US3734302A - Traveling monotower crane base - Google Patents

Traveling monotower crane base Download PDF

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Publication number
US3734302A
US3734302A US00150125A US3734302DA US3734302A US 3734302 A US3734302 A US 3734302A US 00150125 A US00150125 A US 00150125A US 3734302D A US3734302D A US 3734302DA US 3734302 A US3734302 A US 3734302A
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Prior art keywords
tower
concrete beams
base
crane
beams
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Expired - Lifetime
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US00150125A
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English (en)
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P Durand
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Richier SA
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Richier SA
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B66C23/72—Counterweights or supports for balancing lifting couples
    • B66C23/78—Supports, e.g. outriggers, for mobile cranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C2700/00—Cranes
    • B66C2700/03—Cranes with arms or jibs; Multiple cranes
    • B66C2700/0321—Travelling cranes
    • B66C2700/0357—Cranes on road or off-road vehicles, on trailers or towed vehicles; Cranes on wheels or crane-trucks
    • B66C2700/0378—Construction details related to the travelling, to the supporting of the crane or to the blocking of the axles; Outriggers; Coupling of the travelling mechamism to the crane mechanism

Definitions

  • the base according to this invention for a traveling 30 Foreign Application priority Data monotower crane consists only of lower and upper concrete beams, whether reinforced or prestressed, as- June 5, 1970 France ..702()649 Moldd to one another and to the tower and carrier trucks of the crane, by means of tie-rods extending [52] US. Cl. ..212/1, 52/223, 52/227, vertically therethrough i Order to impart a high 212/49 strength to the assembly and improve the stability of [51] Ilft. Cl.
  • the tower The i extend preferably through [58] Fleld of Search ..2l2/1,10,48, 49, g i tubes embedded in the concrete and the nuts 212/28 29; 52/648 227 provided at the ends of these tie-rods bear against the concrete faces through the medium of stress-distribut- [56] References Cited ing plates.
  • the tower may preferablybe mounted ad- UNITED STATES PATENTS jacent one end of the upper beams, in order to increase the useful radius of the crane and therefore its 1 7,645 11/18 7 Lyons working efficiency measured in tons/meter (FIG. 7).
  • the present invention relates to improvements in the bases or carriages of traveling monotower cranes of the type consisting of a single tower on which the trolley and balance-weight booms are mounted for free slewing motion, the lower portion of the tower being rigid with a base equipped with carrier rollers on wheels assembled in rigid trucks adapted to travel along a track, generally a railway line.
  • these portable monotower cranes consist entirely of steel sections.
  • the tower of the crane is mounted and secured to a traveling base also consisting of steel sections and so constructed that its longitudinal axis lies substantially in the vertical median plane of the track.
  • this base is connected to the tower by means of four braces in order to minimize the distortion caused by bending stress and moments transmitted by the tower.
  • This base is generally ballasted with heavy concrete blocks in order to preserve the crane stability.
  • the base consists only of concrete beams, whether reinforced or prestressed, assembled to one another, to the tower and to said trucks by means of tie-rods extending vertically therethrough, in order to constitute a high-strength frame structure.
  • the crane base is particularly sturdy and distortion-free, so that its stability and the guiding of the assembly along the track are greatly improved.
  • Another advantage resulting from the use of concrete is that it permits of imparting a sufficient stiffness to the base beams without increasing the cost, so that the braces hitherto unavoidable in conventional constructions for avoiding the substantial distortion of the steel base can be dispensed with.
  • tubes are embedded in the connecting areas of each concrete beam to permit the passage ofsaid tie-rods receiving at their projecting ends the nuts engaging the registering outer faces of the beams through the medium of metal plates.
  • the nut tightening efforts are transmitted to the beams through these plates having a bearing surface area considerably larger than said nuts, and any risk of damaging the beams is safely eliminated. Furthermore, the various beams are easily assembled by using a reduced number of connecting members.
  • FIGS. 1, 2 and 3 are front-elevational, sideelevational and plan views, respectively, of a first form of embodiment of the tower base of this invention
  • FIGS. 4, 5 and 6 are sections taken along the lines 4-4, 5-5 and 6-6, respectively, of FIGS. 1 and 9, showing on a larger scale a typical form of embodiment of the means interconnecting the beams, tower and carrier trucks
  • FIGS. 7 and 8 are elevational and sectional views, respectively, showing on a smaller scale a modified form of embodiment of the base, the section being taken along the line 88 of FIG. 7
  • FIGS. 9, 10 and 11 are views similar to FIGS. 1, 2 and 3, respectively, showing on a larger scale the base of FIGS. 7 and 8.
  • the base 1 comprises a pair of lower transverse beams 2 and a pair of upper longitudinal beams 3, these four beams consisting of reinforced concrete.
  • the lower transverse beams 2 disposed perpendicu larly to the track 4 are connected adjacent their ends to trucks 5 equipped with heavy-duty rollers on wheels 6. They are furthermore connected to the pair of upper beams 3 disposed parallel to and on either side of the longitudinal center line of said track 4.
  • the aforesaid pair of longitudinal beams 3 carry with their central portions the lower portion of the crane tower 7 to which they are rigidly connected by means shown more in detail in FIG. 4.
  • Each frame element of tower 7 is connected to the corresponding concrete beam 3 by means of tie-rods 8 extending through a set of tubes 9 embedded in the beam 3; the projecting ends of these tie-rods are provided with nuts 10, 12 bearing on the one hand against a metal plate 13 rigid with the relevant frame element 7a of tower 7 and on the other hand against a bearingplate 14 interposed between the nut and the lower face of said beam 3.
  • said beams 3 and 2 have crosssections of side-lengths several times as long as the transverse (horizontal) dimensions of said frame elements 7a.
  • the tower 7 is perfectly and safely connected to the base 1 and the tie-rods 8 are only tension stressed. Moreover, due to the presence of the bearing plates 13 and 14, the tightening efforts of nuts 10 and 12 are distributed throughout the surface area of these plates, thus preventing considerable local stresses from damaging the concrete beams.
  • the longitudinal beams 3 are also connected to the transverse beams 2 by means of other tie-rods 15 extending with a sufficient clearance through the tubular members 16 and 17 embedded in each beams these tie-rods 15 are provided with nuts 18 and 19 bearing against plates 20 and 22 engaging the ones the upper faces of beams 3 and the others the lower faces of beams 2.
  • each beam 2 is connected to the corresponding trucks 5 through tie-rods 23 extending with a sufficient clearance through tubular members 24 embedded in said beam and comprising nuts 25 and 26 engaging on the one hand a plate 27 and on the other hand a plate 28 rigid with each truck frame.
  • the tower 7 is even somewhat overhung in relation to the base 30, and therefore in relation to the track 4 along which it can travel.
  • the ballast 32 is off-set in a direction opposite to the tower off-setting and is therefore supported near the edge opposite to that supporting the tower.
  • the base and the ballast are calculated to permit the crane operation according to its operating characteristics, for example in tons/meter defined by taking as the origin of the range the longitudinal median axis of the track.
  • the other elements of the crane are determined as in conventional crane construction according to the crane characteristics of which the radius is calculated from the vertical axis of the tower as the origin.
  • the lower part 7a of the'tower is connected to the towers upper part 7b, which carries the trolley and balance weight booms, by pivot means 70 for this upper part.
  • the lower end of tower 7 is located at one of the base corners and projects therefrom by about 0.4 meter in relation to the vertical swivel axis of the relevant truck 5, so that the tower can be brought to the same extent near the two vertical walls 29 of a reentrant corner 29 of an angle or L-shaped building such as 31.
  • the base 30 comprises a pair of transverse beams 2 and a pair of longitudinal beams 3 secured to said transverse beams 2 so as to be parallel to, and on either side of, the rail of track 4 which is nearest to the wall 29 of the building 31 to be constructed.
  • the lower portion of tower 7 is secured to the ends of the aforesaid pair of longitudinal beams 3 in such a way that its vertical axis merges into that of the corresponding or underlying truck 5, i.e. the truck nearest to the re-entrant corner of the L- shaped building 31.
  • the ballast or balance weight 32 disposed at the corner opposite to that occupied by the tower 7 consists of longitudinal beams 35 and transverse beams 36.
  • the resultant of the crane weight is constantly applied substantially centrally of the base 30 as shown by the point of application 37 in FIG. 1 1.
  • the bearing point of the maximum load that can be carried by the crane is shifted towards the building 31 under construction by a value equal to the shifting of the longitudinal or median vertical axis of this tower in relation to the base axis.
  • the span increment or gain is (5/2) (1.6/2) 0.4 2.1 meters.
  • this range increment provides a gain in efficiency corresponding to 12 tons X 2.1 meters 25.2 tons/meters.
  • Base for a travelling tower crane for use on a construction site, said crane being of the type wherein a single perpendicular tower is used which has upstanding elements to form its frame and has trolley and balance weight booms mounted on top of its frame for free slewing motion, said base comprising: four rigid trucks, each having carrier rollers; tracks for said rollers, disposed along said construction site; a system of four concrete beams, each having a cross-section larger than the horizontal dimensions of said upstanding elements, a first pair of said concrete beams extending along the tracks and another pair extending across the tracks, one of said pairs being supported by the other and the other being supported by said trucks; three sets of tie rod means for securing together, respectively, said trucks and other pair of concrete beams, said one and other pair of concrete beams, and the lower portion of said tower and said one pair of concrete beams, with the perpendicular center line of said tower being located adjacent the center of one of said four trucks.
  • tie rod means extending vertically through said concrete beams for assembling said system of concrete beams with the base of said tower and with the tops of said trucks as a strong and substantially distortiomfree structure.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jib Cranes (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
US00150125A 1970-06-05 1971-06-04 Traveling monotower crane base Expired - Lifetime US3734302A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7020649A FR2092660B1 (fr) 1970-06-05 1970-06-05

Publications (1)

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US3734302A true US3734302A (en) 1973-05-22

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US (1) US3734302A (fr)
FR (1) FR2092660B1 (fr)
GB (1) GB1291203A (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4053060A (en) * 1976-02-13 1977-10-11 Wilson Virgil D Crane
US4421242A (en) * 1980-03-19 1983-12-20 Butler Manufacturing Company Panel locator
US20060226105A1 (en) * 2003-07-02 2006-10-12 Joop Roodenburg Mobile crane
US20170144870A1 (en) * 2015-11-19 2017-05-25 Pride Bodies Ltd. Crane Support Assembly
US20180179029A1 (en) * 2014-12-23 2018-06-28 Manitowoc Crane Companies, Llc Crane 3d workspace spatial techniques for crane operation in proximity of obstacles
CN112723190A (zh) * 2020-12-31 2021-04-30 江阴建禾钢品有限公司 一种用于塔吊钢结构的基础底座
CN113997022A (zh) * 2021-11-22 2022-02-01 沪东中华造船(集团)有限公司 一种重吊船克令吊基座制作方法及克令吊基座

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2732323B1 (fr) * 1995-03-28 1997-05-30 Potain Sa Blocs de lest pour grues et dispositif de fixation associe

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US197645A (en) * 1877-11-27 Improvement in portable derricks
US1497686A (en) * 1922-06-28 1924-06-17 Allan E Johnson Crane
US1765664A (en) * 1926-09-11 1930-06-24 Otto S Flath Signal foundation
US2496850A (en) * 1950-02-07 Method and apparatus fob manu
US2786349A (en) * 1951-01-16 1957-03-26 Coff Leo Prestressed concrete building
US3429092A (en) * 1966-05-26 1969-02-25 Dyna Structures Structural frames and methods and means therefor

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US197645A (en) * 1877-11-27 Improvement in portable derricks
US2496850A (en) * 1950-02-07 Method and apparatus fob manu
US1497686A (en) * 1922-06-28 1924-06-17 Allan E Johnson Crane
US1765664A (en) * 1926-09-11 1930-06-24 Otto S Flath Signal foundation
US2786349A (en) * 1951-01-16 1957-03-26 Coff Leo Prestressed concrete building
US3429092A (en) * 1966-05-26 1969-02-25 Dyna Structures Structural frames and methods and means therefor

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4053060A (en) * 1976-02-13 1977-10-11 Wilson Virgil D Crane
US4421242A (en) * 1980-03-19 1983-12-20 Butler Manufacturing Company Panel locator
US20060226105A1 (en) * 2003-07-02 2006-10-12 Joop Roodenburg Mobile crane
US7370767B2 (en) * 2003-07-03 2008-05-13 Itrec B.V. Mobile crane
US20180179029A1 (en) * 2014-12-23 2018-06-28 Manitowoc Crane Companies, Llc Crane 3d workspace spatial techniques for crane operation in proximity of obstacles
US10822208B2 (en) * 2014-12-23 2020-11-03 Manitowoc Crane Companies, Llc Crane 3D workspace spatial techniques for crane operation in proximity of obstacles
US20170144870A1 (en) * 2015-11-19 2017-05-25 Pride Bodies Ltd. Crane Support Assembly
US10654693B2 (en) * 2015-11-19 2020-05-19 Pride Bodies Ltd. Crane support assembly
CN112723190A (zh) * 2020-12-31 2021-04-30 江阴建禾钢品有限公司 一种用于塔吊钢结构的基础底座
CN113997022A (zh) * 2021-11-22 2022-02-01 沪东中华造船(集团)有限公司 一种重吊船克令吊基座制作方法及克令吊基座

Also Published As

Publication number Publication date
DE2127424B2 (de) 1972-10-26
GB1291203A (en) 1972-10-04
FR2092660B1 (fr) 1973-11-16
DE2127424A1 (de) 1971-12-16
FR2092660A1 (fr) 1972-01-28

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