313 Weight of Fixed Service Equipment In determining dead loads for purposes of

313 weight of fixed service equipment in determining

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3.1.3 Weight of Fixed Service Equipment. In determining dead loads for purposes of design, the weight of fixed service equipment, such as plumbing stacks and risers; electrical feeders; and heating, ventilating, and air conditioning systems shall be included. 3.2 SOIL LOADS AND HYDROSTATIC PRESSURE 3.2.1 Lateral Pressures. In the design of structures below grade, provision shall be made for the lateral pressure of adjacent Table 3.2-1 Design Lateral Soil Load Description of Backfill Material Unified Soil Classification Design Lateral Soil Load a psf per foot of depth (kN/m 2 per meter of depth) Well-graded, clean gravels; gravel–sand mixes GW 35 (5.50) b Poorly graded clean gravels, gravel–sand mixes GP 35 (5.50) b Silty gravels, poorly graded gravel–sand mixes GM 35 (5.50) b Clayey gravels, poorly graded gravel-and-clay mixes GC 45 (7.07) b Well-graded, clean sands; gravelly–sand mixes SW 35 (5.50) b Poorly graded clean sands, sand–gravel mixes SP 35 (5.50) b Silty sands, poorly graded sand–silt mixes SM 45 (7.07) b Sand–silt clay mix with plastic fines SM–SC 85 (13.35) c Clayey sands, poorly graded sand–clay mixes SC 85 (13.35) c Inorganic silts and clayey silts ML 85 (13.35) c Mixture of inorganic silt and clay ML–CL 85 (13.35) c Inorganic clays of low to medium plasticity CL 100 (15.71) Organic silts and silt–clays, low plasticity OL d Inorganic clayey silts, elastic silts MH d Inorganic clays of high plasticity CH d Organic clays and silty clays OH d a Design lateral soil loads are given for moist conditions for the specified soils at their optimum densities. Actual field conditions shall govern. Submerged or saturated soil pressures shall include the weight of the buoyant soil plus the hydrostatic loads. b For relatively rigid walls, as when braced by floors, the design lateral soil load shall be increased for sand and gravel type soils to 60 psf (9.43 kN/m 2 ) per foot (meter) of depth. Basement walls extending not more than 8 ft (2.44 m) below grade and supporting light floor systems are not considered as being rela- tively rigid walls. c For relatively rigid walls, as when braced by floors, the design lateral load shall be increased for silt and clay type soils to 100 psf (15.71 kN/m 2 ) per foot (meter) of depth. Basement walls extending not more than 8 ft (2.44 m) below grade and supporting light floor systems are not considered as being relatively rigid walls. d Unsuitable as backfill material. Downloaded from ascelibrary.org by SOUTHERN CALIFORNIA UNIVERSITY on 01/27/14. Copyright ASCE. For personal use only; all rights reserved.
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Downloaded from ascelibrary.org by SOUTHERN CALIFORNIA UNIVERSITY on 01/27/14. Copyright ASCE. For personal use only; all rights reserved.
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Minimum Design Loads for Buildings and Other Structures 11 CHAPTER 4 LIVE LOADS 4.3.2 Provision for Partitions. In office buildings or other buildings where partitions will be erected or rearranged, provi- sion for partition weight shall be made, whether or not partitions are shown on the plans. Partition load shall not be less than 15 psf (0.72 kN/m 2 ).
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