By ACI Committee 376
This code presents minimal necessities for layout and development of bolstered concrete and prestressed concrete constructions for the garage and containment of refrigerated liquefied gases (RLG) with carrier temperatures among +40 and –325°F. the rules indexed herein are appropriate to concrete foundations of double-steel tanks topic to the approval of the landlord.
Read or Download ACI 376-11 - Code Requirements for Design and Construction of Concrete Structures for the Containment of Refrigerated Liquefied Gases and Commentary PDF
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Extra info for ACI 376-11 - Code Requirements for Design and Construction of Concrete Structures for the Containment of Refrigerated Liquefied Gases and Commentary
Nevertheless, many properties of moist concrete, such as strength, stiffness, permeability, and moisture migration, can be enhanced at low temperatures. Generally these should not be used in design except where listed. The industry standard is to neglect these enhancements because: a) the concrete response at room temperature typically governs design; and b) it is conservative to neglect these enhancements because moisture content is highly variable and can change with such factors as age and environment.
2 Bridging capability of the liner is dependent on the loading strain rate and temperature. During an OBE event, the vapor barrier can experience elongation strain rates induced by crack-opening velocities. The vapor barrier should remain functional after an OBE event. 012 in. under normal operation conditions. Ultimate strength design shall be used for transient conditions, such as over pressure or seismic loading. 1 If applicable, performance under loadings due to hazards such as blast or other pressure-wave loading, impact, and fire shall be specified as a part of the risk/hazard assessment.
2. 1 Wind load effects may apply to either the primary or secondary container, depending on which is constructed first or constructed in parallel. Shielding of the primary (inner) container by the secondary (outer) container may be considered. 6 should be used per ACI 350, Eq. (9-4) and (9-6). 1(a). 2. 2 Other environmental load effects (for example, solar radiation, snow, and rain), may apply to either the primary or secondary container, depending on which is constructed first or if the containers are constructed in Requirements for Concrete Structures for Containment of Refrigerated Liquefied Gases (ACI 376-11)45 Code Commentary parallel.