By ACI
ISBN-10: 0870311247
ISBN-13: 9780870311246
This document offers thoughts for the layout and development of wrapped, round, prestressed concrete constructions regularly occurring for liquid or bulk garage. those constructions are developed utilizing skinny cylindrical shells of both concrete or shotcrete. Shotcrete and precast concrete center partitions include a skinny metal diaphragm that serves either as a liquid barrier and vertical reinforcement. Cast-in-place concrete center partitions include both vertical prestressing or a metal diaphragm. options are given for circumferential prestressing completed through twine or strand wrapping. In wrapping, the cord or strand is totally tensioned sooner than putting it at the structural center wall. techniques for fighting corrosion of the prestressing components are emphasised. The layout and development of dome roofs also are covered.
Many techniques of this document can be utilized to related buildings containing low-pressure gases, dry fabrics, chemical substances, or different fabrics in a position to growing outward pressures. This document isn't meant for software to nuclear reactor strain vessels or cryogenic containment constructions.
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Additional resources for ACI 372R-03: Design and Construction of Circular Wire and Strand Wrapped Prestressed Concrete Structures
Sample text
The degree to which the built environment is sustainable is therefore the degree to which it manages to adequately shelter every man, woman and child on the planet, and this sheltering is not the province of architecture. This ‘green utilitarianism’ seems to require either that we put the art of architecture to one side until all are sheltered, or redefine architecture exclusively as shelter. Either way, the conventional view of architecture as shelter and art, or at least artful shelter, is lost.
While teaching at the Bauhaus, Moholy-Nagy wrote a book entitled von material zu architektur (1929), in which he was concerned to point out to his students that if they pursued functionalism the correct way, that is, with a comprehensive understanding of task, tools and material, then their designs, ‘even without studying a natural model’ would nevertheless be ‘confirmed as agreeing with nature’s own creations’ (Moholy-Nagy in Schildt, 1986: 219). In other words, Bauhaus students would find themselves imitating the laws of nature ‘naturally’, by imitating the way nature ‘thinks’.
It is the view of nature as measurable and quantifiable that is referred to in the term ‘environment’, material surroundings that include not just the ‘natural’ environment – bees, trees, sky, etc. – but the built environment as well, with its own measurable physical properties, its own atmospheres, its own micro-climates. It is these two domains that the non-vitalist version of ecology2 seeks to understand, as they affect our activities and we affect theirs. Like all science, environmental science aspires to a position of objectivity.
ACI 372R-03: Design and Construction of Circular Wire and Strand Wrapped Prestressed Concrete Structures by ACI
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