Seismic Performance Analysis of Vertically Irregular Structures with Diagrid

Autor: Neeraja Nair, Merry James
Rok vydání: 2019
Předmět:
Zdroj: Lecture Notes in Civil Engineering ISBN: 9783030263645
DOI: 10.1007/978-3-030-26365-2_55
Popis: A large number of vertically irregular buildings exist in modern urban infrastructures, and so the area of vertically irregular type of building is now having a lot of interest. When such buildings are located in a high seismic zone, the structural engineer’s role becomes more challenging and consideration of lateral load is very much important. Recently the diagrid structural system is widely used as lateral load resisting system due to its structural efficiency and aesthetic potential provided by the unique geometric configuration of the system. This paper presents a brief study about diagrids on a geometrically irregular structure. For this particular study a building with base dimension 36 m × 36 m and 129.6 m height is taken and vertical geometric irregularity is given to the base structure. Each storey height is 3.6 m. Diagrid with uniform angle throughout the height is provided as lateral load resisting system. Time history analysis is done using ETABS 2016. Seismic performance of geometrically irregular building provided with diagrids is studied by varying diagrid angles. The results in terms of maximum storey displacement, maximum storey drift, time period, structural weights and base shear are compared.
Databáze: OpenAIRE