Failures in Civil Engineering
Structural, Foundation and Geoenvironmental Case Studies
This special publication consists of a collection of short descriptions of failures case studies in Civil Engineering. The descriptions cover cases in structural, foundation and geoenvironmental...

Hydraulic Design of Spillways
Technical Engineering and Design Guides, as adapted from the U.S. Army Corps of Engineers, No. 12. This manual presents guidance for the hydraulic...

Landslides under Static and Dynamic Conditions
Analysis, Monitoring, and Mitigation
It is important to consider both the geotechnical engineering and the engineering geology implications of static and dynamic behavior of landslides. In studying landslides one must consider...

Waste Containment Facilities
This book presents a comprehensive description of recommended procedures for construction quality assurance (CQA) and control (CQC) for waste containment facilities. Chapter 1 describes...

State of the Art
The structural engineering of San Francisco's new Museum of Modern Art offered many challenges to the engineer. The complexity of the building is both visually exciting and...

Divided We Fall
This article examines the aftermath of a falsework failure during the construction of a Mississippi River bridge in Minnesota. The author reviews the legal issues that arose from the collapse,...

I.P.L. Space Trusses: Structural Performance and Analysis
The utilization of the fast working massively parallel computers in solving intense numerical problems, in the field of structural engineering left disappointed many of practical engineers....

Study of Interaction Between Pneumatic Spherical and Cylindrical Form Shells Subjected to Wind Pressure
In the design of pneumatic membrane structures, analysis of stress and deformations of structures subjected to wind is among the most important requirements. For the purpose of studying...

Application of Virtual Reality to Space Robotics Operations
This paper discusses a Virtual Reality (VR) simulation under development by the Automation and Robotics (A&R) Division at the Johnson Space Center (JSC). Over the past twelve years,...

Goals and Requirements for Scientific Lunar Rovers
The detailed science requirements for future lunar rovers should, of course, be based on achievable science goals and objectives. It is clear that lunar geoscience will benefit by robotic...

A Stewart Platform Lunar Rover
A lunar version of the Robocrane is being developed at the Robot Systems Division of the National Institute of Standards and Technology (NIST) to address the needs of NASA researchers....

The Optimal Selection of Robot Modules for Space Manipulators
Monolithic robot systems are poorly suited to the broad requirements and uncertainties of space automation applications. Designers have considered building many robots, each of which can...

A New Robotic System Concept for Automating Highway Maintenance Operations
The purpose of this paper is to present the Tethered Mobile Robot (TMR) concept, a new robotic system for automating highway maintenance operations. The operational requirements of this...

Bechtel Automated Lift Planning System
This paper describes the Automated Lift Planning System (ALPS) software developed by Bechtel Corporation. The software was developed to assist the construction engineer with planning and...

Dynamic Analysis of a High Speed Transport Model by Using a Piecewise Continuous Timoshenko Beam Model
Conventional treatment of structural dynamic analysis and control is based on the finite element structural model. But such a treatment uses a very large number of elements which is usually...

Using a Small Satellite Bus As a Dedicated Platform for On-Orbit CSI Experiments
Control-Structure Integration (CSI) technology will be needed for the success of many future space missions, however, this technology will not be seriously considered for use by program...

Braced Double Skinned Structure in Lunar Application
A parametric study is designed to evaluate a proposed Braced Double Skinned roof structure utilizing extrapolated theoretical solutions i.e. Navier's solution and Levy's solution. A Finite...

A Conceptual Study of A Solar Power Satellite Using Centrifugal Force
We studied the self deployable Solar Power Satellite (SPS) using centrifugal force in order to explore ways in reducing construction costs. We designed a 340 kW SPS, and studied the unfolding...

Thermoelastic Theory of Cylindrical Sandwich Shells with Piezoelectric Sensors or Actuators
Cylindrical sandwich shells with piezoelectric longitudinal and ring elements bonded to the outer and inner surfaces are considered in this paper. Thermal effects are included in the analysis,...

Modal Interaction in the Response of Laminates
A higher-order shear-deformation theory is used to analyze the interaction of two modes in the response of thick laminated rectangular plates to transverse harmonic loads. The case of...

 

 

 

 

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