FR2268924A1 - Inflatable formwork for domed concrete structure - cover over sheet clamped over plinth by strap and inflatable ring - Google Patents

Inflatable formwork for domed concrete structure - cover over sheet clamped over plinth by strap and inflatable ring

Info

Publication number
FR2268924A1
FR2268924A1 FR7414705A FR7414705A FR2268924A1 FR 2268924 A1 FR2268924 A1 FR 2268924A1 FR 7414705 A FR7414705 A FR 7414705A FR 7414705 A FR7414705 A FR 7414705A FR 2268924 A1 FR2268924 A1 FR 2268924A1
Authority
FR
France
Prior art keywords
inflatable
plinth
concrete structure
domed
strap
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Withdrawn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
FR7414705A
Other languages
French (fr)
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.)
Joint Francais SNC
Original Assignee
Joint Francais SNC
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 Joint Francais SNC filed Critical Joint Francais SNC
Priority to FR7414705A priority Critical patent/FR2268924A1/en
Publication of FR2268924A1 publication Critical patent/FR2268924A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
    • E04G11/04—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for structures of spherical, spheroid or similar shape, or for cupola structures of circular or polygonal horizontal or vertical section; Inflatable forms
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
    • E04G11/04—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for structures of spherical, spheroid or similar shape, or for cupola structures of circular or polygonal horizontal or vertical section; Inflatable forms
    • E04G11/045—Inflatable forms

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)

Abstract

Inflatable framework for an egg shaped concrete structure employs an inflatable skin (3) which is clamped against a collar (2) around a concrete plinth (1) inside its open mouth, by a rubber sleeve (11) around its outside, the latter having a steel band (10) embedded inside, so that it can be tightened by a turnbuckle. To assist the retention of the inflatable skin, its bottom edge is formed into a loop (4) around a cable (5) which can be also tensioned by a turnbuckle. Next, an inflatable ring (15) in the form of a flat strip when deflated, with lace-up ends, is positioned over the whole joint, and inflated. Finally a protective cover (20) is positioned over the inflatable skin (3) and the inflatable ring, so that concrete can be poured over.
FR7414705A 1974-04-26 1974-04-26 Inflatable formwork for domed concrete structure - cover over sheet clamped over plinth by strap and inflatable ring Withdrawn FR2268924A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7414705A FR2268924A1 (en) 1974-04-26 1974-04-26 Inflatable formwork for domed concrete structure - cover over sheet clamped over plinth by strap and inflatable ring

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7414705A FR2268924A1 (en) 1974-04-26 1974-04-26 Inflatable formwork for domed concrete structure - cover over sheet clamped over plinth by strap and inflatable ring

Publications (1)

Publication Number Publication Date
FR2268924A1 true FR2268924A1 (en) 1975-11-21

Family

ID=9138218

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7414705A Withdrawn FR2268924A1 (en) 1974-04-26 1974-04-26 Inflatable formwork for domed concrete structure - cover over sheet clamped over plinth by strap and inflatable ring

Country Status (1)

Country Link
FR (1) FR2268924A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2591642A1 (en) * 1985-12-18 1987-06-19 Leviel Jean Luc Diametrically retractable inflatable formwork
WO1995012727A1 (en) * 1993-11-01 1995-05-11 H.G.Tech Ab Method of manufacturing shell formed constructions
WO1996033324A1 (en) * 1995-04-20 1996-10-24 H.G. Tech Ab Method of manufacturing shell formed constructions
CN110029817A (en) * 2019-05-21 2019-07-19 贵州建工集团第四建筑工程有限责任公司 Core Walls Structure inner template, which is integrally pacified, tears open and lifting system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2591642A1 (en) * 1985-12-18 1987-06-19 Leviel Jean Luc Diametrically retractable inflatable formwork
WO1995012727A1 (en) * 1993-11-01 1995-05-11 H.G.Tech Ab Method of manufacturing shell formed constructions
WO1996033324A1 (en) * 1995-04-20 1996-10-24 H.G. Tech Ab Method of manufacturing shell formed constructions
CN110029817A (en) * 2019-05-21 2019-07-19 贵州建工集团第四建筑工程有限责任公司 Core Walls Structure inner template, which is integrally pacified, tears open and lifting system

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Legal Events

Date Code Title Description
ST Notification of lapse