NO164998B - CASTLE STEEL HEAD FOR KNOT CONNECTIONS. - Google Patents
CASTLE STEEL HEAD FOR KNOT CONNECTIONS. Download PDFInfo
- Publication number
- NO164998B NO164998B NO855137A NO855137A NO164998B NO 164998 B NO164998 B NO 164998B NO 855137 A NO855137 A NO 855137A NO 855137 A NO855137 A NO 855137A NO 164998 B NO164998 B NO 164998B
- Authority
- NO
- Norway
- Prior art keywords
- rope
- head piece
- welding
- bollard
- approx
- Prior art date
Links
- 238000003466 welding Methods 0.000 claims description 8
- 229910001208 Crucible steel Inorganic materials 0.000 claims description 4
- 238000010276 construction Methods 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000006978 adaptation Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/62—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled
- B66C1/66—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled for engaging holes, recesses, or abutments on articles specially provided for facilitating handling thereof
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
- Bridges Or Land Bridges (AREA)
Description
Oppfinnelsen vedrører et hodestykke av støpestål for knuteforbindelser i et tredimensjonalt stålfagverk for offshore-kon-struksj oner. The invention relates to a head piece of cast steel for knot connections in a three-dimensional steel truss for offshore constructions.
Innenfor offshoreteknikken er det ofte nødvendig å løfte tunge stålfagverk ved hjelp av flytekraner. Slike fagverk kan eksempelvis være moduler, mellomdekkrammer eller en hel dekk-under-konstruksj on. In offshore engineering, it is often necessary to lift heavy steel trusses using floating cranes. Such trusses can, for example, be modules, intermediate deck frames or an entire deck-under-construction.
De konstruksjonsdeler hvor løftetauene festes, må naturligvis være meget kraftige, og de skal også muliggjøre en geometrisk tilfredsstillende tauføring, uten knekk eller uønskede bøyinger av tauene. Dessuten må de ofte som integrert del av fagverket kunne tåle de forventede belastningstilstander i løpet av fagverkets levetid, dvs. at de ikke bare må dimensjoneres for løfteinnsatsen, men også ut i fra hensynet til at de inngår som integrerte fagverksbestanddeler. The structural parts where the lifting ropes are attached must of course be very strong, and they must also enable a geometrically satisfactory rope routing, without kinks or unwanted bending of the ropes. Moreover, as an integral part of the truss, they must often be able to withstand the expected load conditions during the truss's lifetime, i.e. they must not only be dimensioned for the lifting effort, but also based on the fact that they are included as integrated truss components.
Hittil har man stort sett sveiset sammen slike steder under ut-nyttelse av tykke plater. Med økende vekter har imidlertid platetykkelsen stadig øket, og sveisingen har derfor også Until now, such places have mostly been welded together using thick plates. With increasing weights, however, the plate thickness has steadily increased, and so has the welding
blitt stadig vanskeligere. De hittil foreslåtte, av støpestål fremstilte løftestykker er imidlertid bare brukbare dersom, became increasingly difficult. However, the cast steel lifting pieces proposed so far are only usable if,
slik tilfellet er eksempelvis i en modul, fagverkets bæreele-menter er små nok til å kunne fastsveises til løftestykket. as is the case, for example, in a module, the supporting elements of the truss are small enough to be welded to the lifting piece.
Når det gjelder tredimensjonale fagverk av større dimensjoner, hvor bæreelementene eksempelvis foreligger i form av rør med en diameter på 1,5 m og mer, eller er bygget opp som tilsvar-ende store kassebjelker med massive vegger, kan slike støpte løftestykker ikke lenger anvendes, av såvel statiske som geo-metriske grunner. When it comes to three-dimensional trusses of larger dimensions, where the supporting elements are, for example, in the form of pipes with a diameter of 1.5 m or more, or are built up as correspondingly large box beams with massive walls, such cast lifting pieces can no longer be used, for both static and geometric reasons.
Hensikten med oppfinnelsen er å tilveiebringe et hodestykke The purpose of the invention is to provide a headpiece
av støpestål, hvilket hodestykke kan anvendes også i tredimensjonale fagverk av større dimensjoner, samtidig som hodestykket skal gi tilfredsstillende tauføring og som en integrert kon- of cast steel, which head piece can also be used in three-dimensional trusses of larger dimensions, at the same time that the head piece must provide satisfactory rope guidance and as an integrated con-
struksjonsdel ikke skal rage forstyrrende utenfor fagverkets ytterkonturer. structural part must not project disturbingly outside the framework's outer contours.
Ifølge oppfinnelsen foreslås det derfor et hodestykke som According to the invention, a headpiece is therefore proposed which
nevnt innledningsvis, hvilket hodestykke er kjennetegnet ved at et med avstivningsribber forsynt, kasseformet grunnlegeme på sin lokkside har en lommeformet utsparing med innstøpt taupullert. mentioned at the outset, which headpiece is characterized by a box-shaped basic body provided with stiffening ribs on its lid side having a pocket-shaped recess with an embedded rope bollard.
Ifølge oppfinnelsen kan det fordelaktig på grunnlegemets yttervegger være faststøpt sveisestusser. Disses ender og endene til avstivningsribbene kan være utformet som sveisetilknytning-er. According to the invention, there can advantageously be cast welding sockets on the outer walls of the basic body. These ends and the ends of the stiffening ribs can be designed as welding connections.
Den lommeformede utsparing er fordelaktig utformet for et svingeområde for tauet over en vinkel opptil 90° i et plan og i en vinkel opp til ca. 25° i et loddrett dertil stående, andre plan. Taupullerten kan hensiktsmessig ha et tauføringsspor som i retning oppover utvider seg med en breddeøkning på ca. 25°. The pocket-shaped recess is advantageously designed for a swing area for the rope over an angle of up to 90° in a plane and at an angle of up to approx. 25° in a perpendicular to it standing, second plane. The rope bollard can suitably have a rope guide groove which expands in the upward direction with an increase in width of approx. 25°.
Det nye hodestykket kan fordelaktig integreres også i større tredimensjonale fagverk,. med tilfredsstillende kraftoverføring og tauføring og uten å virke forstyrrende under den senere bruk av fagverket. The new head piece can advantageously also be integrated into larger three-dimensional trusses. with satisfactory power transmission and rope routing and without being disruptive during the subsequent use of the framework.
Oppfinnelsen skal forklares nærmere under henvisning til tegningen, hvor: Fig. 1 viser et grunnriss av et hodestykke med et rørformet The invention shall be explained in more detail with reference to the drawing, where: Fig. 1 shows a plan view of a head piece with a tubular
grunnlegeme, basic body,
fig. 2 viser et snitt etter linjen II-II i fig. 1, og fig. 3 viser et snitt etter linjen III-III i fig. 1. fig. 2 shows a section along the line II-II in fig. 1, and fig. 3 shows a section along the line III-III in fig. 1.
Taupullerten 1 og grunnplaten 2 er anordnet inne i et kasseformet grunnlegeme 3. Grunnlegemet har rettvinklet eller sirkel-formet tverrsnitt, i tilpassing til fagverkskonstruksjonen. The rope bollard 1 and the base plate 2 are arranged inside a box-shaped base body 3. The base body has a right-angled or circular cross-section, in adaptation to the truss construction.
En stiv forbindelse mellom grunnplaten 2 og grunnlegemet 1 er her tilveiebragt ved hjelp av fortrinnsvis loddrette avstivningsribber 4. For innlegging av tauet og for å muliggjøre en fri bevegelse av tauet 5, har det kasseformede grunnlegemet 3 en utsparing 7 på sin lokkside 6. A rigid connection between the base plate 2 and the base body 1 is here provided by means of preferably vertical stiffening ribs 4. For insertion of the rope and to enable free movement of the rope 5, the box-shaped base body 3 has a recess 7 on its lid side 6.
Taupullerten 1 har et tauføringsspor 8 som utvider seg i retning oppover med en vinkel på ca. 25°. Sporet er anordnet på The rope bollard 1 has a rope guide groove 8 which expands in the upward direction at an angle of approx. 25°. The track is arranged on
den siden av den skrå grunnplate 2 som vender mot lokksiden. Dermed vil tauet 5 få to frihetsgrader for sin trekkretning the side of the inclined base plate 2 that faces the lid side. Thus, the rope 5 will have two degrees of freedom for its pulling direction
og kan tilpasse seg alle praktiske løfteforhold innenfor vinkel-områdene 9 henholdsvis 10. and can adapt to all practical lifting conditions within the angle ranges 9 and 10 respectively.
For innsveising av hodestykket i det omgivende fagverk er det It is for welding the head piece into the surrounding framework
på ytterveggen 11 til grunnlegemet 3 faststøpt sveisestusser 12. Disse er ved sine ender 13 utformet slik at veggene til alle aktuelle, med strekpunkterte linje antydede fagverksele-menter, eksempelvis et rør, en hulkassebjelke eller en dobbel-T-kassebjelke, kan fastsveises her ved hjelp av stumpsveising, slik at det fremkommer en stiv knuteforbindelse. on the outer wall 11 of the base body 3, welded fittings 12 are cast. At their ends 13, these are designed so that the walls of all relevant truss elements indicated by dashed lines, for example a pipe, a hollow box beam or a double-T box beam, can be welded here by using butt welding, so that a rigid knot connection appears.
Claims (5)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19853506859 DE3506859A1 (en) | 1985-02-27 | 1985-02-27 | STEEL CAST HEAD PIECE FOR NODE JOINTS |
Publications (3)
Publication Number | Publication Date |
---|---|
NO855137L NO855137L (en) | 1986-08-28 |
NO164998B true NO164998B (en) | 1990-08-27 |
NO164998C NO164998C (en) | 1990-12-05 |
Family
ID=6263673
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO855137A NO164998C (en) | 1985-02-27 | 1985-12-18 | CASTLE STEEL HEAD FOR KNOT CONNECTIONS. |
Country Status (6)
Country | Link |
---|---|
DE (1) | DE3506859A1 (en) |
FR (1) | FR2577914B1 (en) |
GB (1) | GB2171389B (en) |
IT (1) | IT1190058B (en) |
NL (1) | NL191985C (en) |
NO (1) | NO164998C (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2207116B (en) * | 1987-07-22 | 1991-06-19 | River Don Castings Ltd | Load lifting apparatus |
GB9210601D0 (en) * | 1992-05-18 | 1992-07-01 | River Don Castings Ltd | Improvements in or relating to lifting devices |
US5735563A (en) * | 1992-05-18 | 1998-04-07 | River Don Castings Limited | Lifting devices |
DE9409223U1 (en) * | 1994-06-07 | 1994-09-08 | Alten Gerätebau GmbH, 30974 Wennigsen | Mounting device for bridge plates of ramp dock levellers |
DE4432767A1 (en) * | 1994-09-15 | 1996-03-21 | Hanns Hinkers | Suspension cable attachment to heavy steel structures |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2949654A (en) * | 1957-01-08 | 1960-08-23 | Us Electrical Motors Inc | Hoist cable retainer |
DE1217287B (en) * | 1959-07-02 | 1966-05-18 | Alfred Rexroth | Cast niche bollard housing |
DE1215601B (en) * | 1959-07-02 | 1966-04-28 | Alfred Rexroth | Ship holding device in the form of a niche bollard containing the connecting pin with outer anchoring links |
US3747554A (en) * | 1971-06-03 | 1973-07-24 | R Allen | Combination chock and fairlead fitting |
DE2363610A1 (en) * | 1973-12-20 | 1975-06-26 | Kraftwerk Union Ag | Component suspension equipment - comprises bell-mouthed tube with transverse locking pin for attachment of hoist rope |
DE2411999C2 (en) * | 1974-03-13 | 1982-12-23 | Fa. Friedrich Schroeder, 5982 Neuenrade | Device for transporting precast concrete parts |
GB2040872A (en) * | 1979-01-03 | 1980-09-03 | Oceanic Contractors | Sling engagement boss |
DE3123175C1 (en) * | 1981-06-05 | 1982-11-11 | Rud-Kettenfabrik Rieger & Dietz Gmbh U. Co, 7080 Aalen | Detachable anchor plate for securing chain - has semicircular chain link with hammer head location in plate |
DE3335909C2 (en) * | 1983-10-03 | 1986-04-10 | Hoesch Ag, 4600 Dortmund | Cast steel attachment for lifting heavy steel structures |
-
1985
- 1985-02-27 DE DE19853506859 patent/DE3506859A1/en active Granted
- 1985-12-18 NO NO855137A patent/NO164998C/en not_active IP Right Cessation
-
1986
- 1986-01-07 NL NL8600014A patent/NL191985C/en not_active IP Right Cessation
- 1986-02-24 GB GB08604491A patent/GB2171389B/en not_active Expired
- 1986-02-25 FR FR868602563A patent/FR2577914B1/en not_active Expired
- 1986-02-27 IT IT19571/86A patent/IT1190058B/en active
Also Published As
Publication number | Publication date |
---|---|
GB8604491D0 (en) | 1986-04-03 |
DE3506859A1 (en) | 1986-08-28 |
IT8619571A0 (en) | 1986-02-27 |
NO855137L (en) | 1986-08-28 |
NO164998C (en) | 1990-12-05 |
IT1190058B (en) | 1988-02-10 |
NL191985C (en) | 1996-12-03 |
DE3506859C2 (en) | 1988-07-21 |
GB2171389A (en) | 1986-08-28 |
FR2577914B1 (en) | 1989-04-21 |
IT8619571A1 (en) | 1987-08-27 |
NL8600014A (en) | 1986-09-16 |
NL191985B (en) | 1996-08-01 |
FR2577914A1 (en) | 1986-08-29 |
GB2171389B (en) | 1988-03-23 |
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MM1K | Lapsed by not paying the annual fees |
Free format text: LAPSED IN JUNE 2001 |