Abdullah Dilsiz

Ankara Yildirim Beyazit University · Civil Engineering

In the year 1999, two devastating earthquakes (Mw 7.4 Kocaeli earthquake in August and Mw 7.2 Düzce earthquake in November) occurred in Northwest Türkiye. These two earthquakes led to a very large number of casualties and building collapses. When the 1999 earthquakes occurred, most of the structures in the earthquake-impacted region were not design...

An Mw 7.8 earthquake occurred at a depth of 17.9 km and with epicenter coordinates 37.174°N 37.032°E near the city of Nurdağı in the Gaziantep province of Türkiye at about 4:17 AM local time on February 6, 2023. As a result of this sequence of earthquakes and aftershocks, around 28,500 buildings partially or completely collapsed, while another 66,0...

Integrated Disaster Management is a plan for various interventions for unfavorable situations that occur before/after disasters. To ensure the implementation of successful disaster management, management plans have to be implemented and supported by laws for permanent solutions. Türkiye, as one of those disaster prone countries, particularly for ea...

This repository captures some of the images and damage conditions identified by the StEER VAST while scanning social media and other online sources after the Mw 6.1 Duzce, Turkey Earthquake. The examples included in these slides augment what is presented in the joint PVRR report for this event (DesignSafe Project PRJ-3800). None of the data in this...

An earthquake occurred in Duzce, Turkey on Nov. 23, 2022 with magnitude of 6.1 and a depth of 10.0 km. The region has been struck by several destructive earthquakes in the past decades. The vast majority of the buildings in the region affected by the earthquake, including government and school buildings, have been either retrofitted or rebuilt afte...

The energy dissipation devices, with their capabilities of seismic demand reduction, are effective and widely used innovative structural solutions for the seismic protection of buildings. Viscous Wall Dampers (VWD) are also encouraging for new design opportunities of high-rise buildings such as reinforced concrete (RC) special moment resisting fram...

In dynamic analysis of buildings under earthquake loads, reinforced concrete floor slabs are commonly modelled as rigid diaphragm with the assumption of having infinite in-plane stiffness to reduce computation time. The rigid diaphragm assumption ensures the floors behave as rigid bodies and the story shear and torsional moments are distributed to...

Viscous wall dampers (VWDs) are one of the most effective energy dissipation devices for the seismic performance enhancement of buildings. The number of VWDs as well as their positions in the building directly affects the seismic performance. In this study, two of the metaheuristic algorithms were employed for the optimal placement of VWDs in a rei...

Turkish Building Seismic Code (TBSC), which was published in 2018 and became effective in 2019 prescribes a two-stage loading method for designing of a building with a rigid basement. In the first loading stage, the rigid basement is modeled as a massless structure and only mass of the superstructure is considered in the modal response spectrum ana...

The objectives of this PVRR are: 1) to provide details of the 30 October Mw 7.0 Aegean Sea earthquake, 2) to describe local codes and building practices, 3) to compare the recorded ground shaking with the values used for design, 4) to summarize the preliminary reports of damage to buildings and other infrastructure, including the disruption to the...

Aleppo, the biggest city of Syria, whose historical center is a world heritage site, has been suffering a savage war caused a huge destruction of its monuments for eight years. Many monuments, forming the urban structure of the old city, were destroyed either directly by actions of war or indirectly by the effects of ground shaking induced by explo...

Energy dissipation devices, including viscous wall dampers (VWDs), are effective for enhancing the seismic performance of buildings. Use of VWDs can provide new design opportunities and expand the use of favorable structural systems such as reinforced concrete (RC) special moment resisting frames (SMRF) for taller buildings. The objective of this p...

This study investigates the integration of the early warning systems in the educational process, not only at schools but in social life as well, with a focus on earthquakes and floods; since these two types of hazards are among the most frequent and destructive hazards in Turkey. However, the main focus of the study is finding the most appropriate...

Energy dissipation systems, e.g. viscous linear and wall dampers, are effective solutions for enhancing the seismic performance of buildings through reducing the dynamic and seismic demands. These systems are particularly beneficial for high-rise buildings for controlling accelerations and motion comfort under wind loading as well. For high-rise bu...

The debate about postwar reconstruction has been ongoing during the last six years of the ongoing Syrian war. The increasing volume of destruction in different big cities has created a need for new ideas and innovative building solutions. Many studies have tried to suggest solutions comparing other countries ruined by wars such as post-WWII case st...