Capacity Assessment of the Titus Tunnel Bridge Using Analytical and Numerical Techniques

Autor:	Sami A. Kilic, Bora Gencturk, Mustafa Erdik, T. R. S. Mullapudi
Rok vydání:	2014
Předmět:	Engineering business.industry Building and Construction Structural engineering Masonry Induced seismicity Span (engineering) Bridge (interpersonal) Finite element method Factor of safety Structural health monitoring Arch Safety Risk Reliability and Quality business Civil and Structural Engineering
Zdroj:	Journal of Performance of Constructed Facilities. 28:349-362
ISSN:	1943-5509 0887-3828
DOI:	10.1061/(asce)cf.1943-5509.0000408
Popis:	A great number of masonry arch bridges are still in service in Europe, the Middle East, and other parts of the world. Assessing the capacityofthesehistoricalstructuresisanimportantproblembothforsafetyandpreservationpurposes.Thispaperaddressestheassessment of theTitusTunnelBridge,asingle-span,Romanstonearchpedestrianbridge(CommonEra70)locatedinAntakya,Turkey,usinganalyticaland numerical techniques. The bridge is located in an active seismic zone and has survived several major earthquakes. Therefore, it is important to understand the Bridge's subtle features that have helped the structure survive for the last two millennia. Furthermore, being a single-span semicircular stone arch, the bridge exemplifies the main construction blocks of several masonry bridges around the world. First, the analytical techniques, i.e., Heyman's geometrical factor of safety and the mechanism method, are used to assess the capacity of the bridge under simple loadingconditionsandtovalidatethe finite-element(FE)models.Then,discreteFEmodelingwithexplicittimeintegrationisusedtoinvestigate the arch behavior under both gravity and earthquake loading conditions. It is observed that the Titus Tunnel Bridge has a significant margin of safety against collapse, which also explains the approximately 2,000-year lifetime of the structure. The results are also used to provide estimates on the maximum expected ground motions in the region using a precarious rocks analogy.DOI:10.1061/(ASCE)CF.1943-5509.0000408. © 2014 American Society of Civil Engineers. Author keywords: Titus Tunnel Bridge; Stone arch bridges; Collapse mechanism; Mechanism method; Discrete finite-element method; Explicit time integration; Contact.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::52074ad714c59757425a56b58da055ac https://doi.org/10.1061/(asce)cf.1943-5509.0000408 Zobrazit plný text záznamu