PURPOSE: A support structure of an underground parking lot of a building is provided to enable a driver to easily drive by minimization of the number of posts in an underground parking lot of a building and prevent vehicle accidents since interference with the support posts does not occur.;CONSTITUTION: A support structure(100) of an underground parking lot of a building comprises a plurality of support columns(110), a longitudinal support beam(120), a horizontal support beam(130) and a second horizontal support beam(140). The support columns are arranged lengthwise and widthwise. The longitudinal support beam connects the support columns on the ceiling of the underground parking lot along the lengthwise support column(110L). The horizontal support beam connects the support columns on the ceiling of the underground parking lot along the widthwise support column(110T).;COPYRIGHT KIPO 2012
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