Seismic Response Analysis Of High-strength Lightweight Aggregate Concrete Frame Structure

High-strength lightweight aggregate concrete (HSLC) not only have the characteristicsof structural materials and functional materials, but also have high strength and light weight,thermal insulation performance, energy-saving effect is remarkable, crack effect is obvious,high durability, high fire resistance, and low cost of project, there is a good developmentprospects of green building materials. In recent years, with the vigorous development ofChina’s high-speed railway, high-speed rail station house a large number of construction. Thiskind of energy-saving, environmental protection, high efficiency, green building materialsused in high-speed rail station house structure, technological innovation high-speed railstation house structure, energy saving is important.Currently, the elastic-plastic analysis of seismic design has become an important part ofwhich pushover analysis method with its simple, low computation, practical advantages,much engineering staff concerned.In this thesis, we analyzed the different responses under7degree earthquake betweenHSLC and traditional concrete railway building structure. Studies have shownthat:(1)High-strength lightweight aggregate concrete compared with traditional concrete, dueto the material’s character of light weight, HSCL structure can significantly reduce theproportion of dead loads, reducing the internal forces of structural members, in large spanstructures and large public buildings have greater potential;(2)On the structure and the modalresponse spectrum analysis can be drawn, LC40lightweight concrete structure with a largelevel of traditional concrete structure period compared to the structure of the substratereaction force and member forces compared to traditional concrete substrate reaction forceand member forces small, and displacement ratio between the structural layer betweentraditional concrete structure layer slightly larger displacement, meet the "minor earthquake"fortification requirements;(3)On LC40strength lightweight aggregate concrete structureswere Pushover analysis. By analyzing the level of performance points under differentinterlayer displacement and plastic hinge development process, indicating that the structure tomeet the "strong column weak beam" of seismic design requirements, the ability to withstand earthquakes of different standards, while meeting the rare earthquake under the "noearthquake down "design approach.