GB1152554A - A Steel Lattice Beam and a method of manufacturing the same - Google Patents
A Steel Lattice Beam and a method of manufacturing the sameInfo
- Publication number
- GB1152554A GB1152554A GB2082767A GB2082767A GB1152554A GB 1152554 A GB1152554 A GB 1152554A GB 2082767 A GB2082767 A GB 2082767A GB 2082767 A GB2082767 A GB 2082767A GB 1152554 A GB1152554 A GB 1152554A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lattice
- portions
- loops
- strained
- rod
- 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
Links
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
- E04C5/065—Light-weight girders, e.g. with precast parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21F—WORKING OR PROCESSING OF METAL WIRE
- B21F27/00—Making wire network, i.e. wire nets
- B21F27/12—Making special types or portions of network by methods or means specially adapted therefor
- B21F27/20—Making special types or portions of network by methods or means specially adapted therefor of plaster-carrying network
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
- E04C3/08—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with apertured web, e.g. with a web consisting of bar-like components; Honeycomb girders
- E04C3/09—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with apertured web, e.g. with a web consisting of bar-like components; Honeycomb girders at least partly of bent or otherwise deformed strip- or sheet-like material
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
- E04C2003/0486—Truss like structures composed of separate truss elements
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
- E04C2003/0486—Truss like structures composed of separate truss elements
- E04C2003/0491—Truss like structures composed of separate truss elements the truss elements being located in one single surface or in several parallel surfaces
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Rod-Shaped Construction Members (AREA)
- Wire Processing (AREA)
Abstract
1,152,554. Making lattice girders; altering physical structure. J. G. S. KELLER. 4 May, 1967 [13 May, 1966], No. 20827/67. Headings B3A and B3V. [Also in Division E1] In order to improve the strength of a steel lattice girder for reinforcing concrete floors, the lattice web portions 17<SP>1</SP> other than at the bottom chord or chords 11<SP>1</SP> are hardened by cold working. The girder is made by first forming equidistant spaced loops 14 in a steel rod and clamping the loops in slidable vices. The portions of the rod between the clamped loops are pressed by a wedge shaped ram to form a sinuously extending lattice 13<SP>1</SP>, the vices moving towards each other a limited distance, whereupon further movement of the ram causes the portions 17<SP>1</SP> to be strained preferably by about 5%. The peak portions of the lattice 13<SP>1</SP> may also be clamped to avoid straining in these areas. The unstrained loops 14<SP>1</SP> of the lattice are finally electric resistance welded to two spaced apart bottom chord rods 11<SP>1</SP>. A channel section top chord (12) (Fig. 1, not shown), may also be welded to the peaks of the lattice 13<SP>1</SP>. The lattice 13<SP>1</SP> may alternatively be formed from individual components or from a rod having alternate strained and non strained portions.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEK0059247 | 1966-05-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1152554A true GB1152554A (en) | 1969-05-21 |
Family
ID=7229058
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2082767A Expired GB1152554A (en) | 1966-05-13 | 1967-05-04 | A Steel Lattice Beam and a method of manufacturing the same |
Country Status (4)
Country | Link |
---|---|
AT (1) | AT279864B (en) |
DE (1) | DE1609700C3 (en) |
ES (1) | ES340459A1 (en) |
GB (1) | GB1152554A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20180333764A1 (en) * | 2015-10-21 | 2018-11-22 | Hubert RAPPERSTORFER | Production plant for manufacturing reinforcement elements |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT400966B (en) * | 1992-01-31 | 1996-05-28 | Bucher Franz | Lattice girder |
-
1966
- 1966-05-13 DE DE19661609700 patent/DE1609700C3/en not_active Expired
-
1967
- 1967-05-04 GB GB2082767A patent/GB1152554A/en not_active Expired
- 1967-05-09 AT AT433267A patent/AT279864B/en not_active IP Right Cessation
- 1967-05-12 ES ES340459A patent/ES340459A1/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20180333764A1 (en) * | 2015-10-21 | 2018-11-22 | Hubert RAPPERSTORFER | Production plant for manufacturing reinforcement elements |
Also Published As
Publication number | Publication date |
---|---|
DE1609700C3 (en) | 1975-08-21 |
DE1609700A1 (en) | 1970-04-30 |
DE1609700B2 (en) | 1975-01-16 |
ES340459A1 (en) | 1968-06-01 |
AT279864B (en) | 1970-03-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |