Large-span large-column distance quasi-ribbed floor type prestressed steel grid roof structure
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The invention relates to a pre-stress steel grid roof cover used in large span, large post rib floor cover, which comprises four-angle taper plate net support (1). Wherein, the support post (3) is mounted with pre-stress spatial tube truss support (2); four-angle plate net support (1) is connected to the truss support (2). The invention can be used in the large span steel grid roof cover whose span is between 80m to 150m and post distance is between 32m to 60m, with low steel consumption and low cost.