GB2472468A - Bolted Haunch for a Portal Frame - Google Patents

Bolted Haunch for a Portal Frame Download PDF

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Publication number
GB2472468A
GB2472468A GB0915833A GB0915833A GB2472468A GB 2472468 A GB2472468 A GB 2472468A GB 0915833 A GB0915833 A GB 0915833A GB 0915833 A GB0915833 A GB 0915833A GB 2472468 A GB2472468 A GB 2472468A
Authority
GB
United Kingdom
Prior art keywords
bolted
haunch
universal
cleats
rolled steel
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Withdrawn
Application number
GB0915833A
Other versions
GB0915833D0 (en
Inventor
Michael Harness
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
Publication of GB0915833D0 publication Critical patent/GB0915833D0/en
Publication of GB2472468A publication Critical patent/GB2472468A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
    • E04B1/2403—Connection details of the elongated load-supporting parts
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/38—Arched girders or portal frames
    • E04C3/40—Arched girders or portal frames of metal
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
    • E04B1/2403—Connection details of the elongated load-supporting parts
    • E04B2001/2415—Brackets, gussets, joining plates
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
    • E04B1/2403—Connection details of the elongated load-supporting parts
    • E04B2001/2448—Connections between open section profiles
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
    • E04B2001/2487—Portico type structures

Abstract

A predetermined length of universal steel beam or universal steel column is bolted to the bottom flange of the universal beam or universal column portal rafter, rolled steel angle cleats are fastened to the web of the haunch 1 and the web of the rafter 4 using structural bolts 6. There are rolled steel angle cleats 2 on both sides of the webs, these cleats enable bolting to the vertical steel columns 3 at the eaves and to each other at the apex, the length, size and thickness of the rolled steel angle support cleats 2 are predetermined to suit the loads.

Description

I
Bolted Haunch for Portal Frame.
DESCRIPTION:
Background of the invention.
The portal frame building has been the preferred method of design for many years for commercial building units, it has always been necessary to provide a haunch at the eaves to increase the depth to enable the connection to accommodate the forces being generated. This method requires skilled labour for both setting up the haunch and for welding the haunch to the bottom of the rafter flange together with an end plate for connecting to the column.
Summary of the invention.
This invention makes all the components bolted thus eliminating the welding and the skills required to manufacture the haunch and rafter. It makes it possible to manufacture soley using a CNC saw and drill line Fig 1. Is a 3 d view of a Steel Portal Frame.
Fig 2. Is a view of the eaves haunch Fig 3. Is an exploded view of eaves haunch in fig 2.
Fig 4. Is a view of the apex connection.
Fig 5. Is an exploded view of the apex connection in Fig 4.
Fig 6. Is a 3d view of a building with the portal frames in place.
Looking now in greater detail, Fig 1, shows a portal frame that is equal about the centre line of the building, it shows two vertical columns (3) and two rafters (4) these are the main components of the portal frame both made from universal steel beams or universal steel columns. The rafters carry the roof purlins and the columns carry the side sheeting rails, the purlins and side rails are not shown but the cleats that hold the rails are (8).
The rafters(4) are inclined at a predetermined pitch.
The two main connections of the portal frame are the eaves connection and the apex connection. Fig 2, shows the eaves connection, Fig 3, shows the same connection exploded, the haunch(1) is a piece of universal beam of a predetermined size and length, it is bolted to the bottom flange of the rafter (4) by a predetermined number of bolts(6). The support cleats(2) are of rolled steel angle, there are 4 cleats in total two bolted(7) to the haunch( 1) and two bolted(7) to the rafter(4) one each side of the universal beam web, the length, size and thickness of the rolled steel angles are to be predetermined. The bolts (6) (7) (5) are to be predetermined to suit the loads.
Fig 4 shows the apex connection and Fig 5 shows the apex connection Fig 4 exploded.
The apex connection Fig 4 is constructed in a similar manner as the eaves, underneath the rafter there is a piece of predetermined universal steel beam or universal steel column (I) bolted to the bottom flange of the rafter (4) via a predetermined number of bolts(6). The rolled steel angles(2) are similar to the eaves haunch connection eight in total, two for each end of the rafters(4) and two for each haunch(1) they are bolted in a similar manner via bolts (5) and (7). The size and quantity of the bolts(5)and(7) are to be predetermined to suit the loading.
Fig 6, shows a typical portal frame building, minus the bracings and cold rolled sheeting rails and purlins. The building length, width and height are predetermined to suit the requirements. The end frames are shown lighter than the frames in the middle as they don't carry the same loads. The number of bays are to suit requirements.
List of components; Item 1. The haunch a predetermined length of universal steel beam or universal steel column.
Item 2, Rolled steel angle cleats of a predetermined size, length and thickness.
Item 3. Portal column, made from universal steel beam or universal steel column.
Item 4. Portal rafter, made from universal steel beam or universal steel column.
Item 5. Structural bolts of a predetermined strength.
Item 6. Structural bolts of a predetermined strength.
Item 7. Structural bolts of a predetermined strength.
Item8. Sheeting and purlin cleats.

Claims (3)

  1. CLAIMS: I. A bolted haunch for a portal frame, comprising of a predetermined length and size of a universal steel beam bolted to the bottom flange of the portal rafter, having rolled steel angle cleats fastened to each side of the webs.
  2. 2. A bolted haunch according to claim I having rolled steel angle cleats bolted to each side of the webs enabling the portal rafters to be bolted to the vertical columns.
  3. 3. A bolted haunch according to claim 1 having rolled steel angle cleats bolted to each side of the webs enabling the two rafters to be bolted together at the apex.
GB0915833A 2009-08-07 2009-09-10 Bolted Haunch for a Portal Frame Withdrawn GB2472468A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0913810A GB0913810D0 (en) 2009-08-07 2009-08-07 Bolted haunch for portal frame building

Publications (2)

Publication Number Publication Date
GB0915833D0 GB0915833D0 (en) 2009-10-07
GB2472468A true GB2472468A (en) 2011-02-09

Family

ID=41129786

Family Applications (2)

Application Number Title Priority Date Filing Date
GB0913810A Ceased GB0913810D0 (en) 2009-08-07 2009-08-07 Bolted haunch for portal frame building
GB0915833A Withdrawn GB2472468A (en) 2009-08-07 2009-09-10 Bolted Haunch for a Portal Frame

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB0913810A Ceased GB0913810D0 (en) 2009-08-07 2009-08-07 Bolted haunch for portal frame building

Country Status (1)

Country Link
GB (2) GB0913810D0 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB685575A (en) * 1950-07-20 1953-01-07 London Welding Company Ltd Improvements relating to metal arch construction
GB790372A (en) * 1955-02-15 1958-02-05 Cambridge Engineering And Stru Improvements relating to structural frames
GB1218303A (en) * 1969-03-20 1971-01-06 Boulton & Paul Ltd Portal frames for buildings
US4342177A (en) * 1979-06-18 1982-08-03 Smith Donald A Prefabricated steel frame building construction components and methods
FR2621340A1 (en) * 1987-10-02 1989-04-07 Lesaege Serge Metal frame

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB685575A (en) * 1950-07-20 1953-01-07 London Welding Company Ltd Improvements relating to metal arch construction
GB790372A (en) * 1955-02-15 1958-02-05 Cambridge Engineering And Stru Improvements relating to structural frames
GB1218303A (en) * 1969-03-20 1971-01-06 Boulton & Paul Ltd Portal frames for buildings
US4342177A (en) * 1979-06-18 1982-08-03 Smith Donald A Prefabricated steel frame building construction components and methods
FR2621340A1 (en) * 1987-10-02 1989-04-07 Lesaege Serge Metal frame

Also Published As

Publication number Publication date
GB0915833D0 (en) 2009-10-07
GB0913810D0 (en) 2009-09-16

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)