【摘要】 某大酒店会议室为扩大使用面积,需截柱扩跨,一根框架梁由4.2m+6m两跨变为10.2m一跨,结构内力大幅度增加。经计算分析确定采用粘接型钢法进行改造加固。工程实践证明,应用粘型钢技术进行拔柱改造,安全可靠,投资省,速度快,干扰小,效果很好。更多还原

【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.更多还原