US3740825A - Method of installing form ties - Google Patents

Method of installing form ties Download PDF

Info

Publication number
US3740825A
US3740825A US00125755A US3740825DA US3740825A US 3740825 A US3740825 A US 3740825A US 00125755 A US00125755 A US 00125755A US 3740825D A US3740825D A US 3740825DA US 3740825 A US3740825 A US 3740825A
Authority
US
United States
Prior art keywords
tubular member
tie
holes
hole
panels
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
US00125755A
Inventor
F Buyken
R Foster
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
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US3740825A publication Critical patent/US3740825A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G17/00Connecting or other auxiliary members for forms, falsework structures, or shutterings
    • E04G17/06Tying means; Spacers ; Devices for extracting or inserting wall ties
    • E04G17/0642Devices for extracting or inserting wall ties or parts thereof
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49826Assembling or joining
    • Y10T29/49838Assembling or joining by stringing
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49826Assembling or joining
    • Y10T29/49895Associating parts by use of aligning means [e.g., use of a drift pin or a "fixture"]
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/53Means to assemble or disassemble
    • Y10T29/53696Means to string

Definitions

  • ABSTRACT A method of installing form-tie rods in a pair of substantially aligned holes in an opposed pair of spacedapart concrete forms is disclosed to comprise the steps of inserting and visually aligning a hollow or tubular member in said holes, then the step of withdrawing the tubular member from the holes in one direction or the other while the tubular member leads or guides a formtie through the holes.
  • an installer introduces "a straight tubular member into the outer end'ofthe first of a pair of substantially aligned 'holes'in a pair of forms.
  • the member is open-endedandmay'be-sighted through.
  • the installer sights at the opposite hole to center or align the tubular member.
  • FIGS. 1 through 4 illustrate schematically steps of this method
  • FIG. 5 is a perspective view depicting the tie leading action of a tubular member in feeding or guiding tie rods into form panels.
  • Gang forms are constructedin sizes such as 8' X 16', 12' X 20' and even larger.
  • a template structure is built at ground level. Waler timbers are arranged parallel thereon on about 16 inch centers. Plywood panels are placed over the walers and securely nailed thereto. Then the panel assemblies are drilled along the center lines of the walers at, say, 24 inch center-to-center spaces along the walers. Ina form panel 16 X 16' there will be about 80 holes each of which is to have a form-tie passed through it.
  • the infeed of the tie rods is perforce from the outer face of one or the other of the paired and'spaced-apart panels.
  • the form panels are equipped with locking devices, one at the outer end "of each hole, to engage and secure an end of a form-tierod.
  • the tie rod shown in the drawings is generally described as a pass-through tie in that it is capable of being inserted through one panel hole into the intervening space andthen through the other opposite panel hole whereupon its ends are engaged by such locks or clamps. It is to facilitate'this rod insertion that thepresent method has been invented.
  • a firstba'nk panel or wall section is positioned and braced where it is to be used. Then the second or opposite gang panel is erected and braced in facing, spacedapart relation to the first panel. At this stage the holes of the'twopanels will usually be aligned. Often, due to the vagaries of construction, some misalignment will occur. The constructors next must feed the tie rods through'the paired holes and secure or look their ends externally of the panels. In doing so reinforcingrods placed between the forms may obstruct the passage of the tie rods from hole to hole.
  • an operator on one side of the opposed forms introduces a tubular member 50 through a first hole 34 until its inner end is in the space between the opposed form panels. Then, as suggested in FIG. 1, he will sight by eye through the open-ended member 50 and by a line of sight center the tube on the axis of the opposite and remote hole 34. He continues to advance member :50 inward and into the opposite hole. Thereupon his partner may feed or insert a form-tie 10 into the end of member 50 andpress tube 50 backward by applying infeeding pressure on the tie rod. This causes tube 50 to be withdrawn. As it withdraws tube 50 leads the tie rod first through one and then the other hole 34.
  • the first workman when the tube 50 is in place, may insert a tie rod 10 in the following end of tube 50 and press it and the tie rod on through the'panels'. The other workman then merely reverses the procedure for the next tie.
  • a 'lock 54 (schematically shown) is operated to secure the rod in place.
  • tubular member 50 greatly simplifies the feeding of the tie rods through the paired holes.
  • the tubular member 50 may be used to displace it, something not usually possible with a mere tie rod. Without it, one operator introduces the rod through the first hole and, working practically blind,-
  • the tube 50 substantially matches the cross-section of holes 34. Hole 34 is long enough to keep tube 50 in line with the opposite hole. By being tubular and open-ended the operator can sigJt through the tube and quickly correct its course and. accurately direct it into the opposite hole.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Pipe Accessories (AREA)
  • Preventing Unauthorised Actuation Of Valves (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)

Abstract

A method of installing form-tie rods in a pair of substantially aligned holes in an opposed pair of spaced-apart concrete forms is disclosed to comprise the steps of inserting and visually aligning a hollow or tubular member in said holes, then the step of withdrawing the tubular member from the holes in one direction or the other while the tubular member leads or guides a form-tie through the holes.

Description

United States Patent [191 Buyken et al.
[ June 26, 1973 METHOD OF INSTALLING FORM-TIES [76] Inventors: Frank E. Buyken, 8620 Island Drive, Seattle, Wash. 981 18; Robert C. Foster, 403 Laurel Street, Elk Grove Village, Ill. 60007 [22] Filed: Mar. 18, 1971 [21] Appl. No.: 125,755
[52] US. Cl 291433, 29/241, 29/464, 249/216 [51] Int. Cl B23 19/04 [58] Field of Search 29/433, 241, 464, 29/452, 407; 249/216 [56] References Cited UNITED STATES PATENTS 2,705,375 4/1955 Foreman et al 29/464 UX FOREIGN PATENTS OR APPLICATIONS 530,224 12/1940 Great Britain 29/433 Primary Examiner-Charlie T. Moon Attorney-Ford E. Smith [5 7] ABSTRACT A method of installing form-tie rods in a pair of substantially aligned holes in an opposed pair of spacedapart concrete forms is disclosed to comprise the steps of inserting and visually aligning a hollow or tubular member in said holes, then the step of withdrawing the tubular member from the holes in one direction or the other while the tubular member leads or guides a formtie through the holes.
3 Claims, 5 Drawing Figures 1 METHOD OF INSTALLING FORMJ-IES BACKGROUND OF THE INVENTION The installation of form-ties in substantiallyaligned holes in 'spaced-apart concrete form =panelspresents difficulties'to the workmen. Usually the tie,- generally called a pass-through tie, is inserted through one hole from the outside, then thesecond holeis locatedand the .tie aligned therewith, and thenit ispassd into and through the ."second hole. The pass-throughtiesblock vision through the first hole and-make difficult-location or sighting of the secondholexThe slender ties also-are not easily guided in the axis of the two holes. The operation requires much fishing and, hence; is sldw'an'd uneconomical. Such 1 installations become more difficult as the large panel sizes are encountered and-"more of the ties are to .be installed-remote from the panel edges beyond the reach of the workmen. The problems are further aggravated as constructiontechniques employing large form'panels being 'reset--'at-substantial heights so. as to require the form-ties to be I installed while the panels are suspended, =as from-a crane, and the installers, working at the outsid'es of the panels, are remote from each other; It is the primary object of this invention to provide a method of installing form=tiesin such manner that many of such difficulties are overcome.
SUMMARY OF THE INVENTION According to this invention an installer introduces "a straight tubular member into the outer end'ofthe first of a pair of substantially aligned 'holes'in a pair of forms. The member is open-endedandmay'be-sighted through. The installer sights at the opposite hole to center or align the tubular member. When the tube "is aligned he'inserts it into the'oppo'site hole. Thereupon another installermay'introduce a formtie from his'side of the second panel causing it'to be seated at the=end of the tube proximate to himfiHe then appliespressure on the form-tie causing the withdrawal of the tubular member and the leading of the form-tie across the space between the panels and accurate entry of itsleading end into the first hole. The tie is thereupon secured at its ends and the installers move onto the next site. Alternatively, the first workman introduces the tubular member as described. He then seats the tie rod in the rear end of the tube and presses tube and rod forward until the tie is positioned. In this case the second workman receives the tubular member and for'the next tie rod merely reverses the order.
DESCRIPTION OF THE DRAWINGS FIGS. 1 through 4 illustrate schematically steps of this method; and
FIG. 5 is a perspective view depicting the tie leading action of a tubular member in feeding or guiding tie rods into form panels.
DESCRIPTION OF THE INVENTION locations over the surfaces of the form panels. The enlarged portion substantially fills a hole 34.
In the construction industry the use of the techniques of gang forming'has become popularand widespread on many types of concrete work where repeated use of preconstructed forms can be made. Gang forms are constructedin sizes such as 8' X 16', 12' X 20' and even larger. A template structure is built at ground level. Waler timbers are arranged parallel thereon on about 16 inch centers. Plywood panels are placed over the walers and securely nailed thereto. Then the panel assemblies are drilled along the center lines of the walers at, say, 24 inch center-to-center spaces along the walers. Ina form panel 16 X 16' there will be about 80 holes each of which is to have a form-tie passed through it. Even though some of the holes will be within arms-reach of the panel edges, a great many will be out of reach. 'As a practical matter the infeed of the tie rods is perforce from the outer face of one or the other of the paired and'spaced-apart panels. Usually the form panels are equipped with locking devices, one at the outer end "of each hole, to engage and secure an end of a form-tierod. The tie rod shown in the drawings is generally described as a pass-through tie in that it is capable of being inserted through one panel hole into the intervening space andthen through the other opposite panel hole whereupon its ends are engaged by such locks or clamps. It is to facilitate'this rod insertion that thepresent method has been invented.
A firstba'nk panel or wall section is positioned and braced where it is to be used. Then the second or opposite gang panel is erected and braced in facing, spacedapart relation to the first panel. At this stage the holes of the'twopanels will usually be aligned. Often, due to the vagaries of construction, some misalignment will occur. The constructors next must feed the tie rods through'the paired holes and secure or look their ends externally of the panels. In doing so reinforcingrods placed between the forms may obstruct the passage of the tie rods from hole to hole.
Employing the instant method of installing the formtie rods, an operator on one side of the opposed forms introduces a tubular member 50 through a first hole 34 until its inner end is in the space between the opposed form panels. Then, as suggested in FIG. 1, he will sight by eye through the open-ended member 50 and by a line of sight center the tube on the axis of the opposite and remote hole 34. He continues to advance member :50 inward and into the opposite hole. Thereupon his partner may feed or insert a form-tie 10 into the end of member 50 andpress tube 50 backward by applying infeeding pressure on the tie rod. This causes tube 50 to be withdrawn. As it withdraws tube 50 leads the tie rod first through one and then the other hole 34. Alternatively the first workman, when the tube 50 is in place, may insert a tie rod 10 in the following end of tube 50 and press it and the tie rod on through the'panels'. The other workman then merely reverses the procedure for the next tie. When the heads 24 of the tie rod are located slightly protruding from holes 34, a 'lock 54 (schematically shown) is operated to secure the rod in place.
It will be recognized that the use of tubular member 50 greatly simplifies the feeding of the tie rods through the paired holes. When a reinforcing bar or rod' is encountered, the tubular member 50 may be used to displace it, something not usually possible with a mere tie rod. Without it, one operator introduces the rod through the first hole and, working practically blind,-
has to feel for the second hole. He works blind because the cones l8 and washers 20 substantially fill and block sight through the hole 34. Because the shape of the cones and washers is non-cylindrical it is very difficult for the operator to keep the rod in the axis of the paired holes. By comparison, the tube 50 substantially matches the cross-section of holes 34. Hole 34 is long enough to keep tube 50 in line with the opposite hole. By being tubular and open-ended the operator can sigJt through the tube and quickly correct its course and. accurately direct it into the opposite hole.
The foregoing sets forth the preferred method of this invention. Variations within the scope of a reasonable application of the doctrine of equivalents are intended to be covered hereby.
What ll. claimed is: 1. The method of installing a form-tie in substantially holes from its outer end and passing the same across the spacebetween said forms;
sighting through said tubular member toward the inner end of the second of said holes and aligning the tubular member therewith;
inserting said tubular member into the second hole;
introducing a form-tie into an end of the tubular member; and
applying pressure on said form-tie to cause movement of said tubular member and the following of said form-tie across said space and into and through said holes.
2. The method of claim 1 in which the form-tie is inserted into the tubular member from a direction opposite the direction of insertion of the tubular member and the latter is withdrawn.
3. The method of claim 1 in which the form-tie is inserted into the tubular member in the same direction as aligned holes in faci g, s cedpa t f panels the tubular member was inserted and the latter is prising the steps of:
introducing a straight, open ended, internally unobstructed, tubular member through a first of said passed on through said holes leading the form-tie into place.
* i I i

Claims (3)

1. The method of installing a form-tie in substantially aligned holes in facing, spaced-apart form panels comprising the steps of: introducing a straight, open ended, internally unobstructed, tubular member through a first of said holes from its outer end and passing the same across the space between said forms; sighting through said tubular member toward the inner end of the second of said holes and aligning the tubular member therewith; inserting said tubular member into the second hole; introducing a form-tie into an end of the tubular member; and applying pressure on said form-tie to cause movement of said tubular member and the following of said form-tie across said space and into and through said holes.
2. The method of claim 1 in which the form-tie is inserted into the tubular member from a direction opposite the direction of insertion of the tubular member and the latter is withdrawn.
3. The method of claim 1 in which the form-tie is inserted into the tubular member in the same direction as the tubular member was inserted and the latter is passed on through said holes leading the form-tie into place.
US00125755A 1971-03-18 1971-03-18 Method of installing form ties Expired - Lifetime US3740825A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US12575571A 1971-03-18 1971-03-18

Publications (1)

Publication Number Publication Date
US3740825A true US3740825A (en) 1973-06-26

Family

ID=22421259

Family Applications (1)

Application Number Title Priority Date Filing Date
US00125755A Expired - Lifetime US3740825A (en) 1971-03-18 1971-03-18 Method of installing form ties

Country Status (2)

Country Link
US (1) US3740825A (en)
JP (1) JPS541074Y2 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4051591A (en) * 1976-12-20 1977-10-04 Thompson Thomas L Method of assembling flotation units
US4234111A (en) * 1977-07-30 1980-11-18 Gebhard Dischinger Device for threading strings or the like
US4450609A (en) * 1981-09-21 1984-05-29 Hamilton Steven P Method of installing a camshaft
US4800061A (en) * 1987-05-06 1989-01-24 Westinghouse Electric Corp. Apparatus for loading fuel rods into grids of nuclear fuel assemblies
US6543116B1 (en) * 2001-09-25 2003-04-08 General Electric Company Method of using a hose connector template on a railcar
US6805153B2 (en) 2001-09-25 2004-10-19 General Electric Company Hose connector template apparatus

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5838225Y2 (en) * 1977-08-23 1983-08-29 日東工器株式会社 Rubber stopper lid

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4051591A (en) * 1976-12-20 1977-10-04 Thompson Thomas L Method of assembling flotation units
US4234111A (en) * 1977-07-30 1980-11-18 Gebhard Dischinger Device for threading strings or the like
US4450609A (en) * 1981-09-21 1984-05-29 Hamilton Steven P Method of installing a camshaft
US4800061A (en) * 1987-05-06 1989-01-24 Westinghouse Electric Corp. Apparatus for loading fuel rods into grids of nuclear fuel assemblies
US6543116B1 (en) * 2001-09-25 2003-04-08 General Electric Company Method of using a hose connector template on a railcar
US6805153B2 (en) 2001-09-25 2004-10-19 General Electric Company Hose connector template apparatus

Also Published As

Publication number Publication date
JPS4726066U (en) 1972-11-24
JPS541074Y2 (en) 1979-01-19

Similar Documents

Publication Publication Date Title
CA2091808C (en) Framework structure for wooden building and framework member
US3740825A (en) Method of installing form ties
US1808912A (en) Art of and means for molding concrete structures
US3007221A (en) Nail free wall form assembly device
US3362674A (en) Adjustable concrete column form and panel therefor
US1680923A (en) Concrete-form construction or the like
DE2061807A1 (en) Brackets for concrete formwork
US5662150A (en) Method of drilling true elongated holes in wood members
US3442482A (en) Form clamp
GB1585700A (en) Concrete form system
DE2355799A1 (en) Shouldered plug for holding tubes on shuttering - is nailed on planks by using tube as nailing tool
EP0046986B1 (en) Bolt connection
US3142883A (en) Tie rod and anchor bolt combination with external anchor point
CN113653321A (en) House construction formwork supporting and positioning system and construction positioning method
DE2829941A1 (en) Connectors for steel-reinforced concrete building parts - comprises ribbed-steel components mounted on U=profile hard PVC carrier and linked by couplings
CN111002432A (en) Prefabricated constructional column template and using method thereof
CN212428068U (en) Vertical narrow and small space wall form
CN214423989U (en) Building plank sheathing coupling mechanism
CN214423992U (en) Concrete wall wood formwork
US3016596A (en) Snap tie for concrete forms
US2753611A (en) Half concrete form chase mounting
CN217602209U (en) Fixing device for embedded box of indoor distribution box of residence
US2981998A (en) She-bolt form spacer
US2104877A (en) Prefabricated building
CN115162715A (en) Quick reinforcing method for T-shaped or cross-shaped special-shaped constructional column