At the end of the course, participants are expected to. Earthquake resistant buildings is being brought out by camtech directorate. Earthquake resistant expansion joint erj bridge expansion. Haseeb 1, a, xinhailu 1, aneesa bibi 1, jahan zeb khan 2, iftikhar ahmad 3, rizwan malik 4, b 1college of public administration, huazhong university of science and technology. Earthquake resistant bridge design competition goal and objective the goal of this project is to use basic engineering concepts to design and build a bridge that can resist the forces induced during an earthquake. Proposals for new oneway shear equations for the 318. There are many cases of damage of bridges in the past earthquakes all over the world. Many of the structural problems related with earthquake induced inelastic metamorphosis may be decreased by limiting such deformations to special ingredients. There are seismic weak points in cable supported bridges which are likely to become source of damages when the structure experiences an earthquake.
New bridge design improves earthquake resistance, reduces damage and speeds construction june 30, 2014 this graphic illustrates a new design for the framework of columns and beams that support bridges, called bents, to improve performance for better resistance to earthquakes, less damage and faster onsite construction. A real bridge with an expensive isolation scheme consisting of lead rubber bearings and dampers was utilized as benchmark bm 0 for the study. Plastic hinging and durability there is a marked difference in seismic design aspects of bridges and buildings. Earthquakeproof bridge being built in san francisco once renovations are completed, the bay bridge will be the largest selfanchored suspension bridge in the world. Instead of designing earthquake resistant bridges with monolithic joints, it is proposed to use discontinuous connections in this thesis. Design of bridges utilizing a novel earthquake resistant. Seattles newest bridge is built to do much more than withstand an earthquake its built with columns designed to move with the ground and flex back into t. Seminar on seismic design and retrofit of bridges likely to transfer and concentrate damage in other elements that had not been retrofit, these earlier studies did not address any of the important issues related to the seismic resistance of the viaducts in the longitudinal direction. They act, as an important link in surface transportation network and failure of bridges during a seismic event will seriously hamper the relief and rehabilitation work. Nov 15, 2016 seattles newest bridge is built to do much more than withstand an earthquake its built with columns designed to move with the ground and flex back into t. A stateoftheart text on earthquakeproof design and retrofit of bridges seismic design and retrofit of bridges fills the urgent need for a comprehensive and. Cost analyses and benefit studies for earthquakeresistant nehrp. The objective is to build a small bridge from balsa wood that can withstand severe ground shaking recorded during actual earthquakes. Article pdf available in bulletin of earthquake engineering august 2018 with 540 reads.
The vertical shaking in particular really worries me. The majority of existing reinforced concrete bridges, although. Iwagami4 abstract in this study, the stress and deformation of a superstructure and abutment under lateral movement is. Seismic design of railway bridges to be conducted at iit kanpur during 26 may, 20111 course objectives the aim of the course is to provide the participants an overview on seismic design procedures for bridges with special emphasis on railway bridges. Icbo, and sbcci agreed to merge into a single organization called the inter. Few engineering projects have the scope, costs or risks involved in building a new bridge. How can large bridges, with spans on the order of 1 km, be made resistant to earthquakes. Im no expert on quakes, but there are at least two kinds of shaking. Construction of earthquake resistant buildings and infrastructure implementing seismic design and building code in northern pakistan 2005 earthquake affected area m.
Pdf seismic performance of bridges during the 2016 central italy. For the second year in a row, smithsonian magazine put together its list of the 20 best small towns across america worth visiting. Smart materials improve earthquakeresistant bridge design. Closely spaced horizontal hoops, restraining the main vertical reinforcement bars of the substructure, are effectively used for this purpose. A new earthquake resistant abutment as means to reduce the seismic demand of a railway bridge conference paper pdf available september 2012 with 117 reads how we measure reads. However, many of the bridges that failed were designed and built before the adoption of modern codes specifying earthquake resistant design. Each large magnitude earthquake located around urban area created devastated destruction of our infrastructures, including the transportation system, and claimed vast human fatalities. Its overall goal is to make such structures more resistant to earthquakes. Earthquake engineering is an interdisciplinary branch of engineering that designs and analyzes structures, such as buildings and bridges, with earthquakes in mind. The segments may rock at their interface during a severe earthquake and, if rocking rotation is too large, the structure may collapse. Principles of earthquake engineering of bridges part 2. How these ideas can be used in economical earthquake resistant design of bridges is the subject of this paper. A new earthquake resistant abutment as means to reduce the seismic demand of a railway bridge.
Various statistical methods used to combine modal contributions in the multimode method of. A new earthquake resistant abutment with high capacity wing walls was designed and its efficiency in enhancing bridges earthquake resistance was analytically investigated and assessed. For example, the akashi kaikyo bridge in japan is currently the longest span bridge in the world and is in a severe seismic zone. Plastic hinging and durability there is a marked difference in seismic design aspects. Pdf earthquakeresistant structures design, assessment and. Earthquake engineering ottawa, ontario, canada 2629 june 2007 earthquake resistant design of bridge considering lateral movement m. New bridge design improves earthquake resistance, reduces damage and speeds construction. Earthquakes are inevitable events in our living environment. New fhwa seismic hazard mitigation studies for highway bridges. Download free sample and get upto 65% off on mrprental. Public roads seismic protection of bridges, marchapril 1999. Calculate demands and capacities design analysis global models to obtain member force and structure displacement demands for routine projects, models are typically elastic eq simulation is typically with response spectra. Like last year, it enlisted the help of geographic information company esri to search for towns with populations less than 15,000 with a strong cultural bent, i.
The ductilitydesign philosophy is the mainframe of modern seismicdesign guidelines in the united states and most countries abroad. Cable supported bridges earthquakes performance and. Earthquake resistant bridges, and joint aciasce committees 423, prestressed concrete, and 445, shear and torsion. Earthquakeproof bridge being built in san francisco seeker.
In 2005, congress passed the safe, accountable, flexible, efficient transportation equity act. By reinforcing bars with a metal alloy made from a mix. There are longspan bridges built in earthquake zones. How can large bridges be made resistant to earthquakes. Analysis and assessment of a seismically isolated bridge wit press. Jul 01, 2014 researchers have developed a new design for the framework of columns and beams that support bridges, called bents, to improve performance for better resistance to earthquakes, less damage and. Mitoulis, stergios, titirla, magdalini and tegps, ioannis 2014 design of bridges utilizing a novel earthquake resistant abutment with high capacity wing walls engineering structures, 66. Business engineering and manufacturing government bridge construction laws, regulations and rules bridges earthquake effects bridges structures earthquake damage earthquake engineering earthquake resistant design. Recent major earthquakes in california and japan have again demonstrated their potential for damage to highway bridges and loss of life. For the most part, the earthquakeresistant bridge consists of the same materials many bridges are made of. Improving the earthquake performance of bridges using seismic.
But earthquakesafe buildings are expensivemany poorer countries dont have the financial resources to build them. In most cases this resistance can be achieved by following simple, inexpensive principles of good building construction prac. Nov 09, 2011 san franciscos huge new quakeproof bridge. The guidelines are the recommendations of a team of nationally recognized experts, which includes consulting engineers, academicians, state highway engineers, and federal agency representatives from throughout the united states. Improving the earthquake performance of bridges using seismic isolation ian buckle professor, university of nevada reno. The new bridge across san francisco bay, the largest of its kind ever built, must be able to sway to withstand a. Resilient designs should be aimed at, for limiting damage and.
The home shown on the right was destroyed when the hillside beneath it gave way following the 1994 magnitude 6. Seismic reliability analysis of cable stayed bridges against. Original seismic design scdot version of divia aashto draft 23 of 2% in 50 yr 1996 usgs maps used pga of 0. Pdf a new earthquake resistant abutment as means to. Buy earthquake resistant design of structures notes ebook by pdf online from vtu elearning. Icbo, and sbcci agreed to merge into a single organization called the inter national. Nov 18, 2011 earthquake proof bridge being built in san francisco once renovations are completed, the bay bridge will be the largest selfanchored suspension bridge in the world. During the past 2 decades, bridge engineers have gained a better understanding of the behavior of structures during an earthquake. A good bridge has to endure a lot from mother nature. Earthquakeresistant bridge competition purdue engineering. Pdf a new earthquake resistant abutment as means to reduce.
Aug 17, 2012 smart materials improve earthquake resistant bridge design. Under earthquake loading, engineers allow for damage in column hinges to dissipate energy and prevent total bridge collapse. This graphic illustrates a new design for the framework of columns and beams that support bridges, called bents, to improve performance for better resistance to earthquakes, less damage and faster onsite construction. He is also a fellow in the asce structural engineering institute and asce. Introduction in many structural applications, the ultimate purpose of using stochastic analysis is to determine the reliability of a structure, which has been designed to withstand the random excitations. This document contains guidelines for the seismic retrofitting of highway bridges. International aspects of the history of earthquake engineering. Earthquakeresistant bridge thanks to new flexible materials. Design of earthquake resistant bridges using rocking columns. Principles of earthquake engineering for bridges dameron intro contd ultimate goal. An expansion joint or movement joint is an assembly designed to safely absorb the heatinduced expansion and contraction of construction materials, to absorb vibration, to hold parts together, or to allow movement due to ground settlement or earthquakes. Download earthquake resistant design of structures notes.
Seismic reliability analysis of cable stayed bridges against first passage failure rehan ahmad khan aligarh muslim university india 1. Our approach was to combine traditional reconnaissance activities of. Dec 16, 2016 a good bridge has to endure a lot from mother nature. New bridge design improves earthquake resistance, reduces.
The new bridge across san francisco bay, the largest of its kind ever built, must be able to sway to withstand a big earthquake and one is expected. In earthquakeprone parts of the globe, thats an especially tall task. Bridges are a main component of the transportation infrastructure as we know it. Construction of earthquake resistant buildings and. These ingredients must have a big valence to absorb energy, and. Tata cara perencanaan ketahanan gempa untuk jembatan jalan raya. Cable supported bridges perform better during earthquakes compared to other types of bridges. Bridges are a main component of the transportation infrastructure as we know it today. Youre going to build structures that can survive an earthquake.