Application of Anka anchor bolt in reconstruction project of training building of Provincial Traffic Police Corps

A building area of 18000 MZ, a total of 20 floors (excluding equipment floor), frame shear wall structure, column grid size of 5.8-7.7m. The project was started in December 1997 completed in June 1998. During the decoration construction of the training building, the owner plans to change the original 20th floor International Conference Hall (6.6m high) into a small conference room, piano bar, warehouse, etc. according to the change of service conditions, it is required to add a mezzanine. The height of the lower layer is 3.6m 3.om respectively. 2、 Because the main project of the building has been completed, the design of sandwich structure requires that the new structural load be direct light, can form a new mass center, change the mechanical characteristics of the original main structure, especially can form a new short column on the 20th floor. The steel mesh is used in the second layer, the steel mesh is used as the upper layer, the steel mesh is used as the main supporting beam. For fixing the vertical bearing steel plate with the broken wall column of the original structure, the method of chiseling off the surface layer of the original wall column, welding the steel plate steel plate sleeve repairing the broken wall was used in the past