JP3637455B2 - Basic construction method for equipment installation - Google Patents

Basic construction method for equipment installation Download PDF

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Publication number
JP3637455B2
JP3637455B2 JP28290494A JP28290494A JP3637455B2 JP 3637455 B2 JP3637455 B2 JP 3637455B2 JP 28290494 A JP28290494 A JP 28290494A JP 28290494 A JP28290494 A JP 28290494A JP 3637455 B2 JP3637455 B2 JP 3637455B2
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Japan
Prior art keywords
wing
metal fitting
cylindrical
embedded
foundation
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Expired - Fee Related
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JP28290494A
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Japanese (ja)
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JPH08120688A (en
Inventor
厚 森
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Toshiba Plant Systems and Services Corp
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Toshiba Plant Systems and Services Corp
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Priority to JP28290494A priority Critical patent/JP3637455B2/en
Publication of JPH08120688A publication Critical patent/JPH08120688A/en
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Description

【０００１】
【産業上の利用分野】
本発明は、発電プラント等の各種大型機器を基礎ボルトを介して基礎コンクリート上面に設置するための基礎工法に係り、特にその基礎の製作が容易であると共に、機器の設置のし易い工法を提供するものである。
【０００２】
【従来の技術】
火力発電プラントにおいて大型の各種回転機器設置用基礎ボルトは、図４〜図６に示す如く筒状部１の両端にボルト孔を有する閉塞板９を配置し、それらに基礎ボルト14を貫通すると共に、その下端にナット13を螺着して埋込金具を構成する。そしてこの埋込金具をコンクリート基礎形成時に埋設し、基礎上面12から上方に基礎ボルト14の上部が露出するように配置する。次いで、基礎ボルト14の近傍をはつり、そこにグラウト材を充填してパッカー16を形成する。そしてそのパッカー16上に適宜厚さの高さ調整板15を複数枚介装し、機器のフランジ部７をそのパッカー16上に載置し、その上面にナット13を螺着締結して機器を基礎上面12上に固定していた。
【０００３】
【発明が解決しようとする課題】
従来の機器設置方法は機器設置用の基礎ボルト14が基礎上面12上に突出しているため、機器を所定位置に引き込む際に、その基礎ボルト14が邪魔となり機器の設置作業が面倒であると共に、その引き込みの際に基礎ボルト14の保護作業その他が必要となり、機器設置の工数が増加する欠点があった。
又、機器を所定レベルに設置するためには基礎上面12上をはつり、そこにパッカーを設置する必要があり、その作業に多くの時間と労力を要していた。
そこで本発明は上記の問題点を取り除くため、次の方法をとる。
【０００４】
【課題を解決するための手段】
本発明の機器設置用基礎工法は、一端側の閉塞された筒状部１を有し、ネジ穴２が形成されたナット３を前記筒状部１の内部上端に溶接すると共に、
上面に平面４ａを有する一対の翼部４が突出するように、前記筒状部１の上端外周にアングル型材またはＴ型材等の型材を溶接して、埋設用金具５を予め製作する工程と、
前記埋設用金具５を支持体６に着脱自在に支持させて、前記筒状部１および翼部４の立ち下がり部４ｂを機器設置用基礎部に埋設すると共に、前記翼部４の前記平面４ａを露出させる工程と、
を具備し、前記翼部４の前記平面４ａに機器の設置用フランジ部７を載置し、ボルト８を介して前記埋設用金具５にそのフランジ部７が締結固定されるように構成したことを特徴とする。
又、本発明の好ましい実施態様は、外周が筒状部１の直径よりも充分大きい閉塞板９をその筒状部１の下端に固定する。
さらには、翼部４の上面に支持体６との締結用ネジ穴10を設ける。
又、筒状部１上端部に欠切部11を形成し、その欠切部11においてナット３の外周と筒状部１とを溶接固定する。
【０００５】
【実施例】
次に、図面に基づいて本発明の実施例につき説明する。
図１は本発明の基礎工法を実施するために予め製作される埋設用金具５の斜視図である。又、図２は同埋設用金具５を基礎コンクリート上に埋設するための支持構造の一例を示す。そして図３は、本基礎工法により埋設された埋設用金具５及び機器のフランジ部７の取付け状態を示す縦断面図である。
この実施例における基礎工法は、予め埋設用金具５を製作しておく。この埋設用金具５は、筒状部１と翼部４とナット３及び閉塞板９とを有する。筒状部１は、その上端部外周の二箇所にナット３溶接用の欠切部11がＵ字状に形成されている。そして、筒状部１の上端部内面にネジ穴２が形成されたナット３を嵌着し、その周縁部と筒状部１内面とを溶接すると共に、ナット３外面と欠切部11の縁部とを溶接する。又、筒状部１上端にこの実施例では型鋼のアングル材からなる翼部４の一端を溶接固定する。このアングル材の一端面は、筒状部１の外周に整合する形状に予め形成しておく。又、アングル材の一方の上面にはネジ穴10が穿設される。そして、アングル材の平面４ａを筒状部１上面に一致させると共に、立ち下がり部４ｂを下方に向ける。そして、平面４ａの端部及び立ち下がり部４ｂの端部と筒状部１外周との間を溶接固定するものである。なお、アングル材の代わりにＴ型鋼やＨ型鋼等の他の型材を用いることもできる。
【０００６】
次に、筒状部１の下端にはその外直径よりも充分大きな閉塞板９が溶接固定されて埋設用金具５が完成する。このような埋設用金具５は一例として、門型に立設された支持体６の中央部に着脱自在に且つ確固に保持される。この支持体６はアングル材で形成されその上端の下側平面と翼部４上面とを当接し、ボルト８を支持体６のボルト孔に挿通し、そのボルト８の先端部を埋設用金具５のナット３に螺着締結する。なお、小ボルト17を翼部４のネジ穴10に締結すれば、支持体６の平面と翼部４の平面とを正確に整合することが可能となる。
このようにして支持された埋設用金具５の筒状部１及び翼部４の立ち下がり部４ｂは、図３の如く基礎コンクリートに埋設固定される。そして、その基礎上面12が翼部４の平面４ａの下面側に一致する。次いで、支持体６の脚部を切断すると共に、ボルト８及び小ボルト17を取り除き、翼部４上面側は突出部のない状態に維持される。
【０００７】
そこで、次に必要な機器を基礎上面12上に引込み、そのフランジ部７のボルト孔を埋設用金具５のナット３に整合させる。そして、フランジ部７と翼部４との間に適宜厚さの高さ調整板15を介装し、レベル調整をして、フランジ部７を貫通したボルト８の軸部を埋設用金具５のナット３に螺着締結することにより、機器の据付けを完了する。
なお、埋設用金具５の下端に設けられた閉塞板９は、筒状部１よりも充分外方に突出されているため、埋設用金具５が上方に抜け出ることを防止できる。
【０００８】
【発明の作用・効果】
本発明の機器設置用基礎工法は、筒状部１及び翼部４の立ち下がり部４ｂを機器設置用基礎部に埋設すると共に、翼部４の平面４ａを露出させるものである。そしてその平面４ａに機器のフランジ部７を載置し、ボルト８を筒状部１のナット３に締結固定するように構成したものである。従って従来の機器設置方法の如く、基礎上面12をはつり、そこにパッカーを設置する必要かない。それと共に、ナット３付の筒状部１で埋設用金具５を構成したため、従来の如く基礎上面12上に基礎ボルトが突出して、それが機器の引き込み及び位置決めの際に邪魔になる虞がなく、機器の設置を容易迅速に行い得る。
【図面の簡単な説明】
【図１】本発明の基礎工法を実施するために予め製作される埋設用金具５の斜視図。
【図２】同埋設用金具５を基礎コンクリート上に埋設するための支持構造の一例を示す。
【図３】本基礎工法により埋設された埋設用金具５及び機器のフランジ部７の取付け状態を示す縦断面図。
【図４】従来の基礎工法に用いられる埋込金具の一部縦断面立面図。
【図５】同埋込金具を基礎コンクリート上に埋設した状態を示す縦断面図。
【図６】同埋込金具に機器のフランジ部７を取り付けた状態の縦断面図。
【符号の説明】
１ 筒状部
２ ネジ穴
３ ナット
４ 翼部
４ａ 平面
４ｂ 立ち下がり部
５ 埋設用金具
６ 支持体
７ フランジ部
８ ボルト
９ 閉塞板
10 ネジ穴
11 欠切部
12 基礎上面
13 ナット
14 基礎ボルト
15 高さ調整板
16 パッカー
17 小ボルト[0001]
[Industrial application fields]
The present invention relates to a foundation method for installing various large-scale equipment such as a power plant on the upper surface of foundation concrete via foundation bolts, and in particular, provides a construction method in which the foundation is easy to manufacture and the equipment is easy to install. To do.
[0002]
[Prior art]
As shown in FIGS. 4 to 6, in the thermal power plant, large-sized foundation bolts for installing various rotary devices are arranged with a closing plate 9 having bolt holes at both ends of the cylindrical portion 1 and penetrating the foundation bolt 14 therethrough. Then, a nut 13 is screwed to the lower end to constitute an embedded bracket. And this embedding metal fitting is embed | buried at the time of concrete foundation formation, and it arrange | positions so that the upper part of the foundation bolt 14 may be exposed upwards from the foundation upper surface 12. FIG. Next, the vicinity of the foundation bolt 14 is picked up and filled with a grout material to form the packer 16. Then, a plurality of height adjusting plates 15 having appropriate thicknesses are interposed on the packer 16, the flange portion 7 of the device is placed on the packer 16, and the nut 13 is screwed and fastened to the upper surface of the device. It was fixed on the upper surface 12 of the foundation.
[0003]
[Problems to be solved by the invention]
In the conventional device installation method, the foundation bolt 14 for device installation protrudes on the upper surface 12 of the foundation, and when the device is pulled into a predetermined position, the foundation bolt 14 becomes an obstacle and the installation work of the device is troublesome. At the time of the pull-in, the work for protecting the foundation bolts 14 and the like are required, and there is a disadvantage that the man-hours for installing the equipment increase.
Further, in order to install the equipment at a predetermined level, it is necessary to hang the top surface 12 of the foundation and install a packer there, which requires a lot of time and labor.
Therefore, the present invention takes the following method in order to eliminate the above problems.
[0004]
[Means for Solving the Problems]
The basic construction method for equipment installation of the present invention has a closed cylindrical portion 1 on one end side and welds a nut 3 formed with a screw hole 2 to the inner upper end of the cylindrical portion 1.
Welding a mold material such as an angle mold material or a T-shaped material to the outer periphery of the upper end of the cylindrical portion 1 so that a pair of wing portions 4 having a flat surface 4a on the upper surface protrude,
The burying metal fitting 5 is detachably supported by a support body 6 so that the tubular portion 1 and the falling portion 4b of the wing portion 4 are embedded in the equipment installation base portion, and the flat surface 4a of the wing portion 4 is embedded. A step of exposing
The apparatus installation flange portion 7 is placed on the flat surface 4 a of the wing portion 4, and the flange portion 7 is fastened and fixed to the embedded metal fitting 5 via a bolt 8. It is characterized by.
In a preferred embodiment of the present invention, the closing plate 9 whose outer periphery is sufficiently larger than the diameter of the cylindrical part 1 is fixed to the lower end of the cylindrical part 1.
Furthermore, a screw hole 10 for fastening with the support 6 is provided on the upper surface of the wing part 4.
Further, a notch 11 is formed at the upper end of the cylindrical part 1, and the outer periphery of the nut 3 and the cylindrical part 1 are welded and fixed at the notch 11.
[0005]
【Example】
Next, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view of an embedded metal fitting 5 manufactured in advance for carrying out the foundation method of the present invention. FIG. 2 shows an example of a support structure for burying the burying metal fitting 5 on the foundation concrete. And FIG. 3 is a longitudinal cross-sectional view which shows the attachment state of the metal fitting 5 for embed | buried by this basic construction method, and the flange part 7 of an apparatus.
In the foundation method in this embodiment, the embedded metal fitting 5 is manufactured in advance. The embedded metal fitting 5 includes a tubular portion 1, a wing portion 4, a nut 3, and a closing plate 9. The cylindrical part 1 is formed with U-shaped notches 11 for welding the nut 3 at two locations on the outer periphery of the upper end. And the nut 3 in which the screw hole 2 was formed is fitted on the inner surface of the upper end portion of the cylindrical portion 1, the peripheral edge portion and the inner surface of the cylindrical portion 1 are welded, and the outer surface of the nut 3 and the edge of the notch portion 11. Weld the parts. Further, in this embodiment, one end of a blade portion 4 made of an angle material of a steel plate is fixed to the upper end of the cylindrical portion 1 by welding. One end surface of the angle member is formed in advance in a shape that matches the outer periphery of the cylindrical portion 1. Further, a screw hole 10 is formed on one upper surface of the angle member. Then, the plane 4a of the angle member is made to coincide with the upper surface of the cylindrical portion 1, and the falling portion 4b is directed downward. And between the edge part of the plane 4a and the edge part of the falling part 4b, and the cylindrical part 1 outer periphery is fixed by welding. It should be noted that other mold materials such as T-shaped steel and H-shaped steel can be used instead of the angle material.
[0006]
Next, a closing plate 9 that is sufficiently larger than the outer diameter is welded and fixed to the lower end of the cylindrical portion 1 to complete the embedded metal fitting 5. As an example, such an embedded metal fitting 5 is detachably and securely held at the center of a support 6 standing in a gate shape. This support body 6 is formed of an angle material, and the lower flat surface of the upper end and the upper surface of the wing part 4 are brought into contact with each other. The nut 3 is screwed and fastened. If the small bolt 17 is fastened to the screw hole 10 of the wing part 4, the plane of the support 6 and the plane of the wing part 4 can be accurately aligned.
The cylindrical part 1 of the embedded metal fitting 5 supported in this way and the falling part 4b of the wing part 4 are embedded and fixed to the foundation concrete as shown in FIG. And the base upper surface 12 corresponds to the lower surface side of the plane 4a of the wing part 4. Next, the legs of the support 6 are cut and the bolts 8 and the small bolts 17 are removed, and the upper surface side of the wing 4 is maintained in a state where there is no protrusion.
[0007]
Therefore, next necessary equipment is drawn onto the base upper surface 12 and the bolt hole of the flange portion 7 is aligned with the nut 3 of the embedding metal fitting 5. Then, a height adjusting plate 15 having an appropriate thickness is interposed between the flange portion 7 and the wing portion 4 to adjust the level, and the shaft portion of the bolt 8 penetrating the flange portion 7 is connected to the embedded metal fitting 5. By screwing and fastening to the nut 3, the installation of the equipment is completed.
In addition, since the closing plate 9 provided at the lower end of the burying metal fitting 5 projects sufficiently outward from the cylindrical portion 1, the burying metal fitting 5 can be prevented from coming out upward.
[0008]
[Operation and effect of the invention]
The foundation method for equipment installation of the present invention is to embed the cylindrical part 1 and the falling part 4b of the wing part 4 in the equipment installation base part and to expose the flat surface 4a of the wing part 4. And the flange part 7 of an apparatus is mounted in the plane 4a, and it comprises so that the volt | bolt 8 may be fastened and fixed to the nut 3 of the cylindrical part 1. FIG. Therefore, unlike the conventional apparatus installation method, it is not necessary to hang the base upper surface 12 and install the packer there. At the same time, since the embedding metal fitting 5 is constituted by the cylindrical portion 1 with the nut 3, the foundation bolt protrudes on the foundation upper surface 12 as in the prior art, and there is no possibility that it will interfere with the drawing and positioning of the device. The equipment can be installed easily and quickly.
[Brief description of the drawings]
FIG. 1 is a perspective view of an embedded metal fitting 5 manufactured in advance for carrying out the foundation method of the present invention.
FIG. 2 shows an example of a support structure for burying the burying metal fitting 5 on foundation concrete.
FIG. 3 is a longitudinal sectional view showing a mounting state of an embedding metal fitting 5 and an apparatus flange portion 7 embedded by the basic construction method.
FIG. 4 is a partially longitudinal sectional elevational view of an embedded metal fitting used in a conventional foundation method.
FIG. 5 is a longitudinal sectional view showing a state in which the embedded metal fitting is embedded on the foundation concrete.
FIG. 6 is a longitudinal sectional view showing a state in which the flange portion 7 of the device is attached to the embedded metal fitting.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Cylindrical part 2 Screw hole 3 Nut 4 Wing | blade part 4a Plane 4b Falling part 5 Embedded metal fitting 6 Support body 7 Flange part 8 Bolt 9 Closure plate
10 Screw holes
11 Notch
12 Top surface of foundation
13 Nut
14 Foundation bolt
15 Height adjustment plate
16 Packer
17 Small bolt

Claims (4)

一端側の閉塞された筒状部１を有し、ネジ穴２が形成されたナット３を前記筒状部１の内部上端に溶接すると共に、
上面に平面４ａを有する一対の翼部４が突出するように、前記筒状部１の上端外周にアングル型材またはＴ型材等の型材を溶接して、埋設用金具５を予め製作する工程と、
前記埋設用金具５を支持体６に着脱自在に支持させて、前記筒状部１および翼部４の立ち下がり部４ｂを機器設置用基礎部に埋設すると共に、前記翼部４の前記平面４ａを露出させる工程と、
を具備し、前記翼部４の前記平面４ａに機器の設置用フランジ部７を載置し、ボルト８を介して前記埋設用金具５にそのフランジ部７が締結固定されるように構成したことを特徴とする、
機器設置用基礎工法。A nut 3 having a closed cylindrical portion 1 on one end side and having a screw hole 2 formed is welded to the inner upper end of the cylindrical portion 1,
Welding a mold material such as an angle mold material or a T-shaped material to the outer periphery of the upper end of the cylindrical portion 1 so that a pair of wing portions 4 having a flat surface 4a on the upper surface protrude,
The burying metal fitting 5 is detachably supported by a support body 6 so that the tubular portion 1 and the falling portion 4b of the wing portion 4 are embedded in the equipment installation base portion, and the flat surface 4a of the wing portion 4 is embedded. A step of exposing
The apparatus installation flange portion 7 is placed on the flat surface 4 a of the wing portion 4, and the flange portion 7 is fastened and fixed to the embedded metal fitting 5 via a bolt 8. Characterized by the
Basic construction method for equipment installation. 請求項１において、外周が前記筒状部１の直径よりも充分大きい閉塞板９をその筒状部１の下端に固定したもの。In Claim 1, the obstruction board 9 whose outer periphery is sufficiently larger than the diameter of the cylindrical portion 1 is fixed to the lower end of the cylindrical portion 1. 請求項１において、前記翼部４の上面に前記支持体６との締結用ネジ穴10が設けられたもの。  The screw hole 10 for fastening with the said support body 6 is provided in the upper surface of the said wing | blade part 4 in Claim 1. 請求項１において、前記筒状部１の上端部に欠切部11を形成し、その欠切部11において前記ナット３の外周と前記筒状部１とを溶接固定したもの。In Claim 1, the notch part 11 is formed in the upper end part of the said cylindrical part 1, and the outer periphery of the said nut 3 and the said cylindrical part 1 are weld-fixed in the notch part 11. In FIG.
JP28290494A 1994-10-21 1994-10-21 Basic construction method for equipment installation Expired - Fee Related JP3637455B2 (en)

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Application Number Priority Date Filing Date Title
JP28290494A JP3637455B2 (en) 1994-10-21 1994-10-21 Basic construction method for equipment installation

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Publication Number Publication Date
JPH08120688A JPH08120688A (en) 1996-05-14
JP3637455B2 true JP3637455B2 (en) 2005-04-13

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Publication number Priority date Publication date Assignee Title
CN102095052B (en) * 2010-11-25 2013-06-12 华锐风电科技(集团)股份有限公司 Installing method of foundation bolt anchoring system and method for installing industrial equipment
CN102080417B (en) * 2010-12-15 2012-05-23 中国二十二冶集团有限公司 Construction method for split burying of large T-shaped sleeve bolt

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