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ACI 350-01 PDF

Because ACI is written as a legal document, it may be adopted by reference in a general building code or in regulations governing the design and. An ACI Standard ACI Committee , American Concrete Institute Environmental Engineering Concrete Structures (ACI ), hereinafter called the code. – Free download as PDF File .pdf), Text File .txt) or read online for free. Water Tank Design (Aci & ). Uploaded by.

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/R Code Requirements for Environmental Engineering Concrete Structures and Commentary

Serviceability requirements include liquid-tightness or gas-tightness. With any one of the tank types covered under this report, the General configuration rectangular or circular floor may be a membrane-type slab, a raft foundation, or a Wall-base joint type fixed, hinged, or flexible structural slab supported on piles. In anchored, flexible-base, circular tanks Type 2.

The duration of sloshing can be For all tanks, 20 to 40 s for earthquakes of magnitude 6. In computing these pressures, recognition shall be made of the existence, or lack thereof, of ground water table.

Criteria for liquid-tightness testing may be found in The period of oscillation of the sloshing depends upon the ratio of fluid depth to tank diameter and is usually several seconds. Early Jack Moll William C.

Select the factor Rw specified for the class of structure being investigated Table 4 d. The impulsive pres- pressure, EBP [Fig. Failure to provide a means for shear transfer around the cir- cumference may result in sliding of the wall.

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Determine the seismic coefficient Z from the seismic zone map, Fig.

The horizontal distribution of the dynamic pressure across the tank diameter D may be assumed as follows: The forces Pi and Pc act independently and simultaneously on the tank. This document provides directions to the designer of liquid- containing concrete structures for computing seismic forces that are to be applied ai the particular structure.

If uplift develops on the heel side, then anchor cables must be provided. The overturning moment exerted by h cosh [ 3.

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Dynamic lateral forces 1. International Concrete Abstracts Portal. Appears on pages s: Thus it cannot present background details or suggestions for carrying out its requirements or intent.

For a tank with a height-to-diameter ratio of 1: Exposures include concentrated chemicals, alternate wetting and drying, and freezing and xci of saturated concrete. This approach offers at least two ad- mic design is not adequately covered by the leading vantages: The sloshing increases and H cosh 3.

For tanks with avi overhangs, the concrete lip can be designed to withstand the earthquake force.

The maximum reaction force will be given by: Remember me on this computer. Walls parallel to the direction of the earthquake force shall be loaded in their plane dimension Sci by: Wi moves with the tank walls as they respond to the ground shaking the 9.

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Alternatively, the wall may be located in a preformed slot in the ring beam footing. Superimposed on these lateral unbalanced forces shall be the axisymmetric lateral hydrodynamic force resulting from the hydrodynamic pressure phy acting on the tank wall. D mm of soft clay characterized by a shear wave 2.

The duration of the fluctuations is 10 to 15 s for 0. Skip to main content.

The design of the wall-footing interface should take the radial shear into account. Equations and are adapted from Reference Rectangular tanks Type 1. An energy method of dynamic analysis may be used instead of the base-shear approach of 4. Such structures are used for conveying, storing, or treating liquid, wastewater, or other materials, such as solid waste.

The site factor shall be established from properly substantiated geo- technical data. Walls perpendicular to the earthquake force and in the trailing half of the tank shall be loaded perpendicular to their plane dimension B by: Chemical attack; coatings; concrete durability; concrete finishing fresh concrete ; concrete slabs, crack width, and spacing; cracking fracturing ; environmental engineering; inspection; joints junctions ; joint sealers; liquid; patching; permeability.