CN205369631U - Can alleviate mixed type superstructure that dead weight just has good structural stiffness - Google Patents
Can alleviate mixed type superstructure that dead weight just has good structural stiffness Download PDFInfo
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- CN205369631U CN205369631U CN201521053110.0U CN201521053110U CN205369631U CN 205369631 U CN205369631 U CN 205369631U CN 201521053110 U CN201521053110 U CN 201521053110U CN 205369631 U CN205369631 U CN 205369631U
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Abstract
The utility model discloses a can alleviate mixed type superstructure that dead weight just has good structural stiffness, which comprises a column, pile cap, the multi -ribbed plate of dark roof beam and polylith square, the stand is many of vertical setting, many stands are even dot matrix form and distribute, the many roof beams that dark roof beam set up for vertically and horizontally staggered, all be provided with a dark roof beam between the adjacent stand, per four stands and four dark roof beams enclose into the rigidity frame of a square, in each square rigidity frame, secretly the both sides of roof beam all are provided with the hollow slab band of going up that parallels and be the distribution of continuous form with dark roof beam along dark roof beam length direction, hollow both ends of going up the slab band extend to corresponding pile cap department, it is provided with the center flat board that the size is greater than the multi -ribbed plate to be located the rigidity frame central point department of putting, the multi -ribbed plate lies in dull and stereotyped and hollow the going up between the slab band in center. This mixed type superstructure can alleviate the dead weight of light floor, adopts the dull and stereotyped and common bearing of multi -ribbed plate in center for this superstructure has hollow superstructure and ribbed floor's advantage concurrently.
Description
Technical field
This utility model relates to the building cover structure in building structure, specifically referring to a kind of mixed type superstructure that can alleviate deadweight and have satisfactory texture rigidity, this mixed type superstructure is applicable to the building of the large spans such as office buildings, warehouse Factory Building, underground garage, megastore, school instruction building and library.
Background technology
Hollow building cover and close rib building roof can reduce structure floor height while realizing large bay, also have that concrete amount is few, dead load light, geological process power is little, the sound insulation of structure, feature that heat-proof quality is good, the energy can also be saved, reduce the cost built and use, good economic benefit and social benefit can be produced, it is the prioritizing selection of Green environmental-protection building, applies more and more wider in Practical Project.
Cast-in-situ hollow building roof is exactly, after placing embedded type obturator by certain rule, form the superstructure of cavity in floor through poured in place concrete.Step cast-in-place ribbed adopts exactly and exposes obturator, forms the superstructure of cavity in floor through poured in place concrete.
Close rib building roof common at present is as shown in Figure 1, superstructure includes column 1, cap 2, dark beam 3 and the foursquare waffle beam lattice 4 of polylith, the length of side of waffle beam lattice 4 is 1m, column 1 is vertically arranged many, the distribution in uniform lattice-like of many root posts 1, the quantity of cap 2 is equal with the quantity of column 1, each cap 2 is all cast in a corresponding root post 1 around, dark beam 3 is many beams of crisscross setting, a dark beam 3 it is provided with between adjacent column 1, every four root posts 1 and four dark beams 3 surround a foursquare rigid frame, it is consequently formed the rigid frame of multiple uniform arrangement, four root posts 1 lay respectively on these foursquare four summits, article four, dark beam 3 respectively constitutes this foursquare four edges.
In this close rib building roof, each is by the defined square rigid frame of four root posts 1 and four dark beams 3, and polylith foursquare waffle beam lattice 4 uniform spreading is located in this firm shape frame, thus constitutes whole close rib building roof.
The Chinese patent literature that application number is 200920269370.X discloses a kind of building hollow building cover, specifically a kind of Novel hollow floor with ribbed beams.Purpose is the problem that mould floats, upper and lower thickness of slab differs overcoming prior art to bring when forming hollow building cover, it is provided that a kind of Novel hollow floor with ribbed beams.The concrete technical scheme of the present invention is: Novel hollow floor with ribbed beams, it includes prefabricated cavity member and cast-in-situ steel reinforced concrete waffle beam, described superstructure above be being formed above by the above of waffle beam and top board, being presented herein below by below waffle beam and being formed below of base plate of superstructure.It has the beneficial effect that the difficulty of construction reducing tradition waffle beam hollow building cover.Compared to the prior art have that beam rib is narrow, rib spacing is little, and the constraint and increase substantially the features such as bearing capacity of can intersecting.Upper and lower plates prefabricated makes thickness be preferably minimized in processing, and concrete quality is more closely knit, more reliable.
Application number be 201310490037.2 Chinese patent literature disclose a kind of bi-directional dense rib empty chamber floor and construction method, described bi-directional dense rib empty chamber floor by least one to steel waffle beam, precoated plate, slide bar, Bars In Poured Concrete Slab, cavity and another to waffle beam composition, described slide bar is positioned at the abdominal part of steel waffle beam, precoated plate slides up and down along slide bar, described precoated plate becomes the end template of Bars In Poured Concrete Slab when sliding to slide bar upper end, when precoated plate slides to slide bar lower end with one to steel waffle beam, another to waffle beam and Bars In Poured Concrete Slab enclose cavity, collectively constitute bi-directional dense rib empty chamber floor.Its applicable span is big, bearing capacity is big, easy construction, structure height are low, smooth at the bottom of plate, insulation defening effect is good, fire protecting performance is excellent, there is steel construction and the two-fold advantage of xoncrete structure two-way ribbed slab floor, be suitable for the civil engineering of large span, super-span.
Application number be 200420103009.7 Chinese patent literature disclose a kind of dark hollow-ribbed floor of cast-in-place concrete, belong to building structure technology field.What be particularly suited for industry and civil buildings has beam, beamless hollow floor, it be the cast of one-shot forming concrete hollow floor slab with hidden and dense ribs in use the technology of prefabricated cavity member.A kind of hidden close rib plateless hollow flooring constructed by on-site pouring concrete, it is characterized in that: be made up of with the Cavity structural member placed in the rectangle or rhombus space that are formed between the ribs the reinforcing bar in latticed array or steel concrete rib, rib is high identical with Cavity structural member and shape cooperates.Use this superstructure can make weight to be greatly reduced with the floor of its shaping concrete placement note, improve anti-seismic performance, and there is good soundproof effect, be easy to again interval, user designed, designed room and implement decorations.
Utility model content
The purpose of this utility model is to provide a kind of mixed type superstructure that can alleviate deadweight and have satisfactory texture rigidity, this mixed type superstructure can alleviate light floor deadweight, adopt center board and waffle beam lattice joint action, make the advantage that this mixed type superstructure has hollow building cover and close rib building roof concurrently, not only there is good load bearing effect, and there is the better rigidity of structure and economy.
nullAbove-mentioned purpose of the present utility model realizes by following technical solution: a kind of mixed type superstructure that can alleviate deadweight and have satisfactory texture rigidity，Described superstructure includes column、Cap、Dark beam and the foursquare waffle beam lattice of polylith，Described column is vertically arranged many，Many root posts are the distribution of uniform lattice-like，The quantity of described cap is equal with the quantity of column，Each cap is all cast in around a root post of correspondence，Described dark beam is many beams of crisscross setting，A dark beam it is provided with between adjacent column，Every four root posts and four dark beams surround a foursquare rigid frame，It is consequently formed the rigid frame of multiple uniform arrangement，Four root posts lay respectively on these foursquare four summits，Article four, dark beam respectively constitutes this foursquare four edges，It is characterized in that: in each described square rigid frame，The both sides of dark beam are provided with that parallel and the distribution in sequential like hollow upper strip with dark beam along dark beam length direction，The two ends of hollow upper strip extend to the cap place of correspondence，Contact with corresponding cap，It is positioned at rigid frame center position to be provided with and be sized larger than waffle beam center of a lattice flat board，Described waffle beam case is between described center board and hollow upper strip，Waffle beam lattice ring encloses center board，Hollow upper plate band collar waffle beam lattice.
Superstructure of the present utility model is the mixed type superstructure that hollow upper strip, waffle beam lattice add center board, the waffle beam lattice of dark for original close rib building roof beam both sides are substituted by hollow upper strip, will be located in the polylith waffle beam lattice center board of zone line to substitute simultaneously, so it is not only able to alleviate floor deadweight, this mixed type superstructure adopts center board and waffle beam lattice joint action simultaneously, there is good load bearing effect, and have center board and the advantage of waffle beam lattice concurrently, there is the better rigidity of structure and economy.
In this utility model, the upper end flush of described waffle beam lattice, center board and hollow upper strip three, lower end is flush also.
In this utility model, described center board is square plate, and the length of side of center board is N times of the waffle beam lattice length of side, wherein, and 2≤N≤6, and N is natural number.
In this utility model, the length of side of center board is 3 times of the waffle beam lattice length of side.
In this utility model, the bandwidth of described hollow upper strip is equal with the length of side of waffle beam lattice.
In this utility model, described hollow upper strip is hollow box body structure, and hollow upper strip is provided with at least one cavity along bandwidth direction, and each cavity is all along the through setting of length direction of hollow upper strip.
In this utility model, described cavity is the rectangular body cavity that three structures are identical, and three cavitys are arranged side by side along hollow upper strip bandwidth direction.
In this utility model, described superstructure is span is the long-span floor system of 7～12m.
Compared with prior art, this utility model has following remarkable result:
(1) superstructure of the present utility model is hollow upper strip, waffle beam lattice add the mixed type superstructure of center board, the waffle beam lattice of dark for original close rib building roof beam both sides are substituted by hollow upper strip, will be located in the polylith waffle beam lattice center board of zone line to substitute simultaneously, floor deadweight can be alleviated, the deadweight of center board is only the half of former region waffle beam lattice deadweight, namely center board alleviates floor deadweight about a times than former region waffle beam lattice, this mixed type superstructure adopts center board and waffle beam lattice joint action simultaneously, there is good load bearing effect, there is the better rigidity of structure and economy.
(2) the waffle beam lattice of dark for original close rib building roof beam both sides are substituted by mixed type superstructure of the present utility model by hollow upper strip, it it is a kind of improvement to tradition close rib building roof, utilize the feature that hollow upper strip ratio of rigidity waffle beam lattice rigidity is big, improve strengthening floor slab rigidity, the deformation making floor reduces, improve structure integral rigidity simultaneously, reduce structure displacement under wind action and the displacement under geological process.
(3) the polylith waffle beam lattice center board in the centrally located region of mixed type superstructure of the present utility model substitutes, and alleviating floor deadweight, thus reducing the seismic force of basic load and structure, effectively reducing structural cost.
(4) after mixed type superstructure of the present utility model adopts hollow upper strip, waffle beam lattice to add center board, after the rigidity of superstructure improves, limit girt strip time girt strip controls the support moment of arrangement of reinforcement, mid span moment and support shearing force and all reduces to some extent than tradition close rib building roof, comparing tradition close rib building roof, hollow upper strip, waffle beam lattice add the mixing superstructure of center board more economically.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, this utility model is described in further detail.
Fig. 1 is the overall structure schematic diagram of existing close rib building roof；
Fig. 2 is the overall structure schematic diagram of this utility model mixed type superstructure；
Fig. 3 is 11 profiles of Fig. 2；
Fig. 4 is 22 profiles of Fig. 2；
Fig. 5 is 33 profiles of Fig. 2；
Fig. 6 is this utility model GSSAP pure frame beam index bed illustraton of model；
Fig. 7 is the index bed illustraton of model of this utility model GSSAP pure frame beam waffle beam lattice；
Fig. 8 is the index bed illustraton of model of this utility model GSSAP hollow beam waffle beam lattice+center board combinative structure；
Fig. 9 is the displacement schematic diagrams such as the vertical displacement of this utility model GSSAP pure frame beam waffle beam lattice, and unit is mm；
Figure 10 is the displacement schematic diagrams such as this utility model GSSAP hollow beam waffle beam lattice+center board combinative structure vertical displacement, and unit is mm；
Figure 11 is this utility model GSSAP floor beam internal force structural representation.
Description of reference numerals
1 column, 2 caps, 3 dark beams, 4 waffle beam lattice, 5 hollow upper strips, 51 cavitys,
6 center board, 7 limit girt strips, 8 girt strips I, 9 girt strips II.
Detailed description of the invention
A kind of mixed type superstructure that can alleviate deadweight and have satisfactory texture rigidity as shown in Figures 2 to 5, this superstructure is span is the long-span floor system of 10m, and this superstructure is equally applicable to the long-span floor system that span is 7～12m.
Superstructure includes column 1, cap 2, dark beam 3 and the foursquare waffle beam lattice 4 of polylith, the length of side of waffle beam lattice 4 is 1m, column 1 is vertically arranged many, the distribution in uniform lattice-like of many root posts 1, the quantity of cap 2 is equal with the quantity of column 1, each cap 2 is all cast in a corresponding root post 1 around, dark beam 3 is many beams of crisscross setting, a dark beam 3 it is provided with between adjacent column 1, every four root posts 1 and four dark beams 3 surround a foursquare rigid frame, it is consequently formed the rigid frame of multiple uniform arrangement, four root posts 1 lay respectively on these foursquare four summits, article four, dark beam 3 respectively constitutes this foursquare four edges.
nullIn the present embodiment，Each is by the defined square rigid frame of four root posts 1 and four dark beams 3，The both sides of dark beam 3 are provided with that parallel and the distribution in sequential like hollow upper strip 5 with dark beam 3 along dark beam 3 length direction，The two ends of hollow upper strip 5 extend to cap 2 place of correspondence，Contact with corresponding cap 2，The bandwidth of hollow upper strip 5 is equal with the length of side of waffle beam lattice 4，For 1m，Belt length is the distance between two adjacent caps 2，It is positioned at rigid frame center position and is provided with the center board 6 being sized larger than waffle beam lattice 4，Center board 6 is square plate，The length of side of center board 6 is 3 times of waffle beam lattice 4 length of side，For 3m，Waffle beam lattice 4 are centrally located between flat board 6 and hollow upper strip 5，Polylith waffle beam lattice 4 surround a waffle beam lattice circle，Waffle beam lattice 4 collar center board 6，Hollow upper strip 5 collar waffle beam lattice 4，Waffle beam lattice 4、The upper end flush of center board 6 and hollow upper strip 5 three，Lower end is flush also，The upper end of column 1 is higher than the upper end of waffle beam lattice 4，And lower end is lower than the lower end of waffle beam lattice 4.
In the present embodiment, hollow upper strip 5 is hollow box body structure, and hollow upper strip 5 has been arranged side by side three cavitys 51 along bandwidth direction, and three cavitys 51 are the rectangular body cavity that structure is identical, and each cavity 51 is all along the through setting of length direction of hollow upper strip 5.
As the conversion of the present embodiment, the length of side value of center board 6 can be N times of waffle beam lattice 4 length of side, wherein, and 2≤N≤6, and N is natural number.
As the conversion of the present embodiment, hollow upper strip 5 is provided with at least one cavity 51 along bandwidth direction, such as one or two, each cavity 51 is all along the through setting of length direction of hollow upper strip 5.
The mixed type superstructure of the present embodiment has the advantage of hollow building cover and close rib building roof concurrently, makes floor have the better rigidity of structure and economy.This mixed type superstructure is widely portable to the building of the large spans such as office buildings, warehouse Factory Building, underground garage, megastore, school instruction building and library.
As shown in Fig. 6 to Figure 11, set up the GSSAP frame model of 15 layers, GSSAP is spacious mansion building structure general finite meta software, adopts spacious mansion software to be calculated analyzing, and floor height is 3 meters, 7 degree of antidetonations, post span 8.4 meters, floor thickness 80mm, girder section is 690mm*380mm, girt strip cross section is 180mm*380mm, and girt strip spacing is 1120mm.Floow load: dead load 1.5KN/m2, mobile load 5KN/m2。
Shown in Fig. 7 is pure frame beam waffle beam lattice, and by practical situation at the whole Vierendeel girder of mode input, pure frame beam waffle beam lattice are by truth modeling, and actual (real) thickness input pressed by floor.
Shown in Fig. 8 is hollow beam waffle beam lattice+center board combinative structure, change rib floor model slab strips on columns region into center board, cancel slab strips on columns time girt strip, cancel pars intermedia gradation girt strip simultaneously, only retain 80mm thickness flat board, center board thickness of slab 380mm, hollow inner formwork box sizes is 940mm (length) * 280mm (width) * 235mm (height).Along rib width 50mm, cross rib width 0mm.
Carrying out correlation computations analysis by GSSAP software, result of calculation is as follows:
The global displacement synopsis of table 1:GSSAP pure frame beam waffle beam lattice and hollow beam waffle beam lattice+center board combinative structure, unit is mm
From table 1, after waffle beam lattice change hollow beam waffle beam lattice+center board combinative structure into, rigidity of model increases, and the displacement under wind action and the displacement under geological process are all little than Vierendeel girder waffle beam lattice.
The vertical displacement synopsis of table 2:GSSAP pure frame beam waffle beam lattice and hollow beam waffle beam lattice+center board combinative structure, unit is mm
By table 2 finding, it is little that waffle beam lattice change hollow beam waffle beam lattice+center board combinative structure back rest span centre Displacement Ratio Vierendeel girder waffle beam lattice into, and plate span centre displacement and cap limit change in displacement are little.
Table 3:GSSAP pure frame beam waffle beam lattice and the hollow beam waffle beam lattice+support moment of center board combinative structure middle girder, mid span moment and support shearing force synopsis
From table 3, after waffle beam lattice change hollow beam waffle beam lattice+center board combinative structure into, girder support moment increases to some extent, and girder mid span moment reduces to some extent, and girder support shearing force all increases to some extent than Vierendeel girder waffle beam lattice.
Table 4:GSSAP pure frame beam waffle beam lattice and the support moment of limit girt strip, mid span moment and support shearing force synopsis in hollow beam waffle beam lattice+center board combinative structure
From table 4, after waffle beam lattice change hollow beam waffle beam lattice+center board combinative structure into, limit girt strip controls the support moment of arrangement of reinforcement, mid span moment and support shearing force and all reduces to some extent than Vierendeel girder waffle beam lattice.
Table 5:GSSAP pure frame beam waffle beam lattice and the hollow beam waffle beam lattice+support moment of center board+two limit girt strips of combinative structure middle girder, mid span moment and support shearing force synopsis
Table 6:GSSAP pure frame beam waffle beam lattice and time support moment of girt strip I, mid span moment and support shearing force synopsis in hollow beam waffle beam lattice+center board combinative structure
Table 7:GSSAP pure frame beam waffle beam lattice and time support moment of girt strip II, mid span moment and support shearing force synopsis in hollow beam waffle beam lattice+center board combinative structure
From table 5 to table 7, after waffle beam lattice change hollow beam waffle beam lattice+center board combinative structure into, secondary girt strip controls the support moment of arrangement of reinforcement, mid span moment and support shearing force and all reduces to some extent than Vierendeel girder waffle beam lattice.
By above GSSAP computational analysis:
1, from result of calculation, hollow beam waffle beam lattice+center board combinative structure is by changing waffle beam lattice slab strips on columns into center board, improve structure integral rigidity, the displacement under wind action and the displacement under geological process are all little than waffle beam lattice to be more or less the same with center board.After removing mid portion girt strip, the rigidity of structure is basically unchanged simultaneously, and what span centre floor was conducted oneself with dignity alleviates the reduction being just conducive to brisance structurally.
2, hollow beam waffle beam lattice+center board combinative structure girder controls the support moment of arrangement of reinforcement, mid span moment and support shearing force, and limit girt strip time girt strip controls the support moment of arrangement of reinforcement, mid span moment and support shearing force and all reduces to some extent than waffle beam lattice.
Above-described embodiment of the present utility model is not the restriction to this utility model protection domain; embodiment of the present utility model is not limited to this; all this kind is according to foregoing of the present utility model; ordinary technical knowledge and customary means according to this area; without departing under the above-mentioned basic fundamental thought premise of this utility model; to the amendment of other various ways that this utility model said structure is made, replacement or change, all should drop within protection domain of the present utility model.
Claims (7)
- null1. one kind can alleviate deadweight and have the mixed type superstructure of satisfactory texture rigidity，Described superstructure includes column、Cap、Dark beam and the foursquare waffle beam lattice of polylith，Described column is vertically arranged many，Many root posts are the distribution of uniform lattice-like，The quantity of described cap is equal with the quantity of column，Each cap is all cast in around a root post of correspondence，Described dark beam is many beams of crisscross setting，A dark beam it is provided with between adjacent column，Every four root posts and four dark beams surround a foursquare rigid frame，It is consequently formed the rigid frame of multiple uniform arrangement，Four root posts lay respectively on these foursquare four summits，Article four, dark beam respectively constitutes this foursquare four edges，It is characterized in that: in each described square rigid frame，The both sides of dark beam are provided with that parallel and the distribution in sequential like hollow upper strip with dark beam along dark beam length direction，The two ends of hollow upper strip extend to the cap place of correspondence，Contact with corresponding cap，It is positioned at rigid frame center position to be provided with and be sized larger than waffle beam center of a lattice flat board，Described waffle beam case is between described center board and hollow upper strip，Waffle beam lattice ring encloses center board，Hollow upper plate band collar waffle beam lattice.
- 2. according to claim 1 can alleviate deadweight and there is the mixed type superstructure of satisfactory texture rigidity, it is characterised in that: the upper end flush of described waffle beam lattice, center board and hollow upper strip three, lower end is flush also.
- 3. according to claim 1 can alleviate deadweight and there is the mixed type superstructure of satisfactory texture rigidity, it is characterised in that: described center board is square plate, and the length of side of center board is N times of the waffle beam lattice length of side, wherein, 2≤N≤6, and N is natural number.
- 4. the mixed type superstructure that can alleviate deadweight and there is satisfactory texture rigidity according to claim 3, it is characterised in that: the length of side of center board is 3 times of the waffle beam lattice length of side.
- 5. the mixed type superstructure that can alleviate deadweight and there is satisfactory texture rigidity according to claim 1, it is characterized in that: described hollow upper strip is hollow box body structure, hollow upper strip is provided with at least one cavity along bandwidth direction, and each cavity is all along the through setting of length direction of hollow upper strip.
- 6. the mixed type superstructure that can alleviate deadweight and there is satisfactory texture rigidity according to claim 5, it is characterised in that: described cavity is the rectangular body cavity that three structures are identical, and three cavitys are arranged side by side along hollow upper strip bandwidth direction.
- 7. can alleviate deadweight and there is the mixed type superstructure of satisfactory texture rigidity according to any one of claim 1 to 6, it is characterised in that: described superstructure is span is the long-span floor system of 7～12m.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105421633A (en) * | 2015-12-16 | 2016-03-23 | 广东省建筑设计研究院 | Composite floor with self-weight reducing function and favorable structural stiffness |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105421633A (en) * | 2015-12-16 | 2016-03-23 | 广东省建筑设计研究院 | Composite floor with self-weight reducing function and favorable structural stiffness |
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