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A Generalized Three Invariants Cap Model and its Numerical Implementation to Study Soil-Foundation Interaction
This paper presents a modified cap model that is capable of characterizing cyclic stress-strain behavior of soils and describing variation of shear strength along various stress paths...

Properties in Sensitivity Coefficients of Framed Structures
This paper presents a special relationship among sensitivity coefficients of static response, natural frequency and mode. The relationship is that the sum of sensitivity coefficients in...

Computer Methods Used on Seismic Retrofit Projects
Over a relatively short period of about twenty years, personal computers (PC's) have replaced slide rules in most engineering calculations. PC's are now staple equipment in every engineering...

Modeling and Analysis of Shafts and Tunnels for the SSC
A brief overview of the Superconducting Super Collider Project (SSC) is presented followed by a discussion of the 3D modeling and finite element analysis of tunnels and shafts. The sequential...

Using Finite Element Analysis to Derive the Coefficient of Subgrade Reaction
The coefficient subgrade reaction is a concept used to generate spring constants which are commonly used to model the foundation subgrade in the analysis of mat foundations. This paper...

Developing an Integrated Database Structure for the Lifecycle of Precast Concrete Projects
This paper presents an integrated database structure for the storage and retrieval of information during the planning, design, manufacturing and construction of a structural precast concrete...

An Entity Relationship Model of Construction Project Data
The purpose of this paper is to demonstrate the results of applying techniques of information systems development to an application area that is diverse and complex but which is exploring...

Qualitative Formulation of Load Paths Through a Functional Description of Structures
The past few decades have seen major advances in computer tools to analyze complex structures and loadings. For the most part, these programs have focused on two areas - A, programs for...

A Constraint-Based Composites Design Advisor
Most engineering problems, because they involve mathematical relations (constraints) on real valued quantities (objects), can be reduced to constraint networks. The authors speculate that...

A Knowledge-Based System for the Damage Assessment of Timber Trusses
A knowledge-based system for the maintenance of over two hundred timber Warren truss buildings is being developed at the Royal Military College of Canada by the Knowledge-Based Expert...

Quality Control and Constructability of Slabs on Grade With Expert Systems
Constructability and quality control problems associated with the construction of slabs on grade are many. They vary from problems associated with cracking, scaling, dusting and spalling,...

Accurate and Efficient Element for Analysis of Concrete Structures
Reinforcement details in concrete structures are inherently complex. Therefore, the treatment of reinforcements is one of the most influential factors in the accuracy and efficiency of...

Study of a Computer System for Evaluation of Bearing Wall Stresses in Structural Planning ? Reasoning by Neural Network
This report proposes a reasoning system for bearing shear wall stresses in the ultimate state by using geometrical data of buildings and shear walls at the initial stage of aseismic structural...

Analysis of Sequential Route Choice Under ATIS
An experiment to collect sequential route choice data under the influence of an Advanced Traveller Information System (ATIS) was performed using a PC-based interactive simulation. The...

Building Object-Oriented Systems for Diagnostic Problems in Civil Engineering
In recent years, rehabilitation and renovation of existing buildings and roads have grown to occupy a significant share of all civil engineering projects. Proper timing of rehabilitative...

Reliability-Based Assessment of Navigation Structures
In 1989, the Director of Civil Works, U.S. Army Corps of Engineers (HQUSACE), requested regional assessments of the future modernization needs of Corps Divisions with significant inland...

Design and Construction Support with Object-Oriented Database Kernel Systems
The heterogeneity of tools and their data models in civil engineering is a well known problem. Next generation database technology seeks to offer solutions for the integration of the design...

Real-Time Position Measurement Integrated with CAD-CAE and Related Data Structure Issues
The Civil Engineering Research Foundation (CERF), Bechtel Corp. (Bechtel), Jacobus Technology, Inc (Jacobus), and Spatial Positioning Systems,Inc. (SPSi) have formed the Consortium for...

An Application of Neural Networks to Hysteretic Modeling of Steel Structures
This paper describes an application of the neural networks to realistic hysteretic modeling. The neural networks learn from sample data (training cases) and make predictions for new cases....

Computer Assisted Conceptual Structural Design of Steel Buildings
The design quality of a building is mostly determined during the conceptual design stage. Computers, however, have not been used effectively to handle the conceptual design of building...

 

 

 

 

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