US2225226A - Reinforcement stirrup assembly - Google Patents

Reinforcement stirrup assembly Download PDF

Info

Publication number
US2225226A
US2225226A US292093A US29209339A US2225226A US 2225226 A US2225226 A US 2225226A US 292093 A US292093 A US 292093A US 29209339 A US29209339 A US 29209339A US 2225226 A US2225226 A US 2225226A
Authority
US
United States
Prior art keywords
stirrups
portions
rods
assembly
stirrup
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
US292093A
Inventor
Frank R Mcfarland
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.)
Sheffield Steel Corp
Original Assignee
Sheffield Steel Corp
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
Application filed by Sheffield Steel Corp filed Critical Sheffield Steel Corp
Priority to US292093A priority Critical patent/US2225226A/en
Application granted granted Critical
Publication of US2225226A publication Critical patent/US2225226A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/01Reinforcing elements of metal, e.g. with non-structural coatings
    • E04C5/06Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional extent, e.g. lattice girders
    • E04C5/065Light-weight girders, e.g. with precast parts

Definitions

  • Fig. 1 is a perspective view of a beam form partly broken away and showing my improved unitary stirrup assembly in position therein.
  • Fig. 2 is a plan view of the stirrup assembly.
  • Fig. 3 is a cross-section through the form showing the chair and spacing elements of the assem bly for positioning the stirrups in the center thereof.
  • Fig. 4 is a similar section after the concrete has been poured in the form, and showing the stirrups imbedded therein.
  • Fig. 5 is a detail perspective view of the stirrup assembly shown in collapsed condition.
  • Fig. 6 is a plan view, partly in horizontal section, of the collapsed unit.
  • Fig. '7 is a detail perspective view of one of the stirrups forming the chair spacing elements.
  • Fig. 8 is a similar view of one of the intermediate stirrups.
  • Fig. 9 is a perspective view of a portion of one of the connecting wires.
  • Fig. 10 is an enlarged detail perspective view of one of the hinge connections between the stirrups and connecting wires.
  • stirrup assembly designates my preferred form of stirrup assembly, and which includes a series of spaced stirrups 2, with the endmost and one or more of the intermediate stirrups of modified construction to provide chairs 3, 4 and 5 adapted to spacingly support the longitudinal reinforcing rods 6 and l of a completed beam structure, as shown in Fig. v4.
  • the stirrup elements constituting the chairs each includes spaced vertical rods 8 and 9 of sufiicient length so that the lower ends II] are adapted to seaton the bottom of .the beam form II, and the upper ends to extend into the upper portion of the beam and terminate in laterally extending arm-like ends l2 and I3, as clearly shown in Fig. 3.
  • the rods 8 and 9 are connected by cross bars M which are spaced above the lower ends Ill,
  • the cross bars l4 have projecting ends [5 and I6 adapted to engage the side members I! and I8 of a form, as shown in Fig. 1.
  • the intermediate stirrups are preferably forme of rods bent to form horizontal bar portions 2!, and upwardly extending bar portions 22 and 23 terminating in laterally, outwardly extending ends 24 and 25, corresponding to the laterally extending, arm-like ends l2 and I3 .of the chair elements 3, 4 and 5.
  • the vertical rod portions of the stirrups conform in spacing with the rods 8 and 9, and the rod portions thereof conform to the length of the rods from the cross bars M to the terminals l2 and I3, whereby all the terminals and horizontal bar portions of the stirrups are adapted to align with the lateral terminals l2 and I3 and with the horizontal bars M respectivel
  • the vertical rod portions of the respective stirrups are provided at spaced points along the height thereof with crimps 26 and 21 to provide hinge portions offset from the axis of the rods.
  • stirrup elements seat upon the bottom board II, and the ends Hand [6 engagethe side boards I! and I8 of the form,,as shown in Fig. 2.
  • the stirrup assembly is centered within the form, with the stirrups properly M spaced since they are all retained by the connecting wires.
  • the longitudinal reinforcing rods arethen inserted in the form so. that they are supported on the horizontal bars M of the chair elements.
  • the assembly When a standard stirrup assembly is to be used ina form of narrower than standard Width, the assembly may be partially collapsed so that the ends of the horizontal bars I4 may be positioned therein.
  • stirrups may be accurately assembled in definitely spaced relation, and then shipped and handled in collapsed condition, to the place of use, where the assembly is readily 'including a plurality of stirrup members, and
  • each of said connections including a crimp portionin one of the members interengaged with a loop portion in the member connected therewith to form hinge joints to positively retain. said members in predetermined spaced relation,
  • a reinforcement of the character described including a plurality of stirrups having crimp portions, and spacing wires having loop portions interengagingthe crimp portions to hingedly connect and positively space the sti'rrupswith respect to the wires.
  • a reinforcement of the character described including a plurality of stirrups having crimp portions, and spacing wires having loop portions interengaging the crimp portions to hingedly connect and positivelyspace the stirrups with respect to the wires, selected stirrups comprising rods and cross bars welded to said 'rods at points betweenthe crimp portions and the lower ends of said rods to provide foot portions for spacing the stirrups fromthe bottom of the form.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Reinforcement Elements For Buildings (AREA)

Description

Dec. 17, 1940. F. R. McFARLAND 2,225,226
REINFORCEMENT STIRRUP ASSEMBLY 2 Sheets-Sheet 1 Filed Aug. 26, 1959 /N VENTOR AITTORNE Y Dec. 17, 1940. F. R. McFARLAND REINFORCEMENT STIRRUP ASSEMBLY Filed Aug. 26, 1939 2 Sheets-Sheet 2 ATTORNEY Patented Dec. 17, 1940 UNITED STATES PATENT OFFICE REINFORCEMENT s'rIRRUP ASSEMBLY Frank R. McFarland, Kansas City, Mo., assignor to Sheflield Steel Corporation, Kansas City, Mo., a corporation of Ohio Application August 26, 1939, SerialNo. 292,093
4 Claims. (01. 72 s1) 1 to provide a unitary assembly which may be stocked in standard sizes and adjustable for use in beams of different widths as required by the designing engineer; and to provide an assembly wherein the chair elements space the stirrups above the bottom of the beam form.
In accomplishing these and other objects of the invention, as hereinafter pointed out, I have provided improved details of structure, the preferred form of which is illustrated in the accompanying drawings, wherein:
Fig. 1 is a perspective view of a beam form partly broken away and showing my improved unitary stirrup assembly in position therein.
3 Fig. 2 is a plan view of the stirrup assembly.
part of which is shown in horizontal section.
Fig. 3 is a cross-section through the form showing the chair and spacing elements of the assem bly for positioning the stirrups in the center thereof.
Fig. 4 is a similar section after the concrete has been poured in the form, and showing the stirrups imbedded therein.
Fig. 5 is a detail perspective view of the stirrup assembly shown in collapsed condition.
Fig. 6 is a plan view, partly in horizontal section, of the collapsed unit.
Fig. '7 is a detail perspective view of one of the stirrups forming the chair spacing elements.
Fig. 8 is a similar view of one of the intermediate stirrups.
Fig. 9 is a perspective view of a portion of one of the connecting wires.
Fig. 10 is an enlarged detail perspective view of one of the hinge connections between the stirrups and connecting wires.
Referring more in detail to the drawings:
I designates my preferred form of stirrup assembly, and which includes a series of spaced stirrups 2, with the endmost and one or more of the intermediate stirrups of modified construction to provide chairs 3, 4 and 5 adapted to spacingly support the longitudinal reinforcing rods 6 and l of a completed beam structure, as shown in Fig. v4.
The stirrup elements constituting the chairs each includes spaced vertical rods 8 and 9 of sufiicient length so that the lower ends II] are adapted to seaton the bottom of .the beam form II, and the upper ends to extend into the upper portion of the beam and terminate in laterally extending arm-like ends l2 and I3, as clearly shown in Fig. 3. The rods 8 and 9 are connected by cross bars M which are spaced above the lower ends Ill,
and preferably welded thereto. The cross bars l4 have projecting ends [5 and I6 adapted to engage the side members I! and I8 of a form, as shown in Fig. 1.
The ends ll] of the rods 8 and 9 thus form.
footingnportions for spacing the longitudinal re-. inforcement' rods 6 and I from the bottom ll of the form, and the projecting ends I5 and I6 are adapted to center the stirrups within the form, as shown in Fig. 3.
The intermediate stirrups are preferably forme of rods bent to form horizontal bar portions 2!, and upwardly extending bar portions 22 and 23 terminating in laterally, outwardly extending ends 24 and 25, corresponding to the laterally extending, arm-like ends l2 and I3 .of the chair elements 3, 4 and 5. The vertical rod portions of the stirrups conform in spacing with the rods 8 and 9, and the rod portions thereof conform to the length of the rods from the cross bars M to the terminals l2 and I3, whereby all the terminals and horizontal bar portions of the stirrups are adapted to align with the lateral terminals l2 and I3 and with the horizontal bars M respectivel The vertical rod portions of the respective stirrups are provided at spaced points along the height thereof with crimps 26 and 21 to provide hinge portions offset from the axis of the rods. Connecting the crimp portions of the respective stirrups are pairs of wires 28 and 29, having loops 30 formed therein and substantially encircling the crimped portion of the rods to provide cooperating hinge portions whereby the respective stirrups are retained in hinged assembly. The portions'of the rods on the respective sides of the offset seats formed by the crimps engage the upper and lower faces of the loop portions so that the spacing Wires are retained in fixed spaced relation on the rod portions of the respective stirrups.
It is thus obvious that the unit is readily collapsed so that the stirrupsv are adapted. to
- swing and the cross bar portions lie in substaned in the form so that the foot portions of the,
respective stirrup elements seat upon the bottom board II, and the ends Hand [6 engagethe side boards I! and I8 of the form,,as shown in Fig. 2. When thus applied the stirrup assembly is centered within the form, with the stirrups properly M spaced since they are all retained by the connecting wires.
The longitudinal reinforcing rods arethen inserted in the form so. that they are supported on the horizontal bars M of the chair elements. When the reinforcement is in place and the concrete poured as shown inFigr 4, the. stirrups,
as well as the rods, are retained in their proper spaced relation with the faces of the beam and in their required position, since the spacing elements prevent shifting thereof incidental to pouring ofthe concrete. v
When a standard stirrup assembly is to be used ina form of narrower than standard Width, the assembly may be partially collapsed so that the ends of the horizontal bars I4 may be positioned therein.
With the construction above described, it is obvious that the stirrups may be accurately assembled in definitely spaced relation, and then shipped and handled in collapsed condition, to the place of use, where the assembly is readily 'including a plurality of stirrup members, and
spacingmembers connecting the stirrup members, each of said connections including a crimp portionin one of the members interengaged with a loop portion in the member connected therewith to form hinge joints to positively retain. said members in predetermined spaced relation,
selected stirrup members having form engaging portions to center the reinforcement within a form. g
3.. A reinforcement of the character described, including a plurality of stirrups having crimp portions, and spacing wires having loop portions interengagingthe crimp portions to hingedly connect and positively space the sti'rrupswith respect to the wires.
4. A reinforcement of the character described, including a plurality of stirrups having crimp portions, and spacing wires having loop portions interengaging the crimp portions to hingedly connect and positivelyspace the stirrups with respect to the wires, selected stirrups comprising rods and cross bars welded to said 'rods at points betweenthe crimp portions and the lower ends of said rods to provide foot portions for spacing the stirrups fromthe bottom of the form.
FRANK R. MCFARLAND.
US292093A 1939-08-26 1939-08-26 Reinforcement stirrup assembly Expired - Lifetime US2225226A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US292093A US2225226A (en) 1939-08-26 1939-08-26 Reinforcement stirrup assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US292093A US2225226A (en) 1939-08-26 1939-08-26 Reinforcement stirrup assembly

Publications (1)

Publication Number Publication Date
US2225226A true US2225226A (en) 1940-12-17

Family

ID=23123186

Family Applications (1)

Application Number Title Priority Date Filing Date
US292093A Expired - Lifetime US2225226A (en) 1939-08-26 1939-08-26 Reinforcement stirrup assembly

Country Status (1)

Country Link
US (1) US2225226A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3604180A (en) * 1968-02-09 1971-09-14 Florida Wire & Cable Spacer element for a reinforcing member
US4759460A (en) * 1983-09-20 1988-07-26 Continental Disc Corporation Rupture disc system
US20020129490A1 (en) * 2001-03-19 2002-09-19 Giorgio Del Fabro Device and method to complete reinforcement cages
US6460235B1 (en) 1999-11-16 2002-10-08 M.E.P. Macchine Elettroniche Piegatrici Spa Device to produce reinforcement metal cages

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3604180A (en) * 1968-02-09 1971-09-14 Florida Wire & Cable Spacer element for a reinforcing member
US4759460A (en) * 1983-09-20 1988-07-26 Continental Disc Corporation Rupture disc system
US6460235B1 (en) 1999-11-16 2002-10-08 M.E.P. Macchine Elettroniche Piegatrici Spa Device to produce reinforcement metal cages
US20020129490A1 (en) * 2001-03-19 2002-09-19 Giorgio Del Fabro Device and method to complete reinforcement cages

Similar Documents

Publication Publication Date Title
US3788025A (en) Chair support for reinforcing rods
US1764134A (en) Concrete beam
US2225226A (en) Reinforcement stirrup assembly
US7900880B2 (en) Lifting anchor support
US2003670A (en) Book stack
US1240137A (en) Reinforcement system for concrete beams.
DE102011051748A1 (en) Prefabricated reinforcing cage for formwork utilized for e.g. support beam, has tapered overlap section provided at cage end, and exhibiting outer cross-section that is smaller than inner cross-section of main part of tubular structure
US2154748A (en) Combined bar support and spacer
US2055701A (en) Steel joist for concrete floors
US1461891A (en) Concrete building
US1708352A (en) barton
US2768562A (en) Dowel apparatus for paving joints
US1735592A (en) Mat chair
US2146758A (en) Structural unit
US3405905A (en) Metal forms for concrete
US1696695A (en) Anchor for floor sleepers
US2794235A (en) Inner right angle corner forming unit for a concrete wall form
US2116335A (en) Wrapping for structural shapes
US5687536A (en) Frame structure for the framework of a reinforced concrete floor
US1826042A (en) Structural unit
US2122985A (en) Continuous stirrup for concrete construction work
JP7370577B2 (en) Reinforcement fittings and reinforcement structure for reinforced concrete perforated beams
US1718938A (en) Charles i
US2324719A (en) Bar spacer
US1666157A (en) Armored reenforced-concrete slab