Main problem: fundamentally flawed structural designs

October 30, 2011 by  
Filed under EERI Team Field Blog, Structural

It is clear that the heavy damage is due to structural deficiencies. It is not a matter of poor material quality, which is practically everywhere except, perhaps, in buildings built in the last 2-3 years some of which were also damaged. The area has seen a boom in building construction in the last decade,...


Performance of a strenghtened school building

October 29, 2011 by  
Filed under EERI Team Field Blog, General Information

There is a strengthened school building in Ercis. This is a 4-story RC frame with original and added shear walls. Non-structural damage is moderate. Original frame of the structure have bad quality concrete and workmanship. Original shear walls of the structure along the north-south direction has honeycomb...


Damaged Minarets

October 29, 2011 by  
Filed under EERI Team Field Blog, General Information

There are at least three mosques damaged in Ercis. Collapsed and damaged minarets


October 28th Observations from Van

October 29, 2011 by  
Filed under EERI Team Field Blog, General Information

After getting totally soaked up by a cold rain all day yesterday, we woke up for a sunny day. Due to the scarity of the avaliable vehicles and transportation need of a new dispatch of METU group, we stayed in Van. I have been drifted a way from the group for checking up the structural health of...


Ongoing Strengthening of a Building in Van

October 28, 2011 by  
Filed under EERI Team Field Blog, General Information

This is a building in which seismic strengthening was ongoing before the earthquake. Please see the formwork for new concrete shear wall added at ground level. At the time of the earthquake, those shear walls were not poured yet, but the building still stood the strong 7.2 Mw arthquake in Van. General...


Moderate to Heavily Damaged Social Security Administration Building

October 28, 2011 by  
Filed under EERI Team Field Blog, General Information

General view of the structure Heavily damaged interior column Collapse of interior partition walls made of concrete blocks along the corridor Spalling plaster of the exterior infill walls, and heavily damaged exterior concrete column.


Moderately Damaged School Building in Van

October 28, 2011 by  
Filed under EERI Team Field Blog, General Information

This is a 50 years old school building consisted of two separate blocks with a seismic joint between them. General view of the structure Spalling of plaster on exterior façade of the structure Spalling of plaster along the interior corridor Infill wall damage inside a classroom Diagonal shear cracks...


Damaged Newly-Constructed Building in Ercis – VAN

October 27, 2011 by  
Filed under EERI Team Field Blog, General Information

This building was still under construction when the earthquake hit. All the perimeter columns are damaged at their base, including a short shear wall in transverse direction. General View of the Building Damaged column base Close up view of the short shear wall in transverse direction


Damage in the partitions of a 7-story reinforced concrete building in the city of Van

October 27, 2011 by  
Filed under EERI Team Field Blog, General Information, Structural

  7-story RC frame with a elevated lower story Typically hollow clay tiles are used as partition walls. Double layer partition wall for insulation purposes There are no mechanical connections between the partition walls and walls to the structural frame. A limited survey show no structural damage...