Structural Design Optimization of Nonlinear Response With Adina
Procedures for sensitivity analysis and optimization of nonlinear structural systems with the computer program ADINA are described. Formulation of the structural optimization problem and...
Design Improvements Using Finite Elements and Optimizing with Approximate Functions
A design optimization module has been added to the finite element program ANSYS, designed to aid the engineer in reaching an improved or optimum design. The numerical technique employed...
Study of Structural Behavior with Computer Simulation
The application of computer simulated testings of structural elements in the civil engineering undergraduate education is described. With a computer simulation a structural component may...
Animated Response of Dynamic Systems
Understanding how a simple structural system responds to a dynamically applied load is a difficult concept for most students to grasp. The fundamental mathematical theory of this behavior...
Analysis and Design of Prestressed Concrete Spun Poles
A microcomputer package for the analysis and design of prestressed concrete spun poles is described. The package, named PCPAD, consists of six programs each having a specific analysis...
Creep Modelling for Masonry under Plane Strain
A computational procedure based on the principle of superposition to estimate creep strains in composite masonry walls is developed and presented in this paper. This development is based...
Attached Scientific Computers in Structural Analysis
The design and analysis process is explored in terms of its requirements for user decision-making and interaction. This is presented as a three-phase procedure: (1) the engineer developing...
Equation Solving on a Parallel Computer
The application of computers to the analysis of large structural systems is examined. The analysis procedure is presented as three distinct phases: (1) element formulation, (2) equation...
Scenic Squeeze
Constructing a four-lane dual highway through the 12 miles of Colorado's Glenwood Canyon involves several engineering innovations: cantilevered roadways, unusual retaining...
Effective Pedestrian Safety Programs
Pedestrian fatalities account for 16 percent of all highway-related deaths and about 129,000 pedestrians are involved in accidents each year. Analyses of pedestrian accident data and determining...
Evaluating the Effectiveness of Highway Safety Improvements
The need exists for better information relative to the effectiveness of various safety treatments and actions. Reliable measures of effectiveness are required for determining the most...
Roadside Design in the Future
Since the first roadways were built, highway designers have constantly been striving to ensure that motorists can travel to their destinations on safe highways. However, their efforts...
Shoulder Rumble Strips at Narrow Bridges
The highways in the United States have thousands of minimum design narrow bridges. Replacement of these bridges with current state of the art designs is not cost effective nor feasible...
End Treatments for Deep Beam Highway Guardrail
End treatments on highway guardrail serve two functions: (1) to make the end safe in case of an impact there, and (2) to provide anchorage in case of an impact adjacent to the end. Two...
What to Do When a Failure Occurs
When a major building problem involving structural failure occurs, action should begin immediately to determine the damage or failure and detect the underlying problem. This paper will...
Quality Assurance/Quality Control: Alternative Approaches to Reduce Failures
Efforts to achieve quality on construction projects usually center around code-compliant design, thorough specifications, and careful inspection. The alarming increase in both the frequency...
Mechanics of Crack Propagation in Stiff Clays
Many stiff clays forming part of natural slopes and earth dams exist in the fissured state. When these cracks are subjected to gravity induced normal and shear stresses they may propagate....
A Laboratory Investigation of the Undrained Small Strain Behavior of London Clay
Three different total stress-paths were followed during shearing of the anisotropic consolidated (CAU) tests: compression, extension and a stress-path simulating an element under a plate...
Shear Mobilization on Laterally Loaded Shafts
From the results of a pressure cell instrumented rigid shaft embedded in stiff clay and subjected to horizontal static loading the side shear mobilization rate, and its contribution to...
Seismic Acceleration Maps for Oregon
To evaluate the seismic hazard for the Corps dams in the Portland District, operating basis earthquakes (OBE) and maximum credible earthquakes (MCE) were established for seismic zones...
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