某办公楼改造为服装车间的加固设计

Strengthening Design for an Office Building Reformed into a Workshop

某 4层砖混结构办公楼需拆除层 2 ,3部分承重墙 ,改造成为大空间的车间。承重墙顶部的圈梁需加固。由于层 4墙体不拆除 ,层 3梁上部荷载较大 ,采用了圈梁侧做托梁、后拆墙的方案。层 3墙拆除后 ,层 2梁上部荷载较小 ,加固可采用临时硬撑支顶 ,先拆墙、在梁底加大截面的方案 ;为支撑托梁 ,对构造柱进行了处理。

A four-storey mansory office building is reformed into a large space workshop by removing the second and third floor bearing wall.The girth on top of the wall is reinforced.While the fourth floor wall is reserved,the load on the third floor is too large to be beared by temporary supports.An attached new beam is added to hold the original girth.After the wall in the third floor is removed,the temporary supports have enough strength to bear the load on the second floor,so the beam on the second floor can be reinforced by enlarging the beam section area.The stiff column is also changed to hold the new beam.