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Articles 1171 - 1200 of 2023
Full-Text Articles in Structural Engineering
Optimum Design Of Cold Formed Steel Residential Roof Trusses, L. Xu, H. Min
Optimum Design Of Cold Formed Steel Residential Roof Trusses, L. Xu, H. Min
CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)
A computer-based optimal design approach for residential roof trusses using cold-formed steel C-sections is presented. The truss design is based on CSA S136-94 and the truss design guide published by the American Iron and Steel Institute and the Canadian Sheet Steel Building Institute. A genetic algorithm was adopted to obtain the minimum cost design with consideration to truss topology and member size simultaneously. The presented design examples demonstrate the applicability and efficiency ofthe proposed approach.
Cyclic Pull-Out Strength Of Steel Roof And Wall Cladding Systems, Mahen Mahendran, Dhammika Mahaarachchi
Cyclic Pull-Out Strength Of Steel Roof And Wall Cladding Systems, Mahen Mahendran, Dhammika Mahaarachchi
CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)
When crest-fixed thin steel roof cladding systems are subjected to wind uplift, local pull-through or pull-out failures occur prematurely at their screwed connections. During high wind events such as storms and cyclones these localised failures then lead to severe damage to buildings and their contents. In recent times, the use of thin steel battens/purlins has increased considerably. This has made the pull-out failures more critical in the design of steel cladding systems. Recent research has developed a design formula for the static pull-out strength of steel cladding systems. However, the effects of fluctuating wind uplift loading that occurs during high …
Fe Models For Sheeting Under Interaction Load, Jan Kerstens, Bert Snijder, Monique Bakker, H. Hofmeyer
Fe Models For Sheeting Under Interaction Load, Jan Kerstens, Bert Snijder, Monique Bakker, H. Hofmeyer
CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)
Experiments show that, after ultimate load, sheeting may fail by three distinct post-failure modes. In this paper, three finite element models are presented, one for each post-failure mode. One of the finite element models was difficult to develop. A spring model explains this. The finite element models show that, at ultimate load, only two different ultimate failure modes exist. This is important for the development of mechanical models for sheeting failure.
Lateral Bracing Connections For C-Sections Subjected To Bending, B. Beshara, Roger A. Laboube
Lateral Bracing Connections For C-Sections Subjected To Bending, B. Beshara, Roger A. Laboube
CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)
The overall behavior under bending moment of cold-formed steel C-sections assemblies was investigated. Each test assembly consisted of C-sections acting as beams having a track to restrain the ends. Lateral bracing to restrain C-sections from rotation was provided at mid-span. To better understand the influence of the brace connection on the bending behavior, an experimental investigation was carried out with particular emphasis placed on the study of the effect of the mid-span brace connection on the bending behavior, and the effect of attaching dry wall to the tension flange. For the dry wall test specimens, lateral bracing was also provided …
Lateral Buckling Of Prismatic Members About An Imposed Axis Of Rotation, Leopold K. Sokol
Lateral Buckling Of Prismatic Members About An Imposed Axis Of Rotation, Leopold K. Sokol
CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)
This paper deals with the lateral buckling of prismatic members whose position of the axis of rotation is imposed by the conditions of lateral support. As a function of the type of connection with the lateral support, the rotation may be free or hindered (elastic end restraint). This may concern, for instance, the case of a purlin stabilized by a roof structure or of a column stabilized by an external cladding or by another type of efficient continuous bracing. Usually, the check of this type of instability is complex and leads to sophisticated and tedious computations. In order to avoid …
Elastic-Plastic Interactive Buckling Of Thin-Walled Steel Compression Members, Dan Dubina, Viorel Ungureanu
Elastic-Plastic Interactive Buckling Of Thin-Walled Steel Compression Members, Dan Dubina, Viorel Ungureanu
CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)
In the actual design codes the interaction formula for local and overall buckling modes of thin-walled steel compression (TWSC) members, the effect of local buckling. is introduced by means of effective strength of short members. This paper proposes to replace, into the Ayrton-Perry interaction formula, the short member "effective" strength, which is based on the "effective width" approach by the plastic strength evaluated by means of local plastic mechanism analysis. There are some papers by Murray et al. [1,2,3], in which the plastic mechanisms corresponding to the local buckling of plates and TWSC members in compression are analysed. On this …
Flexural Behavior Of Profiled Composite Beams, Jun-Yep Song, Young Bong Kwon
Flexural Behavior Of Profiled Composite Beams, Jun-Yep Song, Young Bong Kwon
CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)
The behavior of composite beams, which are composed of cold-formed steel sheeting and normal strength concrete, has been studied. A series of flexural tests of composite beams has been executed and analytical methods to trace the nonlinear behavior of composite beams have been developed. The nonlinear moment-curvature relation of the composite beam has been described using a simple power model and cross section analysis procedure. The load-deflection behavior of the composite beam simulated by the step-by-step numerical integration method has been compared with test results.
The 1999 Supplement To The Aisi Design Specification, Roger L. Brockenbrough
The 1999 Supplement To The Aisi Design Specification, Roger L. Brockenbrough
CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)
The AISI Committee on Specifications for Cold-Formed Steel recently developed Supplement No. 1 to the 1996 Specification for the Design of Cold-Formed Steel Structural Members. The Supplement reflects new information developed through research projects, brings provisions in agreement with other specifications where appropriate, and also provides certain clarifications and corrections. The Supplement and the Specification have both been recently accepted as ANSI standards. The present paper reviews the major items included in the Supplement. The Committee continues to sponsor research projects aimed at developing a better understanding of particular areas of cold-formed steel behavior and more comprehensive design rules. Projects …
Web Crippling Data And Calibrations Of Cold Formed Steel Members, R. M. Schuster, B. Beshara
Web Crippling Data And Calibrations Of Cold Formed Steel Members, R. M. Schuster, B. Beshara
American Iron and Steel Institute (AISI) Specifications, Standards, Manuals and Research Reports (1946 - present)
No abstract provided.
A Design Approach For Complex Stiffeners, Andrew T. Sarawit
A Design Approach For Complex Stiffeners, Andrew T. Sarawit
American Iron and Steel Institute (AISI) Specifications, Standards, Manuals and Research Reports (1946 - present)
No abstract provided.
Ccfss Technical Bulletin August 2000, Wei-Wen Yu Center For Cold-Formed Steel Structures
Ccfss Technical Bulletin August 2000, Wei-Wen Yu Center For Cold-Formed Steel Structures
CCFSS Technical Bulletins (1993 - 2020)
No abstract provided.
Ccfss News August 2000, Wei-Wen Yu Center For Cold-Formed Steel Structures
Ccfss News August 2000, Wei-Wen Yu Center For Cold-Formed Steel Structures
CCFSS Newsletters (1999 - 2008)
No abstract provided.
Distoritonal Buckling Of Cold-Formed Steel Columns, Benjamin W. Schafer
Distoritonal Buckling Of Cold-Formed Steel Columns, Benjamin W. Schafer
American Iron and Steel Institute (AISI) Specifications, Standards, Manuals and Research Reports (1946 - present)
No abstract provided.
A Design Guide For Standing Seam Roof Panels, American Iron And Steel Institute
A Design Guide For Standing Seam Roof Panels, American Iron And Steel Institute
American Iron and Steel Institute (AISI) Specifications, Standards, Manuals and Research Reports (1946 - present)
No abstract provided.
Destructive And Non-Destructive Testing Of Bridge J857 Phelps County, Missouri : Feasibility Study On Damage Detection Of Rc Structures Using Dynamic Signature Tests, Genda Chen, Xinbao Yang, Huimin Mu, Antonio Nanni
Destructive And Non-Destructive Testing Of Bridge J857 Phelps County, Missouri : Feasibility Study On Damage Detection Of Rc Structures Using Dynamic Signature Tests, Genda Chen, Xinbao Yang, Huimin Mu, Antonio Nanni
Civil, Architectural and Environmental Engineering Faculty Research & Creative Works
This report presents the results of a research program aimed at investigating the constructability and effectiveness of externally bonded FRP strengthening systems for improving the flexural capacity of bridge decks and piers. The joint effort of two universities, industry, and a state DOT provided the premise for a successful outcome. Bridge J857 was constructed in 1932 and was scheduled for demolition in the fall of 1998 due to highway realignment. Two of the three solid reinforced concrete (RC) decks were strengthened using two FRP systems namely, near-surface mounted carbon FRP (CFRP) rods and surface bonded CFRP sheets. Bridge decks were …
Ccfss Technical Bulletin February 2000, Wei-Wen Yu Center For Cold-Formed Steel Structures
Ccfss Technical Bulletin February 2000, Wei-Wen Yu Center For Cold-Formed Steel Structures
CCFSS Technical Bulletins (1993 - 2020)
No abstract provided.
Ccfss News February 2000, Wei-Wen Yu Center For Cold-Formed Steel Structures
Ccfss News February 2000, Wei-Wen Yu Center For Cold-Formed Steel Structures
CCFSS Newsletters (1999 - 2008)
No abstract provided.
Effect Of Anchorage And Sheathing Configuration On The Cyclic Response Of Long Steel-Frame Shear Walls, American Iron And Steel Institute
Effect Of Anchorage And Sheathing Configuration On The Cyclic Response Of Long Steel-Frame Shear Walls, American Iron And Steel Institute
American Iron and Steel Institute (AISI) Specifications, Standards, Manuals and Research Reports (1946 - present)
No abstract provided.
Estimation Of Restraint Forces For Z-Purlin Roofs Under Gravity Loads, American Iron And Steel Institute
Estimation Of Restraint Forces For Z-Purlin Roofs Under Gravity Loads, American Iron And Steel Institute
American Iron and Steel Institute (AISI) Specifications, Standards, Manuals and Research Reports (1946 - present)
No abstract provided.
Steel Deck Institute Design Manual For Composite Decks, Form Decks, And Roof Decks, Steel Deck Institute
Steel Deck Institute Design Manual For Composite Decks, Form Decks, And Roof Decks, Steel Deck Institute
Steel Deck Institute (SDI) Specifications and Manuals (1939 - present)
No abstract provided.
Influence Of Hydration Temperature On Durability And Mechanical Property Performance Of Prestressed And Precast High-Performance Concrete Beams, John J. Myers, R. L. Carrasquillo
Influence Of Hydration Temperature On Durability And Mechanical Property Performance Of Prestressed And Precast High-Performance Concrete Beams, John J. Myers, R. L. Carrasquillo
Civil, Architectural and Environmental Engineering Faculty Research & Creative Works
Concrete technology has continued to advance throughout the years to meet the demands of designers and innovative structural systems. With the advent of high-performance concrete (HPC), which contains large amounts of cementitious materials, the investigation of the impact of concrete temperature development during hydration on concrete performance is of keen interest. Match-curing technology was used to investigate the influence of concrete temperature development during hydration on the mechanical and material property performance of prestressed and precast HPC beams. These members were fabricated for use in two recently constructed HPC bridges in Texas. The investigation was conducted in conjunction with the …
Investigation Of Inflection Points As Brace Points In Multi-Span Purlin Roof Systems, Michael R. Bryant, Thomas M. Murray
Investigation Of Inflection Points As Brace Points In Multi-Span Purlin Roof Systems, Michael R. Bryant, Thomas M. Murray
CCFSS Library (1939 - present)
No abstract provided.
Specification For The Design, Testing, And Utilization Of Industrial Steel Storage Racks, Rack Manufacturers Institute
Specification For The Design, Testing, And Utilization Of Industrial Steel Storage Racks, Rack Manufacturers Institute
Rack Manufacturers Institute (RMI) Specifications and Manuals (1984 - 2012)
No abstract provided.
Ccfss Technical Bulletin August 1999, Wei-Wen Yu Center For Cold-Formed Steel Structures
Ccfss Technical Bulletin August 1999, Wei-Wen Yu Center For Cold-Formed Steel Structures
CCFSS Technical Bulletins (1993 - 2020)
No abstract provided.
Ccfss News August 1999, Wei-Wen Yu Center For Cold-Formed Steel Structures
Ccfss News August 1999, Wei-Wen Yu Center For Cold-Formed Steel Structures
CCFSS Newsletters (1999 - 2008)
No abstract provided.
Design Of Cfs Members And Connections For Cyclic Loading, Wei-Wen Yu, Roger A. Laboube
Design Of Cfs Members And Connections For Cyclic Loading, Wei-Wen Yu, Roger A. Laboube
American Iron and Steel Institute (AISI) Specifications, Standards, Manuals and Research Reports (1946 - present)
No abstract provided.
Design Of Cold-Formed Steel Structural Members And Connections For Cyclic Loading (Fatigue), Roger A. Laboube, Wei-Wen Yu
Design Of Cold-Formed Steel Structural Members And Connections For Cyclic Loading (Fatigue), Roger A. Laboube, Wei-Wen Yu
CCFSS Library (1939 - present)
PREFACE Fatigue in a structural steel member or connection is the process of initiation and subsequent growth of a crack under the action of a cyclic or repetitive load. The fatigue process commonly occurs at a stress level less than the static failure condition. Although fatigue design guidelines have existed for hot-rolled steel structural members and connection, there have been no generally accepted design guidelines in the AISI Specification for addressing fatigue in a cold-formed steel member or connection. Therefore, the intent of the research reported herein was to develop general design rules for design of cold-formed steel members and …
Destructive And Non-Destructive Testing Of Bridge J857 Phelps County, Missouri : Strengthening And Testing To Failure Of Bridge Decks, Tarek Alkhrdaji, Antonio Nanni, Genda Chen, Michael G. Barker
Destructive And Non-Destructive Testing Of Bridge J857 Phelps County, Missouri : Strengthening And Testing To Failure Of Bridge Decks, Tarek Alkhrdaji, Antonio Nanni, Genda Chen, Michael G. Barker
Civil, Architectural and Environmental Engineering Faculty Research & Creative Works
Concrete bridges are conventionally reinforced with steel bars and/or prestressed with steel tendons. When subjected to aggressive environments, corrosion of the reinforcing and prestressing steel occurs and eventually leads to premature structural deterioration and loss of serviceability. In addition, the increasing service loads as well as seismic upgrade requirements result in a need to strengthen many of these bridges. The use of externally bonded steel plates for flexural and shear strengthening of concrete members is well established. However, corrosion related problems have limited the use of this technique for outdoor application. Fiber reinforced polymer (FRP) composites are corrosion resistant and …
Monotonic And Cyclic Tests Of Long Steel-Frame Shear Walls With Openings, Alexander J. Salenikovich, J. Daniel Dolan, W. Samuel Easterling
Monotonic And Cyclic Tests Of Long Steel-Frame Shear Walls With Openings, Alexander J. Salenikovich, J. Daniel Dolan, W. Samuel Easterling
American Iron and Steel Institute (AISI) Specifications, Standards, Manuals and Research Reports (1946 - present)
No abstract provided.
Ccfss Technical Bulletin February 1999, Wei-Wen Yu Center For Cold-Formed Steel Structures
Ccfss Technical Bulletin February 1999, Wei-Wen Yu Center For Cold-Formed Steel Structures
CCFSS Technical Bulletins (1993 - 2020)
No abstract provided.