EP0884431A1 - The shear beam - Google Patents
The shear beam Download PDFInfo
- Publication number
- EP0884431A1 EP0884431A1 EP96937972A EP96937972A EP0884431A1 EP 0884431 A1 EP0884431 A1 EP 0884431A1 EP 96937972 A EP96937972 A EP 96937972A EP 96937972 A EP96937972 A EP 96937972A EP 0884431 A1 EP0884431 A1 EP 0884431A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- reinforcing steel
- reinforcements
- lower longitudinal
- shear resistant
- resistant beam
- 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.)
- Withdrawn
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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
- E04C5/0604—Prismatic or cylindrical reinforcement cages composed of longitudinal bars and open or closed stirrup rods
- E04C5/0618—Closed cages with spiral- or coil-shaped stirrup rod
Definitions
- the present invention relates to a shear beam in jing.
- Metal framework technology of steel concrete beam adopted extensively at home and abroad at present is always as that arrangement of longitudinal reinforcement is parallel in up and down of beam; up and down reinforcements are wrapped and integrated by bundled reinforcements.
- Such beam has mainly lower rigidity, shear resistance and extension.
- reinforcements are inserted each other by pouring concrete for connecting, stressed case of concrete at joint of the beam and column is complicated which is easily destroyed in earthquake.
- a shear resistant beam is designed by the present invention. The disadvantage of metal framework in the high block of steel concrete structure is avoided.
- the object of the present invention is to overcome disadvantage of shear resistant beam for metal framework and to provide a novel shear resistant beam which is simple in fabricating technology, it rigid, has a shear resistance which can be increased by more than two times, and with which the costs can be reduced, and 10 per cent of steel material can be saved.
- a shear resistant beam for buildings which is provided by the present invention, consists of upper and lower reinforcements, tension reinforcements and connecting plates, characterized in that tension reinforcements of which are knotted in the form of intersection on the upper and lower longitudinal reinforcements which forms "X"-type framed structure and is fixed with welding at each intersecting point, which is fixed with welding of transverse straight reinforcement at the intersecting points of upper and lower longitudinal reinforcements in the form of helical.
- the shear resistant beam of the present invention comprises transverse reinforcing steel 1, upper and lower longitudinal reinforcing steel 2, diagonal tension reinforcing steel 4 and connecting plates 3.
- the diagonal reinforcing steel bars 4 are knotted in a zig-zag form to intersect and lead around the upper and lower longitudinal reinforcing steel 2.
- Individual steel bars 4 are arranged so as to form a "X"-type frame structure and are fixed by welding at each intersecting point.
- the transverse straight reinforcing steel elements 1 are fixed by welding at the intersecting points of the upper and lower longitudinal reinforcing steel elements 2 and of the tension reinforcing steel elements 4.
- the bundled reinforcement 5 in the form of wire are wrapped helically around upper and lower longitudinal reinforcing steel elements 2.
- connecting plates 3 welded at the ends of the upper and lower longitudinal reinforcing steel elements 2. Holes 6 are provided in the connecting plate 3 for connecting purposes.
- the shear resistant beam is connected and fixed by the bolts through holes 6 to structure of the building, i. e. column or foundation.
- the shear resistant beam of the present invention is made piecewise and in layers. Firstly, the upper and lower longitudinal reinforcing steel elements 2 are knotted by the tension reinforcing steel elements 4 which form a "X"-type frame structure. The elements are fixed by welding at each intersecting point. Then based on practical requirement further layers or frames are superposed and welded to the transverse straight reinforcing elements 1 to form a whole shear resistant beam. The bundled reinforcements are wrapped around the whole welded shear resistant beam in the form of a helix. The connecting plates 3 are welded at the ends of the shear resistant beam. The shear resistant beam and the appropriate structure of the building (column, foundation) are connected and fixed via the connecting plates by use of bolts, and thereafter concrete can be poured into the framework shell.
- the shear resistant beam is simple in fabricating technology, its rigidity, shear resistance can be increased by more than two times. Furthermore, the costs can be reduced and the 10 % steel material can be saved.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Reinforcement Elements For Buildings (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The present invention relates to a shear resistant beam
in buildings which consists of upper and lower
longitudinal reinforcements (2), diagonal tension
reinforcements (4) and connecting plates (3). The
tension reinforcements (4) are knotted in the form of
intersection of the upper and lower longitudinal
reinforcements (2). Each intersecting point is fixed by
welding to form a "X"-type frame structure. Based on the
required thickness, the frames are welded to a whole
shear resistant beam by use of transverse straight
reinforcements (1). The connecting plates 3 are welded
at the ends of the shear resistant beam. The shear
resistant beam and the building structure are connected
through the connecting plates by bolts. The shear
resistant beam is simple in fabricating technology, its
rigidity, shear resistance can be increased by more than
two times, and the costs can be reduced and 10 per cent
of steel material can be saved.
Description
The present invention relates to a shear beam in
bilding.
Metal framework technology of steel concrete beam
adopted extensively at home and abroad at present is always
as that arrangement of longitudinal reinforcement is
parallel in up and down of beam; up and down reinforcements
are wrapped and integrated by bundled reinforcements. Such
beam has mainly lower rigidity, shear resistance and
extension. When connecting beam and column, reinforcements
are inserted each other by pouring concrete for connecting,
stressed case of concrete at joint of the beam and column is
complicated which is easily destroyed in earthquake. A shear
resistant beam is designed by the present invention. The
disadvantage of metal framework in the high block of steel
concrete structure is avoided.
The object of the present invention is to overcome
disadvantage of shear resistant beam for metal framework and
to provide a novel shear resistant beam which is simple in
fabricating technology, it rigid, has a shear resistance
which can be increased by more than two times, and with
which the costs can be reduced, and 10 per cent of steel
material can be saved.
A shear resistant beam for buildings which is
provided by the present invention, consists of upper and
lower reinforcements, tension reinforcements and connecting
plates, characterized in that tension reinforcements of
which are knotted in the form of intersection on the upper
and lower longitudinal reinforcements which forms "X"-type
framed structure and is fixed with welding at each
intersecting point, which is fixed with welding of
transverse straight reinforcement at the intersecting points
of upper and lower longitudinal reinforcements in the form
of helical. There are connecting plates welded at the ends
of the upper and lower longitudinal reinforcements, there
are holes provided on the connecting plates for connecting
shear beam and shear column with bolts.
- Fig. 1
- is a schematic perspective view of the structure of
the present invention wherein
- 1 - transverse straight reinforcing steel element,
- 2 - upper and lower longitudinal reinforcing steel element,
- 3 - connecting plate,
- 4 - diagonal reinforcing steel element
- 5 - bundled reinforcing wire
- 6 - hole
The shear resistant beam of the present invention
comprises transverse reinforcing steel 1, upper and lower
longitudinal reinforcing steel 2, diagonal tension
reinforcing steel 4 and connecting plates 3. The diagonal
reinforcing steel bars 4 are knotted in a zig-zag form to
intersect and lead around the upper and lower longitudinal
reinforcing steel 2. Individual steel bars 4 are arranged so
as to form a "X"-type frame structure and are fixed by
welding at each intersecting point. The transverse straight
reinforcing steel elements 1 are fixed by welding at the
intersecting points of the upper and lower longitudinal
reinforcing steel elements 2 and of the tension reinforcing
steel elements 4. The bundled reinforcement 5 in the form of
wire are wrapped helically around upper and lower
longitudinal reinforcing steel elements 2. There are
connecting plates 3 welded at the ends of the upper and
lower longitudinal reinforcing steel elements 2. Holes 6 are
provided in the connecting plate 3 for connecting purposes.
The shear resistant beam is connected and fixed by the bolts
through holes 6 to structure of the building, i. e. column
or foundation.
The shear resistant beam of the present invention is
made piecewise and in layers. Firstly, the upper and lower
longitudinal reinforcing steel elements 2 are knotted by the
tension reinforcing steel elements 4 which form a "X"-type
frame structure. The elements are fixed by welding at each
intersecting point. Then based on practical requirement
further layers or frames are superposed and welded to the
transverse straight reinforcing elements 1 to form a whole
shear resistant beam. The bundled reinforcements are wrapped
around the whole welded shear resistant beam in the form of
a helix. The connecting plates 3 are welded at the ends of
the shear resistant beam. The shear resistant beam and the
appropriate structure of the building (column, foundation)
are connected and fixed via the connecting plates by use of
bolts, and thereafter concrete can be poured into the
framework shell.
The shear resistant beam is simple in fabricating
technology, its rigidity, shear resistance can be increased
by more than two times. Furthermore, the costs can be
reduced and the 10 % steel material can be saved.
Claims (1)
- A shear resistant beam used in building which comprises upper and lower longitudinal reinforcing steel elements (2) diagonal tension reinforcing elements (4), and connecting plate means (3),
characterized in that the diagonal tension reinforcing elements (4) are knotted in the form of intersections of the upper and lower longitudinal reinforcing steel elements (2) so as to form a "X"-type frame structure wherein each intersecting point is fixed; in that transverse straight reinforcing steel elements (1) are fixed by welding at the intersecting points to the upper and lower longitudinal reinforcing steel elements (2) and the diagonal tension reinforcing steel elements (4); in that the bundled reinforcements (5) are wrapped around the upper and lower longitudinal reinforcing steel elements (2); and in that the connecting plate means having holes therein are welded at the ends of the upper and lower longitudinal reinforcing steel elements (2).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95227571U CN2248205Y (en) | 1995-11-22 | 1995-11-22 | Shear beam |
| CN95227571 | 1995-11-22 | ||
| PCT/CN1996/000098 WO1997019233A1 (en) | 1995-11-22 | 1996-11-08 | The shear beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP0884431A1 true EP0884431A1 (en) | 1998-12-16 |
Family
ID=5103059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP96937972A Withdrawn EP0884431A1 (en) | 1995-11-22 | 1996-11-08 | The shear beam |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0884431A1 (en) |
| JP (1) | JP2000500540A (en) |
| CN (1) | CN2248205Y (en) |
| WO (1) | WO1997019233A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GR1003584B (en) * | 2000-05-29 | 2001-05-22 | Αν. Γεωργιος Κασταναρας | Elements from concrete iron bar for the construction of concrete reinforcement |
| WO2018165193A1 (en) * | 2017-03-06 | 2018-09-13 | Isotruss Industries Llc | Composite lattice beam |
| CN112064788A (en) * | 2020-08-21 | 2020-12-11 | 盐城工学院 | Reinforced concrete frame column reinforcing structure and reinforcing method |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2300654A (en) * | 1995-05-04 | 1996-11-13 | Univ Sheffield | Shear reinforcement for reinforced concrete |
| CN108035599B (en) * | 2017-12-22 | 2019-12-13 | 青岛土木建工集团有限公司 | A earthquake-resistant structure and shear force roof beam for shear force roof beam |
| KR101970581B1 (en) * | 2018-11-22 | 2019-04-19 | 한국철강산업(주) | Jig device for manufacturing a reinforced square cage, method of manufacturing foldable reinforced square cage using the same |
| CN109610872B (en) * | 2018-12-29 | 2021-03-16 | 北京工业大学 | Reinforced concrete beam column joint edge reinforcing method |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3751869A (en) * | 1971-10-04 | 1973-08-14 | F Sparber | Wire support structure |
| SU1454929A2 (en) * | 1987-05-22 | 1989-01-30 | Центральный Научно-Исследовательский И Проектный Институт Типового И Экспериментального Проектирования Животноводческих Комплексов По Производству Молока,Говядины И Свинины "Гипронисельхоз" | Reinforcement skeleton |
| SU1617117A1 (en) * | 1989-01-17 | 1990-12-30 | Латвийский Научно-Исследовательский И Экспериментально-Технологический Институт Строительства | Reinforcing cage of ferroconcrete compressed member |
| SE467788B (en) * | 1989-12-04 | 1992-09-14 | Paalgruppen Geomekan Ab | MANUFACTURED TO MANUFACTURE ARMING FOR CONCRETE ELEMENTS, PRELIMINARY CONCRETE PILLARS, ARMING AND SUPPORT ORGANIZATION INCLUDED IN DIFFICULT AND CONCRETE ELEMENTS WITH DIFFICULT ARMING |
-
1995
- 1995-11-22 CN CN95227571U patent/CN2248205Y/en not_active Expired - Fee Related
-
1996
- 1996-11-08 WO PCT/CN1996/000098 patent/WO1997019233A1/en not_active Application Discontinuation
- 1996-11-08 JP JP9519263A patent/JP2000500540A/en active Pending
- 1996-11-08 EP EP96937972A patent/EP0884431A1/en not_active Withdrawn
Non-Patent Citations (1)
| Title |
|---|
| See references of WO9719233A1 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GR1003584B (en) * | 2000-05-29 | 2001-05-22 | Αν. Γεωργιος Κασταναρας | Elements from concrete iron bar for the construction of concrete reinforcement |
| WO2018165193A1 (en) * | 2017-03-06 | 2018-09-13 | Isotruss Industries Llc | Composite lattice beam |
| CN112064788A (en) * | 2020-08-21 | 2020-12-11 | 盐城工学院 | Reinforced concrete frame column reinforcing structure and reinforcing method |
| CN112064788B (en) * | 2020-08-21 | 2022-04-01 | 盐城工学院 | Reinforced concrete frame column reinforcing structure and reinforcing method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2000500540A (en) | 2000-01-18 |
| WO1997019233A1 (en) | 1997-05-29 |
| CN2248205Y (en) | 1997-02-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN |
|
| 17P | Request for examination filed |
Effective date: 19980518 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): DE FR GB |
|
| 18W | Application withdrawn |
Withdrawal date: 19981106 |