JP2013234506A - Flat slab structure building - Google Patents

Flat slab structure building Download PDF

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JP2013234506A
JP2013234506A JP2012108184A JP2012108184A JP2013234506A JP 2013234506 A JP2013234506 A JP 2013234506A JP 2012108184 A JP2012108184 A JP 2012108184A JP 2012108184 A JP2012108184 A JP 2012108184A JP 2013234506 A JP2013234506 A JP 2013234506A
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support plate
column
floor
slab
upper support
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Hideyuki Suzuki
英之 鈴木
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Hazama Ando Corp
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Hazama Ando Corp
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Abstract

PROBLEM TO BE SOLVED: To provide a flat slab structure building which makes a support plate of a flat slab structure with an upper support plate function in an effectively dynamic manner.SOLUTION: A flat slab structure building includes a floor slab 3, columns 5 and 6 for supporting the floor slab 3, and an upper support plate 11 which is provided between a column base portion of the column 6 and the floor slab 3. The thickness and width of the upper support plate 11 are set larger in dimension than a transmission range of a punching shear force from the column 5 on a lower floor, and an end of a support plate reinforcing bar 15 for being vertically and horizontally arranged within the width of the column 6 is anchored in the upper support plate 11 by being extended to the inside of the floor slab 3.

Description

本発明はフラットスラブ構造建物に係り、柱脚部の床スラブ上に支板を設けるようにしたフラットスラブ構造建物に関する。   The present invention relates to a flat slab structure building, and relates to a flat slab structure building in which a support plate is provided on a floor slab of a column base.

柱と床スラブとで構成される従来のフラットスラブ構造では、柱から受ける曲げモーメントと床の自重や積載荷重の組み合わせによって、パンチング破壊が生じ易いため、下階の柱頭部のスラブとの接合部に支板が設けられる。この所定の面積と厚さとを有する支板と床スラブとにより柱頭部から伝わるパンチング耐力が確保される。   In a conventional flat slab structure consisting of columns and floor slabs, punching failure is likely to occur due to the combination of the bending moment received from the columns and the floor's own weight and load capacity. A support plate is provided. The punching strength transmitted from the column head is ensured by the support plate having the predetermined area and thickness and the floor slab.

一方、アンボンドPCケーブルによるプレストレストを導入した床スラブと柱とからなるフラットスラブ構造として、床スラブから延長されたアンボンドPCケーブルの曲線形状を反転させて上側反曲点位置を上階の柱脚部に設けられた支板内に配置したフラットスラブ構造も提案されている(特許文献1,2参照)。   On the other hand, as a flat slab structure consisting of a floor slab and columns with pre-stressed unbonded PC cable, the curved shape of the unbonded PC cable extended from the floor slab is reversed so that the upper inflection point is located on the upper column base. There has also been proposed a flat slab structure arranged in a support plate provided on the slab (see Patent Documents 1 and 2).

特許文献1に開示された逆フラットスラブ構造では、プレストレス緊張力を有効に作用させる目的でこのライジングハンチ(支板)を床の上側に設けている。この支板内に上側反曲点を有するように、アンボンドPCケーブルが配線されているため、ケーブル緊張力が導入された際に、支板内において下向きの圧縮力が直接柱に伝達される。   In the inverted flat slab structure disclosed in Patent Document 1, this rising hunch (support plate) is provided on the upper side of the floor for the purpose of effectively applying the prestress tension. Since the unbonded PC cable is wired so as to have an upper inflection point in the support plate, a downward compression force is directly transmitted to the column in the support plate when the cable tension is introduced.

特許文献2に開示されたフラットスラブ構造は、出願人の提案であるが、このフラットスラブ構造でも、スラブ上の柱脚部に支板を設けることでアンボンドPCケーブルのライズを高く確保して支板の効果を得るとともに、柱間の床スラブの吊り上げ力を高めることも考慮している。   The flat slab structure disclosed in Patent Document 2 is the applicant's proposal, but even in this flat slab structure, a support plate is provided on the column base on the slab to ensure a high rise of the unbonded PC cable. In addition to obtaining the effect of the plate, it is also considered to increase the lifting force of the floor slab between the columns.

特公平5−24294号公報Japanese Patent Publication No. 5-24294 特開平8−209839号公報JP-A-8-209839

ところで、フラットスラブ構造建物は梁型を持たないため、住居空間の有効利用を図る目的で共同住宅に用いることが考えられる。また、共同住宅等では、床スラブの柱間スパンはそれほど大きくないため、工事コストダウンの観点から、特許文献1,2に開示されたようなアンボンドPCケーブルを用いたプレストレスを導入した床スラブを有するフラットスラブ構造とするより、床スラブ、支板ともに鉄筋コンクリートによるフラットスラブ構造の方が好ましい、   By the way, since a flat slab structure building does not have a beam type, it can be considered that it is used in an apartment house for the purpose of effectively utilizing a residential space. Moreover, in apartment houses, etc., the span between pillars of the floor slab is not so large. From the viewpoint of reducing construction costs, floor slabs using pre-stress using unbonded PC cables as disclosed in Patent Documents 1 and 2 are introduced. The flat slab structure made of reinforced concrete is preferable for both the floor slab and the support plate, rather than the flat slab structure having

また、居室等の天井に支板が位置するような設計は、意匠上も好ましくない。このため、支板を床スラブ上の柱脚部に設け、この支板(以下、柱脚部の床スラブ上に設けた支板を、上支板と呼ぶ。)の高さを利用した二重床とすることが考えられる。その場合、二重床の床下空間は、配管、配線スペースとして利用できるというメリットもある。しかし、鉄筋コンクリート造のフラットスラブ構造において、柱脚位置に上支板を設けた場合、下階の柱頭部から床スラブと上支板とに作用する斜め方向の力に釣り合う水平力を負担する抵抗要素がないため、従来の支板を配置したフラットスラブ構造に比べて、パンチング耐力が低下するおそれがある。   In addition, a design in which a support plate is located on the ceiling of a living room or the like is not preferable in terms of design. For this reason, a support plate is provided on the column base on the floor slab, and the height of this support plate (hereinafter, the support plate provided on the floor slab of the column base is referred to as the upper support plate) is used. It is possible to use a heavy bed. In that case, there is also an advantage that the underfloor space of the double floor can be used as piping and wiring space. However, in a reinforced concrete flat slab structure, when an upper support plate is installed at the column base position, the resistance that bears a horizontal force that balances the diagonal force acting on the floor slab and the upper support plate from the column head on the lower floor Since there are no elements, the punching strength may be reduced as compared with a flat slab structure having a conventional support plate.

さらに共同住宅等では、有効な居住空間の確保のために、床壁構造建物が建築されている。この床壁構造の建物は、通常の柱梁構造の建物の床や壁よりも少し厚めの床版と壁版で構成されており、床版と壁版の面外方向の剛性によって水平力に抵抗するようになっている。しかし、柱や梁が無いため建物全体の水平剛性が低い。そこで、壁版の一部で柱を併用する考えがある。また、床壁接合部近傍から降伏ヒンジ発生位置を離すことが好ましいため、補強柱に加え、支板の設置が有効となる。この場合、共同住宅等では、支板を床上に設置して、二重床にする等、専有部分の有効利用を図りたいとの要望がある。現状において、この構造の建物において、上支板を配置した場合の支板の配筋方法やその耐力の算定方法は明確ではない。   Further, in apartment houses and the like, floor wall structures are constructed in order to secure an effective living space. This floor wall structure is composed of a floor slab and a wall slab that are slightly thicker than the floors and walls of a normal column beam structure, and resists horizontal force due to the out-of-plane rigidity of the floor slab and wall slab. It is supposed to be. However, since there are no columns or beams, the horizontal rigidity of the entire building is low. Therefore, there is an idea of using a pillar in part of the wall version. Moreover, since it is preferable to make the yield hinge generation | occurrence | production position away from a floor wall junction part vicinity, installation of a support plate becomes effective in addition to a reinforcement pillar. In this case, in apartment houses, there is a demand for effective use of the exclusive part, such as installing a support plate on the floor and making it a double floor. At present, in the building of this structure, the method of arranging the support plate and the calculation method of the proof strength when the upper support plate is arranged are not clear.

そこで、本発明の目的は上述した従来の技術が有する問題点を解消し、上支板を有するフラットスラブ構造の支板が有効に機能するようにしたフラットスラブ構造建物を提供することにある。   SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a flat slab structure building in which the above-described problems of the prior art are solved and a flat slab structure support plate having an upper support plate functions effectively.

上記目的を達成するために、本発明は床スラブと、該床スラブを支持する柱と、前記柱の柱脚部と前記床スラブ間に設けた上支板とを備えたフラットスラブ構造建物であって、前記上支板の厚さ及び幅を、前記柱の下階からの押し抜きせん断力の伝達範囲より大きくするとともに、上支板内に配筋される支板補強筋端を、前記床スラブ内まで延設して定着させたことを特徴とする。   In order to achieve the above object, the present invention is a flat slab structure building comprising a floor slab, a column that supports the floor slab, and an upper support plate provided between the column base of the column and the floor slab. The thickness and width of the upper support plate is larger than the transmission range of the punching shear force from the lower floor of the column, and the end of the support plate reinforcing bar arranged in the upper support plate is It is characterized by extending into the floor slab and fixing.

前記支板補強筋は、前記柱の幅内で縦横配筋することが好ましい。また、前記上支板の幅内で縦横配筋してもよい。   It is preferable that the support reinforcing bars are arranged vertically and horizontally within the width of the column. Further, vertical and horizontal bars may be arranged within the width of the upper support plate.

他の発明として、床スラブと、該床スラブを支持する壁体とからなる構造主体と、前記壁体の一部に設けられた補強柱と、該補強柱の柱脚部と前記床スラブ間に設けた上支板とを備えたフラットスラブ構造建物であって、前記上支板の厚さ及び幅を、前記補強柱の下階からの押し抜きせん断力の伝達範囲より大きくするとともに、上支板内に配筋される支板補強筋端を、前記床スラブ内まで延設して定着させたことを特徴とする。   As another invention, a structural main body composed of a floor slab and a wall body that supports the floor slab, a reinforcing column provided in a part of the wall body, a column base portion of the reinforcing column, and the floor slab A flat slab structure building having an upper support plate provided on the upper support plate, wherein the thickness and width of the upper support plate are larger than the transmission range of the punching shear force from the lower floor of the reinforcing column, and The support plate reinforcing bar end arranged in the support plate extends into the floor slab and is fixed.

このとき、前記支板補強筋は、前記補強柱の長手方向に沿って前記上支板内に配筋することが好ましい。   At this time, it is preferable that the supporting plate reinforcing bars are arranged in the upper supporting plate along the longitudinal direction of the reinforcing column.

以上のように、本発明によれば、柱梁構造並びに床壁構造からなる建物等において、支板を有するフラットスラブ構造を導入することで、上支板が力学的に有効に機能するとともに、二重床も可能になるため、居住性、設備配置の合理化の向上にも寄与するという効果を奏する。   As described above, according to the present invention, in a building having a column beam structure and a floor wall structure, the upper support plate functions mechanically effectively by introducing a flat slab structure having a support plate, Since double flooring is also possible, there is an effect that it contributes to improvement of comfortability and rationalization of equipment layout.

本発明のフラットスラブ構造建物の上支板位置を示した部分拡大図。The elements on larger scale which showed the upper support plate position of the flat slab structure building of this invention. フラットスラブ構造の配筋状態を示した横断面図、平断面図。The cross-sectional view which showed the bar arrangement state of a flat slab structure, and a plane sectional view. フラットスラブ構造内での力のつり合いを示した模式断面図。The schematic cross section which showed balance of the force in a flat slab structure. フラットスラブ構造位置でのせん断耐力に有効な面積を示した模式断面図。The schematic cross section which showed the effective area for the shear strength in a flat slab structure position. フラットスラブ構造建物の一実施例を示した建物断面図。The building sectional view showing one example of a flat slab structure building. 図5に示した建物におけるフラットスラブ構造での配筋状態を示した拡大断面図。The expanded sectional view which showed the bar arrangement state in the flat slab structure in the building shown in FIG. 図5に示した建物におけるフラットスラブ構造の変形例を示した平面図。The top view which showed the modification of the flat slab structure in the building shown in FIG.

以下、本発明のフラットスラブ構造建物の実施するための形態として、以下の実施例について添付図面を参照して説明する。   Hereinafter, the following examples are described with reference to an accompanying drawing as a form for carrying out a flat slab structure building of the present invention.

図1は、本発明のフラットスラブ構造建物に適用されるフラットスラブ構造10部分を示した概略斜視図である。図2(a)は、図1のIIa-IIa断面線に沿って示した断面図である。図2(b)は、図2(a)の配筋状態を模式的に示した平断面図である。図2(a)に示したように、このフラットスラブ構造の上支板11は、床スラブ3と柱6の柱脚部との間において、床スラブ3上に積層されるように構築される。その際、図2(a),図3に破線Pで示したように、下階の柱5の柱頭部からの押し抜きせん断力(パンチングシア)のラインをカバーする範囲に上支板11の大きさ(厚さ、幅)が決定されている。さらに、この押し抜きせん断力の斜め方向の応力を押さえる目的で支板補強筋15が配筋されている。この支板補強筋15は、図2(a),(b)に示したように、所定の被りを確保して支板幅のほぼ全幅にわたり、略逆U字形状をなし、下端に所定の曲げフック15aを設けた形状からなる。平面配置としては、図2(b)に示したように、柱6(5)と交差する範囲、すなわち柱幅内に所定本数(本実施例では4本)が縦横配筋されている。また、各支板補強筋15は、上下端の折り曲げ位置に配置された、平面視して略□形状の組立筋16によって保持されている。なお、支板補強筋15は、上支板11の幅内で所定本数を均等間隔で配筋しても良い。また、図2(a)には上支板11を支持部として設けられた床12と、その床下空間13とが模式的に示されている。この床下空間13に居室設備のための配管、配線を配置することができる。   FIG. 1 is a schematic perspective view showing a portion of a flat slab structure 10 applied to a flat slab structure building of the present invention. 2A is a cross-sectional view taken along the line IIa-IIa in FIG. FIG. 2B is a plan cross-sectional view schematically showing the bar arrangement state of FIG. As shown in FIG. 2A, the upper support plate 11 of this flat slab structure is constructed so as to be stacked on the floor slab 3 between the floor slab 3 and the column base portion of the column 6. . At that time, as indicated by a broken line P in FIGS. 2A and 3, the upper support plate 11 is within a range covering the line of the punching shear force (punching shear) from the column head of the column 5 on the lower floor. The size (thickness, width) is determined. Further, a support reinforcing bar 15 is arranged for the purpose of suppressing the stress in the oblique direction of the punching shear force. As shown in FIGS. 2 (a) and 2 (b), this support plate reinforcing bar 15 has a substantially inverted U shape over a substantially full width of the support plate with a predetermined covering, and has a predetermined end at the lower end. It consists of the shape which provided the bending hook 15a. As for the planar arrangement, as shown in FIG. 2B, a predetermined number (four in this embodiment) is vertically and horizontally arranged in a range intersecting with the pillar 6 (5), that is, within the pillar width. Each support plate reinforcing bar 15 is held by an assembly bar 16 having a substantially square shape in plan view, which is disposed at the bending positions of the upper and lower ends. Note that a predetermined number of support plate reinforcing bars 15 may be arranged at equal intervals within the width of the upper support plate 11. FIG. 2A schematically shows a floor 12 provided with the upper support plate 11 as a support portion and a space 13 below the floor. Piping and wiring for living room facilities can be arranged in the underfloor space 13.

図3は、下階の柱5の柱頭部からの押し抜きせん断力が床スラブ3と上支板11とに伝達された状態における支板補強筋15による力の釣り合い状態を示している。同図に示したように、床スラブ3と上支板11とを一体化した支板補強筋15を配筋することにより、斜め上方に作用する押し抜きせん断力は、支板補強筋15が抵抗要素として挙動することにより、白抜き矢印で示したように、支板上面の柱方向に向く圧縮力と、床スラブ3方向(下方)に向く押し下げ力とに分散させることができる。この支板補強筋15を設けることにより、上支板11を有するフラットスラブ構造10における押し抜きせん断力に確実に抵抗することができる。   FIG. 3 shows a balance of forces by the support plate reinforcement bars 15 in a state in which the punching shear force from the column head of the column 5 on the lower floor is transmitted to the floor slab 3 and the upper support plate 11. As shown in the figure, by placing a reinforcing plate reinforcement bar 15 in which the floor slab 3 and the upper supporting plate 11 are integrated, the punching shear force acting obliquely upward is By acting as a resistance element, as indicated by the white arrow, it is possible to disperse the compression force toward the column direction on the upper surface of the support plate and the push-down force toward the floor slab 3 (downward). By providing the support plate reinforcing bars 15, it is possible to reliably resist the punching shear force in the flat slab structure 10 having the upper support plate 11.

このときの支板補強筋15の鉄筋量の算出方法について簡単に説明する。支板補強筋15を配筋することにより、上支板11と床スラブ3を一体としたコンクリート部材の全厚さが、押し抜きせん断力、すなわちパンチング耐力に寄与する。そのうち、支板補強筋15の役割は、下階の柱5の柱頭部から床スラブ3へ伝達される応力のうち、上支板11が負担する分を床スラブ3に戻す作用を果たす。よって、支板部分のせん断耐力を鉄筋15の材料強度で除した値が鉄筋の必要断面積となる。   A method of calculating the reinforcing bar amount of the support plate reinforcement 15 at this time will be briefly described. By arranging the support plate reinforcement bars 15, the total thickness of the concrete member in which the upper support plate 11 and the floor slab 3 are integrated contributes to the punching shear force, that is, the punching strength. Among them, the role of the reinforcing reinforcing plate 15 is to return the portion of the stress transmitted from the column head of the column 5 on the lower floor to the floor slab 3 to the floor slab 3 by the upper supporting plate 11. Therefore, a value obtained by dividing the shear strength of the support plate portion by the material strength of the reinforcing bar 15 is a necessary cross-sectional area of the reinforcing bar.

パンチング耐力に有効なコンクリート部分は図4に斜線で示した部分である。その面積は上支板11と床スラブ3の厚さの和に有効幅Beを乗じて求められる。ここで、上支板11の側断面積Ac、パンチング耐力に有効な床スラブ3の面積ASLとする。また、有効幅Beは、柱せいC、(フラットスラブ全せい:(床スラブ+上支板))D,フラットスラブ厚の有効せいd(=D−鉄筋芯かぶり厚)から、設計方針に応じて適宜設定することが好ましい。たとえば、有効せいdを考慮した場合にはBe=C+dとなる。また、フラットスラブ全せいDを用いた場合にはBe=C+Dとすればよい。以上のように設定した有効幅Beとせいコンクリート面積(Ac+ASL)にコンクリートのせん断強度fsを乗じた、fs×(Ac+ASL)がパンチング耐力に有効な面のせん断耐力となる。 The concrete portion effective for the punching strength is the portion shown by hatching in FIG. The area is obtained by multiplying the sum of the thicknesses of the upper support plate 11 and the floor slab 3 by the effective width Be. Here, the side cross-sectional area Ac of the upper support plate 11 and the area A SL of the floor slab 3 effective for punching strength are used. Also, the effective width Be depends on the design policy from the columnar C, (all flat slabs: (floor slab + upper support plate)) D, and flat slab thickness effective d (= D-rebar core cover thickness). It is preferable to set appropriately. For example, when effective d is considered, Be = C + d. Further, when the flat slab total D is used, Be = C + D. Fs × (Ac + A SL ), which is obtained by multiplying the effective width Be set as described above and the concrete area (Ac + A SL ) by the shear strength fs of the concrete, is the shear strength of the surface effective for punching strength.

ところで、上支板11の場合には、上支板11の厚さが負担するせん断力と釣り合う支板補強筋15を配筋する。その必要鉄筋断面積は下式から算出される。
Aw=fs×(Ac)/ft
ここで、Aw:支板補強筋の断面積,fs:コンクリートのせん断強度,Ac=上支板部分のコンクリート有効断面積,ft:支板補強筋の引張強度
なお、コンクリートのせん断強度と支板補強筋の引張強度は、設計の種類に応じてそれぞれの許容応力度、または規格強度等の値を用いることが好ましい。
By the way, in the case of the upper support plate 11, the support plate reinforcement bar 15 which balances the shear force which the thickness of the upper support plate 11 bears is arranged. The necessary rebar cross-sectional area is calculated from the following equation.
Aw = fs * (Ac) / ft
Here, Aw: sectional area of the reinforcing plate reinforcement, fs: shear strength of the concrete, Ac = concrete effective sectional area of the upper supporting plate part, ft: tensile strength of the reinforcing reinforcement of the supporting plate Note that the shear strength of the concrete and the supporting plate As the tensile strength of the reinforcing bar, it is preferable to use a value such as an allowable stress level or a standard strength according to the type of design.

[床壁構造建物に上支板フラットスラブを適用した建物]
図5(a),(b)は、上述した床壁構造建物1において、床スラブ3と壁7とで構成された主構造体に対して補強柱8を追加し、さらに上支板18を配置したフラットスラブ構造を採用した建物の概略骨組構造を示した断面図と平断面図である。図6(a),(b)は、上支板18を設けた床壁接合部の配筋状態を拡大して示した断面図(断面ハッチは省略)である。この床壁構造建物では、地震力等に建物に生じる大変形による降伏ヒンジの発生位置を床壁接合部から離すために補強柱8を併用することが好ましい。このとき、図5(b),図6(b)に示したような、細長形状断面の補強柱8の断面に倣った、平面視して長方形状の上支板18を設け、その内部に上支板18の外形から所定の被りを有する寸法の略□形状の支板補強筋15を配筋する。この支板補強筋15によって、床スラブ3の降伏ヒンジ形成位置を壁7の表面から離れた位置に移動させることができるとともに、フラットスラブ構造部分がパンチング耐力を有するようにできる。
[Building where upper support plate flat slab is applied to floor wall structure building]
5 (a) and 5 (b) show that the reinforcing pillar 8 is added to the main structure composed of the floor slab 3 and the wall 7 in the floor wall structure building 1 described above, and the upper support plate 18 is further provided. It is sectional drawing and the plane sectional view which showed the outline frame structure of the building which employ | adopted the arrange | positioned flat slab structure. FIGS. 6A and 6B are cross-sectional views (cross-sectional hatching omitted) showing the bar arrangement state of the floor wall joint portion provided with the upper support plate 18 in an enlarged manner. In this floor wall structure building, it is preferable to use the reinforcing column 8 together in order to separate the generation position of the yield hinge due to the large deformation generated in the building due to the seismic force from the floor wall joint. At this time, as shown in FIGS. 5 (b) and 6 (b), a rectangular upper support plate 18 is provided in a plan view, following the cross section of the reinforcing column 8 having an elongated cross section. From the outer shape of the upper support plate 18, a substantially square-shaped support plate reinforcing bar 15 having a predetermined covering is laid. With this support plate reinforcing bar 15, the yield hinge forming position of the floor slab 3 can be moved to a position away from the surface of the wall 7, and the flat slab structure portion can have punching strength.

図6(b)に示したように、本実施例の床壁構造建物1の補強柱8は、壁延長方向と直交した方向を長辺とする長方形断面からなる。このため、上支板18の平面形状も柱断面にあわせて長方形に設定されている。支板補強筋15は、この長方形状の長辺方向に沿って配筋され、さらに平面して長方形状をなす組立筋16と、支板補強筋15と縦横に配力筋17が配筋されている。なお、本実施例の支板補強筋15は、図6(a)に示したように、略□形状の閉鎖形状鉄筋を用いたが、図2(a)に示したような下端フック付きの略逆U字形状のスターラップ(肋筋)を用いても良いことは言うまでもない。   As shown in FIG. 6 (b), the reinforcing pillar 8 of the floor wall structure building 1 of the present embodiment has a rectangular cross section having a long side in a direction orthogonal to the wall extending direction. For this reason, the planar shape of the upper support plate 18 is also set to a rectangle in accordance with the column cross section. The support reinforcing bar 15 is arranged along the long side direction of this rectangular shape, and further, the assembly reinforcing bar 16 which is planar and forms a rectangular shape, and the distributing reinforcement 17 is arranged vertically and horizontally with the support reinforcing bar 15. ing. As shown in FIG. 6A, the support reinforcing bar 15 of the present embodiment uses a substantially □ -shaped closed reinforcing bar, but has a lower end hook as shown in FIG. Needless to say, a substantially inverted U-shaped stirrup (girdle) may be used.

図7各図は、隣接する上支板同士をつなげた連結構造19を備えた実施例を示している。このような形状のフラットスラブ構造では、柱位置で上支板部分がパンチング耐力を有するとともに、上支板と上支板以外の部分と床スラブ3とを一体化した部分(連結構造19)が梁として機能することができる。このフラットスラブを有する連結構造19の配置でも二重床が適用されるが、その際、各住戸の専有部分の設備の位置に供給される配管、配線が、二重床の床下空間において連続するように連結構造の配置を決定することが好ましい。   Each figure of FIG. 7 has shown the Example provided with the connection structure 19 which connected the adjacent upper support plates. In the flat slab structure having such a shape, the upper support plate portion has punching strength at the column position, and the upper support plate, the portion other than the upper support plate, and the floor slab 3 are integrated (the connecting structure 19). Can function as a beam. Even in the arrangement of the connecting structure 19 having the flat slab, the double floor is applied. At that time, the piping and wiring supplied to the position of the equipment in the exclusive portion of each dwelling unit are continuous in the underfloor space of the double floor. Thus, it is preferable to determine the arrangement of the connection structure.

なお、本発明は上述した実施例に限定されるものではなく、各請求項に示した範囲内での種々の変更が可能である。すなわち、請求項に示した範囲内で適宜変更した技術的手段を組み合わせて得られる実施形態も、本発明の技術的範囲に含まれる。   In addition, this invention is not limited to the Example mentioned above, A various change within the range shown to each claim is possible. In other words, embodiments obtained by combining technical means appropriately changed within the scope of the claims are also included in the technical scope of the present invention.

1 フラットスラブ構造建物
3 床スラブ
5,6 柱
7 壁
8 補強柱
10 フラットスラブ構造
11,18 上支板
12 床
13 床下空間
15 支板補強筋
16 組立筋
17 配力筋
19 連結構造
DESCRIPTION OF SYMBOLS 1 Flat slab structure building 3 Floor slab 5,6 Column 7 Wall 8 Reinforcement column 10 Flat slab structure 11,18 Upper support plate 12 Floor 13 Underfloor space 15 Support plate reinforcement 16 Assembly reinforcement 17 Power distribution reinforcement 19 Connection structure

Claims (5)

床スラブと、該床スラブを支持する柱と、前記柱の柱脚部と前記床スラブ間に設けた上支板とを備えたフラットスラブ構造建物であって、前記上支板の厚さ及び幅を、前記柱の下階からの押し抜きせん断力の伝達範囲より大きくするとともに、上支板内に配筋される支板補強筋端を、前記床スラブ内まで延設して定着させたことを特徴とするフラットスラブ構造建物。   A flat slab structure building comprising a floor slab, a column supporting the floor slab, and an upper support plate provided between the column base of the column and the floor slab, the thickness of the upper support plate and The width was made larger than the transmission range of the punching shear force from the lower floor of the column, and the end of the support plate reinforcement bar arranged in the upper support plate was extended into the floor slab and fixed. This is a flat slab structure building. 前記支板補強筋は、前記柱の幅内で縦横配筋されたことを特徴とする請求項1に記載のフラットスラブ構造建物。   The flat slab structure building according to claim 1, wherein the support plate reinforcing bars are vertically and horizontally arranged within the width of the column. 前記支板補強筋は、前記上支板の幅内で縦横配筋されたことを特徴とする請求項1に記載のフラットスラブ構造建物。   The flat slab structure building according to claim 1, wherein the support plate reinforcing bars are vertically and horizontally arranged within the width of the upper support plate. 床スラブと、該床スラブを支持する壁体とからなる構造主体と、前記壁体の一部に設けられた補強柱と、該補強柱の柱脚部と前記床スラブ間に設けた上支板とを備えたフラットスラブ構造建物であって、前記上支板の厚さ及び幅を、前記補強柱の下階からの押し抜きせん断力の伝達範囲より大きくするとともに、上支板内に配筋される支板補強筋端を、前記床スラブ内まで延設して定着させたことを特徴とするフラットスラブ構造建物。   A structural main body comprising a floor slab and a wall body that supports the floor slab, a reinforcing column provided in a part of the wall, and an upper support provided between a column base of the reinforcing column and the floor slab The upper slab has a thickness and width larger than the transmission range of the punching shear force from the lower floor of the reinforcing column, and is disposed in the upper slab. A flat slab structure building in which a reinforcing plate end of a reinforcing plate to be reinforced is extended and fixed in the floor slab. 前記支板補強筋は、前記補強柱の長手方向に沿って前記上支板内に配筋されたことを特徴とする請求項4に記載のフラットスラブ構造建物。   The flat slab structure building according to claim 4, wherein the support plate reinforcing bars are arranged in the upper support plate along a longitudinal direction of the reinforcing columns.
JP2012108184A 2012-05-10 2012-05-10 Flat slab structure building Pending JP2013234506A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200132159A (en) * 2019-05-15 2020-11-25 대림산업 주식회사 Slim transfer mat structure and construction method with reverse drop panel

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61126255A (en) * 1984-11-22 1986-06-13 株式会社大林組 Reverse flat slab structure
JPS63127513U (en) * 1987-02-13 1988-08-22
JPH10306614A (en) * 1997-05-08 1998-11-17 Takenaka Komuten Co Ltd Base isolation structure of building employing mega-structure and flat slab

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61126255A (en) * 1984-11-22 1986-06-13 株式会社大林組 Reverse flat slab structure
JPS63127513U (en) * 1987-02-13 1988-08-22
JPH10306614A (en) * 1997-05-08 1998-11-17 Takenaka Komuten Co Ltd Base isolation structure of building employing mega-structure and flat slab

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200132159A (en) * 2019-05-15 2020-11-25 대림산업 주식회사 Slim transfer mat structure and construction method with reverse drop panel
KR102222834B1 (en) * 2019-05-15 2021-03-04 디엘이앤씨 주식회사 Slim transfer mat structure and construction method with reverse drop panel

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