CN103397695A - Concrete filled steel tube combination column high position connected structure provided with bidirectional steel trusses - Google Patents
Concrete filled steel tube combination column high position connected structure provided with bidirectional steel trusses Download PDFInfo
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- CN103397695A CN103397695A CN2013103471492A CN201310347149A CN103397695A CN 103397695 A CN103397695 A CN 103397695A CN 2013103471492 A CN2013103471492 A CN 2013103471492A CN 201310347149 A CN201310347149 A CN 201310347149A CN 103397695 A CN103397695 A CN 103397695A
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Abstract
The invention discloses a concrete filled steel tube combination column high position connected structure provided with bidirectional steel trusses. Middle floors and lower floors of a structural system are divided into two mutually-independent towers. The structure system of each tower is a reinforced concrete frame shear wall structure. A plurality of floors on the upper portions of the two towers are connected into a whole through the main steel trusses. The auxiliary steel trusses are arranged in the direction perpendicular to the main steel trusses. The bidirectional steel truss system is formed. The connecting manners of supports at the two ends of the main steel trusses and the two ends of the auxiliary steel trusses are rigid connection and hinged connection respectively. Frame columns of the two towers are concrete filled steel tube combination columns. The frame columns, which are used for supporting the main steel trusses, on the two sides and shear walls, which are used for supporting the main steel trusses, on the two sides are the concrete filled steel tube combination columns with dual built-in steel tubes and end columns with single built-in steel tubes. The concrete filled steel tube combination column high position connected structure meets the standard requirements, is safe, reliable, economical and reasonable, meets the building elevation modeling and building functional requirements, and is reasonable and practical.
Description
Technical field
The present invention relates to a kind of high-position conjoined structure for highrise building, be particularly related to a kind of concrete filled steel tube coupled column high-position conjoined structure that the two-way steel truss is set, belong to the innovative technology of the concrete filled steel tube coupled column high-position conjoined structure that the two-way steel truss is set.
Background technology
At present, highrise building is based on the needs of place situation, sunshine, building function, many the adjacent layouts of high building, the moulding of high building facade faces the diversified market demand, adjacent two high buildings are connected as a single entity being positioned at the some floors in top (generally being no less than 4 floor), make the positive facade of building form the moulding of door shape, on the one hand, elevation of building unique model needs have been realized, on the other hand, some floors are connected as a single entity two independent high buildings on top, on building function, traffic connection are set up in two buildings, are convenient to the multiple consideration of indoor function.Consider the feasibility of this type of structural system, it bears the multi-state effect of vertical and horizontal loading, consider that for the form that more floor connects employing is rigidly connected, and supporting zone structural system all adopts steel work.By at disjunctor bottom 1 floor or 2 floor, the double action that steel truss plays two high buildings of contact and supports the disjunctor superstructure being set.Consider that high building frame segment trestle must possess enough supporting capacitys, its section form adopts the concrete filled steel tube coupled column, wherein, support built-in pair of steel pipe of both sides frame column of disjunctor master steel truss, form the concrete filled steel tube coupled column of built-in pair of steel pipe, so that at major axes orientation, possess enough bendings resistance.The floor in disjunctor zone adopts on profiled sheet the Cast-in-Place RC Floor Slab form of laying, and floor is along main span degree direction, according to calculation requirement, enough tensile reinforcements are set in plate, plate muscle double-layer double-direction arranges, and along main steel truss direction plate muscle, extends into both sides high building one across, and reliable anchoring.The high building part under the prerequisite that meets the building function layout, utilizes elevator hoistways and staircase that shear wall is set, and at the appropriate shear wall of the end bay region division of two high building both sides, to play the effect that improves the anti-side of structural system and torsional rigidity.The comprehensive employing of above technical measures, rationally realize high-position conjoined demand, forms technically a kind of new structure system, can effectively address the above problem.
Summary of the invention
The object of the invention is to for the existing building plane function, some floors are connected as a single entity on top with two high buildings in requirement, make the elevation of building moulding present a shape moulding, propose a kind of code requirement that meets, and are safe and reliable, the high-position conjoined structure of economical rationality.The present invention is a kind of with high-position conjoined shear force of frame wall construction, solves two high buildings separate at the middle and lower part floor, and the new structure that is connected as a single entity in upper floor.
technical scheme of the present invention is: the concrete filled steel tube coupled column high-position conjoined structure that the two-way steel truss is set in the present invention, in structural system, the bottom floor is divided into two separate high buildings, the turret structure system adopts the reinforced concrete frame shear wall structure, the upper floor of two high buildings is connected as a single entity by main steel truss, and time steel truss is being set perpendicular to main steel truss direction, form the two-way steel girder system, the frame column of two high buildings adopts the concrete filled steel tube coupled column, the frame column of supported on both sides master's steel truss and shear wall adopt respectively the concrete filled steel tube coupled column of built-in pair of steel pipe and the newel post of built-in single steel pipe.
Above-mentioned main steel truss height is got 1 floor high altitude, or get 2 floor high altitudes, inferior steel truss height is identical with the height of main steel truss, set up the I-shaped steel secondary beam of equidistant real abdomen formula with time steel truss among between main steel truss, short across between each I-shaped steel secondary beam of direction and time steel truss apart from being controlled in 3m; High-position conjoined regional floor is used lower chord, upper chord, girder steel, steel secondary beam as support, lays profiled sheet on it, and builds cast-in-place concrete floor.
Above-mentioned two high buildings dual-side across, namely the end of two high buildings arranges Linear shear wall or the L shaped shear wall with newel post.
Above-mentioned main steel truss is comprised of lower chord, upper chord, diagonal web member, vertical web member, the framework of main steel truss upper support floor is comprised of girder steel and steel column, as the stress system that supports floor system, desirable 1 story height of the height of main steel truss, inferior steel truss, or be 2 story heights, diagonal web member arrangement form in main steel truss is unidirectional setting, or is the right-angled intersection setting; The section form of diagonal web member is I-shaped or box-shaped.
Above-mentioned and lower chord, upper chord, to be positioned at the high building floor place adjacent edge that is positioned on same axis corresponding to main steel truss top disjunctor floor girder steel be girder with rolled steel section en cased in concrete across section forms of beam, in the high building scope, all the other Vierendeel girders are reinforced concrete beam, typical bean column node is that a direction is taked the Vierendeel girder wide with post, Vierendeel girder top, bottom are positioned at the vertical muscle in middle part and pierced at built-in steel pipe walls side opening, in every stringer, vertical muscle punches and passes 2 in steel pipe walls at least, and the vertical muscle horizontal buckling in beam bight is walked around steel pipe and is anchored in concrete column; The reinforced concrete beam limit of another direction flushes with the post limit, and in reinforced concrete beam, vertical muscle is anchored in the frame column concrete in the steel pipe outside.
The shear wall of above-mentioned built-in single steel pipe newel post only arranges supporting main steel truss position, disjunctor zone, the lower chord of main steel truss, upper chord, the equal corresponding shear wall that is positioned on same axis that extends into of side supports that is positioned at main steel truss top disjunctor floor girder steel, arrange the dark beam of steel reinforced concrete in the shear wall of corresponding floor position.
The concrete filled steel tube coupled column of above-mentioned built-in pair of steel pipe only arranges in the position of supporting the main steel truss in disjunctor zone, at the disjunctor floor, the girder steel of the lower chord of main steel truss, upper chord, top disjunctor floor all is connected with the concrete filled steel tube coupled column of built-in pair of steel pipe, at the high building floor place adjacent with disjunctor, and the side bar perpendicular to main steel truss direction is girder with rolled steel section en cased in concrete, be connected with the steel pipe by high building one side in the concrete filled steel tube coupled column of built-in pair of steel pipe, beam column connects to be and is rigidly connected, and equidistantly between two steel pipes in frame column small-sized steel pipe is set connects.
Above-mentioned time steel truss has two kinds of forms, the first: a side is supported on shear wall, and opposite side is supported on main steel truss; The second; Both sides all support with main steel truss on; Diagonal web member in inferior steel truss considers that the floor passageway is set need to not arrange diagonal web member being positioned between middle node position, and diagonal web member and vertical web member are arranged in the end bay of inferior steel truss as the case may be, and inferior steel truss side supports is hinged.
The section form of above-mentioned concrete filled steel tube coupled column is set up round steel pipe for medium position in the rectangle reinforced concrete post, the inside and outside strength grade of concrete of steel pipe is identical, or different, steel pipe inner concrete strength grade is not less than the outer strength grade of concrete of steel pipe, the inside and outside concrete of steel pipe is built the same period, or first build the steel pipe inner concrete, the outer concrete of after-pouring steel pipe, specifically look construction technology and determine.
the present invention to two in, the bottom floor is complete independent high building mutually, and the building that has some floors to be connected as a single entity on top provides safe and reliable, economically viable structural concept, namely 1～2 layer of disjunctor bottom, the two-way steel truss is set, two high buildings are held together, and the some disjunctor floors in support top, main steel truss and both sides high building bearing type of attachment are for being rigidly connected, the frame column of supported on both sides master's steel truss and shear wall adopt respectively the concrete filled steel tube coupled column of built-in pair of steel pipe and the newel post of built-in single steel pipe, this construction measure can make the beam column support node reasonable, connect effectively, disjunctor floor area beam column all adopts steel work, main steel truss lower chord, upper chord and upper floor girder steel extend in the end bay at high building floor place, corresponding both sides respectively, the side bar section form at high building respective storey place is girder with rolled steel section en cased in concrete, the method can make the disjunctor floor form effective connection and transition with the corresponding floor of corresponding high building.Set up the I-shaped steel secondary beam of equidistant real abdomen formula with time steel truss among between the main steel truss in disjunctor zone, lay profiled sheet on it, and build cast-in-place concrete floor, according to result of calculation, the double-layer double-direction steel mesh reinforcement is set in floor, along reinforcing bar in main steel truss direction plate extend in the high building of both sides one across, to guarantee effective transmission of slab stress.The present invention compared with prior art, has following benefit:
1, meet the needs of elevation of building moulding and floor function, structural system is safe and reliable, economical rationality;
2, utilize story height that steel truss is set, steel truss place floor coordinates building function demand reasonable Arrangement, can be used as usage space, namely meet the structure stress needs, effectively increase again the effective usable floor area of building, make steel truss place floor be fully used, accomplish function and stressed unification;
3, steel truss lower chord, upper chord, disjunctor upper floor girder steel and concrete filled steel tube coupled column node are reasonable, and power transmission is direct, and constructability is installed;
4, give full play to steel, concrete bi-material mechanical characteristics, steel work is adopted in the disjunctor zone, the frame column of supporting steel truss and shear wall adopt respectively the advocate peace newel post of built-in single steel pipe of the concrete filled steel tube combination of built-in pair of steel pipe, can improve bearing capacity and the ductility of key member, reasonable stress;
5, the disjunctor steel truss adopts two-way setting, and the disjunctor zone primary and secondary steel truss of coordination different spans is stressed is tending towards even, is beneficial to the transmission of load multipath, is beneficial to antidetonation;
6, the high building frame column adopts the concrete filled steel tube coupled column, meets on the one hand the structure reasonability with disjunctor steel structure support seat node; On the other hand, improve post supporting capacity and ductility, reduce column cross-section size, increase the effective usable floor area of floor.
7, profiled sheet is laid in the disjunctor zone on girder steel, builds reinforced concrete floor thereon again, can simplify working procedure, reduces the formwork expense, accelerates speed of application.
The present invention is applicable to high-position conjoined highrise building, and disjunctor 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 high-position conjoined structure in highrise building, is suitable for present demand to elevation of building various shapes and uniqueness, has a extensive future.
Description of drawings
Fig. 1 is the high-position conjoined steel truss of the embodiment of the present invention 1 place layout of floor plan;
Fig. 2 is the concrete filled steel tube coupled column schematic diagram that the embodiment of the present invention 1 includes two steel pipes;
Fig. 3 is the embodiment of the present invention 1 high building concrete filled steel tube coupled column schematic diagram;
Fig. 4 is that the embodiment of the present invention 1 both sides are high-position conjoined part (main steel truss direction) the facade detail drawing that the concrete filled steel tube coupled column supports;
Fig. 5 is that the embodiment of the present invention 1 both sides are high-position conjoined part (main steel truss direction) the facade detail drawing of shear wall;
Fig. 6 is that the embodiment of the present invention 1 both sides all are supported on the inferior steel truss facade detail drawing on main steel truss;
Fig. 7 is that the embodiment of the present invention 1 one sides are supported on main steel truss, and opposite side is supported on the inferior steel truss facade detail drawing on shear wall;
Fig. 8 is the main steel truss lower chord of the embodiment of the present invention 1, diagonal web member and the bean column node schematic diagram that includes the concrete filled steel tube coupled column of two steel pipes.
Fig. 9 is the A-A sectional view in Fig. 8.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.The concrete filled steel tube coupled column high-position conjoined structure that the two-way steel truss is set described in the invention, as shown in Figure 1.the present invention arranges the concrete filled steel tube coupled column high-position conjoined structure system of two-way steel truss, the layout of its structure is L shaped or rectangle, two high buildings in, the bottom floor is divided into two separate high buildings, the some floors in the top of two high buildings are connected as a single entity by main steel truss 1, and time steel truss 2 is being set perpendicular to main steel truss direction, form the two-way steel girder system, the high building frame column adopts concrete filled steel tube coupled column 3, the frame column of supported on both sides master's steel truss adopts the concrete filled steel tube coupled column 4 of built-in pair of steel pipe 8, in the newel post in shear wall 5 bights of supported on both sides master's steel truss, single steel pipe 8 is set, 2 high buildings arrange Linear shear wall or L shaped shear wall 6 with newel post at the both side ends end bay, to improve integrally-built anti-side and torsional rigidity.two interior adjacent edges corresponding with high-position conjoined connected floor of high building are across adopting girder with rolled steel section en cased in concrete 7, all the other Vierendeel girders of high building part are reinforced concrete beam 18, typical bean column node place in high building, a direction adopts the Vierendeel girder 22 wide with post, the vertical muscle of Vierendeel girder 22 pierced at built-in steel pipe 8 wall side openings, in every stringer, vertical muscle punches and passes 2 in steel pipe walls at least, the vertical muscle horizontal buckling in beam bight is walked around steel pipe 8 and is anchored in concrete column 9, the reinforced concrete beam 18 beam limits of another direction are concordant with concrete filled steel tube coupled column 3 sides, the interior vertical muscle of reinforced concrete beam 18 extends into steel pipe 8 outsides in concrete filled steel tube coupled column 3, be anchored in concrete column 9.
Above-mentioned main steel truss 1 side supports has two kinds of situations, the first situation, 1 liang of end bearing of main steel truss is shear wall 5, the lower chord 11 of main steel truss 1, upper chord 12, girder steel 15 side supports are corresponding extends in shear wall 5, and shear wall 5 arranges the dark beam 17 of steel reinforced concrete in relevant position, high building floor place.The second situation, 1 liang of end bearing of main steel truss is established the concrete filled steel tube coupled column 4 of two steel pipes in being, establish in the lower chord 11 of main steel truss 1, upper chord 12, corresponding the extending into of girder steel 15 side supports in the concrete filled steel tube coupled column 4 of two steel pipes, in establish the concrete filled steel tube coupled column 4 of two steel pipes at high building floor place relative set girder with rolled steel section en cased in concrete 7.Above-mentioned connected mode is and is rigidly connected.
Above-mentioned time steel truss 2 is divided into two kinds of situations, the first situation, and inferior steel truss 2 side supports are main steel truss 1; Another kind of situation, inferior steel truss 2 one sides are supported on main steel truss 1, and opposite side is supported on shear wall 5.
Fig. 2 is concrete filled steel tube coupled column 4 schematic diagrames that include two steel pipes 8, this post only arranges in the position of supporting disjunctor floor master steel truss 1, at the disjunctor floor, the girder steel 15 of the lower chord 11 of main steel truss 1, upper chord 12, top disjunctor floor all is connected with this post, perpendicular to main steel truss 1 direction, and the side bar adjacent with the high building floor is girder with rolled steel section en cased in concrete 7, with the steel pipe 8 by high building one side in the concrete filled steel tube coupled column 4 that two steel pipes 8 are set, is connected, and the beam column connection is and is rigidly connected; The setting of two steel pipes 8, on the one hand, avoid the beam of both direction to intersect at same steel pipe 8, reduces the complexity of bean column node; On the other hand, two steel pipes the rigidity that has increased along disjunctor direction concrete filled steel tube coupled column 4 is set, stressed favourable to supporting the disjunctor floor.
Fig. 3 is the schematic diagram of concrete filled steel tube coupled column 4, this column section type is for to set up round steel pipe 8 at the interior medium position of rectangle reinforced concrete post 9, the inside and outside all concretings 9 of steel pipe 8, its objective is the stress of utilizing steel pipe 8 inner concretes to form the three-dimensional constraint, to play the effect that improves the frame column bearing capacity; On the other hand, improving the ductility of frame column, is a kind of cross-section of frame column form that matches that is suitable for the high-position conjoined structure system.The inside and outside strength grade of concrete of steel pipe 8 can be identical, also can be different, and general steel pipe inner concrete strength grade is not less than the outer strength grade of concrete of steel pipe; In addition, the inside and outside concreting of steel pipe 8 can be built simultaneously, also can first build the inner concrete of steel pipe 8, and the outside concrete of after-pouring steel pipe 8 is specifically looked construction technology and determined.
Fig. 4 is that high-position conjoined part (main steel truss direction) the facade detail drawing of concrete filled steel tube coupled column 4 as bearing used in both sides, the bearing that is applicable to main steel truss 1 both sides is the situation of frame column, the post that is characterized in supporting main steel truss 1 is the concrete filled steel tube coupled column 4 of built-in pair of steel pipe 8, wherein, main steel truss 1 is by lower chord 11, upper chord 12, diagonal web member 13, vertical web member 19 forms, depth of truss can be got 1 story height, also can get 2 story heights, the lower chord 11 of main steel truss 1, upper chord 12, girder steel 15 all extends in the end bay of both sides high building respective storey, the section forms of beam of the corresponding same axis end bay of high building position is girder with rolled steel section en cased in concrete 7.The diagonal web member 13 that main steel truss 1 is positioned at an internode can be unidirectional setting, also can be the right-angled intersection setting; Main steel truss 1 diagonal web member 13 can be I-shaped or box-shaped with vertical web member 19 section forms.
Fig. 5 is that high-position conjoined part (main steel truss direction) the facade detail drawing of shear wall 5 as bearing used in both sides, the bearing that is characterized in main steel truss 1 both sides is shear wall 5, wherein, lower chord 11, upper chord 12, girder steel 15 all are connected with the newel post 20 of built-in steel pipe 8 in shear wall 5.The girder steel 15 of the lower chord 11 of main steel truss 1, upper chord 12, top disjunctor floor all extends in high building shear wall 5, in shear wall 5 floor relevant positions, is the dark beam 17 of steel reinforced concrete.
Fig. 6 is that inferior steel truss 2 facade detail drawings as bearing are used on main steel truss 1 in both sides, be characterized in that time steel truss 2 is along the direction setting perpendicular to main steel truss 1, diagonal web member 13 in inferior steel truss 2 considers to arrange floor passageway needs being positioned between middle node position, diagonal web member 13 is not set, and inferior steel truss 2 is arranged symmetrically with along axis, vertical web member 19 arranges in the end bay centre position, diagonal web member 13, the reasonable Arrangement of vertical web member 19 is based on meeting under the prerequisite that structural bearing capacity requires, can take into account the building function demand, with inferior steel truss 2 positions and partition wall position consistency, at utmost avoid because inferior steel truss 2 arranges the impact that causes building function.
Fig. 7 is that a side bearing is main steel truss 1, the opposite side bearing is the inferior steel truss 2 facade detail drawings of shear wall 5, be characterized according to concrete horizontal planning of building form, inferior steel truss 2 one side bearings are shear wall 5, the opposite side bearing is main steel truss 1, and inferior steel truss 2, according to the setting that building function requires, not only meets bearing capacity demand under various operating modes, and can give flexible in conjunction with Practical Project, can at utmost meet the building function demand.
Fig. 8 is concrete filled steel tube coupled column 4 connection details of main steel truss 1 lower chord 11, diagonal web member 13 and built-in pair of steel pipe 8, be characterized in that main steel truss 1 lower chord 11, diagonal web member 13 junctions are any rear concrete filled steel tube coupled column 4 Joint's connection fabrication with playing built-in pair of steel pipe 8 of bearing effect, lower chord 11, diagonal web member 13 are box section, by with two the reliable of steel pipe 8 in post, being connected, the section forms of beam of relevant position, corresponding high building floor place is girder with rolled steel section en cased in concrete 7.The box section upside steel plate of this Nodes lower chord 11, diagonal web member 13 is reserved 2 holes 21, respectively as the channel of concreting and exhaust, make the inner concreting energy of box section closely knit evenly, thereby realize effective collaborative work of concrete and steel member.The small-sized steel pipe 10 of equidistant welding between two steel pipes 8, the globality of the two steel pipes 8 of enhancing.After steel structure member installs, build the concrete in beam column and lower chord 11, diagonal web member 13 box components, make node not only accomplish safe and reliable, power transmission is direct, and the beam column external wrapping concrete, increases fireproof performance and the durability of node.
Fig. 9 is the A-A sectional view in Fig. 8, be characterized in reflecting each member layout relation in connection detail, wherein, the girder with rolled steel section en cased in concrete 7 that is connected with concrete filled steel tube coupled column 4 perpendicular to main steel truss 1 direction is connected with the steel pipe 8 near high building one side, can avoid the junction on same steel pipe 8 of both direction steel member too much, cause constructional difficulties.
Fig. 1 is high-position conjoined floor structure layout plan in the 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 3 layers of this project, amount to 2 groups of high buildings on the ground, is divided into A, Building B, and 2 groups of high buildings lay respectively at the diagonal position in place, is antisymmetry and arranges, 2 groups of high building superstructure systems are identical, and every group of high building layout is all L-shaped.1～8 layer is the business podium, 2 groups of high buildings are connected as a single entity, every group of high building forms by 2 independent high buildings more than 8 floor, its number of plies is respectively 23 layers and 27 layers, the main structure body overall height is respectively 82m, 99m, in every group of high building, 2 independent high buildings are connected as a single entity at 18～23 floor, and 2 groups of structural systems all form with high-position conjoined shear force of frame wall construction.Floor height is as follows: 1 layer of 5.1m; 2～3 layers of 4.8m, 4 layers of 5.2m; 5 layers of 4.4m; 6 layers～roofing layer is 3.4m.The building function basement is garage, device rooms and airraid shelter, and podium part floor is building for commercial use, and high building is hotel.Every group of high building is connected as a single entity 2 independent high buildings at top part floor, and elevation of building forms the effect of door font, and the disjunctor floor coordinates hotel to use function, again 2 high buildings is set up contact in traffic, accomplishes the unification of outer facade moulding and built-in function.Due to nearly 6 layers, disjunctor floor, therefore disjunctor part with 2 high buildings for being rigidly connected, structural system must be considered 2 high building co-operation, therefore in high building wall column layout, must consider, utilizing staircase and elevator hoistways that shear wall 5 is set, set up L shaped shear wall 6 in the end bay zone that is positioned at high building, to strengthen integrally-built anti-side and torsional rigidity.Consider the complexity of structural system stress performance, and coordinate high-position conjoined structure requirement, high building cross-section of frame column type selecting is concrete filled steel tube coupled column 3, the end bay frame column that supports the disjunctor floor adopts the concrete filled steel tube coupled column 4 of the two steel pipes of built-in band, and Vierendeel girder adopts reinforced concrete beam 18.The disjunctor floor arranges the two-way steel truss at the bottom (namely 16 layers), and wherein, main steel truss 1 amounts to 4 roads, connects 2 high buildings, respectively has respectively 2 Pin master's steel truss 1 both sides to be supported in respectively on concrete filled steel tube coupled column 3 and shear wall 5.Perpendicular to main steel truss 1,5 passage steel trusss 2 are set, wherein, 3 Pin steel truss 2 both sides all are supported on main steel truss 1, and 2 Pin steel truss 2 one sides are supported in main steel truss 1, and opposite side is supported on shear wall 5.The girder steel 15 of main steel truss 1 lower chord 11, upper chord 12 and disjunctor upper floor all extend in 2 side high buildings one across, the section forms of beam of high building floor relevant position is girder with rolled steel section en cased in concrete 7.The disjunctor floor is in conjunction with the spacing of lower chord 11, upper chord 12, girder steel 15, set up equidistant steel secondary beam 16 with time steel truss 2 amongs between floor position master steel truss 1, short across direction, spacing is controlled in 3m between steel secondary beam 16 and time steel truss 2, the common superstructure support system that forms, profiled sheet is laid on its top, and the concreting floor.Floor bar draws logical the setting according to the calculation requirement double-layer double-direction in disjunctor, and along main steel truss 1 direction, and in plate, vertical muscle extends in the high building end bay of both sides one across, and reliable anchoring.
The present invention has taken into full account the demand of building function and facade moulding,, by the two-way steel truss of main steel truss 1, inferior steel truss 2 is set at Conjoined bottom floor layer height, make structural system form the concrete filled steel tube coupled column high-position conjoined structure that the two-way steel truss is set.Disjunctor part main structure system is adopted steel work, its objective is and take full advantage of the good mechanical property of steel, make the structural key member possess enough supporting capacitys and ductility, and node accomplishes reasonable stress, simple and practical.Be connected girder steel 15 along main steel truss 1 direction lower chord 11, upper chord 12 and reliably be connected with corresponding bearing in disjunctor of the present invention zone with the disjunctor upper floor, end bay Vierendeel girder section form in high building floor relevant position is girder with rolled steel section en cased in concrete 7, guarantees reliability and globality that the disjunctor part is connected with the both sides high building.The frame column that supports the disjunctor floor is the concrete filled steel tube coupled column 4 of built-in pair of steel pipe, shear wall 5 bights of supporting the disjunctor floor are the newel post of built-in single steel pipe 8, taking into account under support disjunctor regions carry power requirement prerequisite, realize rationally being connected with the node between main steel truss 1 lower chord 11, upper chord 12 and floor girder steel 15, be beneficial to transition and the conversion of steel member to girder with rolled steel section en cased in concrete 7 and reinforced concrete beam 18.In the present invention, the high building frame column all adopts concrete filled steel tube coupled column 3, under the rational prerequisite of joint structure between cooperation and main steel truss 1, can utilize the higher characteristics of its bearing capacity, suitably reduces column cross-section size, increases the building usable floor area.The present invention be applicable to 2 high buildings in, the bottom floor is independent separately, and the highrise building that has more floor (at least 4 layers) to be connected as a single entity on top, particularly the disjunctor zone is in the different situation of different post net span, the situation that corresponding disjunctor supported on both sides condition also can change according to actual conditions, have larger generality and and practicality.
Example of the present invention exemplifies above-mentioned embodiment; but the variation due to the building function layout; corresponding horizontal planning of building and the high-position conjoined form that arranges all can change; the corresponding construction system also can change flexibly; unless cause that the structural system change exceeds scope of the present invention, otherwise within all should being included in protection scope of the present invention.
Claims (9)
1. concrete filled steel tube coupled column high-position conjoined structure that the two-way steel truss is set, in structural system, the bottom floor is divided into two separate high buildings, the turret structure system adopts the reinforced concrete frame shear wall structure, the some floors in the top of two high buildings are connected as a single entity by main steel truss, and time steel truss is being set perpendicular to main steel truss direction, form the two-way steel girder system, the frame column of two high buildings adopts the concrete filled steel tube coupled column, the frame column of supported on both sides master's steel truss and shear wall adopt respectively the concrete filled steel tube coupled column of built-in pair of steel pipe and the newel post of built-in single steel pipe.
2. the concrete filled steel tube coupled column high-position conjoined structure that the two-way steel truss is set according to claim 1, it is characterized in that above-mentioned main steel truss height gets 1 floor high altitude, or get 2 floor high altitudes, inferior steel truss height is identical with the height of main steel truss, set up the I-shaped steel secondary beam of equidistant real abdomen formula with time steel truss among between main steel truss, short across between each I-shaped steel secondary beam of direction and time steel truss apart from being controlled in 3m; High-position conjoined regional floor is used lower chord, upper chord, girder steel, steel secondary beam as support, lays profiled sheet on it, and builds cast-in-place concrete floor.
3. the concrete filled steel tube coupled column high-position conjoined structure that the two-way steel truss is set according to claim 1, it is characterized in that above-mentioned two high buildings dual-side across, namely the end of two high buildings arranges Linear shear wall or the L shaped shear wall with newel post.
4. the concrete filled steel tube coupled column high-position conjoined structure that the two-way steel truss is set according to claim 1, it is characterized in that above-mentioned main steel truss is comprised of lower chord, upper chord, diagonal web member, vertical web member, the framework of main steel truss upper support floor is comprised of girder steel and steel column, as the stress system that supports floor system, the height of main steel truss, inferior steel truss and floor are with high, or be 2 story heights, diagonal web member arrangement form in main steel truss is unidirectional setting, or is the right-angled intersection setting; The section form of diagonal web member is the I-shaped or box-shaped of real abdomen formula.
5. the concrete filled steel tube coupled column high-position conjoined structure that the two-way steel truss is set according to claim 1, it is characterized in that above-mentioned and lower chord, upper chord, being positioned at the high building adjacent edge that is positioned on same axis corresponding to main steel truss top disjunctor floor girder steel is girder with rolled steel section en cased in concrete across section forms of beam, in the high building scope, all the other Vierendeel girders are reinforced concrete beam, typical bean column node is that a direction is taked the Vierendeel girder wide with post, Vierendeel girder top, bottom is positioned at the vertical muscle in middle part and pierced at built-in steel pipe walls side opening, in every stringer, vertical muscle punches and passes 2 in steel pipe walls at least, the vertical muscle horizontal buckling in beam bight is walked around steel pipe and is anchored in concrete column, the reinforced concrete beam limit of another direction flushes with the post limit, and in reinforced concrete beam, vertical muscle is anchored in the frame column concrete in the steel pipe outside.
6. the concrete filled steel tube coupled column high-position conjoined structure that the two-way steel truss is set according to claim 1, the shear wall that it is characterized in that above-mentioned built-in single steel pipe newel post only arranges supporting main steel truss position, disjunctor zone, the lower chord of main steel truss, upper chord, the equal corresponding shear wall that is positioned on same axis that extends into of side supports that is positioned at main steel truss top disjunctor floor girder steel, arrange the dark beam of steel reinforced concrete in the shear wall of corresponding floor position.
7. the concrete filled steel tube coupled column high-position conjoined structure that the two-way steel truss is set according to claim 1, the concrete filled steel tube coupled column that it is characterized in that above-mentioned built-in pair of steel pipe only arranges in the position of supporting the main steel truss in disjunctor zone, at the disjunctor floor, the lower chord of main steel truss, upper chord, the girder steel of top disjunctor floor all is connected with the concrete filled steel tube coupled column of built-in pair of steel pipe, at the high building floor place adjacent with disjunctor, its side bar perpendicular to main steel truss direction be girder with rolled steel section en cased in concrete with the concrete filled steel tube coupled column that two steel pipes are set in be connected by the steel pipe of high building one side, the beam column connection is and is rigidly connected, equidistantly between two steel pipes in frame column small-sized steel pipe is set connects.
8. the concrete filled steel tube coupled column high-position conjoined structure that the two-way steel truss is set according to claim 1, it is characterized in that above-mentioned steel truss has two kinds of forms, the first: a side is supported on shear wall, and opposite side is supported on main steel truss; The second; Both sides all support with main steel truss on; Diagonal web member in inferior steel truss considers that the floor passageway is set need to not arrange diagonal web member being positioned between middle node position, and diagonal web member and vertical web member are arranged in the end bay of inferior steel truss as the case may be, and inferior steel truss side supports is hinged.
9. the concrete filled steel tube coupled column high-position conjoined structure that the two-way steel truss is set according to claim 1, the section form that it is characterized in that above-mentioned concrete filled steel tube coupled column is set up round steel pipe for medium position in the rectangle reinforced concrete post, the inside and outside strength grade of concrete of steel pipe is identical, or different, steel pipe inner concrete strength grade is not less than the outer strength grade of concrete of steel pipe, the inside and outside concrete of steel pipe is built the same period, or first build the steel pipe inner concrete, the outer concrete of after-pouring steel pipe, specifically look construction technology and determine.
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