Read e-book online ACI 318-11: Building Code Requirements for Structural PDF

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By ACI 318 Committee

ISBN-10: 087031744X

ISBN-13: 9780870317446

The "Building Code standards for Structural Concrete" ("Code") covers the fabrics, layout, and development of structural concrete utilized in structures and the place acceptable in nonbuilding constructions. The Code additionally covers the power evaluate of latest concrete structures.

Among the topics lined are: agreement records; inspection; fabrics; sturdiness necessities; concrete caliber, blending, and putting; formwork; embedded pipes; development joints; reinforcement information; research and layout; power and serviceability; flexural and axial lots; shear and torsion; improvement and splices of reinforcement; slab structures; partitions; footings; precast concrete; composite flexural individuals; prestressed concrete; shells and folded plate contributors; power review of current constructions; provisions for seismic layout; structural undeniable concrete; strut-and- tie modeling in Appendix A; substitute layout provisions in Appendix B; replacement load and power aid components in Appendix C; and anchoring to concrete in Appendix D.

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Additional info for ACI 318-11: Building Code Requirements for Structural Concrete and Commentary (318-11)

Example text

9 shows a schematic diagram of an exothermic gas generator operating with crude oil. Its characteristic feature is that the burner and retort form a common unit. F I G . 9 SCHEMATIC FLOW DIAGRAM OF AN EXOTHERMIC GAS GENERATOR OPERATING WITH CRUDE OIL (Ebner Industrieofenbau, Austria). 1, Air inlet; 2, inlet for crude oil; 3, pressure gauge; 4, retort; 5, gas cooler; 6, filter; 7, sulphur-removal unit; 8, 0 2 -removal unit; 9, absorption dryer; 10, gas outlet The air and crude oil enter the system at points 1 and 2 respectively and then pass to the retort (4) throughflowmeters.

A diagram of the unit (which is installed between the retort and the drying unit) is presented in Fig. 8. FIG. 8 DIAGRAM OF A SULPHUR-REMOVAL UNIT (Aichelin Industrieofenbau, Austria). 4. The protective gas enters at point 1. Iron oxide is placed on grids (3). The purified gas leaves at point 4. The exogas generated in the retort of an exothermic gas generator contains a relatively large amount of carbon dioxide and water vapour. The water vapour content and, in consequence, the dew point is sometimes reduced by drying, the dew point of the various exogases varying between +20 and -50°C.

11) Mono-CHN generators or NX generators are those which produce a gas containing some H2 and CO in addition to the N2. 2 -40 -40 The 223 and 224 gases have steam and air admitted to convert CO to C 0 2 using a catalyst. The C 0 2 is subsequently removed and the gas is dried. The 201 class is lean exogas with the C 0 2 and H 2 0 removed. S. A. The term "monogas" is derived from the Greek monos (alone), the gas atmosphere being composed mainly of nitrogen with only small amounts of carbon monoxide and hydrogen.

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ACI 318-11: Building Code Requirements for Structural Concrete and Commentary (318-11) by ACI 318 Committee

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