US3890756A - Concrete reinforcement - Google Patents

Concrete reinforcement Download PDF

Info

Publication number
US3890756A
US3890756A US379411A US37941173A US3890756A US 3890756 A US3890756 A US 3890756A US 379411 A US379411 A US 379411A US 37941173 A US37941173 A US 37941173A US 3890756 A US3890756 A US 3890756A
Authority
US
United States
Prior art keywords
rods
rod
mats
structural steel
mat
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
US379411A
Other languages
English (en)
Inventor
Edmund Wagner
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 US3890756A publication Critical patent/US3890756A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
    • E04C5/06—Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional extent, e.g. lattice girders
    • E04C5/0636—Three-dimensional reinforcing mats composed of reinforcing elements laying in two or more parallel planes and connected by separate reinforcing parts
    • E04C5/064—Three-dimensional reinforcing mats composed of reinforcing elements laying in two or more parallel planes and connected by separate reinforcing parts the reinforcing elements in each plane being formed by, or forming a, mat of longitunal and transverse bars

Definitions

  • a Concrete reinforcement Comprises a Structural Steel mat, a lattice girder with a single upper boom rod, a g g'g g i gjgg single lower boom rod and diagonal braces with bent 58] g 52/65O 652 ends supporting the longitudinal rods of the steel mat, 4 645 and the lower boom rod carried by the transverse rods of the steel mat.
  • a brace extends transversely to the plane defined by the girder booms to one of the longil56] ;;::S :2 tudinal steel mat rods and props up one of the boom I rods of the girder. 2,151,861 3/1939 McLellan 52/650 3,744,207 7 1973 Oroschakofi I 3 Clams, 4 Drawmg Figures 1 CONCRETE REINFORCEMENT The present invention relates to improvements in a reinforcement for a completely or partially prefabricated reinforced-concrete slab.
  • All parts of the reinforcement may-be stacked and transported with little space requirement, and the reinforcement is strong enough to resist the pressures in the concrete forms during manufacture of-the reinforced slab..
  • a lattice girder comprising only a single upper boom rod and a single lower boom rod.
  • a brace extends transversely to the plane defined by the booms to one of the longitudinal rods of the structural steel mat and props up one of the boom rods.
  • two such structural steel mats are provided, the lattice girder extending therebetween, with the upper boom rod being in contact with the trans verse rods of the steel mat spaced from the mat carrying the lower boom rod.
  • single boom rod includes an embodiment wherein two or more such rods are bundled or welded together to form the boom.
  • the propping brace has the form of a support clamp whose one end engages the upper boom rod and a longitudinal rod of one of the structural steel mats associated with the upper boom rod, and whose other end engages a longitudinal rod of the ohter structural steel mat.
  • the clamp end engaging the upper boom rod is welded thereto to constitute a part of the lattice girder braces.
  • This in fact, may be viewed as a lattice girder with diagonal braces wherein only one of the legs of the braces are attached to a lower boom, the braces themselves consisting of the diagonal brace part and the support clamp part.
  • FIG. 1 is a side elevational view of the lattice girder of a reinforcement according to one embodiment of the
  • the reinforcement is shown to comprise a planar or two-dimensional lat tice girder consisting of an upper boom rod 1, a lower boom rod 2 and a plurality of braces 3 diagonally extending between the upper and lower boom rods.
  • the braces are spot welded or otherwise suitably affixed to the boom rods so as to form a lattice girder.
  • the diameter of the upper b oom may desirably somewhat exceed that of the lower boom, or they may be of the same dimensions, depending on the structural requirements.
  • the upper ends 5 of diagonal braces 3 are bent to enclose an obtuse angle with I the brace while the lower ends 6 are hook-shaped.
  • the reinforcement shown in FIG. 2 comprises two structural steel mats 8a and 8b each comprising a plurality ofglongitudinally extending steel rods 7 and a plurality of transversely extending steel rods 9 substantially perpendicular to the longitudinal rods.
  • the hook-shaped ends 6 of braces 3 partially encircle and thereby support the longitudinal rods 7 of the lower mat 8b while the upper ends 5 of the braces engage the longitudinal rods 7 of upper mat 8a.
  • the lower boom rod 2 is carried by the'transverse rods 9 of the lower mat 8b so that the girder is propped up against movement in the direction of arrow 10.
  • Braces 11 extend transversely of the plane defined by the booms to prop up the girder in the opposite direction, thus holding it firmly in erect position.
  • the brace 11 has an upper hookshaped end 12 partially encirdling and gripping the upper boom rod 1 and a longitudinal rod 7 of upper mat 8a associated with the upper boom rod.
  • the brace 11 extends obliquely between the two mats, its lower hook-shaped end 13 partially encircling and thereby supporting a longitudinal rod 7a of the lower mat spaced from the girder.
  • FIG. 3 differs from that of FIG. 2 only in that the longitudinal rods 7 of the structural steel mats 8a and 8b are outwardly mounted so that the boom rods of the lattice girder and the longitudinal rods of the mats are on opposite sides of the transverse rods 9 of the mats.
  • the girder in a single step, may be mounted on a structural mat simply by holding the girder obliquely so that the hookshaped ends 7 of braces 3 point downwardly while gliding the girder along the transverse rods 9 of the mat until it engages a longitudinalrod 7,
  • braces 11 which have the form of a clamp, the hook-shaped ends of the clamp being engaged respectively with the upper boom rod 1 and with a longitudinal rod of the lower mat which is spaced from the girder.
  • the braces 11 assume the function of tension rods.
  • a twin girder is mounted in the same fashion (see FIG. 2) on the lower mat, each pair of girders being associated in mirrorimage fashion.
  • the upper structural steel mat 8a is mounted on the girders. Again in a single step, the longitudinal rods 7 of the upper mat are engaged with the bent ends of the braces 3 of the girders, whereupon the braces 11 are clamped into engagement.
  • the reinforcement of the present invention may be used for reinforced concrete walls or slabs of large areas, its use for reinforcing a large concrete slab being illustrated in FIG. 4.
  • the reinforcement comprises only a single structural steel mat 8b embedded with lower boom rod 2 is concrete slab 14. Pairs of diagonal braces of the girder are combined into substantially V-shaped hoops 3a.
  • the reinforcement When used for walls, the reinforcement has two steel mats, as shown in FIGS. 2 and 3, the entire reinforcement being embedded in concrete to form a reinforced wall.
  • a reinforcement for an at least partially prefabricated reinforced concrete slab comprising in combination:
  • two structural steel mats each comprising a plurality of longitudinally extending steel rods and a plurality of transversely extending steel rods substantially perpendicular to the longitudinal rods;
  • a plurality of planar lattice girders extending between the two mats and comprising only a single 5 upper boom rod, a single lower boom rod and affixed thereto a plurality of braces extending diagonally between the upper and lower boom rods, the girder extending in the direction of the longitudinally extending steel rods of the mats;
  • the said braces having bent terminating ends facing opposite the side to which the upper and lower boom rods are affixed, one terminating end partially encircling and thereby supporting a longitudinal rod of the structural steel mats, the opposite terminating end being hook-shaped,
  • said plurality of planar lattice girders being spaced apart along the said structural steel mats;
  • tension rod has the form of a support clamp, one of the ends of the clamp engaging the upper boom rod and a longitudinal rod of one of the structural steel mats associated with the upper boom rod, and the other clamp end engaging a longitudinal rod of the other structural steel mat.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Panels For Use In Building Construction (AREA)
  • Working Measures On Existing Buildindgs (AREA)
US379411A 1972-07-15 1973-07-16 Concrete reinforcement Expired - Lifetime US3890756A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2234941A DE2234941C2 (de) 1972-07-15 1972-07-15 Bewehrung mit einem fachwerkartigen Träger

Publications (1)

Publication Number Publication Date
US3890756A true US3890756A (en) 1975-06-24

Family

ID=5850794

Family Applications (1)

Application Number Title Priority Date Filing Date
US379411A Expired - Lifetime US3890756A (en) 1972-07-15 1973-07-16 Concrete reinforcement

Country Status (14)

Country Link
US (1) US3890756A (xx)
JP (1) JPS4980830A (xx)
AR (1) AR205084A1 (xx)
AT (1) AT325827B (xx)
AU (1) AU473565B2 (xx)
BE (1) BE802137A (xx)
CA (1) CA1006372A (xx)
DE (1) DE2234941C2 (xx)
ES (1) ES416931A1 (xx)
GB (1) GB1436630A (xx)
IL (1) IL42734A (xx)
IT (1) IT1003100B (xx)
NL (1) NL7309707A (xx)
ZA (1) ZA734816B (xx)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5287672A (en) * 1991-04-16 1994-02-22 Oklahoma Steel & Wire Co. Reinforcement bar trussing structure and method of making the same
US20060185280A1 (en) * 2004-05-11 2006-08-24 Plastedil S.A. Load bearing construction element, in particular for manufacturing building floors, and floor structure incorporating such element
CN103938860A (zh) * 2014-04-23 2014-07-23 安徽三建工程有限公司 一种钢筋自承式可调节三角支撑
US20160251856A1 (en) * 2013-11-04 2016-09-01 Samsung C&T Corporation Solid reinforced concrete column based on arrangement of triangular reinforcing bar networks and method of constructing the same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3819473A1 (de) * 1988-06-08 1989-12-14 Ruffer Dittmar Bewehrung fuer flaechenbauteile

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2151861A (en) * 1936-04-16 1939-03-28 Mclellan Steel Dev Corp Girder
US3744207A (en) * 1971-05-10 1973-07-10 G Oroschakoff Reinforcement for reinforced concrete structures
US3778951A (en) * 1969-11-28 1973-12-18 G Oroschakoff Reinforcement

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1963113U (de) * 1967-03-23 1967-06-29 Buckenmayer & Co Gittertraeger aus stahl.
DE2010666A1 (de) * 1970-03-06 1971-09-30 Rheinbau Gmbh, 6500 Mainz Räumlicher Gitterträger für Stahlbetonteile
DE2054871A1 (de) * 1970-11-07 1972-05-10 Baisch, Gerhard, 7416 Gonningen, Bottenschem, Karl, 7900 Ulm Stahlbeton Bewehrungsteil fur ein und doppelseitig armierte Betonteile

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2151861A (en) * 1936-04-16 1939-03-28 Mclellan Steel Dev Corp Girder
US3778951A (en) * 1969-11-28 1973-12-18 G Oroschakoff Reinforcement
US3744207A (en) * 1971-05-10 1973-07-10 G Oroschakoff Reinforcement for reinforced concrete structures

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5287672A (en) * 1991-04-16 1994-02-22 Oklahoma Steel & Wire Co. Reinforcement bar trussing structure and method of making the same
US20060185280A1 (en) * 2004-05-11 2006-08-24 Plastedil S.A. Load bearing construction element, in particular for manufacturing building floors, and floor structure incorporating such element
US7784235B2 (en) * 2004-05-11 2010-08-31 Plastedil S.A. Load bearing construction element, in particular for manufacturing building floors, and floor structure incorporating such element
US20160251856A1 (en) * 2013-11-04 2016-09-01 Samsung C&T Corporation Solid reinforced concrete column based on arrangement of triangular reinforcing bar networks and method of constructing the same
US9915068B2 (en) * 2013-11-04 2018-03-13 Samsung C&T Corporation Solid reinforced concrete column based on arrangement of triangular reinforcing bar networks and method of constructing the same
CN103938860A (zh) * 2014-04-23 2014-07-23 安徽三建工程有限公司 一种钢筋自承式可调节三角支撑
CN103938860B (zh) * 2014-04-23 2016-05-04 安徽三建工程有限公司 一种钢筋自承式可调节三角支撑

Also Published As

Publication number Publication date
JPS4980830A (xx) 1974-08-05
ATA616473A (de) 1975-01-15
IL42734A (en) 1976-05-31
DE2234941A1 (de) 1974-01-31
DE2234941C2 (de) 1983-01-13
BE802137A (fr) 1973-11-05
NL7309707A (xx) 1974-01-17
AU5810673A (en) 1975-01-16
IT1003100B (it) 1976-06-10
GB1436630A (en) 1976-05-19
ES416931A1 (es) 1976-03-01
AU473565B2 (en) 1976-06-24
ZA734816B (en) 1975-07-30
IL42734A0 (en) 1973-10-25
CA1006372A (en) 1977-03-08
AR205084A1 (es) 1976-04-05
AT325827B (de) 1975-11-10

Similar Documents

Publication Publication Date Title
US3401497A (en) Support for reinforcing members
JPH08504009A (ja) アーチの建設方法
US3890756A (en) Concrete reinforcement
US3302360A (en) Method of reinforcing concrete floors and the like, and a reinforcing element therefor
US5220761A (en) Composite concrete on cold formed steel section floor system
US3342004A (en) Masonry wall reinforcement with a-frame construction
US3400508A (en) Framework girder without lower chord
US3550339A (en) Component member of constructions
JPH04505039A (ja) コネクタビームとコネクタプレートから成る構造体
KR200241336Y1 (ko) 콘크리트 타설용 기초구조재
JP2717135B2 (ja) シェル形状構築物の構造
JPH06248757A (ja) トラス組体およびそれを用いた枠体並びに複合材
JP2002070154A (ja) 構造用鋼材の定着構造及び継手構造
TWM428213U (en) Prefabricated cross-beam structure
HUP0003142A2 (hu) Rácsos könnyűbeton födémszerkezet, valamint eljárás a födémszerkezet előre gyártott tartógerendája erősítő keretének az öntésére
JP2812576B2 (ja) 合成床構造
CN218714209U (zh) 一种大跨度、承载力大的预应力单向叠合板
JPH01290853A (ja) 合成床板
JP2000038799A (ja) コンクリート床版の構造
SU922257A1 (ru) Конструкци усилени железобетонных балок
CN210797273U (zh) 一种uhpc预制桥梁桥面板一型纵接缝连接装置
KR200268362Y1 (ko) 콘크리트 타설용 기초구조재
JPH0932175A (ja) 鉄筋トラスとコンクリートによる合成床版の構築工法
JP2003119792A (ja) ワイヤ方式法面工法
US670707A (en) Wall construction.