8; This dual slope presstressed reinforcing steel 8 passes behind positioning supporting part 10 bottoms two ends by reinforcing bar and is anchored on the frame column 1 and forms, and positioning supporting part 10 has the base of a circular arc, and the bottom surface of base is penetrated with groove upwards; Reinforcing bar is absorbed in this groove; Can realize the location to reinforcing bar, the base upper end is welded with the oblique steel pipe of symmetric arrangement, and tiltedly steel pipe and lower chord 6 nodes are fixed together.The dual slope presstressed reinforcing steel is arranged simple, and attainable span is big, and loss of prestress is little, and the pre-applied force that structurally produces concentrates on the relatively large span centre of internal force, helps reducing or offsetting the effect that the structure span centre is concentrated external load.
Presstressed reinforcing steel shown in Figure 6 is two strong point tri linear presstressed reinforcing steels; Two strong point tri linear presstressed reinforcing steels penetrate in the steel pipe by reinforcing bar and form, and in conjunction with shown in Figure 7, steel pipe is the dovetail groove shape; The bottom that a level is arranged; The upper end, bottom is welded with two steel pipe supporting members 9, and the two ends of presstressed reinforcing steel 8 are anchored at respectively on the frame column 1, and each steel pipe supporting member 9 and lower chord 6 nodes on it are fixed together.The tri linear presstressed reinforcing steel is arranged simple, and attainable span is big, and loss of prestress is little, and the pre-applied force that structurally produces concentrates near the relatively large span centre of internal force, helps reducing or offsetting the effect that external load is concentrated near the many places of structure span centre.
Presstressed reinforcing steel shown in Figure 9 is three strong points, four broken line steel bars; Three strong points, four broken line steel bars are passed to be anchored at respectively on the frame column 1 behind positioning supporting part 10 bottoms by reinforcing bar and form; In conjunction with Figure 10, shown in Figure 11, positioning supporting part 10 has the base of a circular arc, and the bottom surface of base is penetrated with groove upwards; The base upper end is welded with the oblique steel pipe of symmetric arrangement; Tiltedly steel pipe and lower chord 6 nodes are fixed together, and a steel pipe supporting member 9 respectively is set between the two ends of positioning supporting part 10 and reinforcing bar anchoring, and each steel pipe supporting member 9 is fixed between reinforcing bar and lower chord 6 nodes.Three strong points, four broken line steel bars arrange that attainable span is big near parabola shaped, and loss of prestress is little, and the pre-applied force that structurally produces is near even distributed force, help reducing or offset dead load and be uniformly distributed with the effect of external load.
Figure 12 builds the sketch map that increases layer mega-structure system for the cover that the present invention builds; Building at existing house cover and to increase in layer mammoth structure work progress, at first adopt the present invention to build mammoth structure, is that minor structure 15 is built in the construction plant with each mammoth structure layer again, accomplishes to advance side by side to build the minor structure 15 in each mammoth structure layer.Save the cost of materials and the operating expenses of template and support, shorten the construction period.
In conjunction with Figure 13, shown in Figure 16; Node between frame column 1 and the composite space truss floor 3 inserts and is welded on frame column 1 outer formation by upper and lower split type channel-section connecting piece 11; The lower limb of corresponding two faces of the connection separated body on top respectively has a deep-slotted chip breaker; The lower limb of an other face of the connection separated body on top has boss, and just the lower limb of the face that is connected with composite space truss floor 3 of frame column 1 has boss, and boss has the junction plate 12 of level; The top edge of corresponding two faces of the connection separated body of bottom respectively has a deep-slotted chip breaker; The top edge of an other face of the connection separated body of bottom is fluted; Outwards there is the junction plate 12 of level at the bottom edge place of groove, and stiffening rib 17 is installed between junction plate 12 and the frame column 1; When upper and lower two connection separated body are installed in the intersection point place of frame column 1 and framework side bar 2; Framework side bar 2 is buckled in the upper and lower deep-slotted chip breaker; The boss of top connection separated body extend in the groove of bottom connection separated body simultaneously, and the junction plate 12 of two levels is fixed together through bolt 16 and gets final product.Channel-section connecting piece such as Figure 14, shown in Figure 15, this connector can complete in factory earlier, and install at the scene; During installation, the top connector is installed at first, the bottom connector is installed again; Through bolt 16 the two is fixed then, because the top connector can snap on the framework side bar 2, so need not support; Just can directly carry out the installation of bottom connector, more convenient.
In conjunction with Figure 17, shown in Figure 180; Node between framework side bar 2 and the composite space truss floor 3 is by make-up and be welded on two outer connectors 13 of framework side bar 2 and constitute; Connector 13 has engaging lug 14; Two connectors 13 are fixedly connected through bolt 16 at engaging lug 14 places, and web member 5 welds together with engaging lug 14.
Job practices of the present invention is: build frame column 1 earlier; Between frame column 1, build framework side bar 2 and form the building frame; The node of the node of installing frame trestle 1 and composite space truss floor 3 junctions, framework side bar 2 and composite space truss floor 3 junctions; Weld the web member 5 at above-mentioned node place, and then carry out the connection of lower-chord panel point, lower chord 6 successively and form rack, through junction plate armored concrete slab 4 is installed on the rack at last; Thereby accomplish the installation of the composite space truss floor 3 of the bottom, other each floor plates are installed are so successively accomplished until frame construction.
Armored concrete slab of the present invention can make up the various loads of bearing on the floor with space truss structure, can realize the construction stage self-supporting.
Claims (1)
1. framework of making floor of the composite space truss structure; It is characterized in that: this framework of making floor of the composite space truss structure is connected and composed by frame column (1), framework side bar (2), composite space truss floor (3), and composite space truss floor (3) in layer is installed in the space that frame column (1) and framework side bar (2) surround; Composite space truss floor (3) is installed together and is formed by web member (5), the lower chord (6) of armored concrete slab (4) and rack; Web member (5) is positioned between armored concrete slab (4) and the lower chord (6); Be fixedly connected web member (5) and junction plate (7) welding between adjacent four armored concrete slabs (4) through junction plate (7) at the place, diagonal angle; Web member (5) is connected through hollow ball node with lower chord (6); Node between frame column (1) and the composite space truss floor (3) inserts and is welded on outside the frame column (1) by upper and lower split type channel-section connecting piece (11) and forms; The lower limb of corresponding two faces of the connection separated body on top respectively has a deep-slotted chip breaker, and the lower limb of an other face of the connection separated body on top has the junction plate (12) of level; The top edge of corresponding two faces of the connection separated body of bottom respectively has a deep-slotted chip breaker, and the top edge of an other face of the connection separated body of bottom has the junction plate (12) of level, between junction plate (12) and the frame column (1) stiffening rib (17) is installed; Node between framework side bar (2) and the composite space truss floor (3) is by make-up and be welded on outer two connectors (13) formation of framework side bar (2); Connector (13) has engaging lug (14); Two connectors (13) are located through bolt at engaging lug (14), and web member (5) welds together with engaging lug.
2, according to claim 1ly do the framework of floor, it is characterized in that: be furnished with presstressed reinforcing steel on the described rack with the composite space truss structure.
3, according to claim 2ly do the framework of floor with the composite space truss structure, it is characterized in that: described frame column (1) adopts the concrete filled square steel tube post, and framework side bar (2) adopts round steel pipe concrete beam.
4, the framework of making floor of the composite space truss structure according to claim 3; It is characterized in that: described presstressed reinforcing steel (8) is two strong point tri linear presstressed reinforcing steels; Two strong point tri linear presstressed reinforcing steels are penetrated in the steel pipe by reinforcing bar and form; Steel pipe is the dovetail groove shape, and the bottom of a level is arranged, and the upper end, bottom is welded with two steel pipe supporting members (9); The two ends of presstressed reinforcing steel are anchored at respectively on the frame column (1), and each steel pipe supporting member (9) and lower chord (6) node on it are fixed together.
5, the framework of making floor of the composite space truss structure according to claim 3; It is characterized in that: described presstressed reinforcing steel (8) is the dual slope presstressed reinforcing steel; The dual slope presstressed reinforcing steel passes two ends, positioning supporting part (10) bottom back by reinforcing bar and is anchored at frame column (1) and goes up and form, and positioning supporting part (10) has the base of a circular arc, and the bottom surface of base is penetrated with groove; The base upper end is welded with the oblique steel pipe of symmetric arrangement, and tiltedly steel pipe and lower chord node are fixed together.
6, the framework of making floor of the composite space truss structure according to claim 3; It is characterized in that: described presstressed reinforcing steel (8) is three strong points, four broken line steel bars; Three strong points, four broken line steel bars pass two ends, positioning supporting part (10) bottom back by reinforcing bar and are anchored at frame column (1) and go up and form; Positioning supporting part (10) has the base of a circular arc; The bottom surface of base is penetrated with groove, and the base upper end is welded with the oblique steel pipe of symmetric arrangement, and tiltedly steel pipe and lower chord (6) node are fixed together; One steel pipe supporting member (9) respectively is set between the two ends of positioning supporting part (10) and reinforcing bar anchoring, and each steel pipe supporting member (9) is fixed between presstressed reinforcing steel (8) and lower chord (6) node.
7, the described job practices of making the framework of floor of the composite space truss structure of a kind of claim 1; It is characterized in that: build frame column (1) earlier; Between frame column (1), build framework side bar (2) and form the building frame; The node of the node of installing frame trestle (1) and composite space truss floor (3) junction, framework side bar (2) and composite space truss floor (3) junction; Weld the web member (5) at above-mentioned node place, and then carry out the connection of lower-chord panel point, lower chord (6) successively and form rack, through junction plate (7) armored concrete slab (4) is installed on the rack at last; Thereby accomplish the installation of the composite space truss floor (3) of the bottom, other each floor plates are installed are so successively accomplished until frame construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100475505A CN102140850B (en) | 2011-02-28 | 2011-02-28 | Frame with floors of composite grid structure and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100475505A CN102140850B (en) | 2011-02-28 | 2011-02-28 | Frame with floors of composite grid structure and construction method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102140850A CN102140850A (en) | 2011-08-03 |
| CN102140850B true CN102140850B (en) | 2012-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011100475505A Expired - Fee Related CN102140850B (en) | 2011-02-28 | 2011-02-28 | Frame with floors of composite grid structure and construction method thereof |
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| CN (1) | CN102140850B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103015740A (en) * | 2012-12-21 | 2013-04-03 | 武汉大学 | Anchoring method for using steel pipe to reinforce compressed component |
| CN103266770A (en) * | 2013-06-09 | 2013-08-28 | 江苏南通六建建设集团有限公司 | Construction process of multi-layer sheet type sectional steel frame concrete combined structure |
| CN107355087A (en) * | 2017-08-04 | 2017-11-17 | 深圳市晴方投资管理有限公司 | The extending old building steelframe structure of energy-efficient environment-friendly multifunctional |
| CN107916741B (en) * | 2017-12-22 | 2023-07-25 | 深圳职业技术学院 | Reticulated shell roof reinforcing device |
| CN107916798A (en) * | 2017-12-22 | 2018-04-17 | 河北建筑设计研究院有限责任公司 | The building structure of skyscraper is built suitable for tier building set |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2229481Y (en) * | 1995-10-20 | 1996-06-19 | 中国建筑科学研究院建筑结构研究所 | Complex prestressing force concrete frame inverted offset beam slab |
| CN2496950Y (en) * | 2001-08-27 | 2002-06-26 | 高文利 | Reinforcing mattress frame special for floorslab |
| JP2005171569A (en) * | 2003-12-09 | 2005-06-30 | Toshiki Iida | Earthquake resisting panel |
| JP2010275769A (en) * | 2009-05-28 | 2010-12-09 | Nanba Kenchiku Kenkyushitsu:Kk | Fibrous floating-tile-retaining material and tile-exfoliation preventing construction method |
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2011
- 2011-02-28 CN CN2011100475505A patent/CN102140850B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2229481Y (en) * | 1995-10-20 | 1996-06-19 | 中国建筑科学研究院建筑结构研究所 | Complex prestressing force concrete frame inverted offset beam slab |
| CN2496950Y (en) * | 2001-08-27 | 2002-06-26 | 高文利 | Reinforcing mattress frame special for floorslab |
| JP2005171569A (en) * | 2003-12-09 | 2005-06-30 | Toshiki Iida | Earthquake resisting panel |
| JP2010275769A (en) * | 2009-05-28 | 2010-12-09 | Nanba Kenchiku Kenkyushitsu:Kk | Fibrous floating-tile-retaining material and tile-exfoliation preventing construction method |
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