Download or read book Dynamic Analysis of Three dimensional Frames written by Roger Edwin Scholl and published by . This book was released on 1969 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: The response of three-dimensional frames subjected to an arbitrary dynamic force is studied. The method of mode superposition is used to obtain the frame response solution. Two different modeling systems are used to idealize the frame. These are the "discrete mass system" and the "continuous mass system." For an example frame configuration, the eigenvalues and eigenvectors for four different discrete mass models are investigated. These four models represent varying degrees of discrete mass modeling sophistication for the frame. In addition, the eigenvalues are investigated by considering a continuous mass model of the example frame. The time-history response for the discrete mass model is determined using both a numerical procedure with a digital computer, and by using an analog computer. Listings of the digital computer programs are provided. The analog computer circuitry used in the solution is also given.

Download or read book Structural Dynamics written by Mario Paz and published by Springer Science & Business Media. This book was released on 1997-07-31 with total page 852 pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of COSMOS for the analysis and solution of structural dynamics problems is introduced in this new edition. The COSMOS program was selected from among the various professional programs available because it has the capability of solving complex problems in structures, as well as in other engin eering fields such as Heat Transfer, Fluid Flow, and Electromagnetic Phenom ena. COSMOS includes routines for Structural Analysis, Static, or Dynamics with linear or nonlinear behavior (material nonlinearity or large displacements), and can be used most efficiently in the microcomputer. The larger version of COSMOS has the capacity for the analysis of structures modeled up to 64,000 nodes. This fourth edition uses an introductory version that has a capability limited to 50 nodes or 50 elements. This version is included in the supplement, STRUCTURAL DYNAMICS USING COSMOS 1. The sets of educational programs in Structural Dynamics and Earthquake Engineering that accompanied the third edition have now been extended and updated. These sets include programs to determine the response in the time or frequency domain using the FFf (Fast Fourier Transform) of structures modeled as a single oscillator. Also included is a program to determine the response of an inelastic system with elastoplastic behavior and a program for the development of seismic response spectral charts. A set of seven computer programs is included for modeling structures as two-dimensional and three dimensional frames and trusses.

Download or read book Structural Analysis of Three Dimensional Space Frames with Dynamic Loadings written by Mark A. Hartung and published by . This book was released on 1972 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Three Dimensional Static and Dynamic Analysis of Multi Story Frame and Shear Wall Buildings written by Edward L. Wilson and published by . This book was released on 1977 with total page 85 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Three Dimensional Static and Dynamic Analysis of Structures written by Edward L. Wilson and published by . This book was released on 1998 with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nonpri written by Luís Nuno da Costa Resende and published by . This book was released on 1981 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Advanced Analysis for Three Dimensional Semi Rigid Steel Frames subjected to Static and Dynamic Loadings written by Phu-Cuong Nguyen and published by GRIN Verlag. This book was released on 2023-05-26 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: Doctoral Thesis / Dissertation from the year 2014 in the subject Engineering - Civil Engineering, grade: 9, , course: Advanced Steel Structures, language: English, abstract: This dissertation presents three various advanced analysis approaches which can capture accurately and efficiently the ultimate strength and behavior of steel framed structures with nonlinear beam-to-column connections subjected to static and dynamic loadings. Three major sources of nonlinearity are considered in the analyses as follows: (1) material nonlinearity; (2) geometric nonlinearity; and (3) connection nonlinearity. Three types of nonlinear beam-column element formulation considering both geometric and material nonlinearities are coded into two nonlinear structural analysis programs: (1) Nonlinear Structural Analysis Program (NSAP) – 2-D plastic-zone finite element; (2) Practical Advanced Analysis Program (PAAP) – 3-D refined plastic-hinge element and 3-D plastic-fiber element. Three types of steel frames analyzed by the proposed program are: (1) rigid frames – beam-to-column connections are fully rigid; (2) linear semi-rigid frames – beam-to-column connections have constant stiffness; and (3) nonlinear semi-rigid frames – beam-to-column connections have continuously variable stiffness. Three types of analysis can be performed are: (1) nonlinear inelastic static analysis; (2) nonlinear elastic and inelastic time-history analysis; and (3) free vibration analysis. Three main resources of damping are taken into account in the proposed programs are: (1) hysteretic damping due to inelastic material; (2) structural viscous damping employing Rayleigh damping; (3) hysteretic damping due to nonlinear beam-to-column connections. Two computer programs are developed: (1) Nonlinear Structural Analysis Program (NSAP) – written in the C++ programming language; (2) Practical Advanced Analysis Program (PAAP) – written in the FORTRAN 77 programming language. They are verified for accuracy and computational efficiency by comparing predicted results with those generated by the commercial finite element analysis packages of ABAQUS and SAP2000, and other results available in the literature. Through several numerical examples, the proposed program (PAAP) proves to be a reliable and efficient tool for daily practice design in lieu of using costly and time-consuming commercial software.

Download or read book Structural Dynamics written by Mario Paz and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 790 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The Fifth Edition of Structural Dynamics: Theory and Computation is the complete and comprehensive text in the field. It presents modern methods of analysis and techniques adaptable to computer programming clearly and easily. The book is ideal as a text for advanced undergraduates or graduate students taking a first course in structural dynamics. It is arranged in such a way that it can be used for a one- or two-semester course, or span the undergraduate and graduate levels. In addition, this text will serve the practicing engineer as a primary reference. The text differs from the standard approach of other presentations in which topics are ordered by their mathematical complexity. This text is organized by the type of structural modeling. The author simplifies the subject by presenting a single degree-of-freedom system in the first chapters, then moves to systems with many degrees-of-freedom in the following chapters. Finally, the text moves to applications of the first chapters and special topics in structural dynamics. New in this Edition: Problems reworked for SAP2000®. Step-by-step examples of how to use SAP2000® for every application of structural dynamics. Inclusion of companion Web site (extras.springer.com/2004) with three learning aids: SAP2000® student version; source code for the author’s educational programs in structural dynamics, so that the results of changed parameters can be seen step-by-step; and the compiler (executable files) for the author’s educational programs. Three earthquake engineering chapters updated to the latest ICC® building codes. Materials rearranged so that theory and dynamic analysis precede applications and special topics, facilitating using the book sequentially. Complete instructions provided to advanced topics as foundation for further study. This text is essential for civil engineering students. Professional civil engineers will find it an ideal reference."

Download or read book Post elastic Dynamic Analysis of Three dimensional Frame Structures written by A. G. Gillies and published by . This book was released on 1979 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Model Analysis of Three Dimensional Space Frames with Dynamic Loadings written by Archie E. Parsley and published by . This book was released on 1973 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Adaptive Nonlinear Dynamic Analysis of Three dimensional Steel Framed Structures with Interactive Computer Graphics written by Said Ibrahim Hilmy and published by . This book was released on 1984 with total page 630 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Three dimensional Inelastic Dynamic Structural Analysis of Frame Systems written by Vassil K. Simeonov and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The first objective of this dissertation is the development of a three-dimensional hysteretic model capable of representing the behavior of typical frame members. A macro-modeling approach is adopted, the essence of which is to define the constitutive relations at a control section directly in terms of stress resultants and strains. The derivation relies on the premise that the underlying material behavior can be represented by a parallel-plasticity model. The connection between the fundamental stress-strain law and the section stress resultant-strain relations is rationalized from that perspective. The model is designed as a constitutive relation with internal variables. The evolution equations are postulated using non-associated flow rule with the ultimate-yield locus of the section serving as a plastic potential function. The latter is represented by an axial force-biaxial moment interaction surface in hysteretic force space. A new parametric equation of a general interaction surface is introduced to provide a versatile tool for modeling triaxial effects in frame members. It is also demonstrated that several popular one- and two-dimensional hysteretic models can be regarded as particular cases of the proposed model. The loading/unloading criteria of the two-dimensional versions are shown inadequate and a new loading/unloading criterion is proposed. The constitutive model is then used to define the behavior at the control sections of a nonlinear beam-column element. The principle of virtual forces is employed to derive the nodal force-displacement relationship embodied by the flexibility matrix. This approach exploits the internal determinancy of frame members under any boundary conditions - a quality allowing exact interpolation of the element force field from the nodal actions. The element is developed in the setting of a stiffness-based incremental solution of the governing equations. The specific contribution is the introduction of a novel aspect in the state determination procedure. The main idea is to merge the equilibrium unbalances at the control sections from the current global iteration with the incremental internal forces in the next one. Another goal of the dissertation is the conceptual design of an algorithm for solving finite-element problems in state space. The key concept is to solve the structure equations of motion and the element constitutive relations simultaneously in time. Specific advances are made toward systematizing the task of defining the state of a general element and postulating its evolution. Guidelines are provided for selection of state variables for various combinations of formulation types and constitutive models. The concepts involved in the creation of a new element are illustrated through the definition of an inelastic frame member model, operating in the setting of the state-space method. The final chapter of this dissertation presents analytical studies of a typical long multi-span highway bridge for spatially varying ground motion of the 1994 Northridge earthquake. The primary objective of the study is to qualify and quantify the effects of the non-synchronous excitation. The numerous cases involved in the study are analyzed using the modeling and analysis tools of the computational platform IDARC-BRIDGE. Based on these results, the relative importance of factors that have been shown to affect the behavior of highway bridges is weighed and the dominant influence on the response is identified.

Download or read book Non Linear Static and Cyclic Analysis of Steel Frames with Semi Rigid Connections written by Siu-Lai Chan and published by Elsevier. This book was released on 2000-05-19 with total page 355 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is devoted to the discussion and studies of simple and efficient numerical procedures for large deflection and elasto-plastic analysis of steel frames under static and dynamic loading. In chapter 1, the basic fundamental behaviour and philosophy for design of structural steel is discussed, emphasising different modes of buckling and the inter-relationship between different types of analysis. In addition to this, different levels of refinement for non-linear analysis are described. An introduction is also given to the well-known P-&dgr; and P-&Dgr; effects. Chapter 2 presents the basic matrix method of analysis and gives several examples of linear analysis of semi-rigid pointed frames. It is evident from this that one must have a good understanding of first-order linear analysis before handling a second-order non-linear analysis. In chapter 3, the linearized bifurcation and second-order large deflection are compared and the detailed procedure for a second-order analysis based on the Newton-Raphson scheme is described. Chapter 4 introduces various solution schemes for tracing of post-buckling equilibrium paths and the Minimum Residual Displacement control method with arc-length load step control is employed for the post-buckling analysis of two and three dimensional structures. Chapter 5 addresses the non-linear behaviour and modelling of semi-rigid connections while several numerical functions for description of moment versus rotation curves of typical connection types are introduced. The scope of the work in chapter 6 covers semi-rigid connections and material yielding to the static analysis of steel frames. Chapter 7 studies the cyclic response of steel frames with semi-rigid joints and elastic material characteristics. In the last chapter the combined effects of semi-rigid connections and plastic hinges on steel frames under time-dependent loads are studied using a simple springs-in-series model. For computational effectiveness and efficiency, the concentrated plastic hinge concept is used throughout these studies.

Download or read book Dynamic Analysis of Nonlinear Elastic Frames written by James K. Iverson and published by . This book was released on 1968 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Analysis of Three Dimensional Frames written by Kantilal M. Kalawadia and published by . This book was released on 1964 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book 3D Dynamic Scene Analysis written by Zhengyou Zhang and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt: he problem of analyzing sequences of images to extract three-dimensional T motion and structure has been at the heart of the research in computer vi sion for many years. It is very important since its success or failure will determine whether or not vision can be used as a sensory process in reactive systems. The considerable research interest in this field has been motivated at least by the following two points: 1. The redundancy of information contained in time-varying images can over come several difficulties encountered in interpreting a single image. 2. There are a lot of important applications including automatic vehicle driv ing, traffic control, aerial surveillance, medical inspection and global model construction. However, there are many new problems which should be solved: how to effi ciently process the abundant information contained in time-varying images, how to model the change between images, how to model the uncertainty inherently associated with the imaging system and how to solve inverse problems which are generally ill-posed. There are of course many possibilities for attacking these problems and many more remain to be explored. We discuss a few of them in this book based on work carried out during the last five years in the Computer Vision and Robotics Group at INRIA (Institut National de Recherche en Informatique et en Automatique).

Download or read book Simplified Dynamic Analysis of High Rise Buildings written by Hideo Takabatake and published by Springer. This book was released on 2019-04-30 with total page 277 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a simple analytical method based on the extended rod theory that allows the earthquake resistance of high-rise buildings to be easily and accurately evaluated at the preliminary design stage. It also includes practical software for applying the extended rod theory to the dynamic analysis of actual buildings and structures. High-rise buildings in large cities, built on soft ground consisting of sedimentary rock, tend to have low natural frequency. If ground motion due to an earthquake occurs at distant hypocenters, the vibration wave can be propagated through several sedimentary layers and act on skyscrapers as a long-period ground motion, potentially producing a resonance phenomenon that can cause severe damage. Accordingly, there is a pressing need to gauge the earthquake resistance of existing skyscrapers and to improve their seismic performance. This book was written by authors who have extensive experience in tall-building seismic design in Japan. The software included enables readers to perform dynamic calculations of skyscrapers’ resistance to vibrations. As such, it offers a valuable resource for practitioners and engineers, as well as students of civil engineering.