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Full-Text Articles in Engineering

Performance Of Cold-Formed Steel-Framed Shear Walls: Alternative Configurations, Kelly A. Morgan, Mark A. Sorhouet, Reynaud Serrette Jun 2002

Performance Of Cold-Formed Steel-Framed Shear Walls: Alternative Configurations, Kelly A. Morgan, Mark A. Sorhouet, Reynaud Serrette

American Iron and Steel Institute (AISI) Specifications, Standards, Manuals and Research Reports (1946 - present)

This report presents the results of twenty shear wall tests that were conducted to evaluate the performance of wall configurations not currently (2002) permitted in the building codes. Ten (10) walls were evaluated under reversed cyclic loading and the other ten (10) under monotonic loading. Brief descriptions of the test program and results are presented in the following paragraphs. The reversed cyclic load tests comprised 4 ft. x 8 ft. 54- and 68-mil framed walls with 7/16-in. OSB rated sheathing on one or both sides of the wall and 33-mil framed walls with 27-mil sheet steel. The sheet steel wall …


Limitations Of Current Design Procedures For Steel Members In Space Frames, Lip H. Teh Jan 2002

Limitations Of Current Design Procedures For Steel Members In Space Frames, Lip H. Teh

Faculty of Engineering and Information Sciences - Papers: Part A

The use of more advanced methods of analysis to design steel frames may lead to substantial material savings, in addition to simplicity in the design procedures. However, these benefits do not yet appear to be a powerful incentive for many structural engineers to abandon the familiar linear elastic analysis (LEA) based design procedures, even when dealing with steel structures that are not regular rectangular frames. This paper uses a heuristic example to demonstrate the serious limitations of the LEA based design procedures, whether alignment charts or system buckling analysis is used to determine the effective lengths of the compression members. …


The Examination Of Infra-Red Techniques For Inspection Of Steel Structures I & Ii, Vachirapun Trakulyingyong, Mark D. Bowman Jan 2002

The Examination Of Infra-Red Techniques For Inspection Of Steel Structures I & Ii, Vachirapun Trakulyingyong, Mark D. Bowman

JTRP Technical Reports

Infra-red thermography systems that have been developed over the last few years offer great potential to locate and discover flaws in steel highway bridge structures at a relatively early stage in their development. Under ideal conditions, the use of infra-red instrumentation should allow bridge inspection personnel to rapidly scan the structure and determine if a potential structural problem has developed. If a problem spot is located by the infra-red camera, then the trouble spot can be examined carefully to determine the need for corrective maintenance. The primary purpose of this research study is to evaluate the accuracy and reliability of …


Fatigue Behavior Of Beam Diaphragm Connections With Intermittent Fillet Welds: Part Ii, Brittle Fracture Examination Of The I-64 Blue River Bridge, Mark D. Bowman Jan 2002

Fatigue Behavior Of Beam Diaphragm Connections With Intermittent Fillet Welds: Part Ii, Brittle Fracture Examination Of The I-64 Blue River Bridge, Mark D. Bowman

JTRP Technical Reports

This report is the second of a two-part, three volume final report presenting the findings of the research work that was undertaken to evaluate the behavior of Indiana highway bridges with diaphragm members welded directly to the web of the primary beams and girders. Fatigue cracks have been observed at several bridges that utilize the welded diaphragm connection. The seriousness of the cracking and the corresponding potential risk on the integrity of the bridge superstructure were assessed. Inspection and repair guidelines for bridges with the welded diaphragm connections were also developed as part of the research effort. This volume presents …