JPH07139038A - Roof structure and construction method therefor - Google Patents
Roof structure and construction method thereforInfo
- Publication number
- JPH07139038A JPH07139038A JP30964493A JP30964493A JPH07139038A JP H07139038 A JPH07139038 A JP H07139038A JP 30964493 A JP30964493 A JP 30964493A JP 30964493 A JP30964493 A JP 30964493A JP H07139038 A JPH07139038 A JP H07139038A
- Authority
- JP
- Japan
- Prior art keywords
- roof
- roof slab
- cable
- support
- supporting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
Description
【０００１】この発明は、野球場や運動場等の大規模施
設における屋根構造物及びその施工法に関する。[0001] The present invention relates to a roof structure in a large-scale facility such as a baseball field or a playground, and a construction method thereof.
【０００２】[0002]
【従来の技術】従来、全天候型の競技場におけるドーム
型屋根構造物には、トラス構造に形成したものや、一般
鉄骨で形成したものが数多く建設されている。これらの
構造物は一般に風や積雪等の活荷重と構造物自体の死荷
重によって規模が決まり、大径間構造物ともなれば、構
造部材が大型化して、屋根全体の重量も大きくなり、ま
た建設費が高騰する。2. Description of the Related Art Conventionally, many dome-shaped roof structures in all-weather stadiums have been constructed in a truss structure or a general steel frame. Generally, the size of these structures is determined by the live load such as wind and snow and the dead load of the structure itself.If it becomes a large span structure, the structural member becomes large and the weight of the entire roof becomes large. Construction costs rise.
【０００３】一般にトラス構造が一般鉄骨に比べて５〜
１０％軽量化されることは知られていることであるが、
近年は更に軽量化を狙った屋根構造物が開発されてい
る。その一例は、特公平３−６７１７２号公報に記載さ
れているようないわゆる張弦梁構造であり、現在広く使
用されている。Generally, the truss structure is 5 to 5 compared with general steel frame.
It is known to be 10% lighter,
In recent years, roof structures aimed at further weight reduction have been developed. One example thereof is a so-called string beam structure as described in Japanese Patent Publication No. 3-67172, which is widely used at present.
【０００４】この屋根構造物では、構造物の四周を囲繞
する側壁上に立設されて対向する一対の支柱の上端間
に、格子状にした複数のメインケーブルを架設し、該メ
インケーブルに沿って各交点に上端が固着された垂直材
を吊設し、該垂直材の下端間と、最外方の垂直材の下端
と前記支柱の下端との間を下弦材を介して結合してい
る。また、前記メインケーブルに沿って前記垂直材間に
サブケーブルを鋸歯状に張架し、該サブケーブルの中央
部を前記垂直材に固着し、両端を前記支柱の上端を介し
て前記側壁に固定している。そして、前記サブケーブル
を両端側から引張って前記メインケーブルを上方に膨出
させることで、メインケーブル及びサブケーブルにはテ
ンションが導入されている。In this roof structure, a plurality of grid-shaped main cables are erected between the upper ends of a pair of pillars which are erected on the side walls surrounding the four circumferences of the structure and are opposed to each other, and along the main cables. A vertical member having a fixed upper end is suspended at each intersection, and the lower end of the vertical member and the lower end of the outermost vertical member and the lower end of the column are connected via a lower chord member. . A sub cable is stretched in a sawtooth shape between the vertical members along the main cable, the central portion of the sub cable is fixed to the vertical member, and both ends are fixed to the side wall through the upper ends of the columns. is doing. Then, tension is introduced into the main cable and the sub cable by pulling the sub cable from both ends and bulging the main cable upward.
【０００５】また、前記屋根構造物の他の例は特開平５
−１４８９０１号公報に記載されているような架構であ
る。この屋根構造物では、構造物の外周部に立設した複
数の外周柱に主架構の外周縁部を支持し、該主架構の下
部に補強架構を設けている。前記主架構は複数の鉄骨材
を平面トラス状に接合して構築され、また前記補強架構
は複数の補強材を立体トラス状に接合して構築され、該
補強材は前記主架構の鉄骨材に接合されている。この補
強材はケーブル又はパイプで構成されている。Another example of the roof structure is disclosed in Japanese Patent Laid-Open No.
The frame is as described in Japanese Patent Publication No. 148901. In this roof structure, the outer peripheral edge of the main frame is supported by a plurality of outer peripheral columns that are provided upright on the outer periphery of the structure, and a reinforcing frame is provided below the main frame. The main frame is constructed by joining a plurality of steel aggregates in a plane truss shape, and the reinforcing frame is constructed by joining a plurality of reinforcing members in a three-dimensional truss form, and the reinforcing material is an iron aggregate of the main frame. It is joined. This reinforcing material is composed of a cable or a pipe.
【０００６】[0006]
【この考案が解決しようとする課題】しかしながら、特
公平３−６７１７２号公報記載の屋根構造物では、メイ
ンケーブル及びサブケーブルはプリテンションの導入に
かかわらず使用中伸びることが避けられず、サブケーブ
ルの再緊張作業が必要となる。また、施工時、サブケー
ブルの張設の仕方から、メインケーブルをバランス良く
上方に膨出させるために張力管理を含む細心の注意をも
ってテンションの導入を行うことが必要となり、その手
順や、張力の導入量及び導入方法を間違えた場合には大
事故につながる危険があり、かかる安全施工上の点から
屋根構造物を大型化することがなかなか困難であった。However, in the roof structure disclosed in Japanese Examined Patent Publication No. 3-67172, the main cable and the sub-cable are inevitably stretched during use regardless of the introduction of pretension. Re-tensioning work is required. Also, at the time of construction, it is necessary to introduce tension with meticulous attention, including tension control, in order to bulge the main cable upward in a well-balanced manner, depending on how the sub-cable is stretched. If the introduction amount and the introduction method are wrong, there is a risk of causing a serious accident, and it is difficult to increase the size of the roof structure from the viewpoint of the safety construction.
【０００７】また、特開平５−１４８９０１号公報記載
の屋根構造物では、ケーブル又はパイプによる補強架構
により主架構の耐座屈力を高める構造としてあるが、前
述したように大径間構造物となれば主架構の鉄骨材が大
型化し、屋根全体の重量も大きくなり、該屋根の外周部
を支持する外周柱も強固なものにしなければならず、ま
た補強架構のメンバーの設定やその取付作業も繁雑とな
り、従って、施工が容易でなく、また建設費が高価とな
る。Further, in the roof structure disclosed in Japanese Patent Laid-Open No. 148901/1993, a structure for enhancing the buckling resistance of the main frame is provided by a reinforcing frame with a cable or a pipe. If so, the steel frame of the main frame will become large, the weight of the entire roof will increase, and the outer peripheral columns that support the outer peripheral portion of the roof must also be solid, and the setting of members of the reinforcing frame and its mounting work. However, the construction is not easy and the construction cost is high.
【０００８】この発明は上記課題を解決するためになし
たもので、その第１の目的とするところは、大型化で
き、しかも構造部材の小型・軽量化を図ることができる
屋根構造物を提供することにある。The present invention has been made to solve the above problems. A first object of the present invention is to provide a roof structure which can be increased in size and can be reduced in size and weight of structural members. To do.
【０００９】また、この発明の第２の目的とするところ
は、在来の技術をもって容易かつ安全に施工できる屋根
構造物の施工法を提供することにある。A second object of the present invention is to provide a method for constructing a roof structure which can be easily and safely constructed by using conventional techniques.
【００１０】[0010]
【課題を解決するための手段】上記第１の目的を達成す
るために、この発明に係る屋根構造物は、請求項１に記
載された通り、多角形からなる屋根版の外郭部に複数箇
所の支持部を設け、該支持部を、前記屋根版を支持する
支持部材上に移動可能に支持すると共に、前記屋根版の
外郭部より内方の下部に、梁で構成した多角形の内郭部
構造体を形成し、該内郭部構造体の各コーナー部から前
記屋根版の支持部へケーブルを介して結合し、該ケーブ
ルの緊張で前記支持部を前記屋根版の内方方向に移動さ
せた状態で、該支持部を前記支持部材上に固定してある
ものである。In order to achieve the first object, the roof structure according to the present invention is, as described in claim 1, a plurality of locations on the outer portion of a polygonal roof slab. Is provided on the support member that supports the roof slab so that the support portion is movable, and the inner portion of the roof slab has a polygonal inner contour formed below the outer contour of the roof slab. Forming a partial structure, connecting from each corner of the inner shell structure to a supporting portion of the roof slab via a cable, and moving the supporting portion inward of the roof slab due to tension of the cable. In this state, the supporting portion is fixed on the supporting member.
【００１１】また、同一の目的を達成するために、この
発明に係る屋根構造物は、請求項２に記載された通り、
多角形からなる屋根版の外郭部に複数箇所の支持部を設
け、該支持部を、前記屋根版を支持する支持部材上に移
動可能に支持すると共に、前記屋根版の外郭部より内方
の下部に、梁で構成した多角形の内郭部構造体を形成
し、該内郭部構造体の各コーナー部から二方向に前記屋
根版の支持部へケーブルを介して結合し、該ケーブルの
緊張で前記支持部を前記屋根版の内方方向に移動させた
状態で、該支持部を前記支持部材上に固定してあるもの
である。In order to achieve the same object, the roof structure according to the present invention has the following features.
A plurality of support portions are provided on the outer portion of the roof slab made of a polygon, and the support portion is movably supported on a supporting member that supports the roof slab, and the inner portion of the outer portion of the roof slab is In the lower part, a polygonal inner shell structure composed of beams is formed, and each corner portion of the inner shell structure is bidirectionally connected to a supporting portion of the roof slab via a cable, The support is fixed on the support member in a state where the support is moved inward of the roof slab by tension.
【００１２】更に、上記第２の目的を達成するために、
この発明に係る屋根構造物の施工法は、請求項３に記載
された通り、多角形からなる屋根版の外郭部に複数箇所
の支持部を設け、該支持部を、前記屋根版を支持する支
持部材上に移動可能に支持すると共に、前記屋根版の外
郭部より内方の下部に、梁で構成した多角形の内郭部構
造体を形成し、該内郭部構造体の各コーナー部から前記
屋根版の支持部へケーブルを介して結合した後、該ケー
ブルを緊張して、前記支持部を前記屋根版の内方方向に
移動させ、しかる後、該支持部を前記支持部材上に固定
するものである。Further, in order to achieve the second object,
In the method for constructing a roof structure according to the present invention, as described in claim 3, a plurality of support portions are provided on an outer portion of a polygonal roof slab, and the support portions support the roof slab. In addition to movably supporting on a support member, a polygonal inner shell structure formed of beams is formed at a lower part inside the outer shell of the roof slab, and each corner portion of the inner shell structure is formed. To the support of the roof slab via a cable, the cable is tensioned to move the support inwardly of the roof slab, and then the support is placed on the support member. It is something that is fixed.
【００１３】[0013]
【作用】上記請求項１，請求項２記載の構成によれば、
多角形からなる屋根版の外郭部に設けた複数箇所の支持
部を支持部材上に移動可能に支持すると共に、前記屋根
版の外郭部より内方の下部に、梁で構成した多角形の内
郭部構造体を形成し、該内郭部構造体の各コーナー部か
ら一方向又は二方向に前記屋根版の支持部へケーブルを
介して結合した後、該ケーブルを緊張して、前記支持部
を前記屋根版の内方方向に移動させ、しかる後、該支持
部を前記支持部材上に固定して、屋根構造物を構築す
る。According to the constitutions of claims 1 and 2,
A plurality of supporting portions provided on the outer portion of the roof slab made of a polygon are movably supported on a supporting member, and the inside of the outer portion of the roof slab has a polygonal shape composed of beams. A shell structure is formed, and after each corner portion of the inner shell structure is connected to the support portion of the roof slab via a cable in one direction or two directions, the cable is tensioned to support the support portion. Is moved inward of the roof slab, and then the supporting portion is fixed on the supporting member to construct a roof structure.
【００１４】この屋根構造物では、上記支持部の移動で
屋根版が支持部材上に立て起されて上方に凸状に変形
し、屋根版の外郭部に支持された前記内郭部構造体には
引張力が予め導入され、また前記屋根版の外郭部には圧
縮力が予め導入される。In this roof structure, the roof slab is erected on the support member by the movement of the support portion and is deformed into a convex shape upward, so that the inner shell structure supported by the outer shell of the roof slab is formed. The tensile force is introduced in advance, and the compressive force is introduced in advance in the outer portion of the roof slab.
【００１５】使用状態において、前記屋根版の外郭部に
支持された前記内郭部構造体には圧縮力が働くが、予め
導入してある引張力に相殺され、該支持部が負担する荷
重は小さくなる。また、前記屋根版の外郭部には引張力
が働くが、予め導入してある圧縮力に相殺されること
で、該外郭部が負担する荷重は小さくなる。In use, a compressive force acts on the inner shell structure supported by the outer shell of the roof slab, but is offset by the pre-introduced tensile force, and the load carried by the support portion is Get smaller. Further, a tensile force acts on the outer portion of the roof slab, but by being offset by the compression force introduced in advance, the load that the outer portion bears becomes smaller.
【００１６】また、上記請求項３記載の構成によれば、
屋根版の外郭部に配置したケーブルを在来技術による緊
張作業によりプレストレスを導入して、屋根構造物を容
易に施工できる。Further, according to the structure of claim 3,
Prestressing can be introduced by tensioning the cables placed on the outer slab of the roof slab using conventional technology to easily construct a roof structure.
【００１７】[0017]
【実施例】以下、この発明の実施例を図面に基づいて説
明する。Embodiments of the present invention will be described below with reference to the drawings.
【００１８】図１はこの発明の一実施例になる屋根構造
物を示す平面図、図２は図１のＰ−Ｐ線に沿う断面図、
図３は同屋根構造物を正面から視た軸組図、図４は同屋
根構造物の斜視図、図５（１），（２），（３）はケー
ブル緊張定着部構造の異なる例を示す正面図、図６は図
１の部分拡大図、図７，図８は屋根版の他の構造例を示
す図６に対応した平面図である。FIG. 1 is a plan view showing a roof structure according to an embodiment of the present invention, and FIG. 2 is a sectional view taken along the line P--P in FIG.
FIG. 3 is a frame view of the roof structure viewed from the front, FIG. 4 is a perspective view of the roof structure, and FIGS. 5 (1), (2), and (3) are different examples of the cable tension fixing portion structure. FIG. 6 is a partially enlarged view of FIG. 1, and FIGS. 7 and 8 are plan views corresponding to FIG. 6 showing another structural example of the roof slab.
【００１９】これらの図において１は多角形の屋根版
（実施例では平面視矩形）で、該屋根版１は球継手２に
図示しないボルト状のコネクタを介して杆体３の端部を
連結して三角錐体又は四角錐体を形成し、これを基本ユ
ニットとして複数連続的に結合した立体トラスに構成さ
れている。１1 は上弦材、１2 は下弦材、１3 は腹材で
ある。In these drawings, reference numeral 1 denotes a polygonal roof slab (rectangular in plan view in the embodiment). The roof slab 1 is connected to a ball joint 2 at an end of a rod 3 via a bolt-shaped connector (not shown). To form a triangular pyramid or a quadrangular pyramid, and a plurality of them are continuously connected as a basic unit to form a space truss. 1 1 upper chord member, 1 2 the lower chord member, 1 3 is a web members.
【００２０】この屋根版１の外郭部４には、該屋根版１
の下弦材１2 を構成する球継手２の下部と一体に複数箇
所の支持部５Ａが設けられていて、該支持部５Ａの下部
には、屋根版１の内方方向に沿ったルーズホール５ａ1
を有するプレート部５ａ2 が形成されている。In the outer shell 4 of the roof slab 1, the roof slab 1 is
A plurality of supporting portions 5A are provided integrally with the lower portion of the ball joint 2 that constitutes the lower chord member 1 2. The lower portion of the supporting portion 5A has a loose hole 5a extending inwardly of the roof slab 1. 1
The plate portion 5a 2 having the is formed.
【００２１】一方、グランド６を囲む観客収容用スタン
ドを構成する支持構造体７の躯体上には、前記屋根版１
を支持するプレート状の支持部材５Ｂが固定されてい
て、該支持部材５Ｂの上部には、前記支持部５Ａに設け
たプレート部５ｂのルーズホール５ａ1 に係合するアン
カーボルト５ｂが突設されている。On the other hand, on the skeleton of the support structure 7 which constitutes the spectator housing stand surrounding the ground 6, the roof slab 1 is placed.
Have been plate-like support member 5B is fixed to supporting, said the upper part of the support member 5B, the anchor bolts 5b to be engaged with the loose hole 5a 1 of the plate portion 5b provided on the supporting portion 5A is protruded ing.
【００２２】そして、このアンカーボルト５ｂに螺合し
た図示しないナットにより前記支持部５Ａは前記支持部
材５Ｂに締結固定されて、該支持部材５Ｂ上に前記屋根
版１の内方方向に移動可能に支持されている。The supporting portion 5A is fastened and fixed to the supporting member 5B by a nut (not shown) screwed to the anchor bolt 5b so that the supporting portion 5A can move inward of the roof slab 1 on the supporting member 5B. It is supported.
【００２３】前記屋根版１の外郭部４より内方の下部に
は、梁８ａで構成した多角形の内郭部構造体８（実施例
では矩形）が垂設形成されている。この内郭部構造体８
の下部は屋根版１の下部に横補剛材９を介して連結され
て、内郭部構造体８の倒止めが行われている。尚、後述
する各ケーブル１０の同時緊張の場合には、前記横補剛
材９はなくても良い。A polygonal inner shell structure 8 (rectangular in the embodiment) formed by beams 8a is vertically formed below the outer shell 4 of the roof slab 1. This inner shell structure 8
Is connected to the lower part of the roof slab 1 via a lateral stiffening member 9 to prevent the inner shell structure 8 from falling down. In the case of simultaneous tension of each cable 10 described later, the lateral stiffening member 9 may be omitted.
【００２４】前記梁８ａは、図２に示すように、屋根版
１の下弦材１2 に補助材８1 ，８2を介して補助材８3
を接合した構成にしている。前記内郭部構造体８は、前
記梁８ａを多角形に形成し、該梁８ａにおける補助材８
1 ，８2 の下端を、前記多角形の頂点を構成する前記補
助材８3 の部位に結合してリング状に構成されている。
尚、屋根版１の下弦材１2 に補助材８1 ，８2 を介して
補助材８3 を結合して内郭部構造体８を固定している
が、何等これに限定されないことは言うまでもない。ま
た、補助材８1 ，８2 の下端をリング状に連結する補助
材８3 はケーブルであっても鉄骨部材であっても良い。As shown in FIG. 2, the beam 8a includes an auxiliary member 8 3 on the lower chord member 1 2 of the roof slab 1 through auxiliary members 8 1 and 8 2.
Are joined together. In the inner shell structure 8, the beam 8a is formed in a polygonal shape, and the auxiliary member 8 in the beam 8a is formed.
The lower ends of 1 and 8 2 are connected to the portion of the auxiliary member 8 3 forming the apex of the polygon to form a ring shape.
In addition, although the auxiliary member 8 3 is connected to the lower chord member 1 2 of the roof slab 1 through the auxiliary members 8 1 and 8 2 to fix the inner shell structure 8, it is needless to say that the structure is not limited thereto. Yes. Further, the auxiliary material 8 3 connecting the lower ends of the auxiliary materials 8 1 and 8 2 in a ring shape may be a cable or a steel frame member.
【００２５】前記内郭部構造体８の各コーナー部（実施
例では４箇所）は、該コーナー部から二方向に延在する
ケーブル１０を介して前記屋根版１の支持部５Ａに結合
されている。Each corner portion (four places in the embodiment) of the inner shell structure 8 is connected to the support portion 5A of the roof slab 1 through the cable 10 extending in two directions from the corner portion. There is.
【００２６】前記支持部５Ａには、図５（１），（２）
に示すように、図外の貫通穴（シースでも良い）が形成
され、該貫通穴には前記ケーブル１０の他端部が挿通さ
れている。このケーブル１０の他端部には、前記貫通穴
を貫通する図示しないねじ棒が固定されていて、該ねじ
棒の先端部にはナット１１が螺合され、該ナット１１と
前記支持部５Ａとの間には図示しない座金が介装されて
いる。尚、図５（３）に示すように、ケーブル１０の他
端部を球継手２に固定して間接的に支持部５Ａに固定し
ても同効であるから、このような場合も、この発明の範
囲に含まれる。The supporting portion 5A has a structure shown in FIGS. 5 (1) and 5 (2).
As shown in FIG. 3, a through hole (not shown) (may be a sheath) is formed, and the other end of the cable 10 is inserted into the through hole. A screw rod (not shown) penetrating the through hole is fixed to the other end of the cable 10, and a nut 11 is screwed to the tip end of the screw rod to connect the nut 11 and the support portion 5A. A washer (not shown) is interposed between them. Note that, as shown in FIG. 5C, fixing the other end of the cable 10 to the ball joint 2 and indirectly fixing it to the support portion 5A has the same effect. It is included in the scope of the invention.
【００２７】前記支持部５Ａはこれを支点とした前記ケ
ーブル１０の緊張で屋根版１の内方方向に移動されてい
て、この状態で前記ケーブル１０の他端部が前記ナット
１１により支持部５Ａに定着され、かつ、該支持部５Ａ
が前記支持部材５Ｂ上に例えば溶接やボルト等で固定さ
れている。これによって、前記屋根版１は支持部材５Ｂ
上に立て起されている。The support portion 5A is moved inwardly of the roof slab 1 by the tension of the cable 10 with this as a fulcrum, and in this state, the other end portion of the cable 10 is supported by the nut 11 to support portion 5A. Fixed to the supporting portion 5A
Are fixed on the support member 5B by, for example, welding or bolts. As a result, the roof slab 1 is supported by the support member 5B.
Standed up.
【００２８】上記構成によれば、多角形からなる屋根版
１の外郭部４に設けた複数箇所の支持部５Ａを支持部材
５Ｂ上に移動可能に支持すると共に、前記屋根版１の外
郭部４より内方の下部に、梁８ａで構成した多角形の内
郭部構造体８を形成し、該内郭部構造体８の各コーナー
部から二方向に前記屋根版１の支持部５Ａへケーブル１
０を介して結合した後、在来の緊張技術により全てのケ
ーブル１０を図４に矢印で示すように緊張して、前記支
持部５Ａを前記屋根版１の内方方向に移動させ、しかる
後、該支持部５Ａを前記支持部材５Ｂ上に固定して、屋
根構造物を構築する。According to the above construction, a plurality of support portions 5A provided on the outer shell portion 4 of the polygonal roof slab 1 are movably supported on the support member 5B and the outer shell portion 4 of the roof slab 1 is movably supported. A polygonal inner frame structure 8 composed of beams 8a is formed in the lower part of the inner side, and each corner of the inner frame structure 8 is bidirectionally connected to a supporting portion 5A of the roof slab 1 by a cable. 1
After connecting through 0, all the cables 10 are tensioned as shown by the arrows in FIG. 4 by the conventional tensioning technique to move the supporting portion 5A inward of the roof slab 1, and thereafter. Then, the supporting portion 5A is fixed on the supporting member 5B to construct a roof structure.
【００２９】この屋根構造物では、上記支持部５Ａの移
動で屋根版１が支持部材５Ｂ上に立て起されて上方に凸
状に変形し、屋根版１の外郭部４に支持された前記内郭
部構造体８には引張力が予め導入され、また前記屋根版
１の外郭部４には圧縮力が予め導入されている。In this roof structure, the roof slab 1 is erected on the support member 5B by the movement of the support portion 5A and is deformed to a convex shape upward, and is supported by the outer shell portion 4 of the roof slab 1. A tensile force is previously introduced into the shell structure 8, and a compressive force is previously introduced into the outer shell 4 of the roof slab 1.
【００３０】使用状態において、前記屋根版１の外郭部
４に支持された前記内郭部構造体８には圧縮力が働く
が、予め導入してある引張力に相殺され、該支持部が負
担する荷重は小さくなる。また、前記屋根版１の外郭部
４には引張力が働くが、予め導入してある圧縮力に相殺
されることで、該外郭部４が負担する荷重は小さくな
る。In use, a compressive force acts on the inner hull structure 8 supported by the outer hull 4 of the roof slab 1, but this is offset by the pre-introduced tensile force and the supporting part bears a load. The applied load becomes smaller. Further, a tensile force acts on the outer shell portion 4 of the roof slab 1, but the load that the outer shell portion 4 bears is reduced by being offset by the compression force introduced in advance.
【００３１】上記屋根構造物の構築施工は、屋根版１の
外郭部４に配置したケーブル１０を在来技術による緊張
作業によりプレストレスを導入することで、容易かつ安
全に行える。The construction and construction of the roof structure can be easily and safely carried out by introducing prestress to the cable 10 arranged in the outer shell 4 of the roof slab 1 by tensioning work by the conventional technique.
【００３２】尚、この実施例では、支持金物の下部を構
成する支持部材５Ｂを支持構造体７の躯体上に固定した
が、地上等の基礎に固定しても良い。In this embodiment, the supporting member 5B constituting the lower part of the supporting metal object is fixed on the body of the supporting structure 7, but it may be fixed on the foundation such as the ground.
【００３３】また、図６に示すように、球継手２に図示
しないボルト状のコネクタを介して杆体３の端部を連結
して三角錐体又は四角錐体を形成し、これを基本ユニッ
トとして複数連続的に結合した立体トラスに屋根版１を
構成したが、図７に示す屋根版１２のように、上弦材と
下弦材を腹材を介して連結したトラス枠材１３を複数組
み合わせた立体トラスに構成しても良い。また、図８に
示す屋根版１４のように、大梁１５間を小梁１６で連結
し、所定箇所にブレース材１７を設けた一般鉄骨に構成
しても良い。Further, as shown in FIG. 6, the end portion of the rod 3 is connected to the ball joint 2 via a bolt-shaped connector (not shown) to form a triangular pyramid or a quadrangular pyramid, which is used as a basic unit. The roof slab 1 is configured by a plurality of three-dimensional trusses that are continuously connected. However, like the roof slab 12 shown in FIG. It may be configured as a truss. Alternatively, as in the roof slab 14 shown in FIG. 8, the large beams 15 may be connected to each other by the small beams 16 and a brace material 17 may be provided at a predetermined position to form a general steel frame.
【００３４】更に、矩形の屋根版１の下部に矩形の内郭
部構造体８を設けて、ケーブル１０を二方向（桁行方向
及びスパン方向）に緊張して、屋根版１を二方向に湾曲
させたが、一方向にのみ湾曲させても良い。Further, a rectangular inner shell structure 8 is provided below the rectangular roof slab 1, and the cable 10 is tensioned in two directions (column direction and span direction) to bend the roof slab 1 in two directions. However, it may be curved only in one direction.
【００３５】また、図９及び図１０に示すように、６角
形の屋根版１８の下部に三角形の内郭部構造体１９を設
け、或いは図１１及び図１２に示すように、８角形の屋
根版２０の下部に矩形の内郭部構造体２１を設ける等、
屋根版の多角形状は何等限定されず、ほぼ円形であって
も良く、内郭部構造体の形状も前記屋根版に適宜対応し
たものとすれば良い。Further, as shown in FIGS. 9 and 10, a hexagonal roof slab 18 is provided with a triangular inner shell structure 19 in the lower part, or as shown in FIGS. 11 and 12, an octagonal roof. A rectangular inner structure 21 is provided at the bottom of the plate 20,
The polygonal shape of the roof slab is not limited in any way, and may be substantially circular, and the shape of the inner shell structure may appropriately correspond to the roof slab.
【００３６】更に、図１３に示すように、内郭部構造体
８のコーナー部に２本のケーブル１０の一端部を結合
し、該ケーブル１０の他端部を各々支持部５Ａに結合す
ると共に、該支持部５Ａ同士を繋ぎ部材２２を介して結
合して、該繋ぎ部材２２を屋根版１の外郭部４の構成部
材としてもしなくても良い。Further, as shown in FIG. 13, one end of each of the two cables 10 is connected to the corner of the inner shell structure 8 and the other end of each of the cables 10 is connected to the supporting portion 5A. The supporting members 5A may be connected to each other via the connecting member 22, and the connecting member 22 may or may not be a constituent member of the outer shell 4 of the roof slab 1.
【００３７】更に、図１４に示すように、内郭部構造体
８の内方に対応する屋根版部分を開口部２３としても良
い。また、図９，１１に示すような屋根版１８，２０で
あっても、内郭部構造体１９，２１の内方に対応する屋
根版部分に同様に開口部を形成しても良い。Further, as shown in FIG. 14, the roof slab portion corresponding to the inner side of the inner shell structure 8 may be used as the opening 23. Further, even in the roof slabs 18 and 20 as shown in FIGS. 9 and 11, openings may be similarly formed in the roof slab portions corresponding to the inner sides of the inner shell structures 19 and 21.
【００３８】また、図４に示すように、屋根版１の外郭
部４より内方の下部に形成した内郭部構造体８の各コー
ナー部から二方向に前記屋根版１の支持部５Ａへケーブ
ル１０を介して結合したが、図１５に示すように、屋根
版１の外郭部４より内方の下部に形成した内郭部構造体
８の各コーナー部から一方向に前記屋根版１の支持部５
Ａへケーブル１０を介して結合しても良い。Further, as shown in FIG. 4, from each corner portion of the inner shell structure 8 formed below the outer shell 4 of the roof slab 1 to the supporting portion 5A of the roof slab 1 in two directions. Although connected through the cable 10, as shown in FIG. 15, the roof slab 1 is unidirectionally moved from each corner of the inner shell structure 8 formed below the outer shell 4 of the roof slab 1. Support part 5
It may be connected to A via the cable 10.
【００３９】[0039]
【発明の効果】以上のように、この発明に係る屋根構造
物は、請求項１，２に記載したものにおいては、屋根版
にはプレストレスが導入され、使用状態において、屋根
版の外郭部に支持された内郭部構造体に働く圧縮力を、
予め導入してある引張力で相殺して、該支持部が負担す
る荷重を小さくでき、また屋根版の外郭部に働く引張力
を、予め導入してある圧縮力で相殺して、該外郭部が負
担する荷重を小さくできる。従って、従来に比べて屋根
版を構成する構造部材を比較的に小さい断面のものとし
て小型・軽量化しながら屋根版に十分な強度を確保し
て、従来に比べて屋根版の軽量化・大型化を図ることが
できる。As described above, in the roof structure according to the present invention as set forth in claims 1 and 2, prestress is introduced into the roof slab, and the outer shell of the roof slab is in use. The compressive force acting on the inner shell structure supported by
The tension that is introduced in advance can be offset to reduce the load that the support portion bears, and the tensile force that acts on the outer portion of the roof slab can be offset by the compression force that is introduced in advance to the outer portion. The load borne by the can be reduced. Therefore, the structural members that make up the roof slab have a relatively small cross-section and are made smaller and lighter while ensuring sufficient strength for the roof slab, making the roof slab lighter and larger than before. Can be achieved.
【００４０】また、この発明に係る屋根構造物の施工法
は、請求項３に記載したものにおいては、屋根版の外郭
部に配置したケーブルの在来技術による緊張作業で屋根
版にプレストレスを導入しながら該屋根版を支持部材上
で立て起こして、前記屋根構造物を容易に構築でき、該
屋根構造物の施工が従来に比べて安全に能率良く行え
る。In the method for constructing a roof structure according to the present invention, the roof slab is prestressed by the tensioning work by the conventional technique of the cable arranged in the outer portion of the roof slab. While introducing, the roof slab can be raised up on the support member to easily construct the roof structure, and the construction of the roof structure can be performed safely and efficiently as compared with the conventional construction.
【図１】この発明の一実施例になる屋根構造物を示す平
面図である。FIG. 1 is a plan view showing a roof structure according to an embodiment of the present invention.
【図２】図１のＰ−Ｐ線に沿う断面図である。FIG. 2 is a cross-sectional view taken along the line P-P of FIG.
【図３】同屋根構造物を正面から視た軸組図である。FIG. 3 is a frame diagram of the roof structure viewed from the front.
【図４】同屋根構造物の斜視図である。FIG. 4 is a perspective view of the roof structure.
【図５】（１） ケーブル緊張定着部構造の一例を示す
正面図である。 （２） ケーブル緊張定着部構造の他の例を示す正面図
である。 （３） ケーブル緊張定着部構造の更に他の例を示す正
面図である。5 (1) is a front view showing an example of a cable tension fixing unit structure. FIG. (2) It is a front view which shows the other example of a cable tension fixing | fixed part structure. (3) A front view showing still another example of the cable tension fixing portion structure.
【図６】図１の部分拡大図である。6 is a partially enlarged view of FIG.
【図７】屋根版の他の構造例を示す図６に対応した平面
図である。FIG. 7 is a plan view corresponding to FIG. 6, showing another structural example of the roof slab.
【図８】屋根版の更に他の構造例を示す図６に対応した
平面図である。FIG. 8 is a plan view corresponding to FIG. 6 showing still another structural example of the roof slab.
【図９】この発明の他の実施例になる屋根構造物を示す
平面図である。FIG. 9 is a plan view showing a roof structure according to another embodiment of the present invention.
【図１０】同屋根構造物の正面図である。FIG. 10 is a front view of the roof structure.
【図１１】この発明の更に他の実施例になる屋根構造物
を示す平面図である。FIG. 11 is a plan view showing a roof structure according to still another embodiment of the present invention.
【図１２】同屋根構造物の正面図である。FIG. 12 is a front view of the roof structure.
【図１３】この発明の更に他の実施例になる屋根構造物
を示す斜視図である。FIG. 13 is a perspective view showing a roof structure according to still another embodiment of the present invention.
【図１４】同屋根構造物の変形例を示す斜視図である。FIG. 14 is a perspective view showing a modified example of the roof structure.
【図１５】ケーブルの一方向緊張で構築する屋根構造物
を示す図１３に対応した斜視図である。FIG. 15 is a perspective view corresponding to FIG. 13, showing a roof structure constructed by unidirectional tension of a cable.
１，１２，１４，１８，２０ 屋根版 ４ 外郭部 ５Ａ 支持部 ５Ｂ 支持部材 ８ａ 梁 ８，１９，２１ 内郭部構造体 １０ ケーブル 1,12,14,18,20 Roof slab 4 Outer shell portion 5A Support portion 5B Support member 8a Beam 8,19,21 Inner shell portion structure 10 Cable
Claims (3)
所の支持部を設け、該支持部を、前記屋根版を支持する
支持部材上に移動可能に支持すると共に、前記屋根版の
外郭部より内方の下部に、梁で構成した多角形の内郭部
構造体を形成し、該内郭部構造体の各コーナー部から前
記屋根版の支持部へケーブルを介して結合し、該ケーブ
ルの緊張で前記支持部を前記屋根版の内方方向に移動さ
せた状態で、該支持部を前記支持部材上に固定してある
ことを特徴とする屋根構造物。1. A polygonal roof slab is provided with a plurality of supporting portions on an outer portion thereof, the supporting portions are movably supported on a supporting member for supporting the roof slab, and the outer portion of the roof slab is also supported. In the lower part inward of the portion, a polygonal inner shell structure formed of a beam is formed, and each corner portion of the inner shell structure is connected to a supporting portion of the roof slab via a cable, A roof structure, wherein the support portion is fixed on the support member in a state where the support portion is moved inward of the roof slab due to tension of a cable.
所の支持部を設け、該支持部を、前記屋根版を支持する
支持部材上に移動可能に支持すると共に、前記屋根版の
外郭部より内方の下部に、梁で構成した多角形の内郭部
構造体を形成し、該内郭部構造体の各コーナー部から二
方向に前記屋根版の支持部へケーブルを介して結合し、
該ケーブルの緊張で前記支持部を前記屋根版の内方方向
に移動させた状態で、該支持部を前記支持部材上に固定
してあることを特徴とする屋根構造物。2. A polygonal roof slab is provided with a plurality of support portions on an outer shell portion thereof, the support portions are movably supported on a support member for supporting the roof slab, and the outer shell portion of the roof slab is supported. A polygonal inner shell structure composed of beams is formed in the lower part of the inner part, and each corner portion of the inner shell structure is connected in two directions to a supporting portion of the roof slab via a cable. Then
A roof structure, wherein the support portion is fixed on the support member in a state where the support portion is moved inward of the roof slab due to tension of the cable.
所の支持部を設け、該支持部を、前記屋根版を支持する
支持部材上に移動可能に支持すると共に、前記屋根版の
外郭部より内方の下部に、梁で構成した多角形の内郭部
構造体を形成し、該内郭部構造体の各コーナー部から前
記屋根版の支持部へケーブルを介して結合した後、該ケ
ーブルを緊張して、前記支持部を前記屋根版の内方方向
に移動させ、しかる後、該支持部を前記支持部材上に固
定することを特徴とする屋根構造物の施工法。3. A roof slab having a polygonal shape is provided with a plurality of support portions on an outer shell thereof, the support portions are movably supported on a support member for supporting the roof slab, and the outer shell of the roof slab is also provided. In the lower part inward from the part, after forming a polygonal inner shell structure composed of beams, after connecting from each corner of the inner shell structure to the support of the roof slab via a cable, A method for constructing a roof structure, comprising tensioning the cable to move the support portion inward of the roof slab, and then fixing the support portion onto the support member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30964493A JP2696478B2 (en) | 1993-11-17 | 1993-11-17 | Roof structure and its construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30964493A JP2696478B2 (en) | 1993-11-17 | 1993-11-17 | Roof structure and its construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07139038A true JPH07139038A (en) | 1995-05-30 |
| JP2696478B2 JP2696478B2 (en) | 1998-01-14 |
Family
ID=17995529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30964493A Expired - Fee Related JP2696478B2 (en) | 1993-11-17 | 1993-11-17 | Roof structure and its construction method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2696478B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012012796A (en) * | 2010-06-30 | 2012-01-19 | Takenaka Komuten Co Ltd | Building having large span roof structure |
| JP2021006690A (en) * | 2019-06-28 | 2021-01-21 | 日鉄エンジニアリング株式会社 | Roof, roof design method, and roof design device |
-
1993
- 1993-11-17 JP JP30964493A patent/JP2696478B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012012796A (en) * | 2010-06-30 | 2012-01-19 | Takenaka Komuten Co Ltd | Building having large span roof structure |
| JP2021006690A (en) * | 2019-06-28 | 2021-01-21 | 日鉄エンジニアリング株式会社 | Roof, roof design method, and roof design device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2696478B2 (en) | 1998-01-14 |
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| JP2682973B2 (en) | Ground anchor fixing structure |
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