JPS61169506A - Connection of floor panel and receiving beam - Google Patents
Connection of floor panel and receiving beamInfo
- Publication number
- JPS61169506A JPS61169506A JP964785A JP964785A JPS61169506A JP S61169506 A JPS61169506 A JP S61169506A JP 964785 A JP964785 A JP 964785A JP 964785 A JP964785 A JP 964785A JP S61169506 A JPS61169506 A JP S61169506A
- Authority
- JP
- Japan
- Prior art keywords
- girder
- elastic body
- fulcrum
- flange
- elastic
- 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
Landscapes
- Bridges Or Land Bridges (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔発明の目的〕
（産業上の利用分野）
本発明は、橋梁構造物の床版の支持桁の不等沈下に原因
する付加応力を減殺することを目的とする床版の受桁取
り合い接１合方法に関する。[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention is directed to a deck for reducing added stress caused by uneven settlement of supporting girders of deck slabs of bridge structures. This invention relates to a method for joining plates together.
（従来技術及び背ｍ＞
橋梁構造物において、床版は載荷量が最も苛酷に作用す
る部分であり、損傷することが多い。床版破損の原因は
様々であるが、その一つの支点沈下即ち床版を支える受
桁の撓みに起因する付加応力の累加が考えられる。また
ＲＣ床版では数多くの縦桁、横桁の組合せからなる床組
を支点として連続す”る版であるが、この床版を支える
床組は年月の経過により劣化する事例が多い。特に潮風
の影響を受けるとき、あるいは積雪除去手段として塩カ
ルの影響を受けるとき、床組はフランジ、腹板共にやせ
劣え桁剛性は著しく劣化する。床組の各部材の剛性に差
異が生じるとき、床版支点は様々な不等沈下を生じ、結
果として床版に載荷による曲げ応力と共に支点沈下によ
る付加応力が作用し、床版損傷を促進する。(Prior art and height> In a bridge structure, the deck slab is the part that is subjected to the most severe load and is often damaged. There are various causes of deck slab damage, but one of them is fulcrum settlement, i.e. It is thought that the added stress is cumulative due to the deflection of the support girders that support the deck slab.In addition, in RC deck slabs, the slab is continuous with the floor assembly consisting of many combinations of vertical and horizontal girders as the fulcrum. There are many cases in which the floor assemblies that support the floor slabs deteriorate over time.Especially when they are affected by sea breezes or when they are affected by salt calcification as a means of removing snow, both the flanges and the bottom plates of the floor assemblies become thin and deteriorate. The rigidity of the girder deteriorates significantly.When there is a difference in the rigidity of each member of the floor assembly, the deck slab fulcrum causes various uneven settlements, and as a result, additional stress due to the fulcrum settlement acts on the slab in addition to the bending stress due to loading. , promoting deck damage.
また載荷による床版挙動の一例を第５図及び第６図に示
せば、床版は第１図点線のように捩れ、第６図点線のよ
うに昇降する挙動を示す。ここで、１は床版、２は桁を
示す。Further, an example of the behavior of the floor slab due to loading is shown in FIGS. 5 and 6. The floor slab twists as shown by the dotted line in FIG. 1, and moves up and down as shown by the dotted line in FIG. 6. Here, 1 indicates the floor slab and 2 indicates the girder.
本発明者等は、先にこのような挙動を弾撥体の変化によ
り制御し、床版の破損の一因を緩和するため床版と受桁
を板ばね等の弾撥体を用いて締結ボルト等の締結具を用
いて締めつける床版と受桁取り合い接合方法に関する発
明を特公昭５９−４２１２５号公報で発表した。The present inventors previously controlled this behavior by changing the elastic body, and in order to alleviate the cause of deck failure, the deck slab and support girder were fastened together using elastic bodies such as leaf springs. He published an invention in Japanese Patent Publication No. 59-42125 regarding a method for connecting deck slabs and girders that are tightened using fasteners such as bolts.
この方法は床版に位置する一定の大きさを有する補剛材
の任意の個所に板ばねのような弾撥体を定着する定着点
を求めて弾撥体の中程を締結ボルトのような締結具を用
いて定着するとともに桁と床版に弾撥体支点を見つけて
、支点を弾撥体の端部で受け、弾撥体の弾撥力をもって
桁と床版とを締結する構成からなるものである。This method involves finding a fixing point for fixing a resilient body such as a leaf spring at an arbitrary point on a stiffener of a certain size located on the floor slab, and then tightening the middle part of the resilient body with a bolt such as a bolt. It is fixed using fasteners, finds an elastic fulcrum on the girder and the deck, receives the fulcrum at the end of the elastic, and uses the elastic force of the elastic body to fasten the girder and deck. It is what it is.
（発明が解決しようとする問題点）
この考え方は、応力集中あるいは付加応力発生の懸念の
ある部位の接合を弾撥体を介して一定の締め付は力で締
結するとき弾撥体の変形でこれが緩衝され、結果として
応力の積み上げが減殺でき、床版破損を防護できるとす
るものであるが、ここでの構成は桁と床版又は桁のみと
弾撥体との締結が垂直方向のみの締結であり、水平方向
の床版の移動制御についての考慮をしていなかった。(Problem to be solved by the invention) This idea is based on the idea that when connecting parts where there is a risk of stress concentration or additional stress, a certain amount of tightening is done using force through an elastic body, the elastic body deforms. This is buffered, and as a result, the buildup of stress can be reduced and damage to the deck slab can be prevented. However, the configuration here is such that the connection between the girder and the deck, or only the girder and the resilient body, is only in the vertical direction. It was concluded that there was no consideration given to controlling the movement of the floor slab in the horizontal direction.
本発明は、上記発明をさらに発展させて床版の垂直方向
の移動制御のみならず、水平方向への移動制御をも可能
ならしめた床版と受桁取り合い接合方法を提供しようと
するものである。The present invention further develops the above-mentioned invention to provide a method for joining a floor slab and a support girder, which makes it possible to control not only the vertical movement of the floor slab, but also the horizontal movement. be.
（発明の構成）
（問題点を解決するための手段）
本発明は、その構成要件を■床版下面に折り返し状にし
た弾撥体を定着するための定着点を床版下面に求め、こ
の定着点に弾撥体を不等厚座金及び締結具を用いて定着
するとともに桁のフランジの端部及び桁のフランジの下
面に弾撥体の支点を定め、フランジ端面に定めた支点を
弾撥体の一端で受け、フランジ下面に定めた支点を弾撥
体の他端で受け、弾撥体の弾撥力をもって桁と床版を締
結することを特徴とする床版と受桁取り合い接合方法と
することにより、また、■床版下面に折り返し状にした
弾撥体を定着するための定着点を床版下面に求め、この
定着点に弾撥体を不等厚座金をはさんで締結具を用いて
定着するとともに桁のフランジの端部に凹部を形成した
移動拘束体を固着し、移動拘束体の凹部と桁のフランジ
の下面に弾撥体の支点を定め、移動拘束体の凹部に定め
た支点を弾撥体の一端で受け、下面に定めた支点を弾撥
体の他端で受け、弾撥体の弾撥力をもって桁と床版を締
結することを特徴とする床版と受桁取り合い接合方法と
することにより上記問題点を解決する。(Structure of the Invention) (Means for Solving the Problems) The present invention has the following features: Fix the elastic body to the fixing point using washers of unequal thickness and fasteners, and set the fulcrum of the elastic body at the end of the flange of the girder and the lower surface of the flange of the girder, and use the fulcrum set at the end face of the flange to repel the elastic body. A method for joining a deck slab and a girder, characterized in that the girder and the deck are connected by the elastic force of the elastic body, by receiving the fulcrum set on the lower surface of the flange at one end of the elastic body and by using the elastic force of the elastic body. By doing this, we also found a fixing point on the bottom surface of the floor slab for fixing the elastic body folded in a shape on the bottom surface of the floor slab, and fastened the elastic body to this fixing point by sandwiching washers of unequal thickness. A movable restraint body with a recess formed in the end of the flange of the girder is fixed using a tool, and the fulcrum of the elastic body is set in the concave part of the movable restraint body and the lower surface of the flange of the girder, and the recess of the movable restraint body is fixed. A floor slab characterized in that one end of the resilient body receives a fulcrum set on the lower surface, the other end of the resilient body supports a fulcrum determined on the lower surface, and the girder and the slab are connected by the elastic force of the resilient body. The above-mentioned problems are solved by using a cross-supporting girder joining method.
（実施例）
つぎに本発明の実施例を第１図から第４図に基いて説明
する。(Example) Next, an example of the present invention will be described based on FIGS. 1 to 4.
第１図及び第２図は、いずれもＲＣ床版に本発明を実施
したところを示すもので、１は床版、２は桁、５は弾撥
体、７は不等厚座金である。1 and 2 both show the present invention applied to an RC floor slab, where 1 is a floor slab, 2 is a girder, 5 is an elastic body, and 7 is a washer of unequal thickness.
床版１は公知のように床版１のハンチ３下面と桁２のフ
ランジ２ａの上面との間に不陸調整層４を設けて桁２に
位置している。The floor slab 1 is located on the girder 2 with an unevenness adjusting layer 4 provided between the lower surface of the corbel 3 of the floor slab 1 and the upper surface of the flange 2a of the girder 2, as is known.
弾撥体５は板ばね等からなり０字を変形した形状の折り
返し状に形成されている。The elastic body 5 is made of a leaf spring or the like and is formed into a folded shape that is a deformed letter 0.
そして、この弾撥体５はその一端５ａを桁２のフランジ
２ａの端面に、他端５ｂを桁２のフランジ２ａの下面に
それぞれ弾撥体５の支点として受けさしめるとともに折
り返し形状の中程を締結ボルト６等の締結具を挿通して
床版下面であるハンチ３に一定の締め付は力で締結され
ている。The elastic body 5 has one end 5a received on the end surface of the flange 2a of the girder 2, and the other end 5b on the lower surface of the flange 2a of the girder 2 as a fulcrum of the elastic body 5. A fastening tool such as a fastening bolt 6 is inserted into the haunch 3, which is the lower surface of the floor slab, and is fastened to a certain level with a certain force.
具体的には第１図にあってはハンチ３の下面と弾撥体５
の間に不等厚座金７を介在させである。Specifically, in FIG. 1, the lower surface of the haunch 3 and the elastic body 5
Washers 7 of unequal thickness are interposed between them.
不等厚座金は公知のように少くとも一つの面が傾斜状に
形成されている。ここでは不等厚座金７をハンチ下面側
に位置させ、不等厚座金７の水平面をパンチ下面に、傾
斜面を桁２方向に、かつ、弾撥体５に向くようにしであ
る。締結ボルト６のボルト頭６ａ側には通常の座金８が
必要に応じて介在している。なお、締結ボルト６の他端
は、公知の方法により、この実施例では、床版１の切り
欠き１１にナツト１０．座金９を用いて止められている
。As is well known, at least one surface of the unequal thickness washer is formed in an inclined shape. Here, the washer 7 of unequal thickness is positioned on the lower surface side of the corbel, with the horizontal surface of the washer 7 of unequal thickness facing the lower surface of the punch, and the inclined surface facing toward the girder 2 and toward the elastic body 5. A normal washer 8 is interposed on the bolt head 6a side of the fastening bolt 6 as necessary. In this embodiment, the other end of the fastening bolt 6 is inserted into the notch 11 of the floor slab 1 with a nut 10. It is fastened using a washer 9.
第２図にあっては弾撥体５の形状と不等厚座金７の位置
が第１図の場合と異なる実施例を示しである。FIG. 2 shows an embodiment in which the shape of the elastic body 5 and the position of the unequal thickness washer 7 are different from those in FIG. 1.
ここでは不等厚座金７をボルト頭６ａ側に位置させ、不
等厚座金７の水平面をボルト頭６ａに、傾斜面を桁２方
向に、かつ、弾撥体５に向くようにしである。弾撥体５
の形状は、不等厚座金７の傾斜面に適合する形状となっ
ており第１図の場合と上下がほぼ逆となっている。他の
構造は第１図の場合とほとんど異なるところがない。Here, the unequal thickness washer 7 is positioned on the bolt head 6a side, with the horizontal surface of the unequal thickness washer 7 facing the bolt head 6a, and the inclined surface facing the girder 2 and the elastic body 5. Elastic body 5
The shape is adapted to the inclined surface of the washer 7 of unequal thickness, and the top and bottom are almost reversed from those shown in FIG. The other structures are almost the same as those shown in FIG.
なお、弾撥体５の一端と桁２のフランジ２ａの端面との
間に１状体１２が介在しているが、この構造も本発明に
いう桁のフランジ端面の定めた支点を弾撥体の一端で受
けている構造といえる。すなわち本発明は弾撥体端部と
支点の間が間接的であることを妨げるものではない。Note that a one-shaped body 12 is interposed between one end of the elastic body 5 and the end face of the flange 2a of the girder 2, and this structure also has a structure in which the fulcrum defined by the end face of the flange of the girder referred to in the present invention is It can be said that the structure is supported at one end. That is, the present invention does not prevent the connection between the end of the elastic body and the fulcrum being indirect.
第３図は第１図に示した実施例に新たな構成要件を付加
した実施例を示す。FIG. 3 shows an embodiment in which new structural requirements are added to the embodiment shown in FIG. 1.
具体的には移動拘束体１３は取り付は部１３ａ１拘束部
１３ｂにより平面口字状の凹部を形成してなり、桁２の
フランジ２ａの端面付近の不陸調整層４の取り付は嵌め
込み部に取り付は部１３ａを嵌め込まれ、拘束部１３ｂ
を桁２のフランジ２ａの端面に密接して取り付けられて
いる。この凹部に弾撥体５の一端をはさみ込むとともに
凹部を弾撥体５の一端の支点とする。Specifically, the movable restraint body 13 is attached by forming a planar opening-shaped recess with the portions 13a1 and 13b, and the unevenness adjusting layer 4 near the end face of the flange 2a of the girder 2 is attached by an inset portion. For installation, the part 13a is fitted, and the restraining part 13b
is attached closely to the end face of the flange 2a of the girder 2. One end of the elastic body 5 is inserted into this recess, and the recess is used as a fulcrum for the one end of the elastic body 5.
弾撥体５は第１図のように板ばね等からなりＵ字を変形
した形状の折り返し状に形成されている。As shown in FIG. 1, the elastic body 5 is made of a leaf spring or the like and is formed into a folded shape that is a modified U-shape.
そして、この弾撥体５は、その一端５ａを桁２のフラン
ジ２ａの端面に設けた上記移動拘束体１３の凹部にはさ
み込むとともにこの凹部を支点として受けさしめ、他端
５ｂを桁２のフランジ２ａの下面に支点として受けさし
めるとともに折り返し形状の中程を締結ボルト６等の締
結具を挿通して床版下面であるハンチ３に一定の締め付
は力で締結されている。One end 5a of the elastic body 5 is inserted into the recess of the movement restraint body 13 provided on the end face of the flange 2a of the girder 2, and the elastic body 5 is received using this recess as a fulcrum, and the other end 5b is inserted into the recess of the movable restraint body 13 provided on the end face of the flange 2a of the girder 2. It is received as a fulcrum on the lower surface of the flange 2a, and a fastener such as a fastening bolt 6 is inserted through the middle of the folded shape to be fastened to the haunch 3, which is the lower surface of the floor slab, with a certain amount of force.
なお、桁２のフランジ２ａ端面と弾撥体５の一端の間に
移動拘束体１３が介在しているが、本発明にいうフラン
ジ２ａの端面の支点に定めた支点を弾撥体５の一端で受
けている構造といえる。ここで、異なる点は移動拘束体
１３は第１図、第２図の実施例にはない付加された作用
効果を有する。Note that a movement restraint body 13 is interposed between the end face of the flange 2a of the girder 2 and one end of the resilient body 5, but the fulcrum defined as the fulcrum of the end face of the flange 2a referred to in the present invention is the one end of the resilient body 5. It can be said that this structure is supported by The difference here is that the movable restraint body 13 has additional effects that are not present in the embodiments of FIGS. 1 and 2.
（作用効果）
本発明は、上述の構成からなるのでつぎの作用効果を有
する。(Effects) Since the present invention has the above-described configuration, it has the following effects.
まず応力集中あるいは付加応力の発生の懸念のある部位
すなわら床版と桁とを弾撥体を介して締め付は力で締結
しているので、応力集中あるいは付加応力の発生があっ
ても垂直方向の移動は弾撥体の変形でこれを緩和するこ
とができる。First of all, since the areas where stress concentration or additional stress is likely to occur, that is, the floor slab and girder, are tightened by force through elastic bodies, even if stress concentration or additional stress occurs, Vertical movement can be alleviated by deformation of the elastic body.
しかも、弾撥体の支点を桁の端面と下面に求め、弾撥体
の端部をそれぞれの支点に受けさしめ、がっ、不等厚座
金を用いることにより、応力集中あるいは付加応力の発
生があったとき、斜めの応力が生じ、水平分力が桁を拘
束し、床版の長さの水平方向の移動を制御する。In addition, by finding the fulcrums of the elastic body on the end and bottom surfaces of the girder, receiving the ends of the elastic body on each fulcrum, and using washers of unequal thickness, stress concentration or additional stress can be generated. When there is an oblique stress, the horizontal component restrains the girder and controls the horizontal movement of the length of the deck.
さらには移動拘束体を設け、移動拘束体の凹部をフラン
ジ端面に定めた弾撥体の支点とし、ここに弾撥体端部を
位置させたので、幅の水平方向の移動をも拘束する。Furthermore, a movement restraint body is provided, and the concave portion of the movement restraint body is used as a fulcrum for the resilient body defined on the end face of the flange, and since the end of the resilient body is positioned here, movement in the horizontal direction of the width is also restrained.
第１図は本発明の実施例を示す説明図、第２図は別の実
施例を示す説明図、第３図は第１図の実施例に新たな構
造を付加した実施例を示す説明図、第４図は第３図に示
した新たな構造を平面的に説明する説明図、第５図及び
第６図は載荷による床版の挙動を示す説明図である。
図面において、１は床版、２は桁、２ａはフランジ、３
はハンチ、４は不陸調整層、５は弾撥体、５ａ 、５ｂ
は弾撥体の端部、６はボルト、６ａはボルト頭、７は不
等厚座金、８．９は普通の座金。
１０はナツト、１１は切り欠き、１２は１状部材、１３
は移動拘束体、１３ａは取り付は部、１３ｂは拘束部で
ある。
特許出願人 ショーボンド建設株式会社代理人弁理士
宇 野 晴 海第５図
第６図Fig. 1 is an explanatory diagram showing an embodiment of the present invention, Fig. 2 is an explanatory diagram showing another embodiment, and Fig. 3 is an explanatory diagram showing an embodiment in which a new structure is added to the embodiment of Fig. 1. , FIG. 4 is an explanatory diagram for explaining the new structure shown in FIG. 3 in a plan view, and FIGS. 5 and 6 are explanatory diagrams showing the behavior of the floor slab due to loading. In the drawing, 1 is a floor slab, 2 is a girder, 2a is a flange, 3
is a haunch, 4 is an uneven adjustment layer, 5 is an elastic body, 5a, 5b
is the end of the elastic body, 6 is the bolt, 6a is the bolt head, 7 is a washer of unequal thickness, and 8.9 is a normal washer. 10 is a nut, 11 is a notch, 12 is a 1-shaped member, 13
13a is a movement restraint body, 13a is a mounting part, and 13b is a restraint part. Patent Applicant: Shobond Construction Co., Ltd. Representative Patent Attorney Harumi Uno Figure 5 Figure 6
Claims (2)
めの定着点を床版下面に求め、この定着点に弾撥体を不
等厚座金及び締結具を用いて定着するとともに桁のフラ
ンジの端面及び桁のフランジの下面に弾撥体の支点を定
め、フランジ端面に定めた支点を弾撥体の一端で受け、
フランジ下面に定めた支点を弾撥体の他端で受け、弾撥
体の弾撥力をもつて桁と床版を締結することを特徴とす
る床版と受桁取り合い接合方法。(1) Find a fixing point on the bottom surface of the floor slab to fix the folded elastic body on the bottom surface of the floor slab, fix the elastic body to this fixing point using washers of unequal thickness and fasteners, and The fulcrum of the resilient body is set on the end face of the flange and the lower face of the flange of the girder, and the fulcrum set on the flange end face is supported by one end of the resilient body,
A method for joining a deck slab and a support girder, characterized in that a fulcrum set on the lower surface of a flange is supported by the other end of an elastic body, and the girder and deck slab are fastened together using the elastic force of the elastic body.
めの定着点を床版下面に求め、この定着点に弾撥体を不
等厚座金をはさんで締結具を用いて定着するとともに桁
のフランジの端面に凹部を形成した移動拘束体を固着し
、移動拘束体の凹部と桁のフランジの下面に弾撥体の支
点を定め、移動拘束体の凹部に定めた支点を弾撥体の一
端で受け、下面に定めた支点を弾撥体の他端で受け、弾
撥体の弾撥力をもって桁と床版を締結することを特徴と
する床版と受桁取り合い接合方法。(2) Find a fixing point on the bottom surface of the floor slab for fixing the folded elastic body to the bottom surface of the floor slab, and fix the elastic body to this fixing point by sandwiching washers of unequal thickness and using fasteners. At the same time, a movable restraint body having a concave portion formed in the end face of the flange of the girder is fixed, and the fulcrum of the resilient body is set in the concave part of the movable restraint body and the lower surface of the flange of the girder, and the fulcrum point set in the concave part of the movable restraint body is made elastic. A method for joining a deck slab and a girder, which is characterized in that the girder and the deck are connected by receiving the elastic body at one end, supporting a fulcrum set on the lower surface at the other end of the elastic body, and using the elastic force of the elastic body. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP964785A JPS61169506A (en) | 1985-01-22 | 1985-01-22 | Connection of floor panel and receiving beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP964785A JPS61169506A (en) | 1985-01-22 | 1985-01-22 | Connection of floor panel and receiving beam |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61169506A true JPS61169506A (en) | 1986-07-31 |
| JPH0358403B2 JPH0358403B2 (en) | 1991-09-05 |
Family
ID=11726008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP964785A Granted JPS61169506A (en) | 1985-01-22 | 1985-01-22 | Connection of floor panel and receiving beam |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61169506A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100772949B1 (en) * | 2001-04-12 | 2007-11-02 | 리세가 게엠베하 | Clamping device for clamping girders |
| JP2009281110A (en) * | 2008-05-26 | 2009-12-03 | Railway Technical Res Inst | Fixing means for floor slab for railway track |
| JP2009281111A (en) * | 2008-05-26 | 2009-12-03 | Railway Technical Res Inst | Fixing device for floor slab for railway track |
| JP2020007788A (en) * | 2018-07-09 | 2020-01-16 | 株式会社横河ブリッジ | Layered panel floor slab bridge and construction method of layered panel slab bridge |
-
1985
- 1985-01-22 JP JP964785A patent/JPS61169506A/en active Granted
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100772949B1 (en) * | 2001-04-12 | 2007-11-02 | 리세가 게엠베하 | Clamping device for clamping girders |
| JP2009281110A (en) * | 2008-05-26 | 2009-12-03 | Railway Technical Res Inst | Fixing means for floor slab for railway track |
| JP2009281111A (en) * | 2008-05-26 | 2009-12-03 | Railway Technical Res Inst | Fixing device for floor slab for railway track |
| JP2020007788A (en) * | 2018-07-09 | 2020-01-16 | 株式会社横河ブリッジ | Layered panel floor slab bridge and construction method of layered panel slab bridge |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0358403B2 (en) | 1991-09-05 |
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