Heads up: There are no amended sections in this chapter.
Live load reductions shall be permitted in accordance with the general building code or, in the absence of a general building code, in accordance with ASCE/SEI 7.
Required strength U shall be at least equal to the effects of factored loads in Table 5.3.1, with exceptions and additions in 5.3.3 through 5.3.12.
|Load combination||Equation||Primary load|
|U = 1.4D||(5.3.1a)||D|
|U = 1.2D + 1.6L + 0.5(Lr or S or R)||(5.3.1b)||L|
|U = 1.2D + 1.6(Lr or S or R) + (1.0L or 0.5W)||(5.3.1c)||Lr or S or R|
|U = 1.2D + 1.0W + 1.0L + 0.5(Lr or S or R)||(5.3.1d)||W|
|U = 1.2D + 1.0E + 1.0L + 0.2S||(5.3.1e)||E|
|U = 0.9D + 1.0W||(5.3.1f)||W|
|U = 0.9D + 1.0E||(5.3.1g)||E|
The structural effects of forces due to restraint of volume change and differential settlement T shall be considered in combination with other loads if the effects of T can adversely affect structural safety or performance. The load factor for T shall be established considering the uncertainty associated with the likely magnitude of T, the probability that the maximum effect of T will occur simultaneously with other applied loads, and the potential adverse consequences if the effect of T is greater than assumed. The load factor on T shall not have a value less than 1.0.
If fluid load F is present, it shall be included in the load combination equations of 5.3.1 in accordance with (a), (b), (c) or (d):
If lateral earth pressure H is present, it shall be included in the load combination equations of 5.3.1 in accordance with (a), (b), or (c):
(c) If the effect of H is not permanent but, when present, counteracts the primary load effect, H shall not be included.