The effect of earthquake on architecture geometry with non-parallel system irregularity configuration

• Published in: IOP conference series. Earth and environmental science 2017-12, Vol.99 (1), p.12004
• Main Authors: Teddy, Livian, Hardiman, Gagoek, Nuroji, Tudjono, Sri
• Format: Article
• Language: English
• Subjects: Architectural design; Architecture; Buildings; Casualties; Collapse; Computer programs; Configuration management; Construction; Design; earthquake; Earthquake damage; Earthquakes; Experimental methods; Geographical distribution; Geographical locations; Geometry; non-parallel system irregularity configuration; Seismic activity; Software; Structural members; Triangles; Vertical forces
• ISSN: 1755-1307; 1755-1315
• DOI: 10.1088/1755-1315/99/1/012004

Indonesia is an area prone to earthquake that may cause casualties and damage to buildings. The fatalities or the injured are not largely caused by the earthquake, but by building collapse. The collapse of the building is resulted from the building behaviour against the earthquake, and it depends on many factors, such as architectural design, geometry configuration of structural elements in horizontal and vertical plans, earthquake zone, geographical location (distance to earthquake center), soil type, material quality, and construction quality. One of the geometry configurations that may lead to the collapse of the building is irregular configuration of non-parallel system. In accordance with FEMA-451B, irregular configuration in non-parallel system is defined to have existed if the vertical lateral force-retaining elements are neither parallel nor symmetric with main orthogonal axes of the earthquake-retaining axis system. Such configuration may lead to torque, diagonal translation and local damage to buildings. It does not mean that non-parallel irregular configuration should not be formed on architectural design; however the designer must know the consequence of earthquake behaviour against buildings with irregular configuration of non-parallel system. The present research has the objective to identify earthquake behaviour in architectural geometry with irregular configuration of non-parallel system. The present research was quantitative with simulation experimental method. It consisted of 5 models, where architectural data and model structure data were inputted and analyzed using the software SAP2000 in order to find out its performance, and ETAB2015 to determine the eccentricity occurred. The output of the software analysis was tabulated, graphed, compared and analyzed with relevant theories. For areas of strong earthquake zones, avoid designing buildings which wholly form irregular configuration of non-parallel system. If it is inevitable to design a building with building parts containing irregular configuration of non-parallel system, make it more rigid by forming a triangle module, and use the formula.A good collaboration is needed between architects and structural experts in creating earthquake architecture.