CN104100000A - Steel reinforced concrete frame four-corner barrel bi-directional large-span steel truss mixed structure - Google Patents
Steel reinforced concrete frame four-corner barrel bi-directional large-span steel truss mixed structure Download PDFInfo
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Abstract
The invention relates to a steel reinforced concrete frame four-corner barrel bi-directional large-span steel truss mixed structure. The structural system is arranged as a rectangle in a plane, barrels are arranged at four corners, the planes of the barrels are arranged evenly and symmetrically, and each barrel is a steel reinforced concrete barrel internally provided with steel embedded columns or end columns. Bi-directional large-span column nets are connected through steel trusses. At a floor elevation position, the steel trusses are connected through a plurality of large-span steel secondary beams, and a supporting steel secondary beam is arranged on the outside of large-span steel secondary beam planes. Column nets adjacent to the large-span column nets are connected through steel beams or steel reinforced concrete beams, and frame columns in a supporting steel component area are steel reinforced concrete columns. A large-span area floor system is formed by paving profiled steel sheets and reinforced concrete floors on floor beams. The steel reinforced concrete frame four-corner barrel bi-directional large-span steel truss mixed structure meets standard requirements and meets the requirements of bottom floors for bi-directional large span and upper floors for large space, is safe, reliable, economical, reasonable, convenient and practical.
Description
Technical field
The present invention relates to a kind of novel two-way large span combination construction for highrise building, be particularly related to a kind of steel reinforced concrete frame quadrangular barrel body two-way greatly across steel truss combination construction, belong to the two-way large innovative technology across steel truss combination construction of steel reinforced concrete frame quadrangular barrel body.
Background technology
At present, highrise building is subject to the multiple restriction of urban planning and building function, and on the one hand, building laterally exists urban planning road must cross architecture bottom layer requirement, and building longitudinally also exists the demand of building function to large space; On the other hand, also there is the large span spaces such as multi function hall is set in upper floor subregion, makes structural system in the two-way large span problem that all exists, and traditional structure system still can not finely address the above problem.Consider that structural system must possess certain anti-side rigidity and anti-twisting property, to meet the demand of the operating modes such as normal use bearing capacity, antidetonation and wind resistance.In conjunction with horizontal planning of building, at four jiaos, concrete barrel is set, can provide powerful anti-side rigidity and anti-twisting property to structure.Large span adopts steel truss to connect, and it is 1～2 high layer by layer that depth of truss is got.Cylindrical shell, profile steel concrete column and steel truss are combined into one, and form steel reinforced concrete frame quadrangular barrel body two-way greatly across steel truss combination construction.The real abdomen formula of spaced set I-steel secondary beam (when span is larger, can adopt the real abdomen formula girder steel of variable cross-section or little steel truss) between steel truss, girder steel top flange end face is laid profiled sheet, and concreting floor, forms floor system.Being arranged on of steel truss web member meets under structural member reasonable stress prerequisite, can the needs in door opening, room be set according to building function, gives flexible arrangement.The comprehensive employing of above technical measures, is subject to the multiple requirement of urban planning and building function and forms two-way large span building, in the new structure system meeting under the requirement of structural system indices, can effectively address the above problem.
Summary of the invention
The object of the invention is to the deficiency for existing traditional structure system, a kind of code requirement that meets is provided, safe and reliable, the steel reinforced concrete frame quadrangular barrel body of economical rationality is two-way greatly across steel truss combination construction.The present invention is a kind of two-way large span combination construction, solves the two-way large span of bottom floor and the requirement of upper floor to large space simultaneously.
Technical scheme of the present invention is: steel reinforced concrete frame quadrangular barrel body of the present invention is two-way greatly across steel truss combination construction, the layout of combination construction is rectangle, cylindrical shell is arranged at four jiaos, the layout of cylindrical shell symmetrically, between two-way large span post net, by some longitudinal steel trusss and horizontal steel truss, connect respectively, longitudinally steel truss and horizontal steel truss are provided with upper chord and lower chord, the end face of upper chord and lower chord is in floor absolute altitude position, between adjacent longitudinal steel truss, by some large-span steel secondary beams, connect, large-span steel secondary beam plane arranges supporting steel secondary beam outward, longitudinally the upper chord in steel truss and horizontal steel truss all connects and is connected with floor steel-frame beam with lower chord, in cylindrical shell, be provided with shaped steel sleeper or newel post, and the dark beam of steel reinforced concrete, shaped steel sleeper or newel post are connected with the dark beam of steel reinforced concrete, concrete wall is formed to a dark framework, cylindrical shell arranges the dark beam of steel reinforced concrete at floor absolute altitude place, also connect and be connected across steel-frame beam with adjacent, in floor absolute altitude position, the steel-frame beam of the contiguous floors absolute altitude position arranging with cylindrical shell is all connected with the dark beam of steel reinforced concrete in cylindrical shell, upper chord in longitudinal steel truss, lower chord, intermediate floor beam all extends in the cylindrical shell of two ends, and be communicated with the dark beam of steel reinforced concrete in cylindrical shell, by upper chord, lower chord, intermediate floor beam, steel-frame beam, large-span steel secondary beam, the region of the superstructure support system that steel secondary beam forms, lay profiled sheet, and build reinforced concrete floor.
Above-mentioned large-span steel secondary beam is real abdomen formula girder steel or little steel truss.
Above-mentioned some large-span steel secondary beams are set in qually spaced between adjacent longitudinal steel truss.
Above-mentioned longitudinal steel truss, horizontal steel truss, steel-frame beam all support by steel reinforced concrete frame post.
Above-mentioned cylindrical shell is concrete barrel, and end and the bight of concrete barrel are provided with steel column, and concrete tube end of body is connected with the dark beam of steel reinforced concrete with the steel column that bight arranges, and concrete wall is formed to a dark framework.
Above-mentioned longitudinal steel truss and the laterally height of steel truss are got 1 floor high altitude, or get 2 floor high altitudes.
Above-mentioned steel-frame beam is girder steel or girder with rolled steel section en cased in concrete.
Said frame post is profile steel concrete column, and longitudinally the both sides of steel truss and horizontal steel truss are equipped with profile steel concrete column, and longitudinally steel truss and horizontal steel truss and frame column are for being rigidly connected.
Above-mentioned longitudinal steel truss and laterally steel truss are also provided with diagonal web member and vertical web member, diagonal web member and vertical web member adopt real abdomen formula i iron, and wherein diagonal web member is placed in strong axle in plane, or is positioned at outside plane, and laterally the diagonal web member in steel truss only arranges within the scope of story height, does not cross over floor.
Upper chord in above-mentioned longitudinal steel truss and laterally steel truss, lower chord be perpendicular to longitudinally steel truss and the laterally direction of steel truss, the real abdomen formula steel secondary beam of spaced set or little steel truss; Above-mentioned real abdomen formula girder steel top or small-sized steel truss end face are laid profiled sheet, and in back top flange, peg are set, and peg stretches in cast-in-place concrete floor, can guarantee beam slab co-operation.
The present invention adopts four bights of building that cylindrical shell is set, two-way large span connects by steel truss, between frame column, steel-frame beam or girder with rolled steel section en cased in concrete are set between frame column and cylindrical shell, equidistant real abdomen formula steel secondary beam is set between steel truss, on steel secondary beam, lay profiled sheet, and concreting superstructure.Four bights arrange Core Walls Structure and the structure of two-way steel truss are set, and can guarantee that structural system possesses suitable anti-side rigidity and anti-twisting property.The present invention compared with prior art, has following beneficial effect:
1, meet the multi-functional requirements such as urban planning and horizontal planning of building, structural system is safe and reliable, economical rationality;
2, utilize staircase, elevator hoistways that shear wall is set, form cylindrical shell, do not affecting under building function prerequisite, to structural system, provide needed anti-side rigidity and anti-twisting property, meanwhile, increase the effective usable floor area of building;
3, give full play to the mechanical characteristic of steel, concrete bi-material, large span adopts steel work, and in cylindrical shell, each section shear wall end arranges sleeper or the newel post that includes shaped steel, and strength of materials utilization rate is high, saving construction cost;
4, steel truss and frame column connected node are simply effective, and power transmission is direct, and construction is convenient;
5, on floor steel secondary beam, lay profiled sheet as template, simplify working procedure, reduce construction formwork expense, accelerate speed of application;
6, steel truss web member can give flexible arrangement according to building function needs, accomplishes the unification of building function and structural element reasonable stress.
The present invention is applicable to high-rise long span structure, and large span partly adopts steel work, can be in factory process, and scene directly lifts, and ensures the quality of products, and saves labour cost.
The present invention is a kind of reliable design, excellent earthquake resistance, is applicable to the structural system of long span building thing, has a extensive future.
Accompanying drawing explanation
Fig. 1 is the layout plan of the present invention typical case floor;
Fig. 2 is the structural representation of the embodiment of the present invention 1 steel reinforced concrete angle cylinder;
Fig. 3 is the structural representation of longitudinal steel truss in the embodiment of the present invention 2;
Fig. 4 is the structural representation of longitudinal steel truss in the embodiment of the present invention 3;
Fig. 5 is the structural representation of horizontal steel truss in the embodiment of the present invention 4;
Fig. 6 is the layout plan that the present invention is applied to Practical Project.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
Steel reinforced concrete frame quadrangular barrel body of the present invention is two-way greatly across steel truss combination construction as shown in Figure 1.Steel reinforced concrete frame quadrangular barrel body of the present invention is two-way greatly across steel truss combination construction, the layout of its structure is rectangle, cylindrical shell 1 is arranged at four jiaos, the layout of cylindrical shell 1 symmetrically, in cylindrical shell 1, be provided with shaped steel sleeper and shaped steel newel post 12, and the dark beam 18 of steel reinforced concrete, shaped steel sleeper is connected with the dark beam 18 of steel reinforced concrete with shaped steel newel post 12, concrete wall is formed to a dark framework, between two-way large span post net, by longitudinal steel truss 4 and horizontal steel truss 5, connect respectively, upper chord 13 and lower chord 14 end faces are in floor absolute altitude position, longitudinally between steel truss 4, by some large-span steel secondary beams or small-sized steel truss 7, connect, large-span steel secondary beam or small-sized steel truss 7 planes arrange supporting steel secondary beam 10 outward, longitudinally the upper chord 13 in steel truss 4 and horizontal steel truss 5 all connects and is connected with floor steel-frame beam 6 with lower chord 14, in addition, cylindrical shell 1 arranges the dark beam 18 of steel reinforced concrete at floor absolute altitude place, connect and be connected across steel-frame beam 6 with adjacent, at floor absolute altitude, all be connected with the dark beam 18 of the interior steel reinforced concrete of cylindrical shell 1 with the steel-frame beam 6 of cylindrical shell 1 contiguous floors absolute altitude position, upper chord 13 in longitudinal steel truss 4, lower chord 14, intermediate floor beam 17 all extends in two ends cylindrical shell 1, and be communicated with the dark beam 18 of steel reinforced concrete in cylindrical shell 1, longitudinally diagonal web member 15 arrangement forms in steel truss 4 are meeting under the prerequisite of steel truss reasonable stress, can require suitably to adjust according to building function, above-mentioned cylindrical shell 1 is concrete barrel 11, the end of concrete barrel 11 and bight are provided with steel column 12, concrete barrel 11 ends are connected with the dark beam 18 of steel reinforced concrete with the steel column 12 that bight arranges, each section concrete body of wall in cylindrical shell 1 is formed to a dark framework, by upper chord 13, lower chord 14, intermediate floor beam 17, steel-frame beam 6, large-span steel secondary beam or small-sized steel truss 7, steel secondary beam 8 is the region of superstructure support system, lay profiled sheet, and build reinforced concrete floor.
Layout of the present invention is rectangle, and cylindrical shell is arranged at four jiaos, and cylindrical shell layout symmetrically, its objective is enough anti-side rigidity and torsional rigidities to structural system are provided.Above-mentioned upper chord 13 and lower chord 14 end faces are in floor absolute altitude position.Between above-mentioned longitudinal steel truss 4, the real abdomen formula steel secondary beam of spaced set or small-sized steel truss 7 connect, and steel secondary beam or small-sized steel truss plane arrange supporting steel secondary beam 10 outward, so that plane outer lateral support to be provided.Above-mentioned upper chord 13 all connects and is connected with floor steel-frame beam 6 with lower chord 14, to strengthen its globality.Cylindrical shell 1 arranges the dark beam 18 of steel reinforced concrete at floor absolute altitude place, connect and be connected across steel-frame beam 6 with adjacent, from construction measure, strengthens structural system globality.Corresponding, in concrete barrel 11 ends and bight, according to calculating bearing capacity and constructing, require to arrange steel column 12.Above-mentioned longitudinal steel truss 4, horizontal steel truss 5, steel-frame beam 6 all support by carriage trestle 2, in the present embodiment, above-mentioned carriage trestle 2 is profile steel concrete column, longitudinally the both sides of steel truss 4 and horizontal steel truss 5 are equipped with profile steel concrete column, and longitudinally steel truss 4 and horizontal steel truss 5 and profile steel concrete column 2 are for being rigidly connected.Above-described longitudinal member and floor levels member form the main bearing member of total system.Wherein, described cylindrical shell be three or four sides shear wall is set, thereby surround, form cylindrical shell, shear wall can arrange door and window hole at rational position.Its middle cylinder body 1 wall thickness must be according to calculation requirement setting, and meets the minimum dimension requirement that end and bight arrange shaped steel sleeper and shaped steel newel post.Cylindrical shell is surrounded and is formed by the concrete shear force wall of end and bight configuration shaped steel sleeper and shaped steel newel post and shear wall that floor place arranges the dark beam of steel reinforced concrete.
Fig. 2 is the cylindrical shell schematic diagram of four jiaos, at floor absolute altitude, all be connected with the dark beam 18 of the interior steel reinforced concrete of cylindrical shell 1 with steel-frame beam 6, steel truss upper chord 13, lower chord 14, the intermediate floor beam 17 of cylindrical shell 1 contiguous floors absolute altitude position, can increase structural system globality.In figure, shaped steel sleeper is connected with the dark beam 18 of steel reinforced concrete with shaped steel newel post 12, can form a dark framework to concrete wall, favourable to improving cylindrical shell 1 shear behavior.
Fig. 3 is that steel truss is longitudinally arranging steel truss structure elevational schematic view, be adapted in Fig. 6 longitudinal edge across the larger position of span, its both sides are the cylindrical shell 1 of supporting steel truss, upper chord 13 in steel truss 4, lower chord 14, intermediate floor beam 17 all extend in the body of wall of two ends, be communicated with the dark beam 18 of steel reinforced concrete in cylindrical shell 1, can guarantee effective transmission of longitudinal force and horizontal force.In steel truss 4, diagonal web member 15 arrangement forms are meeting under the prerequisite of steel truss reasonable stress, can require suitably to adjust according to building function, consider near support position web member internal force larger, therefore in the form near adopting right-angled intersection diagonal web member between bearing first segment, at normal two diagonal web members of operational phase, bear respectively pulling force and pressure, play the effect of sharing load.And the single syncline web member being arranged symmetrically with along the center line of span centre take and bear pulling force as main, can give full play to steel strength utilization rate between middle node.In Fig. 3, steel truss height accounts for 2 high layer by layer.
Fig. 4 is that steel truss is longitudinally arranging steel truss structure elevational schematic view, is suitable for the less position of longitudinal post net span in Fig. 1,6, and steel truss internode reasonable quantity reduces, similar with 3 methods of attachment of steel truss in Fig. 3.
Fig. 5 is that steel truss is in horizontally set steel truss structure elevational schematic view, feature is that diagonal web member only arranges within the scope of story height, do not cross over floor, two internode lower areas at span centre do not arrange diagonal web member and vertical web member, to coordinate building function to need, this region can form compared with large span space.
Fig. 6 is typical floor structure layout plan in concrete engineering example, and the present invention is applied in certain Practical Project, seismic fortification intensity 7 degree, first group of classification of design earthquake, site category III class.Underground 4 layers of this engineering, 4 layers on the ground, superstructure main body overall height 24.5m, structural system adopts steel reinforced concrete frame quadrangular barrel body two-way greatly across steel truss combination construction, between two high buildings.Floor height is as follows: 1 layer of 7.0m; 2 layers of 5.6m; 3 layers of 6.0m; 4 layers of 5.9m.2 layers only have superstructure at four jiaos of staircases and elevator hoistways, and 2 layers of bottoms, most of region are logical high.Based on urban planning requirement, there is a planning curb to be horizontally through podium bottom central region, in addition, coordinating building to arrange needs, and podium longitudinally left side end bay, middle span colum network size is respectively 50.4m, 33.6m.Transverse end is amphi-position set to two high building bottom halls of neighbour and is communicated with, and must arrange compared with large span space, and transverse post net is of a size of 27.2m.3 layers of zone line are 800 people's multi function halls, and 3,4 layers logical high, forms 27.2m * 33.6m without column space.Four bights of floor level utilize staircase to arrange shear wall, be encircled into cylindrical shell, and coordinate building function need to reserve door and window hole by 3 shear walls, and the setting of cylindrical shell symmetrically, provides enough anti-side rigidity and anti-twisting properties to structural system.At the lateral arrangement 4 horizontal steel trusss 5 in road, longitudinally arrange the 3 longitudinal steel trusss 4 in road respectively.Between other post nets, arrange as the case may be steel-frame beam 6, girder with rolled steel section en cased in concrete 9, concrete beam 19.With upper member, jointly form the main stress system of structure.The real abdomen formula of equidistant long span variable cross-section steel secondary beam 7, steel secondary beam 8 laterally, are longitudinally being set between steel truss, and steel secondary beam center to center distance is controlled in 3m.Profiled sheet is laid in girder steel top flange, and builds cast-in-place concrete floor, jointly forms floor system.The post of supporting steel truss 4, steel truss 5, steel-frame beam 6, girder with rolled steel section en cased in concrete 9 is profile steel concrete column 2, and other posts that support on a small quantity concrete frame beam are reinforced concrete post 3.Between real abdomen formula steel secondary beam or little steel truss, in span centre position, arrange perpendicular to this Liangping face outer support girder steel, as its plane outer support.
The present invention takes into full account the requirement of building function, two-way large span space, by utilizing story height, adopts steel truss as superstructure support system in large span region.In addition, not affecting under building use function prerequisite, utilize four jiaos of building filled wall positions (as: staircase, elevator hoistways body of wall etc.) that shear wall is set, have 3～4 road shear walls to surround and form cylindrical shell, can be used as structure lateral resistant member.In addition, in steel truss, web member can be offered door opening or large space requirement is adjusted flexibly in conjunction with building function, accomplishes the coordinating and unifying of building function and structural system reasonable stress.In addition, the frame column of supporting steel truss of the present invention, girder steel, girder with rolled steel section en cased in concrete adopts profile steel concrete column, excellent earthquake resistance, and bean column node construction measure advantages of simple, and power transmission is direct.Meanwhile, shaped steel sleeper and newel post are set in shear wall of the present invention, not only meet bearing capacity demand, and realization is connected with floor girder with rolled steel section en cased in concrete or the reasonable of steel-frame beam node.The present invention is applicable to that bottom floor and upper floor are all had to the high building structure of large space requirement, particularly two-way long span building, has larger generality and practicality.
Example of the present invention is enumerated above-mentioned embodiment; but the variation due to building function layout; corresponding construction system also can respective flexible be changed, unless the structural system causing is changed, exceeds scope of the present invention, otherwise within all should being included in protection scope of the present invention.
Claims (10)
1. a steel reinforced concrete frame quadrangular barrel body is two-way greatly across steel truss combination construction, the layout that it is characterized in that this structure is rectangle, cylindrical shell is arranged at four jiaos, the layout of cylindrical shell symmetrically, between two-way large span post net, by some longitudinal steel trusss and horizontal steel truss, connect respectively, longitudinally steel truss and horizontal steel truss are provided with upper chord and lower chord, the end face of upper chord and lower chord is in floor absolute altitude position, between adjacent longitudinal steel truss, by some large-span steel secondary beams or small-sized steel truss, connect, large-span steel secondary beam or small-sized steel truss plane arrange supporting steel secondary beam outward, longitudinally the upper chord in steel truss and horizontal steel truss all connects and is connected with floor steel-frame beam with lower chord, in cylindrical shell, be provided with shaped steel sleeper or newel post, and the dark beam of steel reinforced concrete, shaped steel sleeper or newel post are connected with the dark beam of steel reinforced concrete, concrete wall is formed to a dark framework, cylindrical shell arranges the dark beam of steel reinforced concrete at floor absolute altitude place, also connect and be connected across steel-frame beam with adjacent, in floor absolute altitude position, the steel-frame beam of the contiguous floors absolute altitude position arranging with cylindrical shell is all connected with the dark beam of steel reinforced concrete in cylindrical shell, upper chord in longitudinal steel truss, lower chord, intermediate floor beam all extends in the cylindrical shell of two ends, and be communicated with the dark beam of steel reinforced concrete in cylindrical shell, by upper chord, lower chord, intermediate floor beam, steel-frame beam, large-span steel secondary beam or little steel truss, the region of the superstructure support system that steel secondary beam forms, lay profiled sheet, and build reinforced concrete floor.
2. steel reinforced concrete frame quadrangular barrel body according to claim 1 is two-way greatly across steel truss combination construction, it is characterized in that above-mentioned large-span steel secondary beam is real abdomen formula girder steel or little steel truss.
3. steel reinforced concrete frame quadrangular barrel body according to claim 1 is two-way greatly across steel truss combination construction, it is characterized in that above-mentioned some large-span steel secondary beams or little steel truss are set in qually spaced between adjacent longitudinal steel truss.
4. steel reinforced concrete frame quadrangular barrel body according to claim 1 is two-way greatly across steel truss combination construction, it is characterized in that above-mentioned longitudinal steel truss, horizontal steel truss, steel-frame beam are all supported on frame column.
5. steel reinforced concrete frame quadrangular barrel body according to claim 1 is two-way greatly across steel truss combination construction, it is characterized in that above-mentioned cylindrical shell is concrete barrel, the end of concrete barrel and inside, bight all arrange steel column, concrete tube end of body is connected with the dark beam of steel reinforced concrete with the steel column that bight arranges, and concrete wall is formed to a dark framework.
6. steel reinforced concrete frame quadrangular barrel body according to claim 1 is two-way greatly across steel truss combination construction, it is characterized in that the height of above-mentioned longitudinal steel truss and horizontal steel truss is got 1 floor high altitude, or gets 2 floor high altitudes.
7. steel reinforced concrete frame quadrangular barrel body according to claim 1 is two-way greatly across steel truss combination construction, it is characterized in that above-mentioned steel-frame beam is girder steel or girder with rolled steel section en cased in concrete.
8. steel reinforced concrete frame quadrangular barrel body according to claim 5 is two-way greatly across steel truss combination construction, it is characterized in that said frame post is profile steel concrete column, longitudinally the both sides of steel truss and horizontal steel truss are equipped with frame column, and longitudinally steel truss and horizontal steel truss and frame column are rigidly connected.
9. two-way greatly across steel truss combination construction according to the steel reinforced concrete frame quadrangular barrel body described in claim 1 to 8 any one, it is characterized in that above-mentioned longitudinal steel truss and horizontal steel truss are also provided with diagonal web member and vertical web member, diagonal web member and vertical web member adopt real abdomen formula i iron, wherein diagonal web member is placed in strong axle in plane, or be positioned at outside plane, and laterally the diagonal web member in steel truss only arranges within the scope of story height, does not cross over floor.
10. steel reinforced concrete frame quadrangular barrel body according to claim 9 is two-way greatly across steel truss combination construction, it is characterized in that above-mentioned longitudinal steel truss and laterally the upper chord in steel truss, lower chord perpendicular to longitudinally steel truss and the laterally direction of steel truss, the real abdomen formula steel secondary beam of spaced set or little steel truss; Above-mentioned real abdomen formula girder steel top or small-sized steel truss end face are laid profiled sheet, and in back top flange, peg are set, and peg stretches in cast-in-place concrete floor.
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| CN105002982A (en) * | 2015-07-27 | 2015-10-28 | 云南建工钢结构有限公司 | Bundled tube steel framework combined structure for industrial assembled steel structure residence |
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