JPH0650010B2 - Precast version - Google Patents

Precast version

Info

Publication number
JPH0650010B2
JPH0650010B2 JP23423789A JP23423789A JPH0650010B2 JP H0650010 B2 JPH0650010 B2 JP H0650010B2 JP 23423789 A JP23423789 A JP 23423789A JP 23423789 A JP23423789 A JP 23423789A JP H0650010 B2 JPH0650010 B2 JP H0650010B2
Authority
JP
Japan
Prior art keywords
plate
floor slab
concrete
rib
flat portion
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
Application number
JP23423789A
Other languages
Japanese (ja)
Other versions
JPH02120446A (en
Inventor
和彦 磯田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shimizu Corp
Original Assignee
Shimizu Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shimizu Corp filed Critical Shimizu Corp
Priority to JP23423789A priority Critical patent/JPH0650010B2/en
Publication of JPH02120446A publication Critical patent/JPH02120446A/en
Publication of JPH0650010B2 publication Critical patent/JPH0650010B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Description

【発明の詳細な説明】 [産業上の利用分野] 本発明は、上部にコンクリートを打設することにより床
版をなすプレキャスト製の床版に関するものである。
TECHNICAL FIELD The present invention relates to a precast floor slab that forms a floor slab by placing concrete on the upper part of the floor slab.

[従来の技術] 従来一般に知られている床版として、下部がプレキャス
ト版(以下、PC版と略す)によって構成されるととも
に、上部が現場打ちされたコンクリートによって構成さ
れたものがある。このような床版は、通常次のような方
法によって構築される。すなわち、工場あるいは構築現
場近くでPC版を製作し、この製作したPC版を床版構
築位置にセットし、次いでセットしたPC版を打込み型
枠として利用し、その上部にコンクリートを打設する方
法である。
[Prior Art] As a floor slab generally known in the past, there is a floor slab whose lower part is made of a precast plate (hereinafter abbreviated as PC version) and whose upper part is made of cast concrete. Such a floor slab is usually constructed by the following method. That is, a method of manufacturing a PC plate near a factory or a construction site, setting the manufactured PC plate in a floor slab building position, then using the set PC plate as a driving form, and placing concrete on the upper part thereof. Is.

[発明が解決しようとする課題] ところで、上記のような床版の構築方法にあっては、型
枠の撤回作業を行う必要がなく、省力化および工期の短
縮が図れる等の利点を有する反面、PC版と後打ちされ
る上部コンクリートとの打継き部分の結合強度が弱くこ
の部分の補強方法が未解決問題として残されていた。ま
た上記床版の構築方法においてPC版の面外剛性を高め
ることは、その分PC版支持用の支保工を削減すること
ができ、より一層省力化および工期短縮が図れる等の効
果が期待できる。このため、上記床版の構築方法におい
ては、PC版の面外剛性を高めることが望まれていた。
[Problems to be Solved by the Invention] By the way, the floor slab construction method as described above has an advantage that there is no need to perform the work of retracting the formwork, labor saving, and shortening of the construction period. Since the joint strength between the PC plate and the upper concrete to be post-cast is weak, the method of reinforcing this part remains an unsolved problem. Further, by increasing the out-of-plane rigidity of the PC plate in the method of constructing the floor slab, it is possible to reduce the amount of supporting work for supporting the PC plate by that amount, and it is expected that further labor saving and shortening of the construction period can be expected. . For this reason, in the floor slab construction method, it has been desired to increase the out-of-plane rigidity of the PC plate.

本発明は上記事情に鑑みてなされたもので、PC版と後
打ちされる上部コンクリートとの結合強度を高めること
ができ、また大重量とすることなくPC版の面外剛性を
高めてPC版支持用の支保工を削減し得、より一層省力
化および工期短縮を図ることができるPC版を提供する
ことを目的とする。
The present invention has been made in view of the above circumstances, and it is possible to increase the bonding strength between a PC plate and an upper concrete to be post-cast, and to increase the out-of-plane rigidity of the PC plate without increasing the weight thereof. It is an object of the present invention to provide a PC plate which can reduce supporting work for support and can further save labor and shorten the construction period.

さらに、従来技術に比べ施工時における剛性を高め、ス
ラブの下方へ撓みを軽減又は防止することができるPC
版を提供することができる。
Further, compared to the prior art, the PC at the time of construction can be increased in rigidity and the bending of the slab can be reduced or prevented.
Versions can be provided.

[課題を解決するための手段] 本発明の要旨は、平坦部と、当該平坦部の上面に突出す
るように設けたリブ部とを備え、架設状態において当該
平坦部及び当該リブ部の上部にコンクリートを打設する
ことにより床版を構成するためのプレキャスト版であっ
て、前記リブ部は平面視において碁盤目状をなし、前記
平坦部の内部には、緊張材を前記リブ部と平行となるよ
うに設けたことを特徴としたプレキャスト版に存在す
る。
[Means for Solving the Problem] The gist of the present invention is to provide a flat portion and a rib portion provided so as to project on the upper surface of the flat portion, and to provide a flat portion and an upper portion of the rib portion in an erected state. A precast plate for constructing a floor slab by placing concrete, wherein the rib portion has a grid shape in a plan view, and inside the flat portion, a tension member is parallel to the rib portion. It exists in the precast version, which is characterized by being provided as follows.

[作用] リブ部は、PC版上面の表面積を大きくする。したがっ
て、後打ちコンクリートととの結合強度を高めることが
できる。
[Operation] The rib portion increases the surface area of the upper surface of the PC plate. Therefore, the bonding strength with the post-cast concrete can be increased.

平坦部内に設けた緊張材は、引張応力を負担するので、
PC版の面外剛性を高めることができる。その結果、P
C版支持用の支保工を削減することができる。
Since the tension material provided in the flat portion bears tensile stress,
The out-of-plane rigidity of the PC plate can be increased. As a result, P
It is possible to reduce the support work for supporting the C plate.

緊張材はPC版の面外剛性を高めることができるので、
従来技術に比べ、スラブの下方への撓みを軽減又は防止
することができる。
Since the tension material can increase the out-of-plane rigidity of the PC plate,
It is possible to reduce or prevent the downward bending of the slab as compared with the related art.

[実施例] 以下、本発明の一実施例を第1図に用いて説明する。第
1図は本実施例にかかるPC版を示している。ただし、
本実施例に記載されている構成部品の形状、その相対配
置などは、特に特定的な記載がないかぎりは、この発明
の範囲をそれらのみに限定する趣旨のもではなく、単な
る説明例にすぎない。
[Embodiment] An embodiment of the present invention will be described below with reference to FIG. FIG. 1 shows a PC version according to this embodiment. However,
Unless otherwise specified, the shapes of the components described in this embodiment, their relative arrangements, and the like are not intended to limit the scope of the present invention to them, but merely illustrative examples. Absent.

この図で示すPC版21は、平坦部22の上側に基盤目
状に突出するリブ部23が設けられるとともに、平坦部
22内に緊張材を挿入するシース管24が基盤目状に埋
設された構造となっている。
In the PC plate 21 shown in this figure, a rib portion 23 projecting like a base is provided above the flat portion 22, and a sheath tube 24 into which a tension material is inserted is embedded in the flat portion 22 in the shape of a base. It has a structure.

第2図、第3図は床版がS構造の梁Hの間に架け渡さ
れて配設される場合の例を示している。本例において
は、梁Hとなる部分に予めH型鋼31が配され、この
H型鋼31の上部にこれらをまたぐようにPC版32が
配される。このとき、PC版32は高い剛性を有してい
るため同PC版32の中間部分をサポート等によって支
持する必要がない。
2 and 3 show an example in which the floor slab is arranged so as to be bridged between the beams H 2 of the S structure. In this example, the H-shaped steel 31 is arranged in advance in the portion to be the beam H 2, and the PC plate 32 is arranged above the H-shaped steel 31 so as to straddle them. At this time, since the PC plate 32 has high rigidity, it is not necessary to support the intermediate portion of the PC plate 32 with a support or the like.

第4図〜第6図は床版がSRC構造の梁Hの間に架け
渡されて配設される場合の例を示している。本例におい
ては、梁Hとなる部分に予めH型鋼41が配される
が、このH型鋼41は同H型鋼41の長さ方向に所定間
隔をおいて補強版42が配され、また同補強版42によ
って補強された個所の上部が幅広とされている。一方、
PC版43には周縁部所定個所に横方向に突出する突出
部44が形成されており、この突出部44を前記H型鋼
の幅広とされる部分の上部に重ね合わせることにより、
PC版43を所定位置に容易にセットできるようになっ
ている。そしてこのようなセットしたPC版43の上部
およびH型鋼41廻りにコンクリートを打設し、これに
より梁Hと一体になった床版を得ることができる。
4 to 6 show an example in which the floor slab is arranged so as to be bridged between the beams H 3 of the SRC structure. In this example, the H-shaped steel 41 is arranged in advance in the portion to be the beam H 3 , but the H-shaped steel 41 is provided with the reinforcing plate 42 at a predetermined interval in the longitudinal direction of the H-shaped steel 41, and The upper portion of the portion reinforced by the reinforcing plate 42 is wide. on the other hand,
The PC plate 43 is formed with a protruding portion 44 protruding laterally at a predetermined position on the peripheral portion, and by overlapping this protruding portion 44 with the upper portion of the wide portion of the H-shaped steel,
The PC plate 43 can be easily set in a predetermined position. Then, concrete is placed around the upper portion of the set PC plate 43 and around the H-shaped steel 41, whereby a floor slab integrated with the beam H 3 can be obtained.

なお上記実施例においては、PC版にプレストレスを付
与する方法としてポストテンション方式を用いている
が、これに限られることなくプレテンション方式を用い
てもよい。
Although the post-tension method is used as a method of applying pre-stress to the PC plate in the above embodiment, the pre-tension method is not limited to this and may be used.

[発明の効果] 以上説明したように本発明は、プレストレスを導入され
た平坦部とこの平坦部の一面に突出して設けられたリブ
部とを有するPC版を、前記リブ部が上側となるように
床版構築現場にセットし、該PC版を打込み型枠として
利用し、その上部にコンクリートを打設して床版を構築
する構成であるから、 リブ部が打継ぎキーの役目を果すことおよびPC版と
後打ちコンクリートとの結合面積が大となることとによ
って、PC版と後打ちコンクリートとの結合強度が大と
なりその結果床版の剛性が増す。
[Effects of the Invention] As described above, the present invention provides a PC plate having a flat portion to which prestress is introduced and a rib portion provided on one surface of the flat portion so that the rib portion is on the upper side. As described above, it is set on the floor slab construction site, the PC slab is used as a driving form, and concrete is placed on the top of the slab to construct the slab, so that the rib portion serves as a splicing key. By virtue of the fact that the bonding area between the PC plate and the post-cast concrete becomes large, the bonding strength between the PC plate and the post-cast concrete becomes large, and as a result, the rigidity of the floor slab increases.

プレストレスの導入およびリブ部の作用によってPC
版自体の面外剛性が高まり、同PC版を支持するための
支保工の削減や省略を図ることができ、より一層の省力
化、工期短縮が実現できる。
PC by the introduction of prestress and the action of ribs
The out-of-plane rigidity of the plate itself is increased, and the support work for supporting the PC plate can be reduced or omitted, and further labor saving and shortening of the construction period can be realized.

PC版を工場あるいは現場近くの空地等構築現場以外
の所でつくることができ、製作およびプレストレスの導
入が容易となる。
The PC version can be made at a place other than the construction site such as a factory or an open space near the site, which facilitates production and introduction of prestress.

プレストレスを導入した時点でPC版は一旦わん曲さ
れるが、その後その上部に打設される後打ちコンクリー
トの荷重によってわん曲がキャンセルされ、フラットな
形状となる。
The PC plate is bent once when the prestress is introduced, but the bending is canceled by the load of the post-casting concrete placed on the top of the PC plate, and the PC plate becomes a flat shape.

プレストレスの導入により床版自体の剛性を高めるこ
とができ、ひび割れ等の不具合が生じるのを未然に防止
することができる。
The introduction of prestress can increase the rigidity of the floor slab itself and prevent problems such as cracks from occurring.

床版をコンクリート梁間にまたがった状態で配設する
場合、コンクリート梁と一体構造とすることができ、強
度的に優れた床版を構築し得る。
When the floor slab is arranged in a state of straddling between the concrete beams, the floor slab can be integrated with the concrete beam, and the floor slab excellent in strength can be constructed.

PC版のリブ部成を所定高さに定めることにより、後
打ちコンクリート中に埋設される上端鉄筋用スペーサを
省くことができる。
By setting the rib formation of the PC plate to a predetermined height, it is possible to omit the spacer for the upper rebar embedded in the post-cast concrete.

従来技術に比べ施工時における剛性を高め、スラブの
下方へ撓みを軽減又は防止することができる。
Rigidity at the time of construction can be enhanced as compared with the prior art, and bending of the slab can be reduced or prevented.

等の効果が得られる。And so on.

【図面の簡単な説明】[Brief description of drawings]

第1図乃至第6図は本発明にかかる実施例を示すもので
あり、第1図はPC版の斜視図、第2図および第3図は
S構造の梁間に架け渡される床版の構築方法を説明する
ために示すもので、第2図は平面図、第3図は第2図の
XII−XII線に沿う断面図、第4図乃至第6図はSRC構
造の梁間に架け渡される床版の構築方法を説明するため
に示すもので、第4図は平面図、第5図は第4図のXIV
−XIV線に沿う断面図、第6図は第5図のXV円部の拡
大図である。 21……PC版、22……平坦部、23……リブ部、2
4……シース管、H……梁、32……PC版、H
…梁、43……PC版。
1 to 6 show an embodiment according to the present invention. FIG. 1 is a perspective view of a PC slab, and FIGS. 2 and 3 are constructions of floor slabs bridged between beams of S structure. FIG. 2 is a plan view, FIG. 3 is a plan view, and FIG.
Sectional views along the line XII-XII, FIGS. 4 to 6 are provided for explaining a method of constructing a floor slab that is bridged between beams of an SRC structure. FIG. 4 is a plan view, and FIG. XIV in Figure 4
FIG. 6 is a sectional view taken along line -XIV, and FIG. 6 is an enlarged view of the XV circle portion in FIG. 21 ... PC version, 22 ... flat part, 23 ... rib part, 2
4 ...... sheath tube, H 2 ...... Beams, 32 ...... PC version, H 3 ...
… Liang, 43… PC version.

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】平坦部と、当該平坦部の上面に突出するよ
うに設けたリブ部とを備え、架設状態において当該平坦
部及び当該リブ部の上部にコンクリートを打設すること
により床版を構成するためのプレキャスト版であって、
前記リブ部は平面視において碁盤目状をなし、前記平坦
部の内部には、緊張材を前記リブ部と平行となるように
設けたことを特徴としたプレキャスト版。
1. A floor slab comprising a flat portion and a rib portion provided so as to project from an upper surface of the flat portion, and by placing concrete on the flat portion and the upper portion of the rib portion in a erected state. A precast version to compose,
The precast plate, wherein the rib portion has a grid shape in a plan view, and a tension member is provided inside the flat portion so as to be parallel to the rib portion.
JP23423789A 1989-09-08 1989-09-08 Precast version Expired - Lifetime JPH0650010B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23423789A JPH0650010B2 (en) 1989-09-08 1989-09-08 Precast version

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23423789A JPH0650010B2 (en) 1989-09-08 1989-09-08 Precast version

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP59033941A Division JPH0478771B2 (en) 1984-02-24 1984-02-24

Publications (2)

Publication Number Publication Date
JPH02120446A JPH02120446A (en) 1990-05-08
JPH0650010B2 true JPH0650010B2 (en) 1994-06-29

Family

ID=16967834

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23423789A Expired - Lifetime JPH0650010B2 (en) 1989-09-08 1989-09-08 Precast version

Country Status (1)

Country Link
JP (1) JPH0650010B2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2748709B2 (en) * 1991-02-27 1998-05-13 鹿島建設株式会社 Prestressed concrete composite slab
JP2729718B2 (en) * 1991-12-06 1998-03-18 昭和電工株式会社 Concrete construction method using surface material
KR100760393B1 (en) * 2006-09-29 2007-09-27 주식회사삼환까뮤 Precast concrete panel and method for constructing a slab using the panel

Also Published As

Publication number Publication date
JPH02120446A (en) 1990-05-08

Similar Documents

Publication Publication Date Title
US3918222A (en) Prefabricated modular flooring and roofing system
KR101899442B1 (en) PC slab with inclined end plate
KR100760393B1 (en) Precast concrete panel and method for constructing a slab using the panel
JP2522714B2 (en) Construction method of building frame
JP2001342679A (en) CONNECTING METHOD FOR PCa BEAM MEMBER AT COLUMN/BEAM JUNCTION AND PCa BEAM MEMBER FOR IT
JPH0650010B2 (en) Precast version
KR101482523B1 (en) Nodular Box Girder, and Nodular Box Girder Bridge and Constructing Method thereof
JP2758208B2 (en) Joint method between column and steel reinforced concrete beam
JPH08144425A (en) Prefabricated member of mixed structure and construction method of mixed structure
JP2000104336A (en) Joint structure of pile and superstructure building frame in structure, and method for constructing superstructure building frame at upper section of pile
JP2757032B2 (en) Construction method of underground building with pillars with capital by reverse hitting method
JPH0742721B2 (en) Reinforced concrete column / beam construction method using precast beam members
JP3002026B2 (en) Structure of residential continuous foundation
JP2972955B2 (en) Column and beam joining method and its structure
JP2518568Y2 (en) Connection structure of steel beams to concrete columns
JP3189081B2 (en) Manufacturing method of void type full precast two-way slab and void type full precast slab
JPH0742755B2 (en) Construction method of PC synthetic flat slab
JPH0781355B2 (en) Construction method of joist slab using precast concrete girder
JP2002242348A (en) Precast concrete slab, and slab and construction method therefor
JPH07268883A (en) Method of construction of footing section using precast footing beam
KR920002117B1 (en) Construction of precast reinforced concrete structure
JPH05179700A (en) Jointing method of precast girder to precast beam
JPH07197566A (en) Joining method for precast concrete wall column member
JPH07139068A (en) Floor board with semi-pc beam
JPH084196A (en) Panel for building