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本文介绍两跨１８ｍ预应力Ｖ形折板屋盖的一根中柱被意外撞断破坏的事故分析、加固方案和加固效果。
This paper describes the accident analysis, reinforcement scheme and reinforcement effect of accidental breakage of a center pillar of a span of 18m prestressed V-shaped folded plate roof.