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Design of Monosymmetric Sections in Flexure
Monosymmetric members are generally I-shaped, symmetrical about the plane of the web, and characteristically have a larger compression flange than tension flange. Examples are crane girders...

Inelastic Behavior of Noncompact Steel Bridge Girders
This paper highlights the results from one of several finite element studies of the inelastic moment-rotation behavior of continuous-span non-compact bridge girders at interior-pier locations....

Interaction Between Beam and Steel Connections
The overall objective of the investigation is to study the behavior of a particular steel connection type, flush end plate steel connections, subjected to shear, axial forces, and possibly...

System Factors in LRFD Format: A Multidimensional Judgment Call
A Load & Resistant Factor Design Specification for wood buildings is being completed. The Specification contains several revisions from the traditional 'repetitive member' factor...

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...

Modal Failure Probability and System Performance
It is pointed out that the modal failure probability, i.e., the probability that a structure fails in a particular mode, cannot be uniquely defined under the time-invariant framework....

Causal Probabilistic Networks in Assessing the Vulnerability of Existing Buildings
A probabilistic assessment of the 'state of health' of the structure is pursued on the basis of pieces of evidence collected by inspection and by querying, in case, historical data bases....

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...

Nonlinear Analysis of RC Beams Using High Performance FRC Matrices
The results of a nonlinear analysis model of reinforced concrete beams using a high performance fiber reinforced cement based matrix, particularly SIFCON (Slurry Infiltrated Fiber Concrete)...

Analysis and Design of SFRC Structural Elements
This paper presents and validates practical methods for flexural, shear and torsional analysis and design of fibrous reinforced concrete structural elements. The effects of both fiber...

In-Situ Determination of the Compressive Stress-Strain Relationship of Multi-Wythe Brick Masonry
In-situ stress-strain relationships of existing multi-wythe brick masonry have been determined by introducing flatjacks into sawcuts made in the exterior wythe of the multi-wythe masonry....

A New Theory of Built-Up Columns
In laced, battened and other built up columns the shear stiffness of the web can have a significant effect on the overall buckling load. At the present time, such columns are analyzed...

Dynamic Response of Variable Height Retaining Walls
A full-scale dynamic test was conducted on a 140 ft long reinforced concrete retaining wall. The observed resonant configurations were similar to those of a cantilever plate and showed...

Analysis of the Seismic Records of a Suspension Bridge
A well-instrumented suspension bridge in Los Angeles, was shaken by the October 1, 1987 Whittier earthquake (M_L = 5.9). This study addresses the...

Ambient Vibration Survey: Sunshine Skyway Bridge
An ambient vibration survey of the Sunshine Skyway Bridge was performed. The goal of this survey was to provide field data on the dynamic characteristics of the structure to corroborate...

Steel Bar Joist Performance: Design Deficiencies and Defects
Several failures of steel bar joist roofs have been investigated by the authors in the past decade. Many of these failures or performance problems have corresponded to bar joists manufactured...

Loma Prieta Response of an Eccentrically Braced Tall Building
Acceleration response records obtained during the October 17, 1989 Loma Prieta earthquake [M_s = 7.1] from the 47-story, eccentrically braced Embarcadero...

Signal Analysis for Quantitative AE Testing
Quantitative acoustic emission (AE) techniques can be used to monitor crack growth and to deduce microfracture mechanisms in quasi-brittle materials. Multichannel data acquisition systems...

Acoustic Emission Monitoring of Stressed Composite Bars
In this study, Acoustic Emission (AE) technique is used to monitor the behavior of composite bars subjected to direct tension. Aramid Fiber Reinforced Plastics (AFRP) bars were loaded...

 

 

 

 

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