Publicación: INCREMENTAL DYNAMIC ANALYSIS OF A FIVE STOREYS CLT BUILDING DESIGNED THROUGH FORCE-BASED METHODS
Fecha
2023
Título de la revista
ISSN de la revista
Título del volumen
Editor
13TH WORLD CONFERENCE ON TIMBER ENGINEERING, WCTE 2023
Resumen
SINCE THE LARGE SEISMIC DEMANDS IN CHILE, THERE IS A HIGH LEVEL OF UNCERTAINTY REGARDING THE SEISMIC SAFETY BEHAVIOR OF TIMBER STRUCTURES. BESIDES, IN THE LAST DECADE, THERE HAS BEEN A WORLDWIDE RISE IN THE CONSTRUCTION OF CROSS-LAMINATED TIMBER (CLT) BUILDINGS, EXPLAINED BY THE EASE OF INDUSTRIALIZATION OF CLT PANELS AND FOR BEING A SUSTAINABLE MATERIAL. HOWEVER, ITS MASSIFICATION IN HIGH EARTHQUAKE-PRONE ZONES IS STILL UNDER DEVELOPMENT. THIS RESEARCH ANALYZES
THE SEISMIC FRAGILITY OF A 5-STORY CLT BUILDING. THE AIM OF THIS RESEARCH IS TO DETERMINE THE SEISMIC SAFETY LEVEL OF A CLT
MIDRISE BUILDING DESIGNED BY CHILEAN FORCE-BASED CODE REGULATIONS BY MEANS OF STATIC NONLINEAR ANALYSIS AND INCREMENTAL
DYNAMIC ANALYSIS. FOR IDA CURVES, A SET OF 540 NONLINEAR TIME-HISTORY ANALYSES WERE PERFORMED USING PARALLEL COMPUTING
TOOLS. THE MAIN RESULTS SHOW THAT FOR THE COLLAPSE OF THE BUILDING TO OCCUR, LARGE PSEUDO-ACCELERATION VALUES NEED TO BE REACHED. BESIDES, THE COLLAPSE MARGIN RATIO (CMR) IS CALCULATED FOR THE TWO PRINCIPAL DIRECTIONS, ACHIEVING VALUES LARGER THAN 3 FOR 50% COLLAPSE PROBABILITY. THESE RESULTS SUGGEST A LARGE MARGIN OF SEISMIC SAFETY OF THE CLT BUILDING DESIGNED IN THIS RESEARCH.
Descripción
Palabras clave
Timber construction, Seismic fragility of CLT mid-rise buildings, Incremental Dynamic Analysis.
