JP2003206541A - Method for replacing existing apparatus installed by using foundation bolt with new apparatus of large load - Google Patents
Method for replacing existing apparatus installed by using foundation bolt with new apparatus of large loadInfo
- Publication number
- JP2003206541A JP2003206541A JP2002004851A JP2002004851A JP2003206541A JP 2003206541 A JP2003206541 A JP 2003206541A JP 2002004851 A JP2002004851 A JP 2002004851A JP 2002004851 A JP2002004851 A JP 2002004851A JP 2003206541 A JP2003206541 A JP 2003206541A
- Authority
- JP
- Japan
- Prior art keywords
- foundation bolt
- pedestal
- equipment
- attached
- bolt
- 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
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Landscapes
- Foundations (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は原子力発電所等にあ
って各種の機器を設置するに際し、接地部から固装立設
した基礎ボルトと、これに螺合するナットを用いること
によって、当該機器を、架台を用いることなく直接取着
したり、この接地部に上記の基礎ボルトとナットとによ
り架台を固設して、当該架台に前記の各種機器を機器固
定具により耐震荷重に対しても転倒しないよう強固に取
着するようにし、次いでこのようにして取着された既設
機器の取外し後、上記の基礎ボルトをそのまま使用する
ことで、これよりも大荷重の新規機器を、耐震荷重に対
する基礎ボルトの強度不足による支障が生じないように
交換取着し得るようにした方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention, when installing various equipment in a nuclear power plant or the like, uses a foundation bolt fixedly installed from a grounding portion and a nut screwed to the foundation bolt, thereby making the equipment concerned. Directly without using a pedestal, or by fixing the pedestal to the grounding part with the foundation bolts and nuts described above, and by attaching the above-mentioned various equipment to the pedestal against seismic load with equipment fixtures. Make sure to attach firmly so that it will not fall over, and then remove the existing equipment attached in this way, and use the above foundation bolts as it is, so that new equipment with a larger load than The present invention relates to a method capable of replacement and attachment so as not to cause trouble due to insufficient strength of the foundation bolt.
【０００２】[0002]
【従来の技術】既知の通り、これまで原子力発電所に設
置する機器については、耐震設計上原則として建物また
は構築物等に設定された埋め込み金物や鋼構造物あるい
は基礎ボルトを用いて強固に床固定することが要求され
ており、上記の床から立設された基礎ボルトに機器の基
部を貫挿し、当該基礎ボルトに螺合したナットにより機
器を直接固定するようにするか、同上基礎ボルトとこれ
に螺合のナットにより取着した架台を介して機器固定具
により同上機器を固定するようにしている。上記の如き
基礎ボルトとナットによる床支持または架台固定の機器
にあっては、地震時における水平方向の地震力に起因し
て、上記基礎ボルトに対し機器または架台の水平方向荷
重と転倒モーメントがかかるため、当該基礎ボルトに対
しては引張荷重とせん断荷重が同時に生ずることにな
る。2. Description of the Related Art As is known, equipment installed in nuclear power plants has been firmly fixed to the floor by using embedded metal fittings, steel structures or foundation bolts set in buildings or structures as a general rule for seismic design. It is required to do so by inserting the base of the equipment into the foundation bolt standing upright from the floor and directly fixing the equipment with a nut screwed to the foundation bolt, or the same as the foundation bolt and this. The device is fixed by the device fixing tool through the frame attached by the screwed nut. In the case of equipment that supports the floor or is fixed to the pedestal using foundation bolts and nuts as described above, the horizontal load and overturning moment of the equipment or the pedestal are applied to the foundation bolt due to the horizontal seismic force during an earthquake. Therefore, a tensile load and a shear load are simultaneously generated on the foundation bolt.
【０００３】従って上記の如き床支持または架台固定で
ある既設機器に替えて、大きな地震荷重の生ずる新規機
器を交換取着する場合、もちろん前記の基礎ボルトは通
常取り替えることが困難となることから、そのまま使用
することになる。この結果当然のことながら、新規機器
の地震荷重は既設機器よりも大きくなることから、耐震
上当該基礎ボルトの強度上における裕度、すなわち許容
応力と発生応力との差が小さくなり、従って、より大き
な地震荷重を生ずる新規機器を設置すれば、当該基礎ボ
ルトの強度不足に基づく耐震上の健全性を保証できなく
なるという重大な問題が派生することになる。Therefore, when replacing the existing equipment which is fixed to the floor or fixed to the cradle as described above and replaces and attaches a new equipment which causes a large earthquake load, it is of course difficult to replace the foundation bolts. It will be used as it is. As a result, as a matter of course, the seismic load of the new equipment is larger than that of the existing equipment, so the seismic tolerance of the foundation bolt in terms of strength, that is, the difference between the allowable stress and the generated stress, becomes smaller, and therefore Installing new equipment that generates a large seismic load will cause a serious problem that it will not be possible to guarantee seismic integrity due to insufficient strength of the foundation bolt.
【０００４】[0004]
【発明が解決しようとする課題】本発明は上記従来技術
の難点に鑑み検討されたもので、請求項１にあっては既
設機器を基礎ボルトと取着用ナットによって床支持とし
て取着するのではなく、当該既設機器は単一の架台に対
して、機器固定具により充分強固に固定してしまい、当
該架台を接地部から固設立装の基礎ボルトに上記または
別個の取着用ナットを螺着することで、直接または連結
固定部材を介して接地部に載装取着するのである。かく
して既設機器は架台上にあって強固に固定することで、
既設機器自体が地震荷重に対しても転倒し難い自立でき
る構造をもたせた上で、さらにこの架台を接地部に対し
て上記の基礎ボルトと前述の取着用ナットとにより固定
することで、地震に際しての前記した転倒モーメント
を、基礎ボルトの引張方向剛性により分担させようとす
るようにしている。SUMMARY OF THE INVENTION The present invention has been studied in view of the above-mentioned drawbacks of the prior art. In claim 1, the existing equipment is not attached as a floor support by a foundation bolt and an attachment nut. Instead, the existing equipment should be firmly fixed to a single pedestal by means of equipment fixtures, and the pedestal should be screwed from the grounding part to the foundation bolt that is fixedly installed with the above or a separate attachment nut. Thus, the device is mounted and attached to the ground portion directly or through the connecting and fixing member. Thus, the existing equipment is on the pedestal and firmly fixed,
In the event of an earthquake, the existing equipment should have a structure that allows it to be self-sustaining so that it will not easily fall down even if it is subjected to an earthquake load, and that this stand is fixed to the ground part with the foundation bolts and attachment nuts described above. The above-described overturning moment is attempted to be shared by the rigidity of the foundation bolt in the tensile direction.
【０００５】そして請求項１で上記した既設機器を取り
外した後、当該既設機器よりも大荷重の新規機器を交換
取着するに際し、単に前記の基礎ボルトと前同または別
個の前述取着用ナットを用いるだけでなく、当該取着用
ナットの螺合により基礎ボルトの引張り剛性より小さな
ばね定数をもったばね座金が弾圧されるようにすること
で、前記した架台を直接または間接に接地部に対して固
定するのである。After removing the existing equipment described in claim 1, when replacing and attaching a new equipment having a larger load than the existing equipment, simply use the attachment nuts which are the same as or different from the foundation bolts. Not only by using it, but by screwing the mounting nut so that the spring washer with a spring constant smaller than the tensile rigidity of the foundation bolt is elastically pressed, the pedestal is directly or indirectly fixed to the grounding part. To do.
【０００６】このようにすることで請求項１によるとき
は、上記の如くばね座金のばね常数が基礎ボルトの引張
方向剛性より小さく設定されることで、大荷重である新
規機器に交換しても、新規機器および架台に生ずる地震
荷重に起因する弾性変移を、上記したばね座金によって
吸収し得るようにするのである。かくして基礎ボルトに
生ずる引張荷重を小さく押さえることができるように
し、もって大容量の新規機器に生ずる地震荷重のうち転
倒モーメントの大部分は基礎ボルトではなしに、架台の
弾性変形として吸収され、基礎ボルトの担う割合を小さ
くできるようにして、同じ基礎ボルトを使用しても大重
量である新規機器の交換後にあっても、大きな地震荷重
に充分耐え得るようにするのがその目的である。By doing so, according to the first aspect, the spring constant of the spring washer is set smaller than the rigidity in the tensile direction of the foundation bolt as described above, so that a new device having a large load can be replaced. The elastic washer caused by the seismic load generated in the new equipment and the pedestal can be absorbed by the spring washer described above. Thus, it is possible to suppress the tensile load generated on the foundation bolt to a small extent, and therefore, most of the overturning moment of the seismic load generated on the large-capacity new equipment is absorbed not as the foundation bolt but as elastic deformation of the pedestal, and the foundation bolt is absorbed. The purpose is to be able to bear a large earthquake load even after using the same foundation bolt and after replacing a heavy new device even if the same foundation bolt is used.
【０００７】次に請求項２にあっては、請求項１のよう
に既設機器は架台に取着し、さらに新規機器は当該架台
に対して既設機器に交換取着するのではなく、既設機器
は架台でなしに接地部に対して取着するようにし、新規
機器に交換する際にあって、はじめて一体に形成された
架台を、基礎ボルトと取着ナットとの間に請求項１と同
じくばね座金を介装することで、請求項１と同等の目的
を達成しようとしている。Next, in claim 2, the existing equipment is not attached to the pedestal and the new equipment is not attached to the existing equipment by replacing the existing equipment. Is attached to the ground portion instead of the base, and when the base is integrally formed for the first time when replacing with a new device, it is the same as that of claim 1 between the foundation bolt and the mounting nut. By interposing the spring washer, the same object as in claim 1 is achieved.
【０００８】次に請求項３にあっては、前記請求項１の
ように大形である単一の架台を用いるのではなく、接地
部に離間して併装載設した多数の単位架台によって架台
が構成されており、かつこれら単位架台における基板部
間にあって跨載した連結固定部材に、接地部から固設立
装の基礎ボルトを貫装し、この基礎ボルトに取着用ナッ
トを螺着することにより連結固定部材と接地部との間に
単位架台の基板部を挟着固定すると共に、既設機器また
は新規機器を単位架台の上板部にあって機器固定具によ
り強固に載装取着するよう構成されている点で相違して
いる。かくして請求項３によるときは、上記の請求項１
に係る目的を達成し得るだけでなく、小形ですむ単位架
台の採択により架台の設置作業、架台の基板部を連結固
定部材で固定するため、基礎ボルトを貫挿したり、取着
用ナットを締着する作業を効率的に実施できるようにす
るのが、その目的である。Next, in claim 3, instead of using a large single mount as in claim 1, a large number of unit mounts mounted separately on the ground portion are used. A base is constructed, and a fixed foundation bolt is pierced from the grounding part to the connecting and fixing member that is placed between the board parts of these unit mounts, and the mounting nut is screwed to this base bolt. To fix the board part of the unit frame between the connecting and fixing member and the grounding part, and to firmly mount the existing equipment or new equipment on the upper plate part of the unit frame with the equipment fixture. The difference is that it is configured. Thus, in the case of claim 3, the above claim 1
In addition to achieving the above-mentioned purpose, the installation of the gantry by adopting a small-sized gantry, and fixing the base plate of the gantry with the connecting and fixing member, insert the foundation bolt and tighten the mounting nut. The purpose is to be able to carry out the work to be carried out efficiently.
【０００９】そして請求項４にあっては、請求項３の場
合の如く単位架台からなる架台に対して既設機器が取着
されているのではなしに、接地部から固設立装された基
礎ボルトに、前述の取着用ナットを螺着することにより
載装取着されている既設機器につき、これを交換するこ
とを前提としており、それ以外に関しては前記請求項３
の構成と同一であり、その目的も同じである。In the fourth aspect, the existing equipment is not attached to the gantry consisting of the unit gantry as in the third aspect, but the foundation bolt is fixedly installed from the ground portion. It is premised that the existing equipment, which is mounted and mounted by screwing the above-mentioned mounting nut, is replaced, and otherwise, the above-mentioned claim 3
The configuration is the same and the purpose is also the same.
【００１０】[0010]
【課題を解決するための手段】本発明は、上記の目的を
達成するため接地部に載装固設した架台が、当該接地部
から固設立設した基礎ボルトに、架台または順次架台と
連結固定部を貫装後、取着用ナットを螺着することによ
り、当該架台または順次架台と連結固定部材を介して接
地部に固定され、同上架台には機器固定具により強固に
載装取着されている既設機器を交換するに際し、まず当
該既設機器を架台から取り外した後、前記取着用ナット
を基礎ボルトから取り外し、次に当該基礎ボルトに、そ
の引張り剛性よりも小さなばね定数であるばね座金を被
嵌して、当該基礎ボルトに螺合の前同または別個の取着
用ナットにより、上記ばね座金を弾圧させることで、前
記架台または架台と連結固定部材を接地部に固定した
後、この架台には前記の既設機器よりも大荷重である新
規機器が、前同機器固定具によって載装取着されるよう
にしたことを特徴とする基礎ボルトを用いて取着された
既設機器を大荷重の新規機器に交換取着する方法を提供
しようとするものである。SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a pedestal mounted and fixed to a grounding part, and a pedestal or a pedestal that is fixedly installed from the grounding part and is fixedly connected to the pedestal or the sequential pedestal. After mounting the part, it is fixed to the ground part through the mounting base or the connecting base and the connecting and fixing member by screwing the mounting nut, and the mounting base is firmly mounted and mounted on the mounting base by the device fixing tool. When replacing existing equipment, first remove the existing equipment from the frame, then remove the mounting nut from the foundation bolt, and then cover the foundation bolt with a spring washer having a spring constant smaller than its tensile rigidity. After fitting and fixing the base or the base and the connecting and fixing member to the grounding part by elastically pressing the spring washer with the same or separate mounting nut screwed to the base bolt, Previous The new equipment that has a heavier load than the existing equipment is mounted and attached by the previous equipment fixture, and the existing equipment that is attached using the foundation bolts has a large load. It is intended to provide a way to exchange and attach.
【００１１】さらに請求項２では接地部から固設立装さ
れた基礎ボルトに、取着用ナットを螺着することにより
載装取着されている既設機器を交換するに際し、まず当
該既設機器を接地部から取り外した後、前記の基礎ボル
トに、その引張り剛性よりも小さなばね定数であるばね
座金を被嵌して、当該基礎ボルトに螺合の前同または別
個の取着用ナットにより、上記ばね座金を弾圧させるこ
とで、用意された架台または当該架台と連結固定部材を
接地部に固定した後、この架台には前記の既設機器より
も大荷重である新規機器が用意された機器固定具によっ
て載装取着されるようにしたことを特徴とする基礎ボル
トを用いて取着された既設機器を大荷重の新規機器に交
換取着する方法を、その内容としている。Further, according to a second aspect of the present invention, when replacing the existing equipment mounted and attached by screwing an attachment nut to the foundation bolt fixedly installed from the ground portion, first, the existing equipment is grounded. After being removed from the base bolt, a spring washer having a spring constant smaller than the tensile rigidity is fitted to the foundation bolt, and the spring washer is attached to the foundation bolt by the same or separate attachment nut before screwing. After fixing the prepared pedestal or the pedestal and the connecting and fixing member to the grounding part by suppressing the pressure, the new equipment, which has a larger load than the existing equipment, is mounted on the pedestal by the equipment fixture. The content of the method is to replace an existing device, which has been installed using a foundation bolt, with a new heavy-load device.
【００１２】そして請求項３では、接地部に離間して併
装載設した多数の単位架台からなる架台が構築され、当
該単位架台の基板部間にあって跨載した連結固定部材
に、上記接地部から固設立装した基礎ボルトを貫装し、
当該基礎ボルトに取着用ナットを螺着することにより当
該連結固定部材と接地部との間にあって、前記の単位架
台における基板部を挟着固定し、前同架台の上板部には
機器固定具によって強固に載装取着されている既設機器
を交換するに際し、まず既設機器を単位架台の上板部か
ら取り外した後、前記の取着ナットを基礎ボルトから取
り外し、次に当該基礎ボルトに、その引張り剛性よりも
小さなばね定数であるばね座金を被嵌して、当該基礎ボ
ルトに螺合の前同または別個の取着用ナットにより、上
記連結固定部材に対して弾圧することで、当該連結固定
部材を各単位架台の基板部に固定した後、これら単位架
台の上板部には前記の既設機器よりも大荷重である新規
機器が、前同機器固定具によって載装取着されるように
したことを特徴とする基礎ボルトを用いて取着された既
設機器を大荷重の新規機器に交換取着する方法を提供し
ようとしている。Further, according to a third aspect of the present invention, there is constructed a gantry comprising a plurality of unit gantry units which are separately mounted on the grounding unit, and the grounding unit is attached to the connecting and fixing member laid between the substrate units of the unit gantry. The foundation bolt that was firmly established from
By screwing a mounting nut onto the base bolt, the base plate portion of the unit mount is clamped and fixed between the connection fixing member and the grounding part, and a device fixing tool is attached to the upper plate part of the front mount. When replacing existing equipment that is firmly mounted and attached by, first remove the existing equipment from the upper plate of the unit frame, then remove the attachment nut from the foundation bolt, and then to the foundation bolt, A spring washer having a spring constant smaller than the tensile rigidity is fitted and elastically pressed against the connecting and fixing member by the same or separate mounting nut screwed to the base bolt, whereby the connecting and fixing is performed. After fixing the members to the base plate of each unit frame, new equipment with a larger load than the existing equipment is mounted and mounted on the upper plate of these unit frames by the same equipment fixture. Characterized by That the existing devices that are attached by using the foundation bolts are trying to provide a way to exchange attached to the new equipment of a large load.
【００１３】また請求項４の場合には、接地部から固設
立装された基礎ボルトに、取着用ナットを螺着すること
により載装取着されている既設機器を交換するに際し、
まず既設機器を接地部から取り外した後、前記の取着ナ
ットを基礎ボルトから取り外し、次に当該前記基礎ボル
トに、その引張り剛性よりも小さなばね定数であるばね
座金を被嵌して、当該基礎ボルトに螺合の前同または別
個の取着用ナットにより、上記連結固定部材に対して弾
圧することで、当該連結固定部材を各単位架台の基板部
に固定した後、これら単位架台の上板部には前記の既設
機器よりも大荷重である新規機器が、前同機器固定具に
よって載装取着されるようにしたことを特徴とする基礎
ボルトを用いて取着された既設機器を大荷重の新規機器
に交換取着する方法が、その内容である。Further, in the case of claim 4, when replacing the existing equipment mounted and mounted by screwing the mounting nut onto the foundation bolt fixedly mounted from the ground portion,
First, after removing the existing equipment from the grounding part, the attachment nut is removed from the foundation bolt, and then the foundation bolt is fitted with a spring washer having a spring constant smaller than the tensile rigidity of the foundation bolt. After fixing the connecting and fixing members to the base plate of each unit pedestal by elastically pressing the connecting and fixing members with the same or separate mounting nuts screwed to the bolts, the upper plate of these unit pedestals The new equipment, which has a heavier load than the existing equipment described above, is mounted and attached by the same equipment fixture before. The method of exchanging and attaching to the new equipment is the contents.
【００１４】[0014]
【発明の実施の形態】本発明につき図１と図２とによっ
て以下詳記すると、これらの図面に開示のものは請求項
３そして請求項４に係る機器１の取着装置Ｍであるが、
当該図面を参照してまず請求項１の方法につき説示す
る。図示の取付装置Ｍとは違って、接地部１に載接した
架台２は大形な単一架台であり、接地部１から固設立装
した基礎ボルト３に、架台２または架台２とこれに重積
の連結固定部材８を貫装後、取着用ナット４を螺着する
ことにより、当該架台２または上記の架台２と連結固定
部材８を介して接地部１に固定され、この架台２には機
器固定具５によって強固に載装取着された図示されてい
ない既設機器が配設されている。本発明では上記の既設
機器を、これよりも大荷重である新規機器７に交換して
取着するための方法を提供しようとしている。ここで１
ａは接地部１に固設した基礎板部を示し、これに上記の
基礎ボルト３が貫設されている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to FIGS. 1 and 2. What is disclosed in these drawings is an attachment device M for a device 1 according to claims 3 and 4.
First, the method of claim 1 will be described with reference to the drawings. Unlike the mounting device M shown in the figure, the pedestal 2 mounted on the grounding portion 1 is a large single pedestal, and the pedestal 2 or the pedestal 2 and the pedestal 2 are attached to the foundation bolt 3 fixedly installed from the grounding portion 1. After mounting the stacking fixing member 8, the mounting nut 4 is screwed and fixed to the pedestal 2 or the pedestal 2 and the grounding portion 1 via the connecting fixing member 8 and the fixing member 8 is attached to the pedestal 2. An unillustrated existing device, which is firmly mounted and mounted by the device fixing tool 5, is provided. The present invention seeks to provide a method for replacing and installing the above-mentioned existing equipment with a new equipment 7 having a heavier load. Where 1
Reference numeral a denotes a base plate portion fixedly attached to the ground portion 1, and the above-mentioned foundation bolt 3 is provided through the base plate portion.
【００１５】そこで、まず上説の取着装置Ｍにあって既
設機器を架台２から取り外した後、取着用ナット４を基
礎ボルト３から螺脱し、さらに基礎ボルト３には、その
引張り剛性よりも小さなばね定数をもったばね座金６を
所要数だけ被嵌して、基礎ボルト３に螺合の前同または
別個に用意した取着用ナット４によりばね座金６を弾圧
させ、前記の通り架台２または架台２と連結固定部材８
を接地部１に固定する。そしてこのようにして固設され
た架台２には、前記した既設機器よりも大荷重である新
規機器７を、前同機器固定具５によって載装取着するの
である。Therefore, first, in the attachment device M described above, the existing equipment is removed from the pedestal 2, and then the attachment nut 4 is unscrewed from the foundation bolt 3, and the foundation bolt 3 has a tensile rigidity higher than that of the foundation bolt 3. A required number of spring washers 6 having a small spring constant are fitted, and the spring washers 6 are elastically pressed by the attachment nuts 4 that are the same as or separately provided before screwing the foundation bolts 3, and the pedestal 2 or pedestal as described above 2 and connection fixing member 8
Is fixed to the ground portion 1. Then, the new equipment 7 having a larger load than the existing equipment is mounted and mounted on the pedestal 2 fixed in this manner by the same equipment fixture 5.
【００１６】この際既設機器を取り外して、取着装置Ｍ
をそのままの状態で使用することで、基礎ボルト３と取
着用ナット４のみにより架台２を接地部１に載装取着
し、当該架台２に大重量の新規機器７を交換取着するよ
うにしたとすれば、一般に知られている通り耐震上新規
機器７に生ずる水平方向荷重と転倒モーメントに逆らっ
て当該新規機器７を支持することになるため、基礎ボル
ト３には引張荷重とせん断荷重が同時に生じ、この結果
既設機器に対応する強度にて設計施工された基礎ボルト
３は、新規機器７に対して強度が不足することになる。At this time, the existing equipment is removed and the attachment device M
By using it as it is, the pedestal 2 is mounted and attached to the grounding portion 1 only by the foundation bolt 3 and the attachment nut 4, and the heavy new equipment 7 is exchanged and attached to the pedestal 2. If so, since it is generally known that the new device 7 is supported against the horizontal load and the overturning moment that occur on the new device 7 for earthquake resistance, the foundation bolt 3 is subjected to tensile load and shear load. At the same time, as a result, the foundation bolt 3 designed and constructed with the strength corresponding to the existing equipment is insufficient in strength with respect to the new equipment 7.
【００１７】これに対し、請求項１によるときは前記の
通り新規機器７を架台２に対し強固に固定して、それ自
体が地震荷重により転倒しない自立できる構造とし、か
つ前説の通り基礎ボルト３にその引張り方向剛性より小
さなばね定数のばね座金６を適切に採択したことから、
大きな地震荷重を生ずる新規機器７の地震荷重に対して
も、基礎ボルト３の健全性を確保することが可能とな
る。換言すれば新規機器７と架台２に生ずる地震荷重に
起因の弾性変移が、ばね座金６によって吸収されること
で、基礎ボルト３に生ずる引張荷重を充分に小さくなる
よう抑制でき、これにより前記した回転モーメントの大
部分が基礎ボルト３ではなしに架台２の弾性変形として
吸収され、基礎ボルト３の担う割合が大幅に削減される
ことになる。On the other hand, according to the first aspect, as described above, the new device 7 is firmly fixed to the pedestal 2 so that the device itself can stand by itself without falling due to seismic load, and the foundation bolt 3 as described above. Since the spring washer 6 having a spring constant smaller than the rigidity in the pulling direction is properly adopted,
It is possible to secure the soundness of the foundation bolt 3 even with respect to the seismic load of the new device 7 that causes a large seismic load. In other words, the elastic load caused by the seismic load generated in the new equipment 7 and the gantry 2 is absorbed by the spring washer 6 so that the tensile load generated in the foundation bolt 3 can be suppressed to be sufficiently small. Most of the rotational moment is absorbed not as the foundation bolt 3 but as the elastic deformation of the pedestal 2, and the ratio of the foundation bolt 3 is significantly reduced.
【００１８】次に請求項２にあっては、その基本的構成
は上記した請求項１と同様であるが、ここでは接地部１
から固設立装された基礎ボルト３に、架台２ではなく、
取着用ナット４を螺着することにより載装取着されてい
る既設機器を交換する場合が開示されている。そこでま
ず当該既設機器を接地部１から取り外した後、基礎ボル
ト３に、その引張り剛性よりも小さなばね定数をもった
ばね座金６を被嵌する。そして上記基礎ボルト３に螺合
の前同または別個の取着ナット４によって、ばね座金６
を弾圧させることにより、用意された架台２または当該
架台２と連結固定部材８を接地部１に固定し、さらにこ
の架台２には既設機器よりも大荷重である新規機器７
が、請求項１と同じく機器固定具５によって載装取着さ
れるようにするのである。従って、その作用についても
上述請求項１の場合と実質的に同一となることからここ
での説示は省略されている。Next, in the second aspect, the basic structure is the same as that of the above-mentioned first aspect, but here, the grounding portion 1 is used.
To the foundation bolt 3 fixedly installed from the
A case is disclosed in which an existing device mounted and mounted is replaced by screwing the mounting nut 4. Therefore, first, after removing the existing equipment from the grounding portion 1, a spring washer 6 having a spring constant smaller than its tensile rigidity is fitted on the foundation bolt 3. Then, the spring washer 6 is attached to the foundation bolt 3 by the attachment nut 4 before or after being screwed.
The prepared pedestal 2 or the pedestal 2 and the connecting and fixing member 8 are fixed to the grounding portion 1 by suppressing the pressure of the new equipment 7 which has a larger load than the existing equipment.
In the same manner as in the first aspect, the equipment fixture 5 is used for mounting and mounting. Therefore, the action is also substantially the same as that of the above-mentioned claim 1, and therefore, the explanation here is omitted.
【００１９】次に請求項３に係る方法について図１、図
２により詳記すると、ここでは取着装置Ｍの構成が請求
項１、請求項２の場合と相違しており、架台２は単一構
成ではなく接地部１に離間して併装載設した多数の単位
架台２ａによって構築されており、その端面形状は基板
部２ｂと上板部２ｃ、そして当該両板部２ｂ、２ｃを、
その巾員中央部にあって連設した立脚部２ｄとによって
Ｉ形鋼状に形成されている。また単位架台２ａの接地部
１に載接された基板部２ｂ、２ｂ間にあって跨載の連結
固定部材８は、図１（Ａ）に明示の如く基板部２ｂ、２
ｂに載置される跨載板部８ａ、８ａと、当該跨載板部８
ａ、８ａを連設した樋条部８ｂとからなり、この樋条部
８ｂが基板部２ｂ、２ｂ間に露呈の接地部１にあって載
装されている。なお図１（Ａ）にあっては締着ボルト９
が連結固定部材８の跨載板部８ａ、８ａに螺合されるこ
とで、その先端部が単位架台２ａ、２ａの基板部２ｂ、
２ｂに締着するよう構成されている。Next, the method according to claim 3 will be described in detail with reference to FIGS. 1 and 2. Here, the structure of the attachment device M is different from that of claims 1 and 2, and the mount 2 is a single unit. It is constructed not by one configuration but by a large number of unit mounts 2a separately mounted on the grounding unit 1, and the end face shape thereof includes the substrate unit 2b, the upper plate unit 2c, and the two plate units 2b, 2c.
An I-shaped steel is formed by the standing legs 2d that are continuously provided in the central portion of the width. Further, as shown in FIG. 1 (A), the connecting and fixing member 8 mounted between the board portions 2b and 2b mounted on the grounding portion 1 of the unit mount 2a is mounted on the board portions 2b and 2b.
straddle plate portions 8a, 8a placed on the b, and the straddle plate portion 8
and a gutter section 8b in which a and 8a are connected in series, and the gutter section 8b is mounted on the exposed ground section 1 between the substrate sections 2b and 2b. In addition, in FIG. 1 (A), the fastening bolt 9
Is screwed onto the straddle plate portions 8a, 8a of the connecting and fixing member 8, so that the front end portions thereof are the substrate portions 2b of the unit mounts 2a, 2a,
It is configured to be fastened to 2b.
【００２０】さらに上記接地部１から固設立装した前説
の基礎ボルト３には、前記連結固定部材８における同上
樋条部８ｂに貫設されている嵌通口８ｃを貫挿し、当該
基礎ボルト３に取着用ナット４を螺着することにより、
この連結固定材８と接地部１との間にあって、単位架台
２ａの基板部２ｂを挟着固定し、単位架台２ａの上板部
２ｃには機器固定具５によって強固に載装取着された前
記の如き既設機器を取着することになる。ここで図２に
例示の取着装置Ｍによるときは、併装状態にて離間立設
した単位架台２ａ相互間にあって、その基板部２ｂ、２
ｂ間と上板部２ｃ、２ｃ間に、夫々所要複数の図示され
ていない挟装基盤と図示の挟装上板２ｅ、２ｅとが挟着
されることで組成され、これにより架台２の強度を確保
するようにしている。Further, the above-mentioned foundation bolt 3 fixedly installed from the grounding portion 1 is fitted with the fitting opening 8c penetrating the above-mentioned gutter portion 8b of the connecting and fixing member 8, and the foundation bolt 3 concerned. By screwing the mounting nut 4 onto the
The board portion 2b of the unit pedestal 2a is sandwiched and fixed between the connection fixing member 8 and the grounding portion 1, and the upper plate portion 2c of the unit pedestal 2a is firmly mounted and attached by the device fixing tool 5. The existing equipment as described above will be attached. Here, when the attachment device M illustrated in FIG. 2 is used, the substrate parts 2b, 2b and
Between the b and the upper plate portions 2c, 2c, a plurality of required sandwiching substrates (not shown) and the sandwiching upper plates 2e, 2e shown in the drawing are sandwiched, respectively. To ensure.
【００２１】さらに請求項３では、上記の既設機器を交
換するに際し請求項１の場合と同様にして、これを単位
架台２ａの上板部２ｃから取り外した後、取着ナット４
を基礎ボルト３から取り外し、当該基礎ボルト３に、前
同様にその引張り剛性よりも小さなばね定数をもったば
ね座金６を被嵌して、これを基礎ボルト３に螺合の前述
した取着用ナット４により、連結固定部材８に対して弾
圧することで、この連結固定部材８を各単位架台２ａの
基板部２ｂに固定する。そして当該単位架台２ａの上板
部２ｃには既設機器よりも大荷重である新規機器７を、
機器固定具５によって載装取着することで交換作業が終
わることになる。Further, in the third aspect, when replacing the above-mentioned existing equipment, in the same manner as in the first aspect, after removing this from the upper plate portion 2c of the unit frame 2a, the attachment nut 4 is removed.
Is removed from the base bolt 3, and a spring washer 6 having a spring constant smaller than the tensile rigidity thereof is fitted on the base bolt 3 as before, and the mounting washer 4 is screwed to the base bolt 3 as described above. Thus, by elastically pressing the connecting and fixing member 8, the connecting and fixing member 8 is fixed to the substrate portion 2b of each unit frame 2a. Then, on the upper plate portion 2c of the unit pedestal 2a, a new device 7 having a larger load than the existing device,
The replacement work is completed by mounting and mounting the equipment fixture 5.
【００２２】従って請求項３によるときは、もちろん基
本的には請求項１につき説示したと同様の目的を達成す
ることになるが、さらに、小形である単位架台２ａによ
り架台２を構成するようにしたから、取着装置Ｍの構築
作業が行い易くなると共に、単位架台２ａ間あって連結
固定部材８を配装して、これに基礎ボルト３を貫挿する
とか、装着用ナット４を締着すればよいことから総体的
に作業性を向上することが可能となる。Therefore, according to the third aspect, of course, basically, the same purpose as that described in the first aspect is achieved, but further, the pedestal 2 is constituted by the small unit pedestal 2a. Therefore, the work for constructing the attachment device M is facilitated, and the connection fixing member 8 is provided between the unit pedestals 2a, and the foundation bolt 3 is inserted therethrough or the mounting nut 4 is tightened. Therefore, the workability as a whole can be improved.
【００２３】次に請求項３では実質的に請求項３の内容
と同旨であるが、相違するところは、接地部１から固設
立装された基礎ボルト３に、取着用ナット４を螺着する
ことにより載装取着されている既設機器を交換しようと
していること、さらに新規機器７に交換する際用いられ
る架台２が単一機器のものでなく単位架台２ａを多数用
いて架台２が構築されていることである。従って、その
内容はまず既設機器を接地部１から取り外した後、取着
用ナット４を基礎ボルト３から外し、当該基礎ボルト３
に、その引張り剛性よりも小さな定数であるばね座金６
を被嵌して、基礎ボルト３に螺合の前同または別個の取
着用ナット４により、前記した連結用部材８に対して弾
圧することで、この連結固定部材８を各単位架台２ａの
基板部２ｂに固定する。そしてこれら新規機器７が、前
同機器固定具５によって載装取着することとなる。従っ
て、その作用についても請求項３と同様であることか
ら、ここでの説示は省略されている。Next, in claim 3, which is substantially the same as the content of claim 3, the difference is that the mounting nut 4 is screwed from the ground portion 1 to the foundation bolt 3 which is firmly installed. Therefore, the existing equipment that is mounted and attached is to be replaced, and the pedestal 2 used when replacing the new equipment 7 is not a single equipment, but the pedestal 2 is constructed using a large number of unit pedestals 2a. It is that. Therefore, the contents are that the existing equipment is first removed from the grounding portion 1, then the mounting nut 4 is removed from the foundation bolt 3, and the foundation bolt 3
And the spring washer 6 which is a constant smaller than its tensile rigidity.
Is fitted and elastically pressed against the connecting member 8 by the attachment nut 4 before or after being screwed to the base bolt 3 so that the connecting and fixing member 8 is a substrate of each unit pedestal 2a. It is fixed to the part 2b. Then, these new devices 7 are mounted and attached by the same device fixture 5. Therefore, since the action is also the same as that of claim 3, the explanation here is omitted.
【００２４】ここで上記のようにして実施される本願発
明に係る方法につき、その実益を検証してみると、今既
設機器に比し２倍の地震荷重を生ずる新規機器７を交換
設置した場合を想定してみれば、前説の如く架台２を使
用せず、しかもばね座金６も介装されることのない従来
法によるときは、当然のことながら地震発生時にあって
基礎ボルトに生ずる荷重が、せん断、引張りの両方とも
新規機器への交換によって２倍となる。これに対し本願
発明によるときは基礎ボルト３に発生する応力評価につ
いては、下記表１のような結果が得られることになる。Here, the actual benefits of the method according to the present invention implemented as described above will be verified. In the case where the new equipment 7 which produces twice the seismic load compared with the existing equipment is replaced and installed. Assuming that, in the case of the conventional method in which the pedestal 2 is not used and the spring washer 6 is not interposed as described above, the load generated on the foundation bolt due to the occurrence of an earthquake is naturally generated. Both shear, tension and tension will be doubled by replacing with new equipment. On the other hand, according to the present invention, the results shown in Table 1 below can be obtained for the evaluation of the stress generated in the foundation bolt 3.
【表１】
上記の表１につき説示すると既設機器では基礎ボルト３
に生ずるせん断応力が５０N/mm２、引張り応力が１００
N/mm２である場合は、同表中（注）の計算式から組合せ
応力が１３２N/mm２となり、そして、これらに対する許
容応力値は表中に明示の如く夫々１１８N/mm２、２０５
N/mm２、２０５N/mm２となる。次に新規機器７に交換し
た場合は、前記の通り地震荷重が既設機器の２倍となる
ため、従来技術によるときはせん断応力が１００N/m
m２、引張応力が２００N/mm２となり、従って許容応力
値である前掲１１８N/mm２、２０５N/mm２以下を保ち得
ることになる。しかし組合せ応力は２６５N/mm２とな
り、許容応力値である２０５N/mm２を超過してしまい、
耐震設計上基礎ボルト３の健全性が確保不能となる。[Table 1] If you explain about Table 1 above, the foundation bolt 3 in the existing equipment
Shear stress of 50N / mm 2 and tensile stress of 100
In the case of N / mm 2 , the combined stress is 132 N / mm 2 from the calculation formula in the table (Note), and the allowable stress values for these are 118 N / mm 2 and 205 respectively, as shown in the table.
N / mm 2, the 205N / mm 2. When the new equipment 7 is replaced next time, the seismic load becomes twice as much as that of the existing equipment as described above. Therefore, when using the conventional technology, the shear stress is 100 N / m.
The m 2 and tensile stress are 200 N / mm 2 , and therefore the allowable stress values of 118 N / mm 2 and 205 N / mm 2 or less can be maintained. But combined stress would be exceeded 265N / mm 2. Therefore, the 205N / mm 2 is the allowable stress values,
The soundness of the foundation bolts 3 cannot be ensured due to the seismic design.
【００２５】これに対し本発明によるときは、これまた
同表により理解される通り既設のばね座金６に基づく架
台２の弾性変位吸収効果により、引張加重が緩和され、
この結果新規機器を取着した場合のせん断応力も１００
N/mm２、引張応力が２００N/mm２ 、組合せ応力は２６
５N/mm２となって、組合せ応力値を超えてしまうのに対
し、本発明によるときは組合せ応力も１７３となり、従
って何れについても許容応力値以内となり、これにより
２倍の地震荷重を生ずる新規機器の交換取着に対して
も、耐震上基礎ボルト３の健全性が保持され得ることを
確認することができた。On the other hand, according to the present invention, the tension load is alleviated by the elastic displacement absorption effect of the pedestal 2 based on the existing spring washer 6 as understood from this table.
As a result, the shear stress when installing new equipment is 100
N / mm 2 , tensile stress is 200 N / mm 2 , combined stress is 26
In contrast to the combined stress value of 5 N / mm 2 , which exceeds the combined stress value, according to the present invention, the combined stress value is also 173, so that in any case, the stress value is within the allowable stress value. It was confirmed that the soundness of the seismic base bolt 3 can be maintained even when the equipment is replaced and attached.
【００２６】[0026]
【発明の効果】本願の請求項１に係る発明によるときは
取着装置における既設機器に換えて大荷重である新規機
器を取着する際、これらの機器は充分強度をもつ架台に
固定し一体化する自立構造として、想定された地震に対
し転倒しないようにしており、さらにばね定数を調整し
たばね座金を介装して取着用ナットを締着することで、
基礎ボルトをそのまま使用しても、これに対して過大な
引張り荷重が生ぜず、当該基礎ボルトの健全性を確保す
ることができる。すなわち想定される地震力に対し、大
荷重の新規機器に変換された後にあっても基礎ボルトに
生ずる引張方向への荷重が抑制されることにより、基礎
ボルトの強度上における裕度すなわち許容応力と発生応
力との差を多く確保でき、既設機器を取着している状態
に比し可成り大きな地震荷重に耐えることが可能とな
る。そして請求項２にあっては、既設機器を接地部に対
して取着した場合であるが、この際にも新規機器は、一
体形成の架台を基礎ボルトと取着用ナットの間に請求項
１と同じくばね座金を介して採択することから、実質的
に同じ効果を発揮することができる。According to the invention of claim 1 of the present application, when a large load of new equipment is to be attached instead of the existing equipment in the attachment device, these equipments are fixed to a pedestal having sufficient strength and integrated. As a self-supporting structure that will become stable, it is designed not to tip over against the expected earthquake, and by further tightening the mounting nut by interposing a spring washer with an adjusted spring constant,
Even if the foundation bolt is used as it is, an excessive tensile load is not generated, and the soundness of the foundation bolt can be secured. In other words, against the assumed seismic force, the load in the tensile direction of the foundation bolt is suppressed even after it has been converted to a new device with a large load, so that the margin in the strength of the foundation bolt, that is, the allowable stress A large difference from the generated stress can be secured, and it is possible to withstand a considerably large seismic load compared to the state in which existing equipment is attached. According to claim 2, the existing device is attached to the grounding part. In this case, however, the new device has an integrally formed base between the foundation bolt and the attachment nut. Since it is adopted via the spring washer as in the above, substantially the same effect can be exhibited.
【００２７】そして請求項３にあっては、もちろん上記
請求項１の場合と同等の効果を発揮するだけでなく、架
台を相互に離間した単位架台の併設によって構成し、単
位架台の基板部を基礎ボルトに貫挿の連結固定部材によ
り取着用ナットの締着によって固定するようにしたの
で、架台の設置作業が簡易、迅速に行い得ることとな
る。そして請求項４の場合には、既設機器が基礎ボルト
と取着用ナットとにより接地部に取着されていること、
そして単位架台によって架台が構成されていることか
ら、実質的に請求項３と同等の効果を発揮することにな
る。In the third aspect, of course, not only the same effect as the case of the above-mentioned first aspect is exhibited, but also the gantry is constituted by the adjoining unit gantry spaced apart from each other, and the substrate part of the unit gantry is formed. Since the fixing bolts are fixed to the foundation bolts by fastening and fixing the attachment nuts, the installation work of the gantry can be performed easily and quickly. And, in the case of claim 4, the existing equipment is attached to the ground portion by the foundation bolt and the attachment nut,
Further, since the gantry is composed of the unit gantry, the effect substantially the same as that of claim 3 is exhibited.
【図１】（Ａ）は本願の請求項３に係る新規機器の交換
取着方法を実施するのに用いられる取着装置を示す要部
縦断正面図で、（Ｂ）は図２のＡ−Ａ線縦断正面略示図
である。FIG. 1A is a vertical cross-sectional front view of a main part of an attachment device used for carrying out a replacement attachment method of a new device according to claim 3 of the present application, and FIG. It is an A line vertical section schematic front view.
【図２】本願請求項３に係る前同取着装置を示す一部を
切欠した略示斜視図である。FIG. 2 is a partially cutaway schematic perspective view showing the front attachment device according to claim 3 of the present application.
１ 接地部 ２ 架台 ２ａ 単位架台 ２ｂ 基板部 ２ｃ 上板部 ３ 基礎ボルト ４ 取着用ナット ５ 機器固定具 ６ ばね座金 ７ 新規機器 ８ 連結固定部材 1 grounding part 2 mounts 2a unit mount 2b substrate part 2c Upper plate part 3 foundation bolt 4 Mounting nuts 5 equipment fixtures 6 spring washers 7 New equipment 8 Connection fixing member
Claims (4)
部から固設立設した基礎ボルトに、架台または順次架台
と連結固定部材を貫装後、取着用ナットを螺着すること
により、当該架台または順次架台と連結固定部材を介し
て接地部に固定され、同上架台には機器固定具により強
固に載装取着されている既設機器を交換するに際し、ま
ず当該既設機器を架台から取り外した後、前記取着用ナ
ットを基礎ボルトから取り外し、次に当該基礎ボルト
に、その引張り剛性よりも小さなばね定数であるばね座
金を被嵌して、当該基礎ボルトに螺合の前同または別個
の取着用ナットにより、上記ばね座金を弾圧させること
で、前記架台または架台と連結固定部材を接地部に固定
した後、この架台には前記の既設機器よりも大荷重であ
る新規機器が、前同機器固定具によって載装取着される
ようにしたことを特徴とする基礎ボルトを用いて取着さ
れた既設機器を大荷重の新規機器に交換取着する方法。1. A mounting base fixedly mounted on the grounding part is mounted on a foundation bolt fixedly installed from the grounding part by mounting the mounting base or the mounting base and a connecting and fixing member, and then screwing a mounting nut. When replacing the existing equipment that is fixed to the ground part through the pedestal or the pedestal and the pedestal through the connecting and fixing member, and is firmly mounted and attached to the pedestal by the equipment fixture, first replace the existing equipment from the pedestal. After the removal, the attachment nut is removed from the foundation bolt, and then the foundation bolt is fitted with a spring washer having a spring constant smaller than its tensile rigidity, and the foundation bolt is screwed to the foundation bolt or separately. After fixing the pedestal or the pedestal and the connecting and fixing member to the grounding part by elastically pressing the spring washer with the mounting nut, the new equipment having a larger load than the existing equipment is attached to the pedestal. Aircraft A method for exchanging and attaching an existing equipment attached using a foundation bolt to a new equipment having a large load, characterized in that the equipment is attached and attached by a vessel fixing tool.
に、取着用ナットを螺着することにより載装取着されて
いる既設機器を交換するに際し、まず当該既設機器を接
地部から取り外した後、前記の基礎ボルトに、その引張
り剛性よりも小さなばね定数であるばね座金を被嵌し
て、当該基礎ボルトに螺合の前同または別個の取着用ナ
ットにより、上記ばね座金を弾圧させることで、用意さ
れた架台または当該架台と連結固定部材を接地部に固定
した後、この架台には前記の既設機器よりも大荷重であ
る新規機器が用意された機器固定具によって載装取着さ
れるようにしたことを特徴とする基礎ボルトを用いて取
着された既設機器を大荷重の新規機器に交換取着する方
法。2. When replacing an existing equipment that is mounted and attached by screwing an attachment nut to a foundation bolt that is firmly installed from the ground portion, first remove the existing equipment from the ground portion. After that, by fitting a spring washer having a spring constant smaller than its tensile rigidity to the foundation bolt, and elastically pressing the spring washer with the attachment nut that is screwed to the foundation bolt or before or separately. Then, after fixing the prepared pedestal or the pedestal and the connecting and fixing member to the grounding part, new equipment with a larger load than the existing equipment is mounted and mounted on this pedestal with the prepared equipment fixture. A method of exchanging and attaching an existing device attached using a foundation bolt to a new heavy load device.
位架台からなる架台が構築され、当該単位架台の基板部
間にあって跨載した連結固定部材に、上記接地部から固
設立装した基礎ボルトを貫装し、当該基礎ボルトに取着
用ナットを螺着することにより当該連結固定部材と接地
部との間にあって、前記の単位架台における基板部を挟
着固定し、前同架台の上板部には機器固定具によって強
固に載装取着されている既設機器を交換するに際し、ま
ず既設機器を単位架台の上板部から取り外した後、前記
の取着ナットを基礎ボルトから取り外し、次に当該基礎
ボルトに、その引張り剛性よりも小さなばね定数である
ばね座金を被嵌して、当該基礎ボルトに螺合の前同また
は別個の取着用ナットにより、上記連結固定部材に対し
て弾圧することで、当該連結固定部材を各単位架台の基
板部に固定した後、これら単位架台の上板部には前記の
既設機器よりも大荷重である新規機器が、前同機器固定
具によって載装取着されるようにしたことを特徴とする
基礎ボルトを用いて取着された既設機器を大荷重の新規
機器に交換取着する方法。3. A gantry comprising a large number of unit gantry units mounted separately from each other on the grounding unit is constructed, and a fixed fixing member is installed from the grounding unit to a connecting and fixing member mounted between the substrate units of the unit gantry. The base bolt is pierced through and the mounting nut is screwed to the base bolt, and the base plate portion of the unit mount is clamped and fixed between the connection fixing member and the grounding part. When replacing the existing equipment that is firmly mounted and attached to the upper plate by the device fixing tool, first remove the existing equipment from the upper plate of the unit base and then remove the mounting nut from the foundation bolt. Then, the base bolt is fitted with a spring washer having a spring constant smaller than the tensile rigidity thereof, and the base bolt is screwed onto the base bolt by the attachment nut or the separate attachment nut. By suppressing, After fixing the connecting and fixing member to the board of each unit frame, new equipment having a larger load than the existing equipment is mounted and mounted on the upper plate of these unit frames by the same equipment fixture. A method of exchanging and attaching an existing device attached using a foundation bolt to a new heavy load device.
に、取着用ナットを螺着することにより載装取着されて
いる既設機器を交換するに際し、まず既設機器を接地部
から取り外した後、前記の取着用ナットを基礎ボルトか
ら取り外し、次に当該前記基礎ボルトに、その引張り剛
性よりも小さなばね定数であるばね座金を被嵌して、当
該基礎ボルトに螺合の前同または別個の取着用ナットに
より、上記連結固定材品に対して弾圧することで、当該
連結固定部材を各単位架台の基板部に固定した後、これ
ら単位架台の上板部には前記の既設機器よりも大荷重で
ある新規機器が、前同機器固定具によって載装取着され
るようにしたことを特徴とする基礎ボルトを用いて取着
された既設機器を大荷重の新規機器に交換取着する方
法。4. When exchanging an existing device that is mounted and attached by screwing a mounting nut onto a foundation bolt that is firmly installed from the ground part, first remove the existing device from the ground part. , The attachment nut is removed from the foundation bolt, then the foundation bolt is fitted with a spring washer having a spring constant smaller than its tensile rigidity, and the foundation bolt is screwed onto the foundation bolt or separately. After the connecting and fixing member is fixed to the board part of each unit pedestal by elastically pressing the connecting fixing material with the mounting nut, the upper plate part of these unit pedestals is larger than the existing equipment. A new device, which is a load, is mounted and attached by a fixture for the same device. A method for exchanging and attaching an existing device attached using a foundation bolt to a heavy-load new device. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002004851A JP3765478B2 (en) | 2002-01-11 | 2002-01-11 | Replacing and installing existing equipment attached with foundation bolts to new heavy-duty equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002004851A JP3765478B2 (en) | 2002-01-11 | 2002-01-11 | Replacing and installing existing equipment attached with foundation bolts to new heavy-duty equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003206541A true JP2003206541A (en) | 2003-07-25 |
| JP3765478B2 JP3765478B2 (en) | 2006-04-12 |
Family
ID=27644062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002004851A Expired - Fee Related JP3765478B2 (en) | 2002-01-11 | 2002-01-11 | Replacing and installing existing equipment attached with foundation bolts to new heavy-duty equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3765478B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109252537A (en) * | 2018-11-01 | 2019-01-22 | 国网宁夏电力有限公司检修公司 | The adjustable disconnecting link basis of ultra-high voltage converter station valve hall |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0791025A (en) * | 1993-09-27 | 1995-04-04 | Mitsubishi Electric Corp | Earthquake-resisting installation device for equipment |
| JPH10292487A (en) * | 1997-04-11 | 1998-11-04 | Nippon Steel Corp | Exposure type pedestal structure |
| JPH11181795A (en) * | 1997-12-19 | 1999-07-06 | Takasago Thermal Eng Co Ltd | Machine foundation |
-
2002
- 2002-01-11 JP JP2002004851A patent/JP3765478B2/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0791025A (en) * | 1993-09-27 | 1995-04-04 | Mitsubishi Electric Corp | Earthquake-resisting installation device for equipment |
| JPH10292487A (en) * | 1997-04-11 | 1998-11-04 | Nippon Steel Corp | Exposure type pedestal structure |
| JPH11181795A (en) * | 1997-12-19 | 1999-07-06 | Takasago Thermal Eng Co Ltd | Machine foundation |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109252537A (en) * | 2018-11-01 | 2019-01-22 | 国网宁夏电力有限公司检修公司 | The adjustable disconnecting link basis of ultra-high voltage converter station valve hall |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3765478B2 (en) | 2006-04-12 |
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