Damping Characteristic steel-frame reinforced concrete precast beams null for poly floor building

摘要

PURPOSE:To obtain a building with a damping structure by providing steel- framed beam sections not integrated by the fixed length on both end sections of an integrated beam main body wound with reinforced concrete around a continuous lengthy steel-framed core and absorbing the inter-pillar vibration with the elastic plasticity. CONSTITUTION:Four beam main reinforcements 13 are arranged in the lengthy direction on both sides of both the upper and lower flanges 11a and 11b around a lengthy steel frame 11, stirrups 14 are wound on outsides of the beam main reinforcements 13, the upper flange 11a and the upper end of a web 11c are wound with exposed concrete 15 to form a beam main body 16 made of a steel-framed reinforced concrete half-beam. Dynamic connection cutting foam styrols 17 and 17 are stuck to both ends of the web 11c of the lengthy steel frame 11, a release agent 17a is coated on the lower side of the web 11c. No fire protection work is thereby required after the beam is installed, the slab bridging can be completed in a short period.