US3601939A - Means for connecting together relatively inclined reinforced concrete supporting members - Google Patents

Means for connecting together relatively inclined reinforced concrete supporting members Download PDF

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Publication number
US3601939A
US3601939A US808533A US3601939DA US3601939A US 3601939 A US3601939 A US 3601939A US 808533 A US808533 A US 808533A US 3601939D A US3601939D A US 3601939DA US 3601939 A US3601939 A US 3601939A
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members
anchor
reinforced concrete
abutment surfaces
concrete
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Expired - Lifetime
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US808533A
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English (en)
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Hugh Mary Clyne
Peter Joseph Faherty
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    • 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
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/20—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material
    • E04B1/21—Connections specially adapted therefor
    • E04B1/215—Connections specially adapted therefor comprising metallic plates or parts

Definitions

  • the abutting surfaces of the members are stepped and anchor devices consisting of a triangular assembly of metal elements are embedded in the end of each member and arranged so that one element of each anchor device is in axial alignment with one element of the other anchor device, said elements intersecting the stepped surface and at least one of said elements being tubular to receive the end of a connecting bar, while tie bolts extend between the anchor devices to clamp them together.
  • the object of the invention is substantially to eliminate the disadvantages above mentioned and to provide a neat and effective joint between two reinforced concrete members, such as a rafter and its supporting stanchion, in a relatively simple manner.
  • each reinforced concrete member there is cast in the end of each reinforced concrete member to be connected an anchor device consisting of a triangular assembly of metal element having a pair of struts welded to the third element which takes the form of a tube or bar, said third element being positioned so that when the elongated members are assembled together to make the desired joint they are in axial alignment and are connected by a connecting bar, while one of the struts in each anchor device lies substantially normal to the longitudinal axis of the member in which it is embedded, and provides abutments for clamping means to secure the elongated members together.
  • the third element of the anchor device referred to is tubular, and the joint is made by inserting a connecting bar in the tubular portion where it intersects the abutment surface of said member, then positioning the other member so that the complementary abutment surfaces are in abutting relation, the projecting portion of the bar being engaged in the tubular portion of the last mentioned member, and finally applying clamping means to the outwardly extending legs of the anchor devices to prevent them from being moved in a direction away from each other.
  • the rod is preferably grouted in position within the tubular portion of the anchor device. if desired, however, the connecting rod may form a permanent part of one of the anchor devices, replacing the tubular portion thereof.
  • the clamping means advantageously consists of a pair of bolts spaced apart in parallel relation and passed through bores provided for that purpose in the reinforced concrete members and through corresponding holes drilled in steel angle members welded to the aforesaid outwardly projecting legs of the anchor devices and transversely disposed with respect to the longitudinal axes of the reinforced concrete members upon the side thereof which defines the external angle between the members.
  • the latter are preferably enlarged laterally to provide abutting portions of said members adjacent to the bolts of the clamping means.
  • the surfaces of the two members which abut where the ends of the members meet are preferably arranged to provide a step approximately at the point where the tubular portions of-the anchor devices intersect said surfaces, the surface of said step lying approximately perpendicular to the longitudinal axis of one of the members, while the remaining portions of said abutting surfaces lie approximately perpendicular to the longitudinal axis of the other member.
  • the step thus serves to resist any shearing component of the forces acting at the joint, at least in the only direction in which they are likely to occur.
  • FIG. ii is side elevation of the anchor device according to the invention, the abutting portions of the reinforced concrete members in which it is located being indicated by broken lines,
  • H6. 2 is a perspective view showing by way of example and to a reduced scale, the reinforced concrete members in the position which they may occupy in the frame of a building,
  • FIG. 3 is an enlarged perspective view of portions of the reinforced concrete members shown in F 116. ll,
  • d isanexploded view of the anchor device employed in the construction shown in H6. 3, and
  • H68. 5, b and 7 show more or less diagrammatically details of the construction shown in FIG. 2.
  • FIG. 2 shows a construction of reinforced concrete members for which the invention is particularly useful, namely for the connection of a reinforced rafter l to a supporting reinforced concrete post 2.
  • Posts 2 and rafters l for use in constructing the frame of a building will normally be precast individually and assembled together on the building site, and this may be eflected in an extremely simple and advantageous manner by the aid of connecting means according to the invention.
  • Said means comprise anchor devices which are embedded in the ends of the respective members ii and 2 to be connected and which consist essentially of a metal tube 3 welded to struts d and 5 in triangular formation.
  • the abutting surfaces of the members l and 2 are preferably shaped so that portions 6 and I are substantially normal to the longitudinal axis A-A of the member ll, while an intermediate portion 8 is normal to the axis BB of the member 2.
  • the intermediate portion b provides a step, and the triangular anchor devices are located so that the axis of the tubes 3, which are in alignment, intersects the step, while the struts d are substantially normal to the axis A-A of member 11.
  • angle pieces Ml and iii are welded to the upper ends of the struts i, d, as shown in FlGS. l and 4. Said angle pieces thus constitute laterally extending legs. and near each end they are apertured to receive tie-bolts l2 in the final assembly. in this way the angle pieces l0 and ill and the struts d to which they are welded serve as abutments opposed to the pressures exerted by the bolts 12.
  • the reinforced concrete members are cast separately, in accordance with well-known methods, the anchor devices being disposed in the molds so that the upper flange of the angle piece it) will be flush with the upper surface of the member ll while the upper flange of the angle piece ill will be flush with the upper surface of the member h when the parts are assembled as shown in FIG. 2. in the region of the angle pieces the members 1 and 2 are widened and suitable bores are left therein to receive the bolts it in the mbled structure.
  • the members i and 2 after being cast, are conveyed to the site where the building, in which they are required to serve respectively as a rafter and a supporting post or stanchion, is being erected.
  • the members it and 2 are then placed together in end-to-end relation, a connecting bar, 9 first having one end inserted in the tubular element 3 of the member 2 in which it is preferably grouted, the other end of the bar 9 similarly entering the tubular element 3 of the member 1, and bolts 12 are then inserted as shown in FIGS. 1 and 3 and tightened by applying the nuts l3, 14.
  • the structural member thus provided by the combined stanchion and rafter is then ready to take its position in the frame of a building, in which the upper end of the rafter member 1 may, for example, be bolted by a bolt 16 to the corresponding end of rafter member of a similar structural member as indicated in FIG. 2.
  • the design and arrangement of the reinforcement in the members i and 2 is a matter of choice and may be carried out in accordance with well known principles.
  • FIGS. 6 and 7 indicate diagrammatically an advantageous disposition of said reinforcement.
  • one of said tubular elements may be replaced by the connecting bar 9 which will in that case be welded to the struts of one of the anchor devices with portion of the bar 9 projecting from the end of one of the reinforced concrete members in readiness for inserting in the tubular element 3 of the other member when the two members 1 and 2 are being assembled together.
  • two precast reinforced concrete members of elongated form may be joined in end-to-end relation and with their axes relatively inclined with a very strong and neat joint and without the necessity for cumbersome projections'to provide a crutch on the side which defines the interior angles between the members. It is also possible to avoid any protruberances on the surfaces of the members where they meet on the exterior side of angle formed by members, this being particularly desirable where one of the members is a rafter and the other member a stanchion supporting same, as indicated, for example, in FIG. 2.
  • the stanchion member or post 2 is shown as being extended on the side remote from the member 1 where the cave of the roof will terminate so as to overhang the wall post 2 as is customary in constructing farm buildings, dwelling houses and so forth.
  • a pair of reinforced concrete members having means for joining them together in end-to-end relation with their longitudinal axes relatively inclined with respect to each other, said means for joining said concrete members comprising a metal anchor device in the end of each concrete member, each anchor device including a triangular assembly formed of three metal elements connected adjacent their ends, said triangular assemblies being respectively embedded in the end of each member and arranged so that one element of one anchor device is in axial alignment with one element of the other anchor device when in abutted assembled relation, linear means inserted in the axially aligned elements of the anchor members to hold the aligned elements in linear position, and connecting means attached to said triangular assemblies and including tie means passing through the concrete members in positions transversely spaced from said triangular assemblies for connecting elements of the respective anchor members to clamp the anchor devices and concrete members together.
  • a pair of reinforced concrete members having means for joining them together in end-to-end relation with their longitudinal axes relatively inclined as claimed in claim 1, wherein the concrete members have stepped abutment surfaces individual parts of which are normal to the longitudinal axis of one of the concrete members, the anchor members each have one metal element disposed parallel to but spaced from the abutment surfaces normal to the longitudinal axis of one 25" concrete member, and the tie means traverses the abutment surfaces normal to the longitudinal axis of one concrete member and the portion of the connecting means attached to said triangular assemblies comprises angle members oriented parallel to those abutment surfaces and welded to said triangular members.
  • a pair of reinforced concrete members having means for joining them together in end-to-end relation with their longitudinal axes relatively inclined as claimed in claim 2, wherein the elements of the anchoring devices in axial alignment intersect portions of the abutment surfaces oriented at an acute angle with respect to the longitudinal axis of said one concrete member.
  • a pair of reinforced concrete members having means for joining them together in end-to-end relation with their longitudinal axes relatively inclined as claimed in claim 3, wherein the tie means traversing the abutment surfaces are tie bolts which extend through apertures in said angle members.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Joining Of Building Structures In Genera (AREA)
US808533A 1968-03-22 1969-03-19 Means for connecting together relatively inclined reinforced concrete supporting members Expired - Lifetime US3601939A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IE336/68A IE31994B1 (en) 1968-03-22 1968-03-22 Improvements in relatively inclined reinforced concrete supporting members

Publications (1)

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US3601939A true US3601939A (en) 1971-08-31

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US808533A Expired - Lifetime US3601939A (en) 1968-03-22 1969-03-19 Means for connecting together relatively inclined reinforced concrete supporting members

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US (1) US3601939A (fr)
DE (1) DE6911313U (fr)
FR (1) FR2004561A1 (fr)
GB (1) GB1266905A (fr)
IE (1) IE31994B1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4589157A (en) * 1982-01-29 1986-05-20 Bouygues Apparatus for the construction of a bridge floor and similar structures, and constructions which are obtained
US5581961A (en) * 1992-12-07 1996-12-10 Nanayakkara; Lakdas Portal frame system
US6050033A (en) * 1997-01-31 2000-04-18 Wrightman; Ronald A. Bolted post and beam
US20090133359A1 (en) * 2004-07-23 2009-05-28 Kauppila Richard W Structural member joints
US8528268B1 (en) * 2010-12-02 2013-09-10 Component Manufacturing Company Trilateral bracing structure for reinforcing a building frame structure

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US958276A (en) * 1909-12-06 1910-05-17 Warren Pence Joint.
US1474148A (en) * 1920-07-29 1923-11-13 Ralph Z Hopkins Building construction
US2038967A (en) * 1934-05-25 1936-04-28 Pierce John B Foundation Composite building unit
US2569669A (en) * 1946-02-27 1951-10-02 Peoples First Nat Bank & Trust Beam connection for precast concrete members
GB736648A (en) * 1953-07-29 1955-09-14 Stanton Ironworks Co Ltd Improvements relating to reinforced concrete columns
US2783721A (en) * 1950-09-09 1957-03-05 Eric C Molke Wide span structures
GB861677A (en) * 1955-11-28 1961-02-22 Gwylon Isaac An improved joint for reinforced and prestressed concrete members of a portal framework
GB861676A (en) * 1955-11-28 1961-02-22 Gwylon Isaac Improvements relating to reinforced and prestressed concrete rafters
US3150463A (en) * 1960-12-19 1964-09-29 J A Nearing Co Inc Greenhouse

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US958276A (en) * 1909-12-06 1910-05-17 Warren Pence Joint.
US1474148A (en) * 1920-07-29 1923-11-13 Ralph Z Hopkins Building construction
US2038967A (en) * 1934-05-25 1936-04-28 Pierce John B Foundation Composite building unit
US2569669A (en) * 1946-02-27 1951-10-02 Peoples First Nat Bank & Trust Beam connection for precast concrete members
US2783721A (en) * 1950-09-09 1957-03-05 Eric C Molke Wide span structures
GB736648A (en) * 1953-07-29 1955-09-14 Stanton Ironworks Co Ltd Improvements relating to reinforced concrete columns
GB861677A (en) * 1955-11-28 1961-02-22 Gwylon Isaac An improved joint for reinforced and prestressed concrete members of a portal framework
GB861676A (en) * 1955-11-28 1961-02-22 Gwylon Isaac Improvements relating to reinforced and prestressed concrete rafters
US3150463A (en) * 1960-12-19 1964-09-29 J A Nearing Co Inc Greenhouse

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4589157A (en) * 1982-01-29 1986-05-20 Bouygues Apparatus for the construction of a bridge floor and similar structures, and constructions which are obtained
US5581961A (en) * 1992-12-07 1996-12-10 Nanayakkara; Lakdas Portal frame system
US6050033A (en) * 1997-01-31 2000-04-18 Wrightman; Ronald A. Bolted post and beam
US20090133359A1 (en) * 2004-07-23 2009-05-28 Kauppila Richard W Structural member joints
US7815391B2 (en) 2004-07-23 2010-10-19 Kauppila Richard W Structural member joints
US8528268B1 (en) * 2010-12-02 2013-09-10 Component Manufacturing Company Trilateral bracing structure for reinforcing a building frame structure

Also Published As

Publication number Publication date
GB1266905A (fr) 1972-03-15
DE6911313U (de) 1969-09-04
IE31994B1 (en) 1973-03-07
IE31994L (en) 1969-09-22
FR2004561A1 (fr) 1969-11-28

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