432_CHAPTER 14 - Chapter 14 1. Analysis (+) flexibility (+)...

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Chapter 14 1. Analysis • (+) flexibility • (+) fire resistance • (+) character • (-) heavy • (-) construction 2. Typical uses • foundations • slabs • large, complex, or Irregular elements 3. TWA terminal. Kennedy airport, NYC. Eero Saarinen. 1956-62. 4. Building codes • protection of steel – cover – aggregate • joints – vs. Horizontal pressures – structural continuity 5. Level surface of concrete Directly supported by ground • acts primarily in compression • applications. .. – roads, sidewalks – runways – ground floors 6. Preparation • exposed subsoil • formwork – 2’x4’ • crushed stone • moisture barrier? • sand? • welded wire fabric 7. Pouring Finishing • strike off – at level
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• floated – by machine or hand • troweled 8. Damp curing • essential for quality!!! • one week minimum (28 days preferred) • methods . .. – damp, absorbent material – impervious membrane – liquid curing compound 9. Trahan architects. Church complex, louisiana, usa. 2005. 10.Cracking - causes • concrete shrinkage • temperature • concentrated loading • frost heaves • settlement 11.Cracking - solutions • welded wire fabric • control joints - draw in a groove where you want crack • expansion joints – 2 pieces of metal designed to move, allows concrete to heat up, move, and shrink while still separate • isolation joints – separating structures and materials, caulking
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This note was uploaded on 03/27/2012 for the course ARCH 432 taught by Professor Mckinny during the Spring '12 term at University of Louisiana at Lafayette.

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432_CHAPTER 14 - Chapter 14 1. Analysis (+) flexibility (+)...

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