Removable semi -girder trussing in back realizes shaking

The utility model discloses a removable semi -girder trussing in back realizes shaking, it includes a core section of thick bamboo, frame post and semi -girder truss. The semi -girder truss set up in a core section of thick bamboo reaches between the frame post. The semi -girder truss includes energy dissipation roof beam section, upper chord, lower chord and web member. Lower chord parallel arrangement in the below of upper chord. Web member slope set up in the upper chord with between the lower chord. The web member divide into first end and second end, the extension direction of the first end of web member alternately, web member second end with a core section of thick bamboo or the frame support connnection. Energy dissipation roof beam section both ends respectively with the first end of web member is connected. A core section of thick bamboo sets up in the middle of the building. The frame post sets up in the building peripherally. Shake the removable semi -girder trussing in back when the earthquake energy dissipation roof beam section can consume seismic energy, has played the effect of protection web member, just the energy dissipation roof beam duan zhenhou change easily, has reduced the economic loss who brings after the earthquake.