Reinforced Concrete Energy Dissipation Braced Frame Structure Damping Performance Research

Adding a certain proportion of concrete oblique support in frame structure is referred to reinforced concrete supporting frame structure. It belongs to the ductility and aseismic architecture with the multichannel fortification. This kind of structure system adds concrete inclined support, which leads to improve the resistance to lateral stiffness of the structure. Under the same earthquake intensity, adding a damper in the concrete inclined support, it destroys comparatively light to be the reinforced concrete beam part of the inclined support frame structure, and its energy dissipation damping performance is better than that of pure inclined support frame structure.Design and establish model using Sap2000 software. Model design is a nine layers of frame structure which is a building of 3 x 5 span, reinforced concrete inclined support frame structure model adding damper, stiffness, mass distributing and rules. In the same seismic intensity, flat form and engineering conditions, a total of six models are set up, by adjusting the support section size and the brace bar diameter size, then respectively static elastoplastic analysis to them. After calculation and analysis, achieve the Pushover curve of each model, then respectively calculate the displacement angle interlayer of performance points, plastic hinge distribution index to judge the energy dissipation and vibration damping performance of structure under severe earthquake. Through the energy dissipation damping performance of structure under severe earthquake, a comprehensive contrast is to carry on the design. It shows that the reinforced concrete inclined support frame structure adding damper is better than pure reinforced concrete inclined support frame structure in comprehensive performance. With increasing the herringbone braced section size and steel bar diameter, its seismic performance improves. After adding damper, the energy dissipation damping performance is obviously better when the damper damping coefficient increases.