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TORSIONAL BEHAVIOUR OF HILL SLOPE BUILDINGS: A CASE STUDY ON DIFFERENT PLAN ASPECT RATIOS AND SLOPE ANGLESAuthors: Rahul Suresh Vishwakarma,Pradeep Kumar Ramancharla Conference: 17 th World Conference on Earthquake Engineering (WCEE 2020) Pages: 1-8 Location Japan Date: 2020-09-13 Report no: IIIT/TR/2020/92 AbstractBuildings on hill slopes are highly vulnerable due to its less resistive lateral load capacity. This type of buildings are unsymmetrical and are of in irregular configuration. There are variations in the column height which gives eccentricity to the structure as the center of mass and center of rigidity doesn’t coincide. This irregularity leads to its torsional behavior and gives us the necessity for analyzing these buildings for its base conditions and its behavior by changing its plan configuration. This paper contain the calculation of Twist which is an effective parameter to decide the behavior of the building, Axial forces on the members that can lead to collapse in the structure and about the twist variation with change in the aspect ratio so that we can know the suitability of the configuration of the building. The building on hill slopes does not behave similar to the buildings which are on plane ground. Change in the Aspect ratio means changing the length of the building in ridge direction. Changing the length in valley direction will disturb the load path of gravity load for each and every change in the structure and after some increment of the length in valley direction will fail the structure for its gravity load path. So we can’t play with the length of the building along the valley direction but changing the length along ridge direction does not effect that much to the load path of gravity load and we can obtain a best aspect ratio of the structure for that region. Keywords: Twist, Axial forces, Slope of the ground Full paper: pdf Centre for Earthquake Engineering |
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