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GB674000A - Improvements in or relating to prestressed concrete structures - Google Patents

Improvements in or relating to prestressed concrete structures

Info

Publication number
GB674000A
GB674000A GB2648249A GB2648249A GB674000A GB 674000 A GB674000 A GB 674000A GB 2648249 A GB2648249 A GB 2648249A GB 2648249 A GB2648249 A GB 2648249A GB 674000 A GB674000 A GB 674000A
Authority
GB
United Kingdom
Prior art keywords
reinforcement
shells
supported
shell
beams
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
Application number
GB2648249A
Inventor
Victor Moses Silvera
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.)
L G MOUCHEL AND PARTNERS Ltd
Original Assignee
L G MOUCHEL AND PARTNERS Ltd
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 L G MOUCHEL AND PARTNERS Ltd filed Critical L G MOUCHEL AND PARTNERS Ltd
Priority to GB2648249A priority Critical patent/GB674000A/en
Publication of GB674000A publication Critical patent/GB674000A/en
Expired 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
    • E04B1/32—Arched structures; Vaulted structures; Folded structures
    • E04B1/3205—Structures with a longitudinal horizontal axis, e.g. cylindrical or prismatic structures
    • 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
    • E04B1/32—Arched structures; Vaulted structures; Folded structures
    • E04B2001/3258—Arched structures; Vaulted structures; Folded structures comprised entirely of a single self-supporting panel
    • 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
    • E04B1/32—Arched structures; Vaulted structures; Folded structures
    • E04B2001/327—Arched structures; Vaulted structures; Folded structures comprised of a number of panels or blocs connected together forming a self-supporting structure

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Rod-Shaped Construction Members (AREA)

Abstract

674,000. Prestressed concrete; beams; roofs. MOUCHEL & PARTNERS, Ltd., L. G. Aug. 4, 1950 [Oct. 14, 1949], No. '26482/49. Class.20(iv). A concrete shell of substantially semicircular cross section is provided. with a prestressing reinforcement of continuous curvature, the reinforcement imparting to the edges a set of reactions equal to those which would be produced by a rigid support placed under the edges. In Fig. 3 the invention is shown applied to a roof structure which consists of a number of bays, each covered by a shell 10 of thin concrete. Below the junction of each adjoining pair of shells is placed a beam 12, supported at its ends. The beam, which is shown in Fig. 7, is provided with a curved duct extending from one end to the other, a steel reinforcing element 17 being threaded through the duct. The reinforcing element is tensioned and anchored against the beam ends and, due to its curvature, exerts a lifting force which increases towards the mid-point of the lengths of the beam. The hogging of the beam due to this force is prevented by prestressed reinforcement 19, 21 and 22, whilst the force serves to counteract the downward thrust due to the weight of the shells, so that shells of considerable length can be supported without sagging by beams which are supported only at their ends. The separate beams may be dispensed with by placing the curved reinforcement in the material of each shell. In a modification, Figs. 8 to 10 (not shown), polygonal shells are supported without deflection in a similar manner, the curved reinforcement being arranged in each side member and tensioned so as to produce the same reactions at the junctions of the members as would be produced by continuous rigid supporting means.
GB2648249A 1949-10-14 1949-10-14 Improvements in or relating to prestressed concrete structures Expired GB674000A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2648249A GB674000A (en) 1949-10-14 1949-10-14 Improvements in or relating to prestressed concrete structures

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2648249A GB674000A (en) 1949-10-14 1949-10-14 Improvements in or relating to prestressed concrete structures

Publications (1)

Publication Number Publication Date
GB674000A true GB674000A (en) 1952-06-18

Family

ID=10244332

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2648249A Expired GB674000A (en) 1949-10-14 1949-10-14 Improvements in or relating to prestressed concrete structures

Country Status (1)

Country Link
GB (1) GB674000A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3015912A (en) * 1957-05-23 1962-01-09 Stanley H Fistedis Foundation structure
US3247629A (en) * 1962-06-05 1966-04-26 Behlen Mfg Company Inc Catenary roof structure
US3472033A (en) * 1966-10-26 1969-10-14 H J Gruy & Associates Inc Fluid storage apparatus
US4357782A (en) * 1979-06-22 1982-11-09 Emil Peter Domed support framework or truss

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3015912A (en) * 1957-05-23 1962-01-09 Stanley H Fistedis Foundation structure
US3247629A (en) * 1962-06-05 1966-04-26 Behlen Mfg Company Inc Catenary roof structure
US3472033A (en) * 1966-10-26 1969-10-14 H J Gruy & Associates Inc Fluid storage apparatus
US4357782A (en) * 1979-06-22 1982-11-09 Emil Peter Domed support framework or truss

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