Aseismic Diagnosis for Concrete Building Structures after Man-made Damages

• Main Authors: Pai-mei Liu, 劉白梅
• Other Authors: Mow S．Sheu
• Format: Others
• Language: zh-TW
• Published: 1993
• Online Access: http://ndltd.ncl.edu.tw/handle/69508500492110392245

碩士 === 國立成功大學 === 建築研究所 === 81 === The purpose of this paper is to establish nonlinear aseismic diagnosis programs for reinforced concrete building with shear walls subject to man-made damages such as construction error and fire exposure . Furthermore , this paper tries to get the collapse ground acceleration and failure mechanisms of any R.C. building. These would be good references for strength or retrofitting . In order to assess the collapse ground acceleration for R.C. buildings under earthquake , the non-linear incre- mental spectrum analysis is employed . The ground accelera- tion shakes from zero and increases gradually up to cracking , yielding , plastic hinging and total collapse of the building . During each loading step , member stiffness , damping ratio , P - △ effect and plastic hinges are changed . The maximum relative rotation capacity at each beam-column joint are also checked from step to step to concern the local joint failure and the possible included progressive collapse . The proposed analytical results are compared to two shaking table specimens . The comparison shows reasonable prediction for yield and collapse ground acceleration, yield and collapse base shears , yield and collapse roof deflections . The peak ground acceleration , base shear, tangential period and roof deflection for buildings after man-made damages will be changed . These four parameters are very good indices for damage assessment for earthquake . All the examples in this paper will be diagnosed by using these four indices .