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WO2007015700A1 - Procédé et structure utilisant une action d’orientation pour stabiliser la géométrie d’une extrémité de poutre en i - Google Patents

Procédé et structure utilisant une action d’orientation pour stabiliser la géométrie d’une extrémité de poutre en i Download PDF

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Publication number
WO2007015700A1
WO2007015700A1 PCT/US2005/030318 US2005030318W WO2007015700A1 WO 2007015700 A1 WO2007015700 A1 WO 2007015700A1 US 2005030318 W US2005030318 W US 2005030318W WO 2007015700 A1 WO2007015700 A1 WO 2007015700A1
Authority
WO
WIPO (PCT)
Prior art keywords
mounting component
end mounting
weld
spring
mentioned
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.)
Ceased
Application number
PCT/US2005/030318
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English (en)
Inventor
Robert J. Simmons
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US11/194,864 external-priority patent/US7051918B2/en
Application filed by Individual filed Critical Individual
Publication of WO2007015700A1 publication Critical patent/WO2007015700A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00—Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass
    • B23K37/04—Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass for holding or positioning work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2101/00—Articles made by soldering, welding or cutting
    • B23K2101/28—Beams

Definitions

  • This invention pertains to a method utilizing beam-long-axis spring biasing action for stabilizing the transverse (across the long axis) cross-sectional footprint of the end of a structural I-beam to which an end mounting component is to be precision oriented and welded in preparation for attaching the beam to the side of a column in a precision building frame structure.
  • Dual-action spring biasing is specifically employed to urge the end of a beam and a beam end mounting component tightly against one another during weld joining of such a beam end and mounting component.
  • a certain amount of transverse cross-sectional configuration distortion, or deformation can occur as the beam cools from the heated rolling or fabrication process.
  • this deformation usually involves angulation of one or both flanges out of a designed and intended condition of right-angularity, or parallel planarity, relative to the beam's central web.
  • Such deformation is, for a number of reasons, undesirable.
  • One important reason involves the issue of precision preparing of a beam for installation in a close-tolerance, precision building frame.
  • a warped-cross-section beam can, under such a circumstance, create a problem. It is this kind of deformation which the method of the present invention successfully and easily addresses, thus to "clear the way" for successful and unproblematic use of otherwise ordinarily rolled or fabricated beams in a precision-installation mode of building frame assembly.
  • the proposed beam-end "footprint correctness" stabilization includes the steps of (a) configurationally correcting and spring biasedly capturing the end transverse footprint of such a beam with an external structure to lock that footprint against subsequent configuration change, and (b) while so capturing, weld-attaching that end transverse footprint to a beam-end mounting component.
  • Another manner of expressing the method of this invention is to describe it as including the steps of (a) assuring the presence, at the mentioned beam end, of a configurationally correct transverse cross section having a defined male attaching portion, (b) forming, in a beam-end mounting component's attaching side, at least a partial, matching-cross-section, female reception structure, or receptor, which is adapted snuggly to receive, complementarily, the correctly cross-sectioned male attaching portion of the mentioned beam end, (c) inserting the beam-end male attaching portion into the beam-end mounting component's female reception structure to produce a weld-poised, captured condition between the beam end and the beam-end mounting component, (d) utilizing spring biasing to aid in holding and stabilizing the weld-poised condition, and (e) while holding that weld-poised condition, producing a weld between the beam end and the beam-end mounting component.
  • Fig. 1 is a fragmentary side elevation of an end of an I-beam which is conventional except for the presence of a certain pre-weld, beam end preparation made as a part of practice of the present invention. No beam distortion is shown in this figure.
  • Fig. 2 is a transverse cross-sectional view of the I-beam of Fig. 1 , taken generally along the line 2-2 in Fig. 1.
  • Solid lines in Fig. 2 show the proper design configuration intended for the transverse cross-sectional footprint of this beam, and dashed lines are employed, in an exaggerated manner, to illustrate a condition of possible initial rolling- or fabrication-created distortion/deformation which is corrected and managed in accordance with practice of the present invention.
  • Figs. 3A and 3B present illustrations of the "mating faces", or sides, of precision column-side and beam-end collar-form interconnect components constructed in accordance with the disclosure of the above-referenced, prior-filed patent application, and provided herein to give an illustration of a particular setting wherein practice of the present invention offers special utility.
  • Fig. 4 is a view presented on a larger scale than that employed in Fig. 3B showing the prepared face (opposite the face shown in Fig. 3B) of a beam-end mounting component (the "attaching side") which has been readied to be welded to the end of a beam, such as that of the beam shown hi Figs. 1 and 2.
  • Fig. 5 is a view taken generally along the line 5-5 in Fig. 4.
  • dash-triple-dot lines show an I-beam end joined to the illustrated beam-end mounting component.
  • Fig. 6 is a fragmentary and somewhat schematic side view illustrating practice of the present invention involving utilizing a stabilizing jig, and associated, dual- action spring biasing, which are described hereinbelow.
  • Fig. 7 is a view taken generally along the line 7-7 in Fig. 6, presented on a slightly larger scale than that employed in Fig. 6, and rotated 90° clockwise.
  • FIGs. 1 and 2 an end of a "nearly" conventional, elongate I-beam is shown generally at 10. Use of the term “nearly” will shortly be explained.
  • This beam includes a central web 10a, and substantially parallel planar upper and lower flanges 10b, 10c, respectively.
  • Web 10a and flanges 10b, 10c are substantially planar, with the plane of web 10a being shown at 1Oa 1 , and the planes of flanges 10b, 10c being shown at 1Ob 1 , and 1Oc 1 , respectively.
  • plane 1Oa 1 intersects planes 1Ob 1 , 1Oc 1 at right angles.
  • FIG. 1 the intended design (correct) transverse cross-sectional configuration/footprint of beam 10 is shown.
  • this configuration is seen to be distorted, or deformed, angularly in an exaggerated manner.
  • This distortion generally illustrates the kinds of undesirable fabrication deformation which can exist in a conventionally acquired structural I-beam.
  • Figs. 1 and 2 show, at 1Oa 2 , that, with respect to beam 10, and in a step of the invention referred to herein both as an "assuring" step and as a pre-weld preparation step, an axially recessed region of central web 10a has been created.
  • the step of assuring the presence of an appropriate beam-end male attaching portion can be accomplished without creating the mentioned web recessed region.
  • the opposite end (not shown) of beam 10 is prepared in the same fashion. It is because of the "preparation” thus shown at 1Oa 2 that the term “nearly" was employed above this text.
  • a beam- accommodating attaching component 12 which is illustrated in this figure suitably attached (as by welding) to a face 14a in a hollow and tubular, square cross section beam 14.
  • a male cleat 12a which projects toward the viewer, and which includes upper and lateral perimeter under-beveling, as indicated by a dashed line 12b.
  • Shown at 16 in Fig. 3B is a complementary beam-end mounting component which is to be secured, in accordance with practice of the present invention, to an end of a beam, such as to the end of beam 10 shown in Figs. 1 and 2.
  • Component 16 in the face of that component which confronts the viewer in Fig. 3B includes a formed female recess 16a which is adapted, fully complementarily, to receive previously mentioned cleat 12a. It is through complementary interconnection between components 12, 16 that an end of a beam will be attached to a column, such as column 14.
  • Shown in dashed lines at 10 in Fig. 3B is the transverse cross-section, or footprint, of beam 10 illustrated as if attached to the far side of component 16 in Fig.
  • Figs. 4 and 5 here we see illustrated in somewhat greater detail beam-end mounting component 16, this time with (in Fig. 4) the side of that component to which a beam is to be attached facing the viewer. This side is the one that was referred to immediately above as the non-visible, or far, side of component 16 as such was pictured in Fig. 3B.
  • beam 10 with respect to its attached relationship to component 16, is generally pictured in dash- triple-dot lines.
  • Regions 16b are referred to herein collectively as female reception structure, and individually both as female attaching portions, and as female flange- structure reception zones. These regions have the shapes clearly shown for them in these two figures, and as can be seen, regions 16b define appropriate reception shelves, or seats, intended to receive the projecting ends of flanges 10b, 10c in beam 10, with web 10a directly butting against component 16 along the facial region of that component which lies between regions 16b.
  • Another approach to creating a female reception structure might be to create slotted areas in the appropriate face of a beam end component which 1 accommodate both the flanges adjacent a beam end, and the central web end extending between these flanges.
  • an "assurance" is made appropriately to correct any incorrectness in the design end transverse cross section, or footprint, of a beam.
  • suitable correction can be implemented, for example, by applying compressive clamping pressure to the "splayed" portions of flanges 10b, 10c (see arrows 17 the right sides thereof as pictured in Fig.
  • Figs. 6 and 7 illustrate schematically one way in which beam-end and beam- end mounting component weld attachment can be performed.
  • jig structure or beam-reception jig, for accomplishing this activity, including a frame 22 on which is mounted a spring-biased laterally shiftable biasing element 24, also referred to herein as a first biasing element.
  • Element 24 is biased by a biasing spring 26 which tends to urge element 24 to the right in Fig. 6 relative to frame 22 as generally indicated by an arrow, or direction vector, 27 in Fig. 6.
  • shiftable biasing element 28 Carried for lateral reciprocal shifting on and with respect to element 24 is another shiftable biasing element 28 (shown in dashed lines) which is urged by an appropriate biasing spring 30 generally in the direction of arrow, or direction vector, 32 (see Fig. 6) relative to element 24.
  • vectors 27, 32 point in reverse directions.
  • the spring biasing action in jig 20 which is represented by reverse-direction vectors 27, 32 produces what is referred to herein as longitudinal axial compressive interengagement between a beam end and a beam end mounting component. Also, it will be observed by looking at Fig. 6 in the drawings that any change in the level of either one of the two spring biasing forces does not effect any change in the level of the other spring biasing force. With a beam end properly complementarity fitted (assembled into conjunction) with a beam-end mounting component 16, this assembly is brought into appropriate contact with the outwardly exposed portion of element 28 in jig 20, and biasing spring 30 creates a spring-biased attractive force which tends to hold the then associated beam-end mounting component tightly against shiftable element 24 in the jig.
  • the exposed portion of element 28 in jig 20 is shaped with an appropriate male cleat, like previously mentioned cleat 12a, so as to accomplish and accommodate proper reception and complementary fitment of the female prepared outwardly facing side of a beam-end mounting component.
  • Biasing spring 26 tends to urge shiftable element 24 against the assembly of the beam and beam-end mounting component to aid in stabilization.
  • the jig is constructed so that it has a pair of spaced apart structural arrangements much like that schematically pictured in Figs. 6 and 7, whereby opposite ends of an elongate beam, similarly prepared for weld attachment of beam- end mounting components, becomes seated in the jig generally as just described.
  • This just discussed dual spring biasing action further assists in stabilizing opposite beam ends and associated beam end mounting components in weld-poised conditions.
  • any suitable manner which may either be under robotic computer control, or performed manually, appropriate welding takes place along the upper and lower sides of the flanges of the beam, and along the opposite sides of the beam's web, thus to weld-secure the opposite ends of the associated beam with the complementarily fitted beam-end mounting components.
  • transverse cross section deformations found in conventionally fabricated beams are successfully and definitively addressed. They are addressed in a manner which readily enables the precision weld-attachment of beam-end mounting components that allow an associated beam to be employed in close-tolerance, precision building-frame construction.
  • Practice of the invention which involves end footprint-"correcting" of a beam also makes possible and reliable, if desired, computer-controlled, automatic, robotic welding at the ends of beams.

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  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)

Abstract

La présente invention concerne un procédé pour stabiliser de manière correcte la section transversale de l’extrémité d’une poutre porteuse allongée lors de la fixation par soudage à l’extrémité d’un élément de montage d’extrémité de poutre. Ce procédé consiste à : (a) corriger la configuration et à relever l’empreinte transversale d’extrémité d'une telle poutre, en utilisant une action de stabilisation à orientation par ressort, à l’aide d’une structure externe, pour verrouiller cette empreinte contre une modification de configuration ultérieure et (b), tout en effectuant cette étape de relevé d’empreinte stabilisée orientée par ressort, à fixer par soudage l’empreinte transversale de l’extrémité de poutre à l’élément de montage d’extrémité mentionné.
PCT/US2005/030318 2005-07-31 2005-08-25 Procédé et structure utilisant une action d’orientation pour stabiliser la géométrie d’une extrémité de poutre en i Ceased WO2007015700A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/194,864 US7051918B2 (en) 2004-09-08 2005-07-31 Dual-biasing weld-attaching of end components to an elongate element
US11/194,864 2005-07-31

Publications (1)

Publication Number Publication Date
WO2007015700A1 true WO2007015700A1 (fr) 2007-02-08

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PCT/US2005/030318 Ceased WO2007015700A1 (fr) 2005-07-31 2005-08-25 Procédé et structure utilisant une action d’orientation pour stabiliser la géométrie d’une extrémité de poutre en i

Country Status (1)

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WO (1) WO2007015700A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2019684A (en) * 1932-12-17 1935-11-05 Arthur G Leake Structural steel connection
US4626148A (en) * 1983-05-09 1986-12-02 Pringle William L Mount machining assembly
US20050045693A1 (en) * 2003-08-25 2005-03-03 Buchheit Jack G. Adaptable spring force clamping apparatus and methods
US20050055954A1 (en) * 2003-09-14 2005-03-17 Simmons Robert J. Rotational method and apparatus for welding beam-mount structure to the side(s) of a column

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2019684A (en) * 1932-12-17 1935-11-05 Arthur G Leake Structural steel connection
US4626148A (en) * 1983-05-09 1986-12-02 Pringle William L Mount machining assembly
US20050045693A1 (en) * 2003-08-25 2005-03-03 Buchheit Jack G. Adaptable spring force clamping apparatus and methods
US20050055954A1 (en) * 2003-09-14 2005-03-17 Simmons Robert J. Rotational method and apparatus for welding beam-mount structure to the side(s) of a column

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