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- Aggregate interlocks (1)
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- Brillouin Scattering (1)
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- CFS framed shear wall; Steel sheathing; Finite element analysis; Seismic behavior (1)
- Coarse aggregates (1)
- Cold-Formed Steel; Shear Walls; Bearing Walls; Vertical Loa (1)
- Cold-Formed Thin-Walled Steel Beams; Built-Up Box Section; Numerical Analysis; Moment Capacity; Design Method (1)
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- Cold-formed stainless steel; Lipped channel-section; Web crippling; Finite element analysis; Strength reduction factor (1)
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- Publication
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- CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018) (62)
- American Iron and Steel Institute (AISI) Specifications, Standards, Manuals and Research Reports (1946 - present) (8)
- Civil, Architectural and Environmental Engineering Faculty Research & Creative Works (3)
- CCFSS Technical Bulletins (1993 - 2020) (1)
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Articles 61 - 74 of 74
Full-Text Articles in Engineering
Distortional Buckling Experiment On Cold-Formed Steel Lipped Channel Columns With Circle Holes Under Axial Compression, Xingyou Yao, Yanli Guo, Zhen Nie
Distortional Buckling Experiment On Cold-Formed Steel Lipped Channel Columns With Circle Holes Under Axial Compression, Xingyou Yao, Yanli Guo, Zhen Nie
CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)
The objective of this paper is to research the distortional buckling mode and load-carrying capacity of cold-formed thin-walled steel columns with circle holes in web. Compression tests were conducted on 26 intermediate length columns with and without holes. The test members included four different kinds of circle holes. Test results show that the distortional buckling occurred for intermediate columns with holes and the strength of columns with holes was less than that of columns without circle hole. The ultimate strength of columns decreased with the increase of the total transverse width of hole in cross-section of members. For each specimen, …
Incorporation Of Elastic Local Buckling In A Plain Channel Section Beam Subjected To Double-Curvature Bending: An Effective-Width Approach, Edwin Lim, Barry J. Goodno, James I. Craig
Incorporation Of Elastic Local Buckling In A Plain Channel Section Beam Subjected To Double-Curvature Bending: An Effective-Width Approach, Edwin Lim, Barry J. Goodno, James I. Craig
CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)
When electrical cabinets are subjected to lateral loads, such as earthquakes, the beams of the cabinet frame typically experience double-curvature bending deformation. These beams are usually constructed from cold-formed plain channel sections so they are vulnerable to elastic local buckling near their ends, where high stresses from applied loads are more likely to develop. To capture local buckling behavior, structural engineers typically use high-fidelity finite element models, but this approach can be complex and computationally expensive. A Timoshenko beam element model is simpler and less computationally costly but it is not capable of capturing local buckling behavior. In this paper, …
Identifying Shear Buckling Coefficients For Channels With Rectangular Web Stiffeners Using The Generalised Cfsm, Morgan A. Rendall, Gregory J. Hancock, Kim J. R. Rasmussen
Identifying Shear Buckling Coefficients For Channels With Rectangular Web Stiffeners Using The Generalised Cfsm, Morgan A. Rendall, Gregory J. Hancock, Kim J. R. Rasmussen
CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)
The Direct Strength Method (DSM) of design for cold-formed sections was recently extended in the North American Specification for Cold-Formed Steel Structural Members (NAS S100:2012) to include members in shear. The method has largely been developed on the basis of work done on lipped channel sections. To utilise the method requires the critical shear buckling load of the section, which may be determined from a minimum point on the signature curve for the section in pure shear. However when longitudinal web stiffeners are added to the channel a minimum may not exist, or may occur at half-wavelengths where the critical …
Experimental Investigation Of Cold-Formed C-Sections With Central Square Holes In Shear, Cao Hung Pham, Andreas Pelosi, Thomas Earls, Gregory J. Hancock
Experimental Investigation Of Cold-Formed C-Sections With Central Square Holes In Shear, Cao Hung Pham, Andreas Pelosi, Thomas Earls, Gregory J. Hancock
CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)
The North American Specification S100:2012 Edition has recently included DSM design rules for unperforated channel sections in shear. However, there are no rules presented in this standard for the DSM in shear for sections with holes. Recently, a testing program has been performed at the University of Sydney to determine the ultimate strength of high strength cold-formed C-sections with a thickness of 1.5 mm and central square holes of varying sizes. Three different sizes of the square holes were chosen for testing. For thin sections, the DSM shear curve was found to be applicable for design of sections with square …
A Direct Strength Method (Dsm) Of Design For Channel Sections In Shear With Square And Circular Web Holes, Song Hong Pham, Cao Hung Pham, Gregory J. Hancock
A Direct Strength Method (Dsm) Of Design For Channel Sections In Shear With Square And Circular Web Holes, Song Hong Pham, Cao Hung Pham, Gregory J. Hancock
CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)
The Direct Strength Method (DSM) design rules for cold-formed steel members in shear have been incorporated recently into the North American Specification (AISI S100-12) and are being implemented in the Australian standard (AS/NZS 4600:2005). The method, which was calibrated for unperforated members only, requires two inputs including the buckling load Vcr and the shear yielding load Vy. For members with square web cut-outs, Vcr can be computed by either the Spline Finite Strip Method (SFSM) or the tabulated values based on the shear buckling coefficients kv as studied by CH Pham or the Finite Element Method (FEM). However, Vy has …
North American Standard For The Design Of Profiled Steel Diaphragm Panels, 2016 Edition, American Iron And Steel Institute
North American Standard For The Design Of Profiled Steel Diaphragm Panels, 2016 Edition, American Iron And Steel Institute
American Iron and Steel Institute (AISI) Specifications, Standards, Manuals and Research Reports (1946 - present)
No abstract provided.
North American Specification For The Design Of Cold-Formed Steel Structural Members, 2016 Edition, American Iron And Steel Institute
North American Specification For The Design Of Cold-Formed Steel Structural Members, 2016 Edition, American Iron And Steel Institute
American Iron and Steel Institute (AISI) Specifications, Standards, Manuals and Research Reports (1946 - present)
No abstract provided.
Direct Strength Prediction Of Cold-Formed Steel Beam-Columns, American Iron And Steel Institute
Direct Strength Prediction Of Cold-Formed Steel Beam-Columns, American Iron And Steel Institute
American Iron and Steel Institute (AISI) Specifications, Standards, Manuals and Research Reports (1946 - present)
The Direct Strength Method (DSM) of cold-formed steel member design employs local, distortional, and global cross-section elastic buckling analysis with empirically derived “direct” expressions to predict member strength. DSM is an accepted design method in national design specifications (e.g., AISI-S100-16) and enables a unified, robust, and flexible design approach. However, for beam-columns DSM in current design specifications employs simplified linear interaction expressions based on combining the isolated axial and bending elastic buckling and strength response. Today, local, distortional, and global elastic buckling under any combination of axial load and bending moments may be found using elastic buckling analysis tools such …
Characterization Of Cfs Framed Diaphragm Behavior, American Iron And Steel Institute
Characterization Of Cfs Framed Diaphragm Behavior, American Iron And Steel Institute
American Iron and Steel Institute (AISI) Specifications, Standards, Manuals and Research Reports (1946 - present)
Knowledge of the in-plane response to loading of cold-formed steel (CFS) framed diaphragm structures is essential for seismic and wind design. The information available specific to diaphragm design in the North American CFS design standards (AISI S240 & S400) is based on limited experimental work and the extrapolation of design methods developed for the wood industry. To address this shortcoming a test-based research project was performed in the Jamieson Structures Laboratory at McGill University focusing on the characterization of the behaviour under in-plane loading of CFS framed - wood sheathed diaphragms. This research was a complementary study to a research …
Ccfss Special Edition Technical Bulletin Summer 2016, Wei-Wen Yu Center For Cold-Formed Steel Structures
Ccfss Special Edition Technical Bulletin Summer 2016, Wei-Wen Yu Center For Cold-Formed Steel Structures
CCFSS Technical Bulletins (1993 - 2020)
No abstract provided.
Temperature And Strain Measurements With Fiber Optic Sensors For Steel Beams Subjected To Fire, Yi Bao, Yizheng Chen, Matthew S. Hoehler, Christopher M. Smith, Matthew F. Bundy, Genda Chen
Temperature And Strain Measurements With Fiber Optic Sensors For Steel Beams Subjected To Fire, Yi Bao, Yizheng Chen, Matthew S. Hoehler, Christopher M. Smith, Matthew F. Bundy, Genda Chen
Civil, Architectural and Environmental Engineering Faculty Research & Creative Works
This paper presents measurements of high temperatures using a Brillouin scattering based fiber optic sensor and large strains using an extrinsic Fabry-Perot interferometric sensor for assessing the thermo-mechanical behaviors of simply supported steel beams subjected to combined thermal and mechanical loading. The distributed fiber optic sensor captures detailed, non- uniform temperature distributions that are compared with thermocouple measurements resulting in an average relative difference of less than 5 % at 95 % confidence level. The extrinsic Fabry- Perot interferometric sensor captures large strains at temperatures above 1000 C. The strain results measured from the distributed fiber optic sensors and extrinsic …
Shear Behavior Of High-Strength Self-Consolidating Concrete In Nebraska University Bridge Girders, Alex Griffin, John J. Myers
Shear Behavior Of High-Strength Self-Consolidating Concrete In Nebraska University Bridge Girders, Alex Griffin, John J. Myers
Civil, Architectural and Environmental Engineering Faculty Research & Creative Works
Current reinforced and prestressed concrete design equations were developed for conventional concrete elements. Self-consolidating concrete (SCC) typically contains a lower coarse aggregate content and size than conventional concrete, which potentially hinders the aggregate interlock contribution to a concrete's shear strength. Thus, shear design equations must be verified with SCC mixtures. Two full-scale precast, prestressed concrete Nebraska University girders were tested to assess the shear behavior of high-strength SCC. Both girders were designed to permit two tests on each girder, both with and without shear reinforcement. Ultimate shear loads and crack patterns were documented and compared with code estimates, finite element …
Resistance Of Arc Spot Welds -- Update To Provisions, American Iron And Steel Institute
Resistance Of Arc Spot Welds -- Update To Provisions, American Iron And Steel Institute
American Iron and Steel Institute (AISI) Specifications, Standards, Manuals and Research Reports (1946 - present)
The provisions of the AISI S100-12 standard for strength of arc spot welds loaded in shear and tension have not been revised since the 1999 standard. Since then, four new research studies have created and tested arc spot welded connections, expanding the database of available tests. Therefore, a reconsideration of both the resistance equations and the resistance and safety factors using the enlarged data base was undertaken. This study performed a comprehensive analysis of the entire arc spot weld data base, where 450 specimens were categorized by their respective failure modes to assess current AISI S100-12 resistance equations. Performance of …
Resistance Of Arc Spot Welds – Update To Provisions, B. Paige Blackburn, Thomas Sputo, Cevyn Meyer
Resistance Of Arc Spot Welds – Update To Provisions, B. Paige Blackburn, Thomas Sputo, Cevyn Meyer
American Iron and Steel Institute (AISI) Specifications, Standards, Manuals and Research Reports (1946 - present)
The American Iron and Steel Institute (AISI) Standards Council selected this project as one of four winning research proposals for its 2015 Small Project Fellowship Program. Project selections were based on several factors, including the potential for long-term impact on the industry; steel industry engagement and co-funding; and results for the AISI standards development committee, the student, and the academic institution. The objective of this project was to evaluate the provisions for determining the strength of arc spot welds in light of recent research studies. It is anticipated that the results of this study will impact the provisions in future …