US3525191A - Truss assembly set,especially for bracing concrete forms - Google Patents

Truss assembly set,especially for bracing concrete forms Download PDF

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Publication number
US3525191A
US3525191A US712339A US3525191DA US3525191A US 3525191 A US3525191 A US 3525191A US 712339 A US712339 A US 712339A US 3525191D A US3525191D A US 3525191DA US 3525191 A US3525191 A US 3525191A
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United States
Prior art keywords
trusses
truss
chords
apertures
assembly set
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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
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US712339A
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English (en)
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Emil Mauritz Hunnebeck
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Individual
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Individual
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Priority claimed from DE1967H0059955 external-priority patent/DE1973113U/de
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    • 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
    • E04G11/06—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for walls, e.g. curved end panels for wall shutterings; filler elements for wall shutterings; shutterings for vertical ducts
    • E04G11/08—Forms, which are completely dismantled after setting of the concrete and re-built for next pouring
    • E04G11/12—Forms, which are completely dismantled after setting of the concrete and re-built for next pouring of elements and beams which are mounted during erection of the shuttering to brace or couple the elements
    • 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
    • E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
    • E04G17/14—Bracing or strutting arrangements for formwalls; Devices for aligning forms
    • 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
    • E04G2011/505—Girders, beams, or the like as supporting members for forms with nailable or screwable inserts

Definitions

  • the prevent invention relates to an assembly set of trusses or the like of different heights or widths which are especially adapted for bracing concrete forms and wherein the trusses of one height may be inserted transversely through those of another height and 'be secured to the latter.
  • the known assembly sets of trusses of this kind consisted of lattice trusses of a kind known as such which by means of other trusses which were inserted into them and were secured thereto formed telescopic form supports. They further consisted of reinforcing beams which extended through the lattice trusses and were clamped thereto.
  • the lattice trusses for producing such telescopic form supports were provided with clamping means on their lower chords for holding the trusses which were inserted therein in a fixed position relative to the upper chords of the lattice trusses, the reinforcing beams extending through the lattice trusses of the known assembly sets could be applied only in such cases in which the lattice trusses were provided with clamping means. This requirement limited the utility of such assembly sets considerably.
  • trusses which were to be inserted transversely into the lattice trusses only had a solidifying effect sufiicient to render a form element of a large surface area transportable.
  • These trusses could not be employed for bracing the form element and for taking up the concrete pressure. Consequently, they could not be regarded as trusses in the proper sense of the word, but only as reinforcing elements.
  • each truss of the assembly set is made of a 3,525,191 Patented Aug. 25, 1970 boxlike shape and that all lateral surfaces of each truss are provided with apertures.
  • Those apertures which are provided in two parallel side walls of trusses are then designed for receiving the insertable trusses, while the apertures in the other parallel side walls are intended for the insertion of anchoring means. Consequently, all trusses which may be passed transversely through other trusses should also comply with these requirements.
  • each of the trusses of a larger size then permits the trusses of the next smaller size to be transversely inserted therethrough and to be secured thereto at practically any place thereof and it also permits necessary anchoring means to be passed at any desired place through the trusses. It is then immaterial which chords abut against the form wall or the like.
  • the assembly set according to the invention may be employed very universally.
  • the insertable trusses should preferably be secured in a fixed position relative to the two lateral walls of the other trusses through which they are not passed, and one of the lateral walls of the insertable trusses should be capable of being applied directly upon the corresponding lateral surfaces of the other trusses.
  • the present invention provides suitable clamping means which press the truss which is inserted through apertures of the other truss against one of the parallel side walls of the latter and are braced on the other side wall.
  • each truss so as to have either two or four equal chords which are connected to each other so as to form a rigid unit by means of suitable connecting elements such as sheet-metal strips, rods, bars or the like which are spaced from each other. It is further advisable to make all chords of the same truss of the same cross sectional size and shape since it is then immaterial which of the chords may be applied, for example, against a wall of a concrete form.
  • the ends of the connecting elements are preferably recessed so that at these points the anchoring means, for example, tie rods, do not have to be inserted through apertures but may simply be layed into the recesses, for example, from above. This facilitates the assembly considerably at the building site. Since the lower ends of the connecting elements are preferably likewise recessed, there is no need to remove the lowest tie rods when the form walls are to be removed since the trusses are open and can therefore be withdrawn upwardly from the tie rods. This is very important when constructing normal house walls since the tie rods then only need to be applied at the very upper and lower ends of the vertical trusses.
  • the lateral surfaces of all trusses through which other trusses may be transversely inserted should be provided with apertures for receiving suitable elements for connecting these trusses to equal trusses extending in the same direction so that the ends of several equal trusses will then abut against each other and be firmly secured to each other.
  • FIG. 1 shows a side view of a truss according to the invention
  • FIG. 2 shows a top view of the truss according to FIG. 1;
  • FIG. 3 ShOWs a side view of a truss which may be inserted through either of the larger apertures of the truss according to FIGS. 1 and 2;
  • FIG. 4 shows a top view of the truss according to FIG. 3;
  • FIG. 5 shows a side view of a form wall which is composed of a plurality of form boards and is supported by trusses which are designed and assembled according to the invention
  • FIG. 6 shows a top view of a concrete wall encased in a form which is supported by trusses according to FIG. 5;
  • FIG. 7 shows a side view of the elements according to FIGS. 5 and 6;
  • FIG. 8 shows a horizontal cross section of the corner of a building which is encased in a form which is supported by trusses and connecting elements according to a modification of the invention
  • FIG. 9 shows a cross section which is taken along the line IX-IX of FIG. 8;
  • FIG. 10 shows a cross section of a truss with two equal chords
  • FIG. 11 shows a side view of the truss according to FIG. 10; while FIG. 12 shows a perspective view of one of the chords of the truss according to FIGS. 10 and 11.
  • FIGS. 1 and 2 show one of the supporting trusses according to the invention which is of a substantially boxlike shape and comprises parallel side wall 1 which determine height or width of the truss and are provided with apertures 2 of such a size so as to permit narrower supporting trusses of the similar shape with parallel side walls 3 as shown in FIGS. 3 and 4 to be inserted and then be locked to the wider trusses by suitable clamping means so as to form a framelike structure.
  • the side walls 1 and 3 of each of the two types of trusses are rigidly secured to each other by connecting members 4 or 5, respectively.
  • One or both types of trussses may be addi tionally provided with reinforcing struts, not shown. If desired or necessary, still narrower trusses may be inserted through the apertures 6 of the trusses according to FIGS. 3 and 4 and be secured to the latter.
  • FIGS. 5 to 7 illustrate supporting trusses 7 and 8 which differ slightly in shape from the trusses according to FIGS. 1 to 4 but are to be similarly connected to each other so as to form a supporting frame.
  • the parallel trusses 7 of each frame may be connected and secured to each other by any desired number of trusses 8, only two of these connecting trusses 8 are shown.
  • clamping means 9 are provided which press the adjacent lateral surfaces of the intersecting trusses against each other by traction by means of wedges 9'.
  • the connecting members 11 which connect the chords 10 or the side walls of the trusses 7 to each other are provided with slots 12.
  • the apertures in the side walls 14 of the trusses 7 through which the trusses 8 are inserted are indicated at 13.
  • the shape of the trusses 8 differs slightly from that of the trusses 7 insofar as the trusses 8 are in the form of lattice trusses.
  • These trusses 8 may also be designed so that smaller trusses may be inserted through the apertures 15 in their side walls 16 and be locked thereto. This is, however, not shown in FIGS. 5 to 7 as it would not be necessary in this particular framework.
  • the form walls which are braced by the trusses 7 and 8 are each composed of a plurality of form boards 17.
  • the two sets of trusses 7 and 8 at the opposite sides of the concrete form are clamped to each other by tie rods 18 which are inserted through openings in the two other parallel side walls which in the particular embodiment of the invention as shown in FIG. 5 are provided in the upper and lower ends of the trusses 7.
  • the ends of trusses 7 are provided with openings 19.
  • FIGS. 5 and 7 also illustrate that all lateral surfaces of the two kinds of trusses are provided with apertures in accordance with the invention and that all chords of the trusses of each kind have the same cross-sectional shape.
  • FIGS. 8 and 9 illustrate trusses according to a modification of the invention which are employed to brace the concrete form of a corner of a building.
  • trusses 20 In the vertical direction, there are trusses 20 with four chords 21 which are combined with each other by connecting members 22 and 23 so as to form a rigid unit.
  • tie rods or the like may be inserted, while through the apertures 25 trusses 26 may be inserted and secured by clamping means 9 such as shown in FIG. 6.
  • the connecting members 23 of trusses 20 and the connecting members 28 of trusses 26 are made of a shape so as to increase the rigidity of the framework,
  • the connecting members 28 of trusses 26 are also spaced from each other so that also in this case all lateral surfaces of both kinds of trusses are provided with apertures through which other parts may be inserted.
  • the corner angle 31 as shown in FIGS. 8 and 9 is because of its simplicity especially suitable for supporting and connecting the trusses at an angle to each other.
  • the trusses of the known types had equal chords, they were arranged symmetrically above each other only relative to the Y axis of the truss which extends in the vertical direction. Therefore, the distance between the connecting webs of the two chords was exactly as large as the distance between the ends of the flanges of the two chords. In other words, the recesses which were formed by the two flanges and the connecting web of each pair of chords were open toward the same side.
  • chords which are of an equal length and cross-sectional shape are arranged symmetrically to both static axes, that is, to the Y-axis as well as to the X-axis of the lattice truss so that the distance between the webs of the U-profiles of both chords will be smaller than the distance between the ends of the flanges of the two chords.
  • the webs of the chords are provided with longitudinal apertures or slots.
  • the trusses which are made of such a shape are very rigid and may be easily connected to equal or or other kinds of trusses by hammer-head bolts.
  • the slots which are provided then serve for the insertion of anchoring means such as tie rods at almost any desired place of two opposite form walls.
  • the truss 32 consists of two equal chords 33 and 34 of a substantially U-shaped cross section.
  • the central web of each of these two chords 33 and 34 is provided with longitudinal apertures or slots 36.
  • the apertures or slots 36 which are adjacent to the end surfaces 37 are open toward these ends.
  • the flanges 38 and 39 which are integral with the web 35 of each chord 33 and 34 are bent over twice toward the outside so that transverse flanges 40 and 41 and outer U-shaped channels 42 and 43 are formed which reinforce each chord.
  • the outer surfaces of flanges 38 and 39 of both chords 33 and 34 are secured to each other by zigzag or serpentine-shaped rods 44 and 45 which are welded thereon in equal positions so that it is immaterial which of the two chords 33 and 34 is located immediately opposite to a form wall.
  • chords are disposed symmetrically to the Y-axis, as indicated by the dot-and-dash line 46, as well as to the X-axis, as indicated by the dotted line 47.
  • the invention may also be applied to trusses of a different construction.
  • the trusses as seen in a side view form lattice trusses, diamond-shaped trusses, or framelike trusses.
  • the individual trusses belonging to one set according to the invention may be employed either singly or combined for bracing large-surface concrete forms. Each truss may, however, also be employed individually for properly supporting a vertical or horizontal form wall.
  • a gridlike structure for providing lateral support for concrete forms or the like and capable of being readily disassembled Without damaging any of the component parts, said structure comprising:
  • At least two first girder means disposed in spaced parallel relationship
  • At least one second girder means disposed in generally right angular relationship to said first girder means, extending therebetween and being connected thereto by releasable securing means,
  • each of said girder means including a pair of webs disposed in spaced parallel relationship, said webs having spaced openings-therein, the openings in one of said webs being aligned with the openings in the other web, spacer means extending between said webs inwardly of both of the longitudinal edges thereof, apertures spaced along said spacer means, the apertures adjacent one longitudinal edge being aligned with the apertures along the other longitudinal edge, the longitudinal edges of each of said Webs comprising chord members, said chord members and said spacer portions thereby defining two oppositely-facing grooves receiving and supporting a beam member therein, along opposite sides of said first girder means,
  • said second girder means being constructed similarly to said first girder means and having Webs of smaller width, said second girder means passing through said aligned apertures in said Webs of said first girder means.
  • said releasable securing means includes clamping means wedged between an outer surface of said second girder means and an inner surface of an aperture in said webs of said first girder means at a point where said second girder means is inserted within said aligned apertures in said first girder means.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • Rod-Shaped Construction Members (AREA)
US712339A 1967-03-09 1968-03-08 Truss assembly set,especially for bracing concrete forms Expired - Lifetime US3525191A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEH0062081 1967-03-09
DE1967H0059955 DE1973113U (de) 1967-08-21 1967-08-21 Fachwerktraeger aus zwei gleichen gurten und diese verbindenden diagonalen.

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US3525191A true US3525191A (en) 1970-08-25

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US (1) US3525191A (en(2012))
JP (1) JPS5010462B1 (en(2012))
AT (1) AT283700B (en(2012))
BE (1) BE711876A (en(2012))
CH (1) CH467915A (en(2012))
DE (1) DE1684271B1 (en(2012))
DK (1) DK127796B (en(2012))
ES (1) ES161897Y (en(2012))
FR (1) FR1556695A (en(2012))
GB (1) GB1221873A (en(2012))
NL (1) NL6803308A (en(2012))

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50113025A (en(2012)) * 1974-02-15 1975-09-04
US3914911A (en) * 1973-10-19 1975-10-28 Harold R Paasch Protective cover for sewer grates
JPS5169345U (en(2012)) * 1974-11-22 1976-06-01
JPS552152A (en) * 1978-08-25 1980-01-09 Sumikin Kozai Kogyo Kk Strut for molding flask
US4957272A (en) * 1989-06-23 1990-09-18 Lee Yuan Ho Modular concrete form
EP1092821A1 (de) * 1999-10-13 2001-04-18 Josef Röllin Systemträger, insbesondere für Schalungsvorrichtungen im Betonbau
EP1566504A1 (en) * 2004-02-20 2005-08-24 Julio Angel Barba Castro Light reinforced frames for forming, shoring, scaffolding or the like
FR2869630A1 (fr) * 2004-04-28 2005-11-04 Lung Ching Shih Corps de poutre et poutre de support de panneau moule ayant un tel corps de poutre
ES2244253A1 (es) * 2002-06-19 2005-12-01 Julio Angel Barba Castro Sistema de estructuras armadas ligeras para encofrar, apuntalar, andamiar o similar.
CN112227397A (zh) * 2020-10-10 2021-01-15 杨胜杰 一种沉箱组合模板

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106481077B (zh) * 2016-10-14 2019-01-25 曹立英 一种模板新型加固体系及其施工工艺

Citations (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE553010A (en(2012)) *
US481915A (en) * 1892-08-30 Jail-grating
US537897A (en) * 1895-04-23 Grating for jails
US849908A (en) * 1906-04-12 1907-04-09 Albert K Mansfield Steel supporting structure for electric-transmission cables.
US1871041A (en) * 1931-02-11 1932-08-09 John F Cavanagh Knockdown scaffolding
US1911018A (en) * 1931-11-11 1933-05-23 William L Goeltz Structural unit
US1920831A (en) * 1928-12-10 1933-08-01 Gabriel Steel Company Transverse bracing for metallic floor joists
US1963395A (en) * 1930-12-15 1934-06-19 Gabriel Steel Company Metallic building construction
US1986172A (en) * 1933-07-28 1935-01-01 Frederick R Wilson Steel and concrete construction
US2008907A (en) * 1934-05-04 1935-07-23 Globe Machine & Stamping Co Grid type metal grille
US2284898A (en) * 1939-11-29 1942-06-02 Rudolph B Hartman Structural system
US2664178A (en) * 1949-05-13 1953-12-29 Rocky Mountain Drilling Compan Drilling rig base
CA565502A (en) * 1958-11-04 Lionweld Limited Method of constructing flooring frameworks
US2906380A (en) * 1955-05-05 1959-09-29 Supaslot Angle Company G B Ltd Constructional element
US2978076A (en) * 1958-01-29 1961-04-04 Nat Gypsum Co Long length lath partition system
US3327987A (en) * 1963-01-08 1967-06-27 Holzmann Philipp Ag Supporting wall for a plurality of shells in the pouring of concrete
US3336718A (en) * 1964-06-15 1967-08-22 Dominion Bridge Co Ltd Space decks
US3394525A (en) * 1965-09-02 1968-07-30 James E. Mckee Mock-up structural units

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1919738U (de) * 1965-04-01 1965-07-15 Huennebeck A G Grossflaechen-schalungselement.

Patent Citations (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US481915A (en) * 1892-08-30 Jail-grating
US537897A (en) * 1895-04-23 Grating for jails
BE553010A (en(2012)) *
CA565502A (en) * 1958-11-04 Lionweld Limited Method of constructing flooring frameworks
US849908A (en) * 1906-04-12 1907-04-09 Albert K Mansfield Steel supporting structure for electric-transmission cables.
US1920831A (en) * 1928-12-10 1933-08-01 Gabriel Steel Company Transverse bracing for metallic floor joists
US1963395A (en) * 1930-12-15 1934-06-19 Gabriel Steel Company Metallic building construction
US1871041A (en) * 1931-02-11 1932-08-09 John F Cavanagh Knockdown scaffolding
US1911018A (en) * 1931-11-11 1933-05-23 William L Goeltz Structural unit
US1986172A (en) * 1933-07-28 1935-01-01 Frederick R Wilson Steel and concrete construction
US2008907A (en) * 1934-05-04 1935-07-23 Globe Machine & Stamping Co Grid type metal grille
US2284898A (en) * 1939-11-29 1942-06-02 Rudolph B Hartman Structural system
US2664178A (en) * 1949-05-13 1953-12-29 Rocky Mountain Drilling Compan Drilling rig base
US2906380A (en) * 1955-05-05 1959-09-29 Supaslot Angle Company G B Ltd Constructional element
US2978076A (en) * 1958-01-29 1961-04-04 Nat Gypsum Co Long length lath partition system
US3327987A (en) * 1963-01-08 1967-06-27 Holzmann Philipp Ag Supporting wall for a plurality of shells in the pouring of concrete
US3336718A (en) * 1964-06-15 1967-08-22 Dominion Bridge Co Ltd Space decks
US3394525A (en) * 1965-09-02 1968-07-30 James E. Mckee Mock-up structural units

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3914911A (en) * 1973-10-19 1975-10-28 Harold R Paasch Protective cover for sewer grates
JPS50113025A (en(2012)) * 1974-02-15 1975-09-04
JPS5169345U (en(2012)) * 1974-11-22 1976-06-01
JPS552152A (en) * 1978-08-25 1980-01-09 Sumikin Kozai Kogyo Kk Strut for molding flask
US4957272A (en) * 1989-06-23 1990-09-18 Lee Yuan Ho Modular concrete form
EP1092821A1 (de) * 1999-10-13 2001-04-18 Josef Röllin Systemträger, insbesondere für Schalungsvorrichtungen im Betonbau
ES2244253A1 (es) * 2002-06-19 2005-12-01 Julio Angel Barba Castro Sistema de estructuras armadas ligeras para encofrar, apuntalar, andamiar o similar.
ES2244253B1 (es) * 2002-06-19 2006-11-01 Julio Angel Barba Castro Sistema de estructuras armadas ligeras para encofrar, apuntalar, andamiar o similar.
EP1566504A1 (en) * 2004-02-20 2005-08-24 Julio Angel Barba Castro Light reinforced frames for forming, shoring, scaffolding or the like
FR2869630A1 (fr) * 2004-04-28 2005-11-04 Lung Ching Shih Corps de poutre et poutre de support de panneau moule ayant un tel corps de poutre
CN112227397A (zh) * 2020-10-10 2021-01-15 杨胜杰 一种沉箱组合模板

Also Published As

Publication number Publication date
DE1684271B1 (de) 1971-12-23
BE711876A (en(2012)) 1968-07-15
AT283700B (de) 1970-08-10
FR1556695A (en(2012)) 1969-02-07
ES161897U (es) 1970-12-16
CH467915A (de) 1969-01-31
NL6803308A (en(2012)) 1968-09-10
ES161897Y (es) 1971-06-16
JPS5010462B1 (en(2012)) 1975-04-22
GB1221873A (en) 1971-02-10
DK127796B (da) 1974-01-07

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