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Technical Evaluations Necessary for Determining Site Suitability for a High-Level Waste Repository
Congress, under the Nuclear Waste Policy Act of 1982, as amended, has charged the Department of Energy with the responsibility for safely and permanently disposing of high-level radioactive...

Factors Controlling Strong Ground Motion and Their Associated Uncertainties
Of special interest in strong ground motion modeling is a quantification of the degree of influence specific physical parameters have on the computed motions. Associated with the model...

ASTM C666 (A) Freeze-Thaw Durability of Air-Entrained Wet- and Dry-Mix Shotcrete
In order to assess the freeze-thaw durability of shotcrete, six samples of dry-mix shotcrete and one sample of wet-mix shotcrete were mixed outdoors at Hydro-Quebec's research institute...

Earthquake Resistant Design and Construction of Reinforced Concrete Buildings. The Practice in Mexico After 1985
The evolution of the design and construction practice of reinforced concrete buildings in Mexico is presented in terms of materials, structural systems, member design and reinforcement...

CenterCore Strengthening System for Seismic Hazard Reduction of Unreinforced Masonry Bearing Wall Buildings
The CenterCore technique of reinforcing unreinforced masonry walls was developed with the help of a National Science Foundation grant in 1984. The CenterCore strengthening system consists...

Fire Retardant Treated Wood
The paper explains how FRTW chemicals react with combustible gases. It describes the two types into which FRTW is divided. Misconceptions about FRTW are also addressed....

Investigation of a Failed Concrete Joist System
The failure and distress of concrete joists contained in the promenade roof deck of a one-story, college, lecture hall building initiated an extensive investigation to determine the cause...

The Effective Use of Fire Ratings
Any consideration of components for construction must take into account the performance of those components when they are exposed to fire. Codes, standards, and fire ratings provide some...

Vortex Shedding Induced Fatigue Fracture of Mast Tower
The fracture of a pair of 60m high circular steel masts is investigated. The design criteria and fabrication practices are reviewed. The cause of failure is related to the fatigued condition...

Dynamic In-Plane Racking Tests of Curtain Wall Glass Components
This paper is concerned with the seismic performance of 'architectural.' or 'non-structural' building elements such as glass elements in curtain wall systems. A pilot study was undertaken...

Axial Capacity of Concrete Infilled Steel Box Column with Biaxial Bending
The objective of this study was to investigate the feasibility of using the Bresler reciprocal load method to calculate the axial capacity of a concrete infilled steel box column subjected...

Testing of Concrete Permeability for Durability Evaluation
Field and laboratory permeability tests are being performed to evaluate the durability of concrete in Florida. These tests are part of an extensive research program to develop a durability...

Nondestructive Evaluation of Timber
Nondestructive evaluation of materials, the science of identifying the physical and mechanical properties of materials without altering their end-use capabilities, is valuable in defining...

Design Property Values of Wood-Based Materials in LRFD Format
The development of a U.S. Load & Resistance Factored Design (LRFD) specification and supporting documents for engineered wood construction is nearing completion. The two key components...

Simplified Reliability Analysis of Transmission Structures Including Both Geometric and Material Nonlinearities
Generally, in nonlinear structural systems, the g-functions of the components cannot be explicitly expressed in terms of the basic random variables. In using the design point method to...

Fatigue Reliability of Structural Systems Under Earthquake Loads
The authors have develop a methodology for calculating the expected low-cycle fatigue damage in structural components subjected to brief nonstationary random loads. The methodology is...

The Effect of Nonlinear Drag PSD on Fatigue of Compliant Offshore Structures
Structural fatigue damage induced by random ocean wave loading on a compliant type of offshore structure is considered. The nonlinear wave force is modeled by the Morison equation and...

Fatigue of Floating Offshore Structures: Modelling Uncertainty in Hydrodynamics and Fatigue Properties
For floating offshore structures such as tension leg platforms (TLPs), one form of loading uncertainty is due to nonlinear diffraction forces, which can excite lightly damped vertical...

Time Variant Reliability Under Environmental Loads
Time variant reliability with deteriorating resistance under a stochastic load process is considered. An outcrossing formulation for fatigue degradation is presented, and a simple and...

Durability and Ductility of Advanced Composites
In recent years, several fiber reinforced composites have been successfully used as prestressing materials for demonstration highway structures. Since these materials are relatively brittle...

 

 

 

 

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