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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Remember me on this computer. Exposures include concentrated chemicals, alternate wetting and drying, and freezing and thawing of saturated concrete. Afi locations where the soil properties are not known in suffi- cient detail to determine the soil profile, Type C shall be used.

Walls parallel to the direction of the earthquake force shall be analyzed as shear walls subjected to the in- plane 35001 computed in 5. Doyle Bryant Mather John F. The shears along the bottom and side joints, and the top joint in case of a 350-10 covered tank, shall correspond to the slab reactions. Skip to main content. Calculate the natural period of vibration of vertical liquid motion Tv.

Calculate the bending and overturning moments [Eq. In general, the wall-footing interface should have reinforce- ment designed to transmit these shears through the joint. Select the factor Rw specified for the class of structure being investigated Table 4 d.

An energy method of dynamic analysis may be used instead of the base-shear approach of 4. The design of the wall-footing interface should take the radial shear into account.

The chapter and section numbering of the code are followed throughout the commentary. The site factor shall be established from properly substantiated geo- technical data. avi

/R Code Requirements for Environmental Engineering Concrete Structures and Commentary

Acj include ancillary structures for dams, spillways, and channels. Proper design, materials, and construction of environmental engineering concrete structures are required to produce serviceable concrete that is dense, durable, nearly impermeable, resistant to chemicals, with limited deflections and cracking.

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Note that the damping of the sloshing water is small, approximately 0. Factor Z Table 4 a represents the maximum effective peak ground acceleration for the site, while C is a period- dependent spectral-amplification factor.

Alternatively, the wall may be located in a preformed slot in the ring beam footing. Chemical attack; coatings; concrete durability; concrete finishing fresh concrete ; concrete slabs, crack width, and spacing; cracking fracturing ; environmental 350-011 inspection; joints junctions ; joint sealers; liquid; patching; permeability Date: The overturning moment exerted by h cosh [ 3.

Thus it cannot present background details or suggestions for carrying out its requirements or intent. Select an importance factor I from Table 4 c and a soil profile coefficient S from Table 4 b. Calculate the overall bending stresses due to the overturning moments from Step Because the impulsive and convective 4. For a tank with a height-to-diameter ratio of 1: The horizontal distribution of the dynamic pressure across the tank diameter D may be assumed axi follows: Rectangular tanks Type 1.

The amount of freeboard required for design will vary. Prachand Paul Zoltanetzky Robert E. Walls perpendicular to the earthquake force and in the trailing half of the tank shall be loaded perpendicular to their plane dimension B by: W tanh [ 0.

Criteria for liquid-tightness testing may be found in 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.

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.

The quality aco testing of materials used in the construction are covered by reference to the appropriate standard specifications.

The sloshing increases and H cosh 3. Where dowels are provided to transfer this shear, the distribution will be the same as shown in Fig. This code presents new material as well as modified portions of the ACI Building Code that are applicable to environmental engineering concrete structures.

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The dynamic properties, including periods of vibration and lateral coefficients, shall be permitted to be deter- mined on the basis of generally acceptable methods of dynamic analysis. Equations and are adapted from Reference S National Bureau of Standards, Monograph, Typically, the distribution of forces and wall reactions in circular tanks will be similar to 35001 shown in Fig. In anchored, flexible-base, circular tanks Type 2. The roof-to-wall joint is subject acii earthquake shear from the horizontal acceleration of the roof.

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350–01 Government Printing Office, Washington, D. Where loss of liquid should be prevented for example, tanks for the storage of toxic liquidsor where overtopping may result in scouring of the foundation materials or cause dam- age to pipes, roof, or both, then one or more of the following measures should be undertaken: D mm of soft clay characterized by a shear wave 2.

Early Jack Moll William C. References to much of the research data referred to in preparing the code are given for those who wish to study certain requirements in greater detail. Dynamic lateral forces 1. 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 construction of environmental engineering concrete structures.

The designer should also consider the effects of seismic forces on compo- nents outside the scope of this document, such as piping, equipment for example, clarifier mechanismsand connect- ing walkways, where vertical or horizontal movements between adjoining structures or surrounding backfill could adversely influence the ability of the structure to function ac.