Karayolları genel müdürlüğü duyurular

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Karayolları genel müdürlüğü duyurular

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OSHA worked closely with the National Transportation Safety Board NTSB and local officials, inspecting the remnants of the fallen bridge, and interviewing contractors to determine construction activities preceding the collapse.

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Karayolları genel müdürlüğü duyurular

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Despite these admissions and the knowledge that the cracks were growing in size, EOR stated more than once that the cracks did not present any safety concerns. Functional cookies help to perform certain functionalities like sharing the content of the website on social media platforms, collect feedbacks, and other third-party features. The magnitude of the cracks warranted that SW 8th Street be immediately closed, and the concrete truss be shored and supported at multiple intermediate locations to reduce the loads in the north diagonal and the node until final evaluations were done and remedial measures implemented. Read more. Others Others. EOR should have known that the truss was a non-redundant structure and if one diagonal member failed, the entire bridge could collapse. It does not store any personal data. Analytical cookies are used to understand how visitors interact with the website. As a result of the investigation, OES concludes that:. During the first week of investigation, OSHA maintained a hour surveillance at the incident site. These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc. Close Privacy Overview This website uses cookies to improve your experience while you navigate through the website. An adjoining span of concrete truss was to be constructed next over the canal to make a continuous bridge of feet. Functional Functional.

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OSHA conducted numerous interviews, reviewed pertinent construction documents and structural computations performed by the structural engineer of record EOR , examined the failed pieces, conducted its own structural analysis, and viewed hundreds of photographs of the bridge taken before and after the collapse. Necessary cookies are absolutely essential for the website to function properly. Advertisement Advertisement. Performance cookies are used to understand and analyze the key performance indexes of the website which helps in delivering a better user experience for the visitors. Functional Functional. Advertisement cookies are used to provide visitors with relevant ads and marketing campaigns. It does not store any personal data. Given the nature and extent of the cracking and the non-redundancy of the bridge design, necessary safety precautions should have included closing the roadway below the bridge and immediately providing shoring to the bridge at suitable locations until a complete evaluation was done. The cracks on the bridge occurred due to deficient structural design. The bridge at the present stage of construction consisted of a single concrete truss spanning approximately feet and weighing approximately tons. Others Others. Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. At the time of collapse, the post-tensioning bars were being re-tensioned at the specific instructions of the EOR. The incident was extensively covered by live television and print media. Networking Engineering Services, Inc.