Download e-book for kindle: AWWA D110-13 Wire- and Strand-Wound, Circular, Prestressed by American Water Works Association Staff

By American Water Works Association Staff

ISBN-10: 1583219803

ISBN-13: 9781583219805

ISBN-10: 1613002572

ISBN-13: 9781613002575

This commonplace describes present advised perform for the layout, development, inspection, and upkeep of cord- and strand-wound, round, prestressed concrete water-containing buildings with the subsequent 4 kinds of center partitions: 1) variety I-cast-in-place concrete with vertical prestressed reinforcement 2) kind II-shotcrete with a metal diaphragm three) kind IV-cast-in-place concrete with a metal diaphragm This variation displays present considering and development practices, and adjustments contain yet aren't restricted to 1)References to ACI 350, Code necessities for Environmental Engineering Concrete constructions 2) The addition of particular energy necessities for concrete slab three) "Portland cement" is now often called "cementitious fabric" four) The addition of "urethane elastomer" as one of those sealant and joint filler five) An replace to the minimal layout wind and seismic rather a lot 6) The addition of building so much as a roof layout load 7) a discount of the minimal roof rise-to-span ratio eight) The addition of necessities for compaction of cohesionless base fabric, comparable to gravel, less than the ground nine) tips on stipulations the place an inside ladder and/or wall accessway will be acceptable eleven) Incorporation of the hot seismic layout procedure in keeping with the IBC, ASCE 7-05 code criteria and present seismic technological advances 12) The inclusion of urethane as an appropriate fabric for crack injection

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Extra info for AWWA D110-13 Wire- and Strand-Wound, Circular, Prestressed Concrete Water Tanks

Example text

Consideration shall also be given to the effects of all loads and load combinations, including stresses induced by temperature and moisture gradients. The recommendations herein pertain to serviceload conditions and serviceability requirements. However, to ensure the safety of the structure, the design must also meet the strength requirements of this standard and ACI 350. All applicable sections of the latest edition of ACI 350, including supplements and the chapters describing precast and prestressed concrete, shall be followed except when supplemented or modified by provisions of this standard.

75f pu. 70f pu. Table 1 Allowable stresses in concrete and shotcrete Description Notation Allowable Stresses* Compression: horizontal or vertical in extreme fiber. 45f ´c final. Tension: vertical, in extreme fiber of all tanks without a diaphragm. All tanks without a diaphragm shall be vertically prestressed. ft Vertical flexural tensile stresses to be reduced to zero by vertical prestressing as in Sec. 3 or taken by the auxiliary nonprestressed reinforcement at the stresses in paragraphs of Sec.

7 Operational loads, if any. 8 Loads created by roof openings. 3 Floor design loads. 1 Dead loads. 2 Water loads. 3 Earthquake loads. 4 Uplift caused by groundwater or expansive soils. 5 Radial forces from the base of the tank wall. 6 Differential and total settlement. 7 Construction loads. 4 Control of loads. 1 Overflow systems. 2 Venting. 3 Internal freeboard to provide room for sloshing during an earthquake. 4 Perimeter and underfloor drainage systems to limit hydrostatic pressures. 5 Drainage.

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AWWA D110-13 Wire- and Strand-Wound, Circular, Prestressed Concrete Water Tanks by American Water Works Association Staff


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