US3431694A - Rhombic girder - Google Patents

Rhombic girder Download PDF

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Publication number
US3431694A
US3431694A US533287A US3431694DA US3431694A US 3431694 A US3431694 A US 3431694A US 533287 A US533287 A US 533287A US 3431694D A US3431694D A US 3431694DA US 3431694 A US3431694 A US 3431694A
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United States
Prior art keywords
boom
girder
rhombic
individual parts
lower boom
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.)
Expired - Lifetime
Application number
US533287A
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English (en)
Inventor
Emil Mauritz Hunnebeck
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Huennebeck AG
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Huennebeck AG
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Filing date
Publication date
Application filed by Huennebeck AG filed Critical Huennebeck AG
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Publication of US3431694A publication Critical patent/US3431694A/en
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C3/08—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with apertured web, e.g. with a web consisting of bar-like components; Honeycomb girders
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D15/00—Movable or portable bridges; Floating bridges
    • E01D15/12—Portable or sectional bridges
    • E01D15/133—Portable or sectional bridges built-up from readily separable standardised sections or elements, e.g. Bailey bridges
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38—Connections for building structures in general
    • E04B1/58—Connections for building structures in general of bar-shaped building elements
    • E04B1/5806—Connections for building structures in general of bar-shaped building elements with a cross-section having an open profile
    • E04B1/5812—Connections for building structures in general of bar-shaped building elements with a cross-section having an open profile of substantially I - or H - form
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38—Connections for building structures in general
    • E04B1/58—Connections for building structures in general of bar-shaped building elements
    • E04B1/5825—Connections for building structures in general of bar-shaped building elements with a closed cross-section
    • E04B1/5837—Connections for building structures in general of bar-shaped building elements with a closed cross-section of substantially circular form
    • E04B1/5843—Connections for building structures in general of bar-shaped building elements with a closed cross-section of substantially circular form with ends provided with protuberances
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
    • E04G11/36—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for floors, ceilings, or roofs of plane or curved surfaces end formpanels for floor shutterings
    • E04G11/48—Supporting structures for shutterings or frames for floors or roofs
    • E04G11/50—Girders, beams, or the like as supporting members for forms
    • E04G11/52—Girders, beams, or the like as supporting members for forms of several units arranged one after another
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
    • F16B5/02—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of fastening members using screw-thread
    • F16B5/0216—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of fastening members using screw-thread the position of the plates to be connected being adjustable
    • F16B5/0233—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of fastening members using screw-thread the position of the plates to be connected being adjustable allowing for adjustment perpendicular to the plane of the plates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
    • F16B7/18—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections using screw-thread elements
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0486—Truss like structures composed of separate truss elements
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0486—Truss like structures composed of separate truss elements
    • E04C2003/0491—Truss like structures composed of separate truss elements the truss elements being located in one single surface or in several parallel surfaces

Definitions

  • each of the booms includes a plurality of individual parts abutting each other.
  • One of the parts of the lower boom is provided at its end with a pin having an outer face extending parallel to the longitu- ⁇ dinal axis of the lower boom.
  • Another of the parts of the lower boom adjacent to the one of the parts provided with a recess disposed opposite the pin and has an outer ⁇ face disposed complementary to the outer face of the pin', so that cross-forces of one of the lower booms are transmitted to another of the lower booms.
  • Clamping means holding together the lower booms in the longitudinal direction, and distancing holders of variable length connecting together pressure-fast the lower booms.
  • the present invention relates to a rhombic girder composed of a plurality of individual parts and in particular to a joint connection in the lower boom of girders composed of a plurality of individual parts, in particular of rhombic girders.
  • rhombic girders in which struts are disposed crosswise relative to each other between the upper boom and the lower boom and thus rhombs standing on their points are formed between the strut crosses, have the great advantage that due to the crossing of diagonal struts, the collapsing length of the diagonal struts exposed to pressure is reduced to about half. For this reason, rhombic girders are suitable for the manufacture of supporting structures, particularly advantageously as girders on two or more supports.
  • the supporting structure must be divided into individual elements and assembled on the structural side.
  • the individual parts are constructed such, that one of the diagonal struts engages each end of the upper boom and of the lower boom, respectively.
  • camber of the girder is required, the known rhombic girders composed of a plurality of parts have the further appreciable drawback, that the camber is not Varlable, that is during the assembly of the individual parts no selective upwardly extending design can be provided for the rhombic girder.
  • the known rhombic girders are thus not suitable for the manufacture of scaifolds, for instance, vas a supporting girder for the manufacture of bridges or other heavy steel-concrete structures, unless for the compensation of the occurring elastic bending through upon application of a load, a bottom lining of the boarding mounted on the girder is provided, which boarding must be increased towards the center of the girder, in order to give to the boarding itself an upward vault design.
  • Such measure leads, however, technically to difficulties and requires appreciable expenses.
  • so-called camber of the girder can be obtained by coupling nuts by which the lower boom of the individual parts of the girder are connected together and which can be expanded or shortened, so that the girder composed of two or more individual parts can be cambered, in order to obtain a plane bottom view of the structure by shortening the coupling nuts and upon finishing of the concrete ceiling or the like it can -be lowered again by extension of the coupling nuts, in order to remove it from the supports without any difficulty, on which supports it rests at its ends.
  • one object of the present invention to provide a rhombic girder wherein the upper'boom connection and the lower boom connection of two individual parts can transmit normal and cross forces, and furthermore, wherein the lower boom connection is adjustable in the longitudinal direction, in order to permit a camber of the girder and in which also the upper boom connection can be adjusted to the angular change resulting from the longitudinal change of the lower boom connection, in order to avoid an eccentric force engagement in the two engaging upper boom ends, which force engagement would reduce the loadability of the upper boom.
  • clamping or tensioning means preferably screw bolts, and pressure fast connected with each other by distancing holders of a variable length, preferably pairs of screw nuts disposed on the tensioning means bolts between the end faces of the lower boom.
  • tensioning means preferably screw bolts and are held apart from each other in such distance of the end faces by preferably annular distancing holders surrounding the tensioning means, which distancing holders are received in corresponding recesses in the end faces of the upper boom, non-displaceably in the vertical direction, that the upper boom tips about the distance holders and are capable of forming an obtuse angle relative to each other.
  • This structure makes it possible, that the one part element can :slide from the side in front of the other part element and thereby brings into engagement the pin and the slotted guide member and wherein by simple adjustment of the pair of screw nuts, the distance between the end faces of the lower boom and thereby the camber of the girder can be measured.
  • the base plates can be inserted by means of a templet, into which, on the one hand, the pin and the slotted guide member, respectively, are inserted and which, on the other hand, is set to the screw connection in the upper boom, and the base plates can be welded to the end faces of the lower boom such, that at all individual parts the guide faces on the pins and on the guide member have the same distance from the axis of the screw connection in the upper boom.
  • FIG. 1 is an elevation of a center piece of a rhombic framework girder
  • FIG. 2 is an elevation of the lower boom connection of two individual parts of the girder at an enlarged scale
  • FIG. 3 is an end view of the right end of the lower boom, shown in FIG. 2;
  • FIG. 4 is an end view of the left end of the lower boom, shown in FIG. 2;
  • FIG. 5 is an elevation of the upper boom connection of two individual parts of the girder, at an enlarged scale
  • FIG. 6 is an end view of one of the two ends of the upper boom, disclosed in FIG. 5;
  • FIG. 7 is an end view of the other of the two ends of the upper boom disclosed in FIG. 5.
  • the girder comprises an upper boom 11 and a lower boom 12, as well as, in addition to several vertical and horizontal struts, struts 13, disposed diagonally between the -upper boom and the lower boom, which struts 13 cross each other at their center, so that between the upper boom and the lower boom a so-called rhombic framework is formed, which has between the strut crosses rhomb-shaped framework faces, which are standing on end.
  • the diagonal struts 13 ' are arranged and are distributed over the length of the individual parts of the girder such, that a diagonal strut engages directly at each end of the upper boom 11 and of the lower boom 12, respectively.
  • the ends of the booms of the individual parts of the girdens must be connected with each other such, that the boom connections can transmit normal forces effective in the longitudinal direction of the booms, as well as cross-forces effective crosswise to the longitudinal direction of the booms.
  • the upper boom ends of the center pieces of the girder are disposed symmetrically and the ends of the lower booms asymmetrically, as will be disclosed below.
  • An end member of the girder would be distinguished from the center member of the girder, shown in F'IG. l, by the fact that at its end of the upper boom, the normal connecting part is replaced by a correspondingly designed support. Simultaneously, on the same side the lower boom connection and the last framework triangle can be deleted.
  • FIGS. 2-4 the design of the lower boom connection of two individual parts of the girder are shown in greater detail.
  • the end faces of the lower booms are formed by means of a strong head plate 14, which is welded during the formation of the individual parts of the girder to the ends of the lower boom 12 and to the diagonal strut 13 engaging at said points.
  • a ground plate 15 is welded to the head plate '14 of one part member, which ground plate 15 carries a horizontal, rectangular pin 16 with an upper and a lower effective outer face 1 (FIG.
  • each individual part of the girder has at one end of the lower boom a pin 16 and on the other end of the lower boom, a guide member 17.
  • 3 and 4 show that a corresponding bore 3 i-s provided in the head plate 14 on both sides of the pin 16 and of the guide member 17, respectively, through which bore 3 during the assembly of the individual parts of the girder a screw bolt 2 is extended.
  • a screw bolt 2 is extended between the head plates 14 between the head plates 14 between the head plates 14 disposed two nuts 5 and 6, screwed to the screw bolts 2, and against which nuts 5 and 6 the headplat'es 14 of the two ends of the lower boom are supported and which are effective as distance holders 'variable as to their length.
  • a nut 4 is screwed on the screw bolt 2, by means of which nut 4, the two ends of the lower boom are pulled ltogether.
  • the screw bolt 2 and the nut 4 By means of the screw bolt 2 and the nut 4, during a loading of the individual parts of the girder, the pulling forces are transmitted from one lower boom to the other lower boom.
  • the distance between the two head plates 14 can be reduced in order to camber the two individual parts connected together for a desired amount, that means, in order to form the line formed by the upper booms cambered in upward direction, so that when the girder composed of the individual parts is used as a supporting carrier, for instance, for the manufacture of bridges or other heavy concrete structures and which bends through under the load of the struct-ure material elastically downwardly, a plane structural work bottom view is obtained.
  • the individual parts By releasing the nut 4, the individual parts can then later be lowered again, in order to take them out easier from the boarding structure.
  • the lower boom connection that means, the pin and the guide member can @be designed, as a matter of course, also in different forms.
  • FIGS. 5 and 6 a particularly advantageous embodiment of the upper boom connection of two individual parts of the -girder is disclosed.
  • the end face of the upper boom of each individual part is formed by a head plate 7, which is welded to the upper boom 11 and to the engaging diagonal strut 13.
  • the head plates 7 are equipped with two bores 18, through which during the assembly of individual parts two thread bolts 8 extend, on the ends of which nuts 10 are screwed on.
  • the head plates 7 are equipped with round recesses 18a such, that during assembly of the individual parts in two oppositely disposed recesses a corresponding round distancing member 9 is inserted, which is equipped with a centrally disposed bore, through which the threaded bolts 8 can extend.
  • the thickness of the distancing members 9 is measured such, that the head plates 7 upon tightening of the nuts 10 are disposed at a short distance from each other.
  • the ground faces of the recesses and correspondingly the end faces of the dis- Atance holder members are slightly ball shaped. The effect of the distance holders 9 is as follows. Due to the longitudinal adjustability of the lower boom connection, a slight angular variation of the upper boom connection results.
  • FIG. 1 shows that the upper boom connections at both ends of the upper boom of each girder part are equally formed.
  • the pin 16 and the guide member 17, respectively have at the end of the lower boom an equal distance of the axis of the screw connection on the end of the upper boom and, thereby, during assembly of a girder from a plurality of individual parts no complications occur, the welding of the head plate 14 to the ground plate 15 with the pin 16 and to the guide member 17, respectively, takes place and in the simplest and safest manner by means of a templet, one end of which is inserted for instance, in the bores 18 of the upper boom head plates 7 and, on the other end of which the pin 16 and the guide member 17 are properly secured.
  • a rhombic girder composed of a plurality of individual parts, comprising an upper boom and a lower boom,
  • each of said booms including a plurality of individual parts abutting each other
  • one of said parts of said lower -boom provided at its end with a pin having an outer face extending parallel to the longitudinal axis of said lower boom,
  • clamping means holding together said lower booms in the longitudinal direction
  • annular ⁇ distancing means surrounding said clamping means holding said upper booms of said individual parts in such distance between the respective end faces of the latter, that said upper booms are capable of tipping about said distancing holders and capable of forming an obtuse angle relative to each other, .and
  • said end faces of said upper booms having recesses receiving said distancing holders immovably in the vertical direction.
  • a -guide member having a horizontal slot and secured to the other of said lower booms, said pin being guided vertically immovably, but horizontally regiovably in said horizontal slot of said guide memsaid clamping means connecting said lower booms, and
  • said distancing holder of variable length insertable between each pair of oppositely disposed end faces of said lower booms and consisting of Ia pair of screw nuts, the latter being disposed on a threaded center portion of said clamping means.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Bridges Or Land Bridges (AREA)
  • Rod-Shaped Construction Members (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
  • Joining Of Building Structures In Genera (AREA)
US533287A 1965-03-12 1966-03-10 Rhombic girder Expired - Lifetime US3431694A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEH51402U DE1925381U (de) 1965-03-12 1965-03-12 Rautentraeger.

Publications (1)

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US3431694A true US3431694A (en) 1969-03-11

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US533287A Expired - Lifetime US3431694A (en) 1965-03-12 1966-03-10 Rhombic girder

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US (1) US3431694A (US07608600-20091027-C00054.png)
AT (1) AT253751B (US07608600-20091027-C00054.png)
BE (1) BE677704A (US07608600-20091027-C00054.png)
CH (1) CH447556A (US07608600-20091027-C00054.png)
DE (1) DE1925381U (US07608600-20091027-C00054.png)
GB (1) GB1080628A (US07608600-20091027-C00054.png)
NL (1) NL6603251A (US07608600-20091027-C00054.png)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4811829A (en) * 1986-05-10 1989-03-14 Hitachi Ltd . Frame of passenger conveyor
EP0869233A1 (en) * 1997-04-04 1998-10-07 Encofrados J. Alsina, S.A. Joist for formwork
WO2000037748A1 (en) * 1998-12-19 2000-06-29 Kubik Leszek A Structural trusses
ES2156682A1 (es) * 1998-10-05 2001-07-01 Peri S A Dispositivo de union para vigas de encofrado.
US6539571B1 (en) * 1999-07-07 2003-04-01 Mabey & Johnson Limited System for constructing lattice panel bridges
ES2258933A1 (es) * 2005-07-11 2006-09-01 Ingenieria De Encofrados Y Servicios, S.L. Viga correa con terminales acoplables.
US20120324827A1 (en) * 2011-06-25 2012-12-27 James Forero Bracing system for reinforcing beams
FR3056996A1 (fr) * 2016-09-30 2018-04-06 Matiere Pont a structures en treillis
US10465373B2 (en) 2016-07-28 2019-11-05 Cole David Kazuyuki TURNER Integrated structural member

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3331379A1 (de) * 1983-08-31 1985-03-07 Ewald 4600 Dortmund Rüter Knotenpunktverbindung fuer ein fachwerk aus stabelementen
US4647257A (en) * 1985-02-22 1987-03-03 Robishaw Engineering, Inc. Method and apparatus for constructing elevated structures
DE4109051A1 (de) * 1991-03-15 1992-09-17 Saalfelder Hebezeugbau Gmbh Stoss- und anschlussausbildung fuer i-artiges leichtbauprofil mit hohlflanschen

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2308565A (en) * 1940-08-15 1943-01-19 Kochring Company Structural unit
US2403338A (en) * 1943-05-05 1946-07-02 Harris & Sheldon Ltd Means for positioning drawinglayout tables
US2565065A (en) * 1947-09-04 1951-08-21 John B Chakeres Clamp
US2694609A (en) * 1953-09-22 1954-11-16 Thomas L Trafford Interlocking connecting table
GB769453A (en) * 1954-08-20 1957-03-06 May Lilian Grundy Improvements in or relating to walls, partitions, doors, and like structures
US2905284A (en) * 1954-12-22 1959-09-22 Hinze Otto Upper chord locking device for falsework carriers
US2985264A (en) * 1954-10-19 1961-05-23 Julius G Forstmann Form supporting girder
US3058132A (en) * 1957-08-15 1962-10-16 Hedstrom Ake Substructure of interchangeable building components with overlying carriageway
US3062340A (en) * 1956-04-18 1962-11-06 Hunnebeck Emil Mauritz Girder units and connecting members

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2308565A (en) * 1940-08-15 1943-01-19 Kochring Company Structural unit
US2403338A (en) * 1943-05-05 1946-07-02 Harris & Sheldon Ltd Means for positioning drawinglayout tables
US2565065A (en) * 1947-09-04 1951-08-21 John B Chakeres Clamp
US2694609A (en) * 1953-09-22 1954-11-16 Thomas L Trafford Interlocking connecting table
GB769453A (en) * 1954-08-20 1957-03-06 May Lilian Grundy Improvements in or relating to walls, partitions, doors, and like structures
US2985264A (en) * 1954-10-19 1961-05-23 Julius G Forstmann Form supporting girder
US2905284A (en) * 1954-12-22 1959-09-22 Hinze Otto Upper chord locking device for falsework carriers
US3062340A (en) * 1956-04-18 1962-11-06 Hunnebeck Emil Mauritz Girder units and connecting members
US3058132A (en) * 1957-08-15 1962-10-16 Hedstrom Ake Substructure of interchangeable building components with overlying carriageway

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4811829A (en) * 1986-05-10 1989-03-14 Hitachi Ltd . Frame of passenger conveyor
EP0869233A1 (en) * 1997-04-04 1998-10-07 Encofrados J. Alsina, S.A. Joist for formwork
ES2156682A1 (es) * 1998-10-05 2001-07-01 Peri S A Dispositivo de union para vigas de encofrado.
WO2000037748A1 (en) * 1998-12-19 2000-06-29 Kubik Leszek A Structural trusses
GB2360051A (en) * 1998-12-19 2001-09-12 Kubik Leszek A Structural trusses
GB2360051B (en) * 1998-12-19 2003-01-29 Kubik Leszek A Structural trusses
US6539571B1 (en) * 1999-07-07 2003-04-01 Mabey & Johnson Limited System for constructing lattice panel bridges
ES2258933A1 (es) * 2005-07-11 2006-09-01 Ingenieria De Encofrados Y Servicios, S.L. Viga correa con terminales acoplables.
WO2007006825A1 (es) * 2005-07-11 2007-01-18 Sistemas Técnicos De Encofrados, S.A. Viga correa con terminales acoplables
US8051626B2 (en) 2005-07-11 2011-11-08 Sistemas Technicos De Encofrados, S.A. Purlin beam with connectable terminals
US20120324827A1 (en) * 2011-06-25 2012-12-27 James Forero Bracing system for reinforcing beams
US10465373B2 (en) 2016-07-28 2019-11-05 Cole David Kazuyuki TURNER Integrated structural member
US10982426B2 (en) 2016-07-28 2021-04-20 Cole David Kazuyuki TURNER Integrated structural member
FR3056996A1 (fr) * 2016-09-30 2018-04-06 Matiere Pont a structures en treillis

Also Published As

Publication number Publication date
GB1080628A (en) 1967-08-23
CH447556A (de) 1967-11-30
DE1925381U (de) 1965-10-14
NL6603251A (US07608600-20091027-C00054.png) 1966-09-13
AT253751B (de) 1967-04-25
BE677704A (US07608600-20091027-C00054.png) 1966-08-01

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