Report for March 2016 Damage Inspection of Ruaha Warehouse in Mtwara, Region |
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Author(s): |
Asinta Manyele, Johnson Malisa |
ISSN: |
2349-6002 |
Cite This Article: |
Report for March 2016 Damage Inspection of Ruaha Warehouse in Mtwara, Region, International Journal of Innovative Research in Technology(www.ijirt.org) ,ISSN: 2349-6002 ,Volume 6 ,Issue 5 ,Page(s):24-28 ,September 2019 ,Available :IJIRT148659_PAPER.pdf |
Keywords: |
Earthquake loading, warehouse storage system, earthquake induced vibrations, building damages |
Abstract |
Whenever the functions of old building structures changes during its service life, or whenever the building has been under actions of high loads (winds or earthquakes), there is a need to undertake building investigation to determine the state of the structure and its load capacity. Common symptoms that indicate a damaged structure are developments of wide cracks and large deflections of building structural elements. Following the occurrence of repeated earthquakes and with Ruaha warehouse owner request, the authors inspected Ruaha Warehouse for structural and non-structural damages via visual inspection supplemented with site testing, as well as seismic analysis. From the investigation, building structural damages that varied from minor wall cracks to complete separation of floor slab and walls were identified on building elements. The non-structural damages included the sliding of bagged goods and spill-off into the floor for some pallets stacked chemical bags. The severe damages were found on floor areas where heavier chemical bags were stacked on top of each other and in areas where loaded pallet racks were found leaning into the wall or where marks for previously loaded pallets racks were found on the wall. Although the occurrence of medium earthquake of magnitude 4.2 – 4.6 with induced accelerations of about 0.012g at the site were confirmed in the area for the period under study, the observed building damages were too high to be caused by the earthquake alone. The weakness in the methods of stacking the heavier chemical bags was considered as the other possible cause of significant damages during the earthquakes. General conclusions drawn from the observed damages, labelled the warehouse as unsafe and recommended its closure for major repairs accompanied with improvement of warehouse good storage approaches as the area was found to be prone to medium earthquake induced ground vibrations. |
Article Details |
Unique Paper ID: 148659 Publication Volume & Issue: Volume 6, Issue 5 Page(s): 24 - 28 |
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