This paper presents analysis of seismic shear design of twentystory rc building designed in accordance with en 19981. Seismic analysis of structures i earthquakes plate. Seismic behavior of slender coupling beams constructed with highperformance fiberreinforced concrete by monthian setkit a dissertation submitted in partial fulfillment of the requirements for the degree of doctor of philosophy civil engineering in the university of michigan 2012 doctoral committee. Nptel civil engineering seismic analysis of structures. Electromagnetic or fluid dampers may be used to dampen the motion of the system. According to en19981 1 linear analysis of structures in earthquake should be performed using a design. The modeling technique, analysis, and conclusions apply equally well for other seismic resisting systems such as braced frames and moment frames. Kiyoshi muto, was professor of structural engineering at tokyo university until his retirement a few years ago. Seismic analysis of structures i free download as powerpoint presentation. Developed for classroom use, the book can also be used for advanced undergraduate students planning for a career or further study in the subject area. Comparison between nonlinear dynamic and static seismic.
The analysis of seismic data structure and oil and gas. Mar 16, 2010 while numerous books have been written on earthquakes, earthquake resistance design, and seismic analysis and design of structures, none have been tailored for advanced students and practitioners, and those who would like to have most of the important aspects of seismic analysis in one place. The most commonly utilized approach in dynamic analysis of underground structures is to neglect the inertial forces of the substructures since these forces are relatively insignificant contrary to the case of surface structures. While numerous books have been written on earthquakes, earthquakeresistance design, and seismic analysis and design of structures,none have been tailored. Nevertheless, some underground structures have experienced significant damage in recent large earthquakes, including the 1995 kobe, japan earthquake, the 1999 chichi, taiwan earthquake and the 1999 kocaeli, turkey earthquake. Aseismic design analysis of buildings muto, kiyoshi on. Modal analysis and linear dynamic analysis were performed for the combined existing and upgrade structures of all three types using the exact modelling and two simplified models in order to study the possibility of simplification of the earthquake analysis and different impacts of the upgrade structures on the existing building. While numerous books have been written on earthquakes, earthquake resistance design, and seismic analysis and design of structures, none have been tailored for advanced students and practitioners, and those who would like to have most of the important aspects of. Design guidance on eurocode 8 for practicing engineers. Seismic analysis of structures civil engineering community. The reliability analysis requires repetitive structural analysis until getting convergent reliability index. The above fem rectangular tank model is numerically analyzed by means of a full transient linear analysis.
Dattadepartment of civil engineering, iit delhiresponse spectrum method of analysis the first step is the dynamic analysis while, thesecond step is a static analysis. A large earthquake would not only cause loss of human lives but can also damage lot of other pertinent infrastructure. Performance and seismic design of underground structures 11 are smaller than those recorded far from the tunnel and at the same time the shear modulus is much higher in the soil mass above the tunnel. These structures correspond to a 4 story confined masonry building in santiago, a 383 m long bridge in vina del mar, and an elevated section of the santiago metrotrain. Seismic design and analysis of underground structures. Building materials and structures 59 2016 3 325 5 fig. The campus lies just east of the san andreas tectonic fault which runs down the west coast of america, through mexico and into the gulf of california so is prone to seismic activity. Pdf the approaches to seismic analysis of buildings. As one of the first books to present such a comprehensive treatment of the topic, seismic analysis of structures is ideal for postgraduates and researchers in earthquake engineering, structural dynamics, and geotechnical earthquake engineering. The motor that rotates the drum at a constant speed is the timer. The concept of robustness of structures is firstly introduced in this paper. In order to reduce the potential loss of serviceability, it is essential to. Dynamic reliability analysis of offshore wind turbine support.
The characteristic of free vibration of grid shell structures with respect to geometric parameter is studied in the chapter. Ductility levels low, medium and high dcl, dcm and dch 3. Seismic analysis of prefabricated structures using etabs. Hooka, birger schmidtb, john ichiang yaoa adepartment of ci il and en ironmental engineering, uni ersity of illinois at urbanachampaign,205 n. This report presents a summary of the current state of seismic analysis and design for underground structures. Metro underground tunnels are strategic elements in transportation and utility networks in any metropolitan city and their importance makes their vulnerability to earthquakes a very sensitive issue. In the discussion of the pseudo3d method that follows the seismic resisting elements are assumed, for the purpose of discussion, to be shear walls. Seismic design and analysis of underground structure. Our study shows that the numerical seismic structure is closely related to oil and gasbearing reservoir, so it is very useful for a geologist or a geophysicist to precisely interpret the oilbearing layers from.
The drum, pen, and chart paper constitute the recorder. Datta while numerous books have been written on earthquakes, earthquake resistance design, and seismic analysis and design of structures, none have been tailored for advanced students and practitioners, and those who would like to have most of the important aspects of seismic analysis in one place. Developed for classroom use, the book can also be used for advanced undergraduate students planning. Method b nominal curvature is mainly suitable for isolated members. Seismic analysis of liquid storage tanks 6 soilstructure interaction.
It is based on calculation of nominal stiffness and moment magnification factor. Oct, 2012 whil e numerous books have been written on earthquakes, earthquake resistance design, and seismic analysis and design of structures, none have been tailored for advanced students and practitioners, and those who would like to have most of the important aspects of seismic analysis in one place. John and zahrah 1987, which appeared in tunneling underground space technol. In this paper, a new concept called numerical structure of seismic data is introduced and the difference between numerical structure and numerical value of seismic data is explained. Kop seismic analysis of structures av t k datta pa. Aseismic design analysis of buildings, kiyoshi muto, maruzen. In the dynamic analysis approach, a dynamic soil structure interaction is conducted using numerical analysis tools such as finite element or finite difference methods. Seismic analysis of delhi metro underground tunnels. Download free sample and get upto 48% off on mrprental. Seismic analysis is a subset of structural analysis and is the calculation of the response of a building or nonbuilding structure to earthquakes. Nptel provides elearning through online web and video courses various streams.
Datta while numerous books have been written on earthquakes, earthquake resistance design, and seismic. The method uses a nonlinear spectrum in the format accelerationdisplacement. Aug 31, 2016 metro underground tunnels are strategic elements in transportation and utility networks in any metropolitan city and their importance makes their vulnerability to earthquakes a very sensitive issue. Dattadepartment of civil engineering, iitpower spectral density function power spectral density function psdf of groundmotion is a popular seismic input for probabilisticseismic analysis of structures. The letter n states that it is a nonlinear analysis and the number 2 states that two mathematical models are applied fajfar 2000. Geological survey openfile report 03307 september 15, 2003 revised january 30, 2004. He has special expertise in seismic resistant design and the modeling of structures for nonlinear analysis. For this analysis, uncoupled ductile wall system is selected as structural system of building. The governing equations of motion can be expressed in matrix form as chopra 1996 1 with m, and being the mass, damping and stiffness matrices of the structure. With this book, readers will gain proficiencies in the following. However, today for most of the structures that are expected to be exposed to seismic actions a linear analysis based on a response spectrum is used. Mathews a enue, mc250, urbana, il 61801, usa bparsons brinckerhoff, san francisco, ca, usa abstract. Design assessment of cbfx the ntc08 design criteria show a first critical issue in the ambiguity of the design procedure in the use of linear dynamic analysis results. The numerical analysis of the transverse seismic response of tunnels is an important issue in the design and safety evaluation of tunnel structures, where the spatial variation of earthquake.
And importance with enough robustness for seismic structures in preventing collapse of the structures under strong intensity earthquake attack. This study, is an adaptation and extension of well. The first two steps do not have approximations,while the third step has some approximations. While numerous books have been written on earthquakes, earthquake resistance design, and seismic analysis and design of structures, none have been tailored for advanced students and practitioners, and those who would like to have most of the important aspects of seismic analysis in one place.
Studiohuerta creates antiseismic structure at mexicos. Buy basics of structural dynamics and aseismic design by damodarasamy, s. Introduction of robustness for seismic structures building structures, 2008, 386. Geological investigations with seismological data revealed that earth primarily consists of four distinct layers namely. Quantification of seismic potential failure modes in concrete. Seismic analysis of structures by tk dutta, civil department, iit delhi, new delhi. As a result, a static analysis not a pseudostatic is.
It is part of the process of structural design, earthquake engineering or structural assessment and retrofit see structural engineering in regions where earthquakes are prevalent. To those familiar with the indian seismic code of is. The pendulum mass, string, magnet, and support together constitute 20 seismic analysis of structures the sensor. As a result, response spectrum analysis iscalled an approximate analysis. Seismic design and analysis of underground structures youssef m. Seismic analysis of structures t k datta bok 9780470824610. Assessment of the design provisions for steel concentric x.
Preliminary seismic analysis of structure is carried out using modal response spectrum analysis. The part describing timber structures is in chapter 8, on pages 158164. This report is a synthesis of the current state of knowledge in the area of seismic design and analysis for underground structures. The chapter concludes with a description of the model of the 5story rc kajima building and the derivation of the simple stick model for the following reliability and optimization. Antiseismic analysis of doublelayer grid shell structures. Whil e numerous books have been written on earthquakes, earthquake resistance design, and seismic analysis and design of structures, none have been tailored for advanced students and practitioners, and those who would like to have most of the important aspects of seismic analysis in one place. Datta indian institute of technology delhi, india, 2010. Seismic analysis of structures by tk dutta, civil department. The chapter discusses the geometrical optimum design and the antiseismic analysis of doublelayer grid shell structures. The chapter discusses the geometrical optimum design and the anti seismic analysis of doublelayer grid shell structures. Thus, unlike most common above ground structures, underground structures response to the imposed displacements from the surrounding soil is not dominated by inertia effects. Comparative analysis of highrise reinforced concrete.
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