JPH0718129B2 - Construction method for joints of composite structure vertical members - Google Patents
Construction method for joints of composite structure vertical membersInfo
- Publication number
- JPH0718129B2 JPH0718129B2 JP33382789A JP33382789A JPH0718129B2 JP H0718129 B2 JPH0718129 B2 JP H0718129B2 JP 33382789 A JP33382789 A JP 33382789A JP 33382789 A JP33382789 A JP 33382789A JP H0718129 B2 JPH0718129 B2 JP H0718129B2
- Authority
- JP
- Japan
- Prior art keywords
- steel
- concrete
- composite structure
- opening
- plate
- 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.)
- Expired - Fee Related
Links
Landscapes
- Rod-Shaped Construction Members (AREA)
- Foundations (AREA)
- Bridges Or Land Bridges (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、橋脚、柱、主塔などの鉛直部材を複合構造と
する場合の接合部の施工法に関する。Description: TECHNICAL FIELD The present invention relates to a method for constructing a joint when a vertical member such as a bridge pier, a pillar, or a main tower has a composite structure.
〔従来の技術〕 橋脚や斜張橋の主塔などの大断面の鉛直部材は、従来、
鋼製のみもしくはコンクリート製のみの単一部材で構成
することがほとんどである。[Prior Art] Large-section vertical members such as bridge piers and main towers of cable-stayed bridges have been
In most cases, it is composed of a single member made only of steel or concrete.
これは第５図に示すように、例えば橋脚１の下部を鉄筋
コンクリート２とし、上部を鋼３とするような複合構造
とした場合に、鉄筋コンクリート２と鋼３との接合部４
は圧縮力と引張力の両方を伝達できる構造とする技術が
確立されていないことによる。As shown in FIG. 5, for example, in the case of a composite structure in which the lower part of the pier 1 is reinforced concrete 2 and the upper part is steel 3, a joint part 4 between the reinforced concrete 2 and the steel 3 is formed.
Is due to the fact that no technology has been established to create a structure that can transmit both compressive and tensile forces.
なお、橋脚をコンクリート製とし、その上に鋼製の塔を
設けるなど、構造体が相違する場合の構造体同士の組合
わせにおいては、上部構造体のベースプレートを下部構
造体に埋込みアンカーフレーム及びアンカーボルト等を
用いて固定するなどの接合方法がとられるが、このよう
な接合は前記のごとき大断面の鉛直部材を断面変化が滑
らかな鋼とコンクリート等から成る複合構造とするもの
には適用できない。When the structures are different, such as when the pier is made of concrete and a steel tower is installed on the pier, the base plate of the upper structure is embedded in the lower structure to anchor frame and anchor. Joining methods such as fixing with bolts are used, but such joining cannot be applied to the above-mentioned large cross-section vertical member having a composite structure consisting of steel and concrete etc. with smooth cross-section change. .
本発明は前記従来例の不都合を解消し、圧縮力と引張力
の双方が充分伝達できる接合部を現場施工で得ることが
でき、その結果、従来ない複合構造の鉛直部材を得るこ
とができる施工法を提供することにある。The present invention eliminates the inconvenience of the above-mentioned conventional example, and can obtain a joint part capable of sufficiently transmitting both compressive force and tensile force by on-site construction, and as a result, it is possible to obtain a vertical member having a composite structure which has not existed before. To provide the law.
本発明は前記目的を達成するため、鋼製の上部構造に下
部コンクリート構造が接合するものであって、作業用の
水平開口を有し、その下方内側面にスタッドジベルを配
設し、下端にベースプレートを形成した鋼製セルを鉄筋
コンクリートの下部構造上に建込み、該開口から中詰コ
ンクリートを打設するとともにこの中詰コンクリートを
PC鋼材で緊張し、開口をプレートで閉塞した後で、その
直下の隙間をグラウト材で充填することを要旨とするも
のである。In order to achieve the above-mentioned object, the present invention is one in which a lower concrete structure is joined to a steel upper structure, which has a horizontal opening for working, and a stud dowel is arranged on the lower inner surface thereof, and a lower end is provided at the lower end. A steel cell with a base plate is built on the substructure of reinforced concrete, and the filled concrete is poured from the opening and the filled concrete is
The gist is to fill the gap just below with a grout material after tensioning with PC steel and closing the opening with a plate.
本発明により施工された接合部によれば、鋼製の上部構
造から鋼製セルに伝達される圧縮力は、プレート及びス
タッドジベルにより中詰コンクリートに伝達され、また
鋼製セル下端のベースプレートは接合面下面の鉄筋コン
クリート下部構造の支圧応力度を緩和する。According to the joint constructed according to the present invention, the compressive force transmitted from the steel superstructure to the steel cell is transmitted to the filled concrete by the plate and the stud dowel, and the base plate at the lower end of the steel cell is joined. The bearing stress of the reinforced concrete substructure on the lower surface is relaxed.
また、鋼製セルから伝達される引張力は、スタッドジベ
ルにそって配置される鉄筋により、各ジベルに平均的に
負担させてプレストレスを導入された中詰コンクリート
に伝達される。Further, the tensile force transmitted from the steel cell is transmitted to the pre-stressed filled concrete that is predominantly applied to the respective gibbers by the reinforcing bars arranged along the stud dowels.
さらに、PC鋼材によって導入される緊張力により鋼構造
とコンクリート構造の密着性が高められ、コンクリート
のひび割れ発生も防止される。Furthermore, the tension force introduced by PC steel improves the adhesion between the steel structure and the concrete structure, and prevents cracking of concrete.
以下、図面について本発明の実施例を詳細に説明する。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
第１図は本発明の複合構造鉛直部材の接合部の施工法の
１実施例を示す縦断側面図で、図中５は鋼製セルであ
る。FIG. 1 is a vertical sectional side view showing an embodiment of a method for constructing a joint portion of a composite structure vertical member of the present invention, in which 5 is a steel cell.
この鋼製セル５は第３図に示すように縦板の中仕切り６
により矩形の小区画７に分かれるもので、各区画７には
第２図に示すように内外に向けて縦方向に突設する補剛
リブ８を形成した。As shown in FIG. 3, the steel cell 5 includes a vertical partition 6
2 is divided into rectangular small sections 7, and each section 7 is formed with a stiffening rib 8 protruding vertically inward and outward as shown in FIG.
また、区画７は深さ途中を開口９を形成した水平板10で
仕切り、この水平板10から下部の内側面にスタッドジベ
ル11を突設する。さらに、鋼製セル５の下端はフランジ
状に形成してベースプレート12とした。Further, the partition 7 is partitioned in the middle of the depth by a horizontal plate 10 having an opening 9 formed therein, and a stud dowel 11 is provided so as to project from the horizontal plate 10 to the lower inner surface. Further, the lower end of the steel cell 5 was formed into a flange shape to form a base plate 12.
本発明はこのような鋼製セル５を使用するもので、第１
図に示すように鉄筋コンクリートの下部構造13上に鋼製
セル５を建込む。The present invention uses such a steel cell 5 as described above.
As shown in the figure, a steel cell 5 is built on the substructure 13 of reinforced concrete.
そして、前記水平な開口９を作業用開口としてスタッド
ジベル11に沿って鉄筋14を配設し、またPC鋼材15を配設
する。この鉄筋14は下部構造13の鉄筋コンクリートの鉄
筋14′に接続させ、PC鋼材15は同じく下部構造13の鉄筋
コンクリート中のPC鋼材15′にカップラー16を介して接
続させるものである。Then, a reinforcing bar 14 is arranged along the stud dowel 11 using the horizontal opening 9 as a working opening, and a PC steel material 15 is arranged. The rebar 14 is connected to the rebar 14 'of the reinforced concrete of the lower structure 13, and the PC steel material 15 is connected to the PC steel material 15' in the reinforced concrete of the lower structure 13 via the coupler 16.
その後、前記開口９から水平板10下に定着板21をセット
したのち中詰コンクリート17を打設し、この中詰コンク
リート17の硬化後、PC鋼材15を緊張し、中詰コンクリー
ト17にプレストレスを付与する。After that, the fixing plate 21 is set under the horizontal plate 10 through the opening 9 and then the filled concrete 17 is placed. After the filled concrete 17 is hardened, the PC steel material 15 is tensioned to prestress the filled concrete 17. Is given.
この中詰コンクリート17の上端と開口９がある水平板10
との間には隙間があるが、水平板10上にプレート18を載
置して開口９を閉塞し、かつ水平板10とプレート18とを
ボルト20で固定し、裏込め注入の方法等で前記中詰コン
クリート17の上部隙間をグラウト材19で充填する。The horizontal plate 10 with the top of this filling concrete 17 and the opening 9
Although there is a gap between the horizontal plate 10 and the plate 18, the plate 18 is placed on the horizontal plate 10 to close the opening 9, and the horizontal plate 10 and the plate 18 are fixed with bolts 20. The gap above the filled concrete 17 is filled with grout material 19.
以上は１区画７の施工であるが、鋼製セル５のすべての
区画７について同様の施工を施し、接合部４を完成させ
る。そして、鋼製セル５の上部は図示は省略するが鋼製
の上部構造に上端が接合する。The above is the construction of one section 7, but the same construction is applied to all the sections 7 of the steel cell 5 to complete the joint portion 4. Although not shown, the upper portion of the steel cell 5 is joined to the upper structure made of steel.
なお、この鋼製の上部構造の一部として一体的に鋼製セ
ル５を設けるようにしてもよい。The steel cell 5 may be integrally provided as a part of the steel upper structure.
このようにして、鋼製セル５を接合部４とすることで橋
脚１等の鉛直部材が、第４図に示すように下部を鉄筋コ
ンクリート２とし、上部を鋼３とする複合構造で形成で
きる。In this way, by using the steel cell 5 as the joint portion 4, a vertical member such as the bridge pier 1 can be formed in a composite structure in which the lower portion is reinforced concrete 2 and the upper portion is steel 3 as shown in FIG.
この複合構造の鉛直部材では、上部構造の鋼３から鋼製
セル５に伝達される断面力（M,H,V）による圧縮力は、
水平板10及びプレート18及びスタッドジベル11により中
詰コンクリート17に伝達され、また鋼製セル５の下端の
ベースプレート12は接合面下面の鉄筋コンクリート２の
支圧応力度を緩和する。In the vertical member of this composite structure, the compressive force due to the sectional force (M, H, V) transmitted from the steel 3 of the upper structure to the steel cell 5 is
The horizontal plate 10 and the plate 18 and the stud dowel 11 transmit it to the filled concrete 17, and the base plate 12 at the lower end of the steel cell 5 relaxes the bearing stress of the reinforced concrete 2 below the joint surface.
また、鋼製セル５から伝達される引張力は、スタッドジ
ベル11及びスタッドジベル11にそって配置した鉄筋14に
より、プレストレスが導入されている中詰コンクリート
17に平均的に伝達させる。Further, the tensile force transmitted from the steel cell 5 is filled with prestress by the stud dowels 11 and the reinforcing bars 14 arranged along the stud dowels 11.
Have 17 communicate on average.
さらに、PC鋼材15により鋼３の上部構造と鉄筋コンクリ
ート２の下部構造の密着性が高められ、コンクリートの
ひび割れ発生も防止する。Further, the PC steel material 15 enhances the adhesion between the upper structure of the steel 3 and the lower structure of the reinforced concrete 2 and also prevents cracking of the concrete.
以上述べたように本発明の複合構造鉛直部材の接合部の
施工法は、上部構造と下部構造の接合部で圧縮力と引張
力の双方の伝達を満足させることができるものであり、
大型橋脚、斜張橋の主塔、その他の大型柱など大断面の
鉛直部材を断面変化が滑らかな鋼とコンクリートの複合
構造とすることが現場施工で可能になるものである。As described above, the construction method of the joint portion of the composite structure vertical member of the present invention is capable of satisfying both the transmission of the compressive force and the tensile force at the joint portion of the upper structure and the lower structure,
Large-scale vertical members such as large bridge piers, main towers of cable-stayed bridges, and other large columns can be constructed on-site by combining steel and concrete with a smooth cross-section.
第１図は本発明の複合構造鉛直部材の接合部の施工法の
１実施例を示す縦断側面図、第２図は第１図のＡ−Ａ線
断面図、第３図は鋼製セルを示すもので第４図のＢ−Ｂ
線断面図、第４図は本発明のよる複合構造鉛直部材の説
明図、第５図は複合構造鉛直部材の概念説明図である。 １……橋脚、２……鉄筋コンクリート ３……鋼、４……接合部 ５……鋼製セル、６……中仕切り ７……小区画、８……補剛リブ ９……開口、10……水平板 11……スタッドジベル、12……ベースプレート 13……鉄筋コンクリートの下部構造 14,14′……鉄筋 15,15′……PC鋼材、16……カップラー 17……中詰コンクリート 18……プレート、19……グラウト材 20……ボルト、21……定着板FIG. 1 is a vertical sectional side view showing one embodiment of a method for constructing a joint portion of a composite structure vertical member of the present invention, FIG. 2 is a sectional view taken along the line AA of FIG. 1, and FIG. 3 shows a steel cell. Shown is BB in FIG.
A line sectional view, FIG. 4 is an explanatory view of a composite structure vertical member according to the present invention, and FIG. 5 is a conceptual explanatory view of a composite structure vertical member. 1 ... Bridge pier, 2 ... Reinforced concrete 3 ... Steel, 4 ... Joined portion 5 ... Steel cell, 6 ... Medium partition 7 ... Small section, 8 ... Stiffening rib 9 ... Opening, 10 ... … Horizontal plate 11 …… Stud dowel, 12 …… Base plate 13 …… Reinforced concrete substructure 14,14 ′ …… Reinforcing bar 15,15 ′ …… PC steel, 16 …… Coupler 17 …… Mixed concrete 18 …… Plate , 19 ...... Grout material 20 ...... Bolt, 21 ...... Fusing plate
───────────────────────────────────────────────────── フロントページの続き (72)発明者 村尾 義則 東京都調布市飛田給２丁目19番１号 鹿島 建設株式会社技術研究所内 (56)参考文献 実開 昭61−193151（ＪＰ，Ｕ) ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Yoshinori Murao Inventor Yoshinori Murata 2-191-1 Tobita-cho, Chofu-shi, Tokyo Kashima Construction Co., Ltd. Technical Research Institute (56) References
Claims (1)
接合するものであって、作業用の水平開口を有し、その
下方内側面にスタッドジベルを配設し、下端にベースプ
レートを形成した鋼製セルを鉄筋コンクリートの下部構
造上に建込み、該開口から中詰コンクリートを打設する
とともにこの中詰コンクリートをPC鋼材で緊張し、開口
をプレートで閉塞した後で、その直下の隙間をグラウト
材で充填することを特徴とする複合構造鉛直部材の接合
部の施工法。1. A steel structure in which a lower concrete structure is joined to a steel upper structure, which has a horizontal opening for working, a stud dowel is arranged on the inner surface below the steel, and a base plate is formed on the lower end. The cell is built on the substructure of reinforced concrete, and the filled concrete is placed from the opening and the filled concrete is tensioned with PC steel material, and after closing the opening with the plate, the gap immediately below it is grouted. A method for constructing a joint of a vertical member having a composite structure, which is characterized by filling with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33382789A JPH0718129B2 (en) | 1989-12-22 | 1989-12-22 | Construction method for joints of composite structure vertical members |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33382789A JPH0718129B2 (en) | 1989-12-22 | 1989-12-22 | Construction method for joints of composite structure vertical members |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03194009A JPH03194009A (en) | 1991-08-23 |
| JPH0718129B2 true JPH0718129B2 (en) | 1995-03-01 |
Family
ID=18270387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33382789A Expired - Fee Related JPH0718129B2 (en) | 1989-12-22 | 1989-12-22 | Construction method for joints of composite structure vertical members |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0718129B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5104080B2 (en) * | 2007-07-10 | 2012-12-19 | 株式会社大林組 | Structure and method for joining pier and footing |
| CN111877763B (en) * | 2020-08-12 | 2022-02-01 | 重庆大学建筑规划设计研究总院有限公司 | Column base construction method of raw bamboo cluster building |
-
1989
- 1989-12-22 JP JP33382789A patent/JPH0718129B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03194009A (en) | 1991-08-23 |
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|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
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