Abstract：
For expand space, a hotel conference room need to be cut a column and expanding span. A frame beam become into one cross 10.2m by two crosses 4.2 m+6 m, internal forces increase significantly. Based on calculation and analysis, determined that to reconstruction and reinforce it by method of section-steel bonded. Describes the design method and reinforcement process and focus of construction. Engineering ｐractice has proved that demolish column by method of section-steel bonded, safe and reliable, low investment, fast and interference small, the effect was very good.
