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Verification of the structural safety of the facility affected by the Beirut port explosion in order to preserve the safety of people and public safety. The main starting point for the field study was carried out by the Beirut and Tripoli engineering unions, commissioned by the Governor of Beirut, Marwan Abboud, and in coordination with the Beirut municipality, the Lebanese army emergency room and the Directorate General of Antiquities.
The survey was carried out in an area of about three square kilometers, starting from Al-Madawar, Karantina and Al-Mirfa, to the districts of Gemmayzeh and Al-Saifi, passing through Al-Badawi, Mar Mikhael, Al-Rumail, Al-Jeitawi, Al-Hikma and Al-Sarasaqa..
As a result of fieldwork, it was found that of the 2509 buildings surveyed, 323 buildings are at risk of total or partial collapse (12.9 percent), and 254 buildings are subject to separation in their non-structural elements (fall of a balcony or part of the aluminum facade, etc.), that is, a ratio of 10.1 Percentage, and 543 buildings with cracks in some of their components that need to be treated (broken glass, loose doors, etc.)), Or 21.6%, in addition to 1,389 buildings surveyed without damage (55.4%).
The area most affected by the explosion includes 362 buildings of heritage value dating from the 19th century to the 1930s. The explosion affected 92 buildings, which are at risk of collapse and have a high and medium risk (25.4%)) And 270 heritage buildings without physical danger (74.6%). Most of these sandstone-walled buildings were roofed with wooden barracks, brick floors, and al-Baghdadi wooden ceilings lined with ornate stucco..
Architecturally, buildings constructed with reinforced concrete were less damaged than heritage buildings and buildings with glass facades. According to the head of the College of Specialized Urban Planning Engineers, Firas Mortada, the assault affected the buildings facing the port, that is, the line that connects them to the point of explosion, more than the buildings that are geographically close..
Mortada Sharh told the Lebanese daily Al-Akhbar on Monday, the methodology to work on the survey initiated by the Lebanese Union of Engineers (which includes the Engineers Unions of Beirut and Tripoli), through the Beirut Union’s Public Security Committee and with the support of scientific associations and committees.
From the first moments of the blast, engineers, he said, went to the ground led by their captain, Gad Tabet, to inspect the cracked buildings and help residents of the destroyed neighborhoods. After that, around 1,000 engineers expressed their willingness to volunteer, and some 350 structural and architectural engineers, electrical and mechanical engineers from the Beirut and Tripoli unions were assigned to participate in the survey. An electronic center was created that organized a virtual digital map within an application, through which the electronic survey was conducted in parallel with the written survey in the paper documents used in the surveys, which helped to produce daily and weekly reports about business and approve its results with official references as it happens with most agencies interested in statistics after a disaster. Port.
The area surveyed was also divided into 97 positions, and specialized commissions were formed to accompany the work of the commission from the commission and outside it and from the Council of Lawyers in the experiences in the field of analysis and monitoring of information and suggesting the steps necessary for support and opinion in the case of buildings after detection and timely decision-making to serve them. The concerned authorities, especially the Beirut governorate, the Beirut municipality and the army emergency room, were informed of all construction cases that required intervention and posed a threat to public safety. Mortada pointed out that “we have made our data on buildings available to some international institutions that have expressed the desire to restore or house the affected population, and among these organizations are: the United Nations Organization for Human Settlements and the Alto United Nations Commissioner for Refugees.
It is noteworthy what Mortada said about forcing the Union Council to register all restoration permits, so that the permit is signed by an engineer responsible to his union and to the public authorities, provided that this registration is free except for the fees of the engineer..
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