KBES Applications to the Selection and Design of Retaining Structures
Knowledge-based expert systems (KBES) are computer programs, based on artificial intelligence (AI) techniques, designed to reach the level of performance of a human expert in some specialized...
Simplified Uplift Analysis of Unanchored Cylindrical Tanks
Seismic tank damage has been reported in almost every major earthquake in the past, sometimes with serious environmental ramifications, thus raising concerns about the safety of these...
Development of a Nonlinear Stochastic FEM and its Application
A basic formulation is developed for the nonlinear stochastic finite element method. It is based on the perturbation method and retains its advantage, namely that a nonlinear finite element...
Random Vibrations of Geometrically Nonlinear Finite Element Plates and Shells
A finite element formulation combined with stochastic linearization and normal mode methods are developed for the study of geometrically nonlinear random vibration characteristics of plate...
Dynamic Stability of Cable Domes
The cable domes designed by David Geiger for the gymnastics and fencing arenas for the Olympics at Seoul, Korea, and for the stadium at St. Petersburg, Florida, are geometrically non-linear...
Dynamics of Composite Tubes
A displacement-based stiffness method is used to study the characteristics of dispersive wave propagation in laminated composite cylindrical tubes. It is assumed that the tube is composed...
Toronto Skydome Retractable Roof Stadium?The Roof Concept and Design
The Toronto SkyDome is a first of its kind sports stadium with a retractable roof which results in, essentially, a fully open air stadium with the roof fully retracted. This unique roof,...
The Fabrication and Erection of the Minneapolis Convention Center
A new convention center is part of the City of Minneapolis' successful plan to maintain an economically strong downtown core. It is the latest addition to a list of civic...
Buckling Design of Vierendeel Reticular Shells
Double layer reticular shell structures carry very little transverse shear, thus, it may be appropriate to substitute the inter-layer diagonal members with 'space'...
Trends in Development of Steel Space Structures in Japan
Trends in recent development of steel spatial structures in Japan are reviewed. Starting from reviewing early development after the World War II, structural systems such as pyramidal roof,...
Optimized Wall Thickness of Shells of Revolution
The aim of this paper was to develop a concept for the design of shells of revolution with different Gaussian curvature using a simplified finite element buckling analysis. A cooling tower...
Manipulation of Shell and Fabric Structure Form
Fabric structures and concrete shells are readily compared because of their curving shapes and the apparent structural derivation of their forms. Every fabric structure includes compression...
Pure Building
This paper outlines the need for building integration in the design of fabric structures by examining the different necessary components and how they fit together. It provides examples...
Major Advances in Finite Element Model Technology
The evolution of finite elements is traced from the viewpoint of finite element shape functions and element-related techniques. Particular emphasis is placed on the isoparametric element,...
Modeling of Plate and Shell Structures with
Finite element models for the analysis of plates and shells, based on the concept of hp-extension are presented. A methodology for the control and analysis of the error of the finite element...
Plates and Shells with Crack-Like Flaws
The formulation of new hierarchial finite elements for the analysis of laminated plates and shells in the presence of flaws are discussed. The performance of the elements is evaluated...
Design and Construction of A 1/6 Scale, LWR Reinforced Concrete Containment
This paper summarizes the closely coordinated engineering and construction planning associated with the design and construction of a reinforced concrete containment model. Designed at...
An Overview of the Round-Robin Analysis of the 1:6-Scale Reinforced Concrete Containment Model
The results of nonlinear structural analyses of a 1:6-scale reinforced concrete model, which were independently conducted by ten different organizations, are briefly described and compared...
Why Bifurcation: A Study of a Reticulated Dome
Numerical results for a hexagonal lattice dome subjected to uniform gravity loading are presented. We demonstrate that a perfect nonlinear bifurcation analysis plays a crucial role in...
Bullwinkle
The 1989 Outstanding Civil Engineering Achievement is an offshore oil production platform named Bullwinkle, a structure in the Gulf of Mexico that is taller than the Sears Tower, shaped...
Return to search