JPH0437894B2 - - Google Patents
Info
- Publication number
- JPH0437894B2 JPH0437894B2 JP59141397A JP14139784A JPH0437894B2 JP H0437894 B2 JPH0437894 B2 JP H0437894B2 JP 59141397 A JP59141397 A JP 59141397A JP 14139784 A JP14139784 A JP 14139784A JP H0437894 B2 JPH0437894 B2 JP H0437894B2
- Authority
- JP
- Japan
- Prior art keywords
- beams
- longitudinal direction
- haunch
- cross
- steel material
- 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 - Lifetime
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- Joining Of Building Structures In Genera (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、プレストレストコンクリート梁を
使用する組立式ラーメン構造体における多スパン
梁の構築方法に関するのである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method of constructing a multi-span beam in a prefabricated rigid frame structure using prestressed concrete beams.
従来、プレストレストコンクリート部材組立式
ラーメン構造体における多スパン連続梁を接合す
る場合は、各梁の全長にわたつてPC鋼材等の緊
張材を挿通して定着する必要があるので施工が煩
雑であつた。また多スパン連続梁を任意の位置の
スパンから組立てて接合するためには、接合部だ
けに用いる短かい緊張材を使用して圧着接合して
いるので、接合強度の信頼性が低く、さらに組立
式ラーメン構造体において、２方向多スパン連続
梁を任意のスパンから組立接合する施工は困難と
されていた。
Conventionally, when joining multi-span continuous beams in a prestressed concrete member prefabricated rigid-frame structure, the construction was complicated because it was necessary to insert tension members such as prestressing steel over the entire length of each beam and fix it. . In addition, in order to assemble and join multi-span continuous beams from spans at arbitrary positions, short tendons are used only at the joints and are crimped and joined, resulting in low reliability of joint strength and In type rigid frame structures, it has been difficult to assemble and join two-way multi-span continuous beams from arbitrary spans.
この発明は前述の問題を有利に解決できるプレ
ストレストコンクリート部材組立式ラーメン構造
体における多スパン梁の構築方法を提供すること
を目的とするものであつて、この発明の要旨とす
るところは、柱１を挾んで対向するように配置さ
れる梁２，３の断面が、梁長手方向に延長する中
心線に関し左右対称であり、かつ対向する一方の
梁の中間部の断面が下向き開口溝形であると共
に、対向する他方の梁の中間部の断面がＴ形であ
り、前記柱１を挾んで対向する梁２，３の端部
に、梁長手方向に相互に重ならないように対向す
るハンチ４，５を設け、各梁２，３の下部の梁巾
方向の両側に梁長手方向に延長するプレテンシヨ
ン緊張材７を埋設し、各梁２，３におけるハンチ
のない部分を通つて梁全長にわたつて配置される
PC鋼材を、一方の梁におけるハンチのない部分
の梁全長と柱１と他方の梁におけるハンチ部に対
向する端部とにわたつて挿通してハンチ部から突
出させ、次に前記PC鋼材を緊張定着して各梁２，
３と柱１とを結合することを特徴とするプレスト
レストコンクリート部材組立式ラーメン構造体に
おける多スパン梁の構築方法にある。
The purpose of this invention is to provide a method for constructing a multi-span beam in a prestressed concrete member assembled rigid frame structure that can advantageously solve the above-mentioned problems. The cross sections of the beams 2 and 3, which are arranged to face each other with the two beams in between, are symmetrical with respect to a center line extending in the longitudinal direction of the beam, and the cross section of the intermediate portion of one of the opposing beams is in the shape of a downwardly opening groove. In addition, the cross section of the intermediate part of the other opposing beam is T-shaped, and haunches 4 are provided at the ends of the beams 2 and 3 facing each other with the pillar 1 in between, facing each other so as not to overlap each other in the longitudinal direction of the beam. 5, and a pretension tension member 7 extending in the longitudinal direction of the beam is buried on both sides of the beam width direction at the bottom of each beam 2, 3, and extends over the entire length of the beam through the part without haunches in each beam 2, 3. placed in a row
A prestressed steel material is inserted over the entire length of the part of one beam without a haunch, and the end of the column 1 and the other beam opposite the haunch portion to protrude from the haunch portion, and then the prestressed steel material is tensioned. Fix each beam 2,
The present invention provides a method for constructing a multi-span beam in a prestressed concrete member prefabricated rigid-frame structure, which is characterized by connecting column 3 and column 1.
次にこの発明を図示の例によつて詳細に説明す
る。
Next, the present invention will be explained in detail using illustrated examples.
第９図ないし第１１図はこの発明の実施例にお
いて用いられる２種類のプレストレストコンクリ
ート梁のうちの１種類を示すものであつて、梁２
の両端部を除く中間部分に下向き開口溝６が設け
られ、かつその下向き開口溝６の両端部が梁２の
両端の梁巾方向中間部に位置する内側ハンチ４に
なつており、梁２の下部の巾方向両側には梁長手
方向に延長するPC鋼材線からなるプレテンシヨ
ン緊張材７が埋設され、その緊張材７の両端部は
梁２の端部に定着され、さらに梁２の巾方向の両
側には、梁長手方向に貫通する直線状の下部直線
孔８と、梁長手方向に貫通すると共に中間部が下
向きに窪むように彎曲している上部直線孔９とが
設けられ、また梁２の端部における中側ハンチ４
に対応する部分には複数の下部通線孔１０および
複数の上部通線孔１１が設けられ、前記内側ハン
チ４には、下部通線孔１０および上部通線孔１１
の端部において、PC鋼材を定着するための楔式
締付コーン１２が設けられている。 9 to 11 show one of the two types of prestressed concrete beams used in the embodiment of the present invention, and show beam 2.
A downward opening groove 6 is provided in the middle part excluding both ends of the beam 2, and both ends of the downward opening groove 6 form an inner haunch 4 located at the middle part in the beam width direction of both ends of the beam 2. Pretension tension members 7 made of PC steel wires extending in the longitudinal direction of the beam are buried on both sides of the lower part in the width direction, and both ends of the tension members 7 are fixed to the ends of the beam 2, and further in the width direction of the beam 2. On both sides of the beam 2, there are provided a lower linear hole 8 that penetrates in the longitudinal direction of the beam, and an upper linear hole 9 that penetrates in the longitudinal direction of the beam and is curved so that the middle part is depressed downward. middle haunch 4 at the end of
A plurality of lower wire passing holes 10 and a plurality of upper wire passing holes 11 are provided in a portion corresponding to the inner haunch 4.
A wedge-type clamping cone 12 is provided at the end for fixing the prestressing steel material.
第１２図ないし第１４図はこの発明の実施例に
おいて用いられる２種類のプレストレストコンク
リート梁のうちの他の１種類を示すものであつ
て、梁３の両端部を除く中間部分の下部の左右両
側に切欠部１３が形成されてＴ形断面になつてお
り、かつその切欠部１３の両端部が梁３の両端の
梁巾方向両側に位置する外側ハンチ５になつてお
り、梁３の下部の巾方向の両側には梁長手方向に
延長するPC鋼材からなるプレテンシヨン緊張材
７が埋設され、その緊張材７の両端部は梁３の端
部に定着され、さらに梁３の巾方向の両側には、
梁長手方向に貫通する直線状の下部通線孔１４
と、梁長手方向に貫通すると共に中間部が下向き
に窪むように彎曲している上部通線孔１５とが設
けられ、また梁３の端部における外側ハンチ５に
対応する部分には下部通線孔１６および上部通線
孔１７が設けられ、前記外側ハンチ５には、下部
通線孔１６および上部通線孔１７の端部において
楔式締付コーン１２が設けられている。 Figures 12 to 14 show the other one of the two types of prestressed concrete beams used in the embodiment of the present invention, showing both left and right sides of the lower part of the middle part of the beam 3 excluding both ends. A notch 13 is formed in the top of the beam 3 to form a T-shaped cross section, and both ends of the notch 13 form outer haunches 5 located on both ends of the beam 3 in the beam width direction. Pretension tension members 7 made of prestressed steel material extending in the longitudinal direction of the beam are buried on both sides in the width direction, and both ends of the tension members 7 are fixed to the ends of the beam 3, and further on both sides of the beam 3 in the width direction. for,
A straight lower wire hole 14 penetrating in the longitudinal direction of the beam
and an upper wiring hole 15 that penetrates in the longitudinal direction of the beam and is curved so that the middle part is depressed downward, and a lower wiring hole 15 is provided at the end of the beam 3 at a portion corresponding to the outer haunch 5. 16 and an upper wire passage hole 17 are provided, and the outer haunch 5 is provided with a wedge-type tightening cone 12 at the ends of the lower wire passage hole 16 and the upper wire passage hole 17.
前記各梁２，３の断面は梁長手方向に延長する
縦中心線に関し左右対称になつている。 The cross sections of each of the beams 2 and 3 are symmetrical with respect to a longitudinal centerline extending in the longitudinal direction of the beams.
第１図ないし第５図は前記梁２，３を使用して
構築した組立式ラーメン構造体を示し、第６図な
いし第８図は梁２，３の配置状態を示すものであ
つて、梁２と梁３とが交互に直列に並ぶように配
置されすなわち梁２の端部と梁３の端部とがプレ
ストレストコンクリートの柱１を挾んで対向する
ように配置され、梁２の端部の内側ハンチ４と梁
３の端部の外側ハンチ５とは互いに重ならないよ
うに対向し、かつ一本の梁２の下部直線孔８とそ
の両側の柱１の下部通線孔１８と両側の梁３の一
端部の下部通線孔１６とにわたつて下部PC鋼材
１９が挿通され、前記１本の梁２の上部直線孔９
とその両側の柱の上側通線孔２０と両側の梁３の
一端部の上部通線孔１７とにわたつて上部PC鋼
材２１が挿通され、さらに１本の梁３の下部通線
孔１４とその両側の柱１の下部通線孔２２と両側
の梁２の一端部の下部通線孔１０とにわたつて下
部PC鋼材２３が挿通され、前記１本の梁３の上
部通線孔１５とその両側の柱１の上側通線孔２４
と両側の梁２の一端部の上部通線孔１１とにわた
つて上部PC鋼材２５が挿通されている。 Figures 1 to 5 show prefabricated rigid-frame structures constructed using the beams 2 and 3, and Figures 6 to 8 show the arrangement of the beams 2 and 3. 2 and beam 3 are arranged alternately in series, that is, the end of beam 2 and the end of beam 3 are arranged to face each other with the prestressed concrete column 1 in between, and the end of beam 2 is The inner haunch 4 and the outer haunch 5 at the end of the beam 3 face each other so as not to overlap each other, and the lower straight hole 8 of one beam 2, the lower wire hole 18 of the column 1 on both sides thereof, and the beams on both sides. The lower PC steel material 19 is inserted across the lower wire passage hole 16 at one end of the beam 3, and the lower PC steel material 19 is inserted through the upper straight hole 9 of the one beam 2.
The upper PC steel material 21 is inserted through the upper wiring hole 20 of the column on both sides and the upper wiring hole 17 at one end of the beam 3 on both sides, and further through the lower wiring hole 14 of one beam 3. The lower PC steel material 23 is inserted across the lower wiring hole 22 of the column 1 on both sides and the lower wiring hole 10 of one end of the beam 2 on both sides, and the lower PC steel material 23 is inserted through the upper wiring hole 15 of the one beam 3. Upper wiring holes 24 of pillar 1 on both sides thereof
The upper PC steel material 25 is inserted between the upper wire passage hole 11 at one end of the beam 2 on both sides.
各梁２，３の端部と柱１との間に場所打ちコン
クリート目地材２６が充填され、その目地材２６
が硬化したのち、各PC鋼材１９，２１，２３，
２５が緊張されると共に、それらのPC鋼材の端
部が楔式締付コーン１２により定着され、各通線
孔とPC鋼材との間にはモルタルがグラウトされ
る。 A cast-in-place concrete joint material 26 is filled between the end of each beam 2, 3 and the column 1, and the joint material 26
After hardening, each PC steel material 19, 21, 23,
25 are tensioned, the ends of these prestressing steel members are fixed by wedge-type tightening cones 12, and mortar is grouted between each wire passage hole and the prestressing steel members.
第１５図は接合される梁２，３の中間部の断面
形状の変形例を示すものであつて、一方の断面台
形梁２における中間部に下向き開口溝が形成され
ると共に、他方の断面台形梁３の下部の左右両側
に切欠部が形成されて断面Ｔ形になつている。 FIG. 15 shows a modification of the cross-sectional shape of the intermediate part of the beams 2 and 3 to be joined, in which a downward opening groove is formed in the intermediate part of one of the beams 2 with a trapezoidal cross-section, and the other beam has a trapezoidal cross-section. Cutouts are formed on both left and right sides of the lower portion of the beam 3, forming a T-shaped cross section.
この発明によれば、柱１を挾んで対向するよう
に配置される梁２，３の断面が、梁長手方向に延
長する中心線に関し左右対称であり、かつ対向す
る一方の梁の中間部の断面が下向き開口溝形であ
ると共に、対向する他方の梁の中間部の断面がＴ
形であり、前記柱１を挾んで対向する梁２，３の
端部に、梁長手方向に相互に重ならないように対
向するハンチ４，５を設け、各梁２，３の下部の
梁巾方向の両側に梁長手方向に延長するプレテン
シヨン緊張材７を埋設し、各梁２，３におけるハ
ンチのない部分を通つて梁全長にわたつて配置さ
れるPC鋼材を、一方の梁におけるハンチのない
部分の梁全長と柱１と他方の梁におけるハンチ部
に対向する端部とにわたつて挿通してハンチ部か
ら突出させ、次に前記PC鋼材を緊張定着して各
梁２，３と柱１とを結合するので、各梁２，３の
端部のハンチ４，５を利用してPC鋼材の端部を
定着することができ、そのための多スパンの組立
式ラーメン構造体における各スパンごとにPC鋼
材による梁の圧着接合を容易に行なうことがで
き、したがつて、連続梁の組立順序を自由に選択
することができ、かつ２方向多スパン連続梁を任
意のスパンから自由にかつ容易に施工することが
でき、さらに圧着接合用PC鋼材の長さをスパン
長さより長くできるので、確実な圧着接合を行な
うことができる。
According to this invention, the cross sections of the beams 2 and 3, which are arranged to face each other with the column 1 in between, are symmetrical with respect to a center line extending in the longitudinal direction of the beams, and the cross sections of the beams 2 and 3 are symmetrical with respect to the center line extending in the longitudinal direction of the beams, and The cross section is a downward opening groove shape, and the cross section of the middle part of the other opposing beam is T.
At the ends of the beams 2 and 3 facing each other with the pillar 1 in between, haunches 4 and 5 are provided facing each other so as not to overlap each other in the longitudinal direction of the beams, and the width of the lower part of each beam 2 and 3 is Pretension tension members 7 extending in the longitudinal direction of the beam are buried on both sides of the beam, and pre-tensioned steel members placed over the entire length of each beam 2 and 3 are placed along the haunch of one beam. The prestressing steel material is then tension-fixed to connect each beam 2 and 3 to the column. 1, the ends of the prestressing steel can be anchored using the corbels 4 and 5 at the ends of the beams 2 and 3. Beams made of prestressed steel can be easily crimped and joined, and therefore the assembly order of continuous beams can be freely selected, and two-way multi-span continuous beams can be freely and easily joined from any span. Furthermore, since the length of the prestressing steel material for crimp joining can be made longer than the span length, reliable crimp joining can be performed.
また特にこの発明の場合は、梁２，３の断面が
梁長手方向に延長する中心線に関し左右対称であ
るので、梁２，３の製造後に、その梁２，３が捻
れ変形することはなく、そのため各梁２，３を安
定状態で架設することができ、さらに各梁２，３
の下部の巾方向の両側に梁長手方向に延長するプ
レテンシヨン緊張材７が埋設されているので、梁
２，３を輸送中に破損しないように補強すること
ができる等の効果が得られる。 Moreover, especially in the case of this invention, since the cross sections of the beams 2 and 3 are symmetrical with respect to the center line extending in the longitudinal direction of the beam, the beams 2 and 3 will not be twisted and deformed after they are manufactured. Therefore, each beam 2, 3 can be constructed in a stable state, and each beam 2, 3 can be constructed in a stable state.
Since the pretension tension members 7 extending in the longitudinal direction of the beam are embedded on both sides of the width direction of the lower part of the beam, effects such as being able to reinforce the beams 2 and 3 so that they will not be damaged during transportation can be obtained.
図面はこの発明の実施例を示すものであつて、
第１図はこの発明の方法によつて構築されたPC
部材組立式ラーメンの横断平面図、第２図は第１
図のＡ−Ａ線断面図、第３図は第１図のＢ−Ｂ線
断面図、第４図は第２図における左側の柱に対す
る梁接合部を詳細に示す拡大縦断側面図、第５図
は第３図における左側の柱に対する梁接合部を詳
細に示す拡大縦断側面図である。第６図は中間断
面Ｔ形梁と中間断面下向き開口溝形梁と柱との配
置状態を示す横断平面図、第７図は第６図のＣ−
Ｃ線断面図、第８図は第６図のＤ−Ｄ線拡大断面
図である。第９図は中間断面下向き開口溝形梁の
縦断側面図、第１０図は第９図のＥ−Ｅ線断面
図、第１１図は第９図のＦ−Ｆ線断面図、第１２
図は中間断面Ｔ形梁の縦断側面図、第１３図は第
１２図のＧ−Ｇ線断面図、第１４図は第１２図の
Ｈ−Ｈ線断面図である。第１５図は対向して接合
される各梁の中間部の断面形状の例を示す図であ
る。
図において、１は柱、２および３は梁、４およ
び５はハンチ、７はプレテンシヨン緊張材、１２
は楔式締付コーン、１９は下部PC鋼材、２１は
上部PC鋼材、２６は場所打ちコンクリート目地
材である。
The drawings show embodiments of the invention,
Figure 1 shows a PC constructed by the method of this invention.
A cross-sectional plan view of a parts-assembly type Ramen, Figure 2 is the 1st
3 is a sectional view taken along line BB in FIG. The figure is an enlarged vertical sectional side view showing in detail the beam joint to the left column in FIG. 3. Fig. 6 is a cross-sectional plan view showing the arrangement of the intermediate section T-shaped beam, the intermediate section downward opening channel beam, and the column, and Fig. 7 is the C--
A sectional view taken along the line C, and FIG. 8 is an enlarged sectional view taken along the line D-D in FIG. 6. Fig. 9 is a vertical side view of a downwardly opening channel beam in the intermediate cross section, Fig. 10 is a sectional view taken along the line E-E in Fig. 9, Fig. 11 is a sectional view taken along the line F-F in Fig. 9, and Fig. 12 is a sectional view taken along the line E-E in Fig. 9.
13 is a sectional view taken along line GG in FIG. 12, and FIG. 14 is a sectional view taken along line HH in FIG. 12. FIG. 15 is a diagram showing an example of the cross-sectional shape of the intermediate portion of each beam that is joined to face each other. In the figure, 1 is a column, 2 and 3 are beams, 4 and 5 are corbels, 7 is a pretension tendon, and 12
19 is a wedge-type tightening cone, 19 is a lower PC steel material, 21 is an upper PC steel material, and 26 is a cast-in-place concrete joint material.
Claims (1)
２，３の断面が、梁長手方向に延長する中心線に
関し左右対称であり、かつ対向する一方の梁の中
間部の断面が下向き開口溝形であると共に、対向
する他方の梁の中間部の断面がＴ形であり、前記
柱１を挾んで対向する梁２，３の端部に、梁長手
方向に相互に重ならないように対向するハンチ
４，５を設け、各梁２，３の下部の梁巾方向の両
側に梁長手方向に延長するプレテンシヨン緊張材
７を埋設し、各梁２，３におけるハンチのない部
分を通つて梁全長にわたつて配置されるPC鋼材
を、一方の梁におけるハンチのない部分の梁全長
と柱１と他方の梁におけるハンチ部に対向する端
部とにわたつて挿通してハンチ部から突出させ、
次に前記PC鋼材を緊張定着して各梁２，３と柱
１とを結合することを特徴とするプレストレスト
コンクリート部材組立式ラーメン構造体における
多スパン梁の構築方法。1 The cross sections of the beams 2 and 3, which are arranged to face each other with the pillar 1 in between, are symmetrical with respect to the center line extending in the longitudinal direction of the beam, and the cross section of the middle part of one of the opposing beams is a downward opening groove. In addition, the cross section of the middle part of the other opposing beam is T-shaped, and the ends of the beams 2 and 3, which are opposite to each other with the pillar 1 in between, are opposed to each other in the longitudinal direction of the beams so as not to overlap each other. Corbels 4 and 5 are provided, and pretension tension members 7 extending in the longitudinal direction of the beams are buried on both sides of the beam width direction at the bottom of each beam 2 and 3, and the beams are inserted through the portions of each beam 2 and 3 without haunches. A PC steel material arranged over the entire length is inserted across the entire length of the part of one beam without the haunch, and the end of the column 1 and the other beam opposite the haunch part, so as to protrude from the haunch part,
A method for constructing a multi-span beam in a prestressed concrete member assembly type rigid-frame structure, characterized in that the prestressed concrete members are assembled into a rigid frame structure, the method comprising: connecting each beam 2, 3 to the column 1 by tension-fixing the prestressed concrete steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14139784A JPS6121241A (en) | 1984-07-10 | 1984-07-10 | Construction of multi-spun beam in prestressed concrete member assembling type lamen structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14139784A JPS6121241A (en) | 1984-07-10 | 1984-07-10 | Construction of multi-spun beam in prestressed concrete member assembling type lamen structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6121241A JPS6121241A (en) | 1986-01-29 |
| JPH0437894B2 true JPH0437894B2 (en) | 1992-06-22 |
Family
ID=15291043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14139784A Granted JPS6121241A (en) | 1984-07-10 | 1984-07-10 | Construction of multi-spun beam in prestressed concrete member assembling type lamen structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6121241A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63142137A (en) * | 1986-12-02 | 1988-06-14 | 清水建設株式会社 | How to wire tendons |
| IT1247175B (en) * | 1991-04-19 | 1994-12-12 | Fidia Spa | PROCEDURE FOR PURIFICATION OF HYALURONIC ACID AND FRACTION OF PURE HYALURONIC ACID FOR OPHTHALMIC USE. |
| JP2751694B2 (en) * | 1991-11-26 | 1998-05-18 | 鹿島建設株式会社 | Joint structure of prestressed concrete beam and steel tube concrete column |
| JP5024617B2 (en) * | 2007-11-13 | 2012-09-12 | 清水建設株式会社 | Prestressed concrete beam and its construction method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6110676A (en) * | 1984-06-26 | 1986-01-18 | フドウ建研株式会社 | Continuous construction method of pc beam and pc beam used therein |
-
1984
- 1984-07-10 JP JP14139784A patent/JPS6121241A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6121241A (en) | 1986-01-29 |
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