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Author : Guowang Yu
Release : 2013
Genre : Shear walls
Kind : eBook
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Book Synopsis Cold-formed Steel Framed Shear Wall Sheathed with Corrugated Sheet Steel by : Guowang Yu
Download or read book Cold-formed Steel Framed Shear Wall Sheathed with Corrugated Sheet Steel written by Guowang Yu. This book was released on 2013. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Mahsa Mahdavian
Release : 2016
Genre : Shear walls
Kind : eBook
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Book Synopsis Innovative Cold-Formed Steel Shear Walls with Corrugated Steel Sheathing by : Mahsa Mahdavian
Download or read book Innovative Cold-Formed Steel Shear Walls with Corrugated Steel Sheathing written by Mahsa Mahdavian. This book was released on 2016. Available in PDF, EPUB and Kindle. Book excerpt: This thesis presents two major sections with the objective of introducing a new cold-formed steel (CFS) shear wall system with corrugated steel sheathings. The work shown herein includes the development of an optimal shear wall system as well as an optimal slit configuration for the CFS corrugated sheathings which result in a CFS shear wall with high ductility, high strength, high stiffness and overall high performance. The conclusion is based on the results of 36 full-scale shear wall tests performed in the structural laboratory of the University of North Texas. A variety of shear walls were the subject of this research to make further discussions and conclusions based on different sheathing materials, slit configurations, wall configurations, sheathing connection methods, wall dimensions, shear wall member thicknesses, and etc. The walls were subject to cyclic (CUREE protocol) lateral loading to study their deformations and structural performances. The optimal sit configuration for CFS shear walls with corrugated steel sheathings was found to be 12×2 in. vertical slits in 6 rows. The failure mode observed in this shear wall system was the connection failure between the sheathing and the framing members. Also, most of the shear walls tested displayed local buckling of the chord framing members located above the hold-down locations. The second section includes details of developing a Finite Element Model (FEM) in ABAQUS software to analyze the lateral response of the new shear wall systems. Different modeling techniques were used to define each element of the CFS shear wall and are reported herein. Material properties from coupon test results are applied. Connection tests are performed to define pinching paths to model fasteners with hysteretic user-defined elements. Element interactions, boundary conditions and loading applications are consistent with full scale tests. CFS members and corrugated sheathings are modeled with shell elements, sheathing-to-frame fasteners are modeled using nonlinear springs (SPRING2 elements) for monotonic models and a general user defined element (user subroutine UEL) for cyclic models. Hold-downs are defined by boundary conditions. A total of three models were developed and validated by comparing ABAQUS results to full scale test results.
Author : Noritsugu Yanagi
Release : 2013
Genre : Shear walls
Kind : eBook
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Book Synopsis Analytical Model of Cold-formed Steel Framed Shear Wall with Steel Sheet and Wood-based Sheathing by : Noritsugu Yanagi
Download or read book Analytical Model of Cold-formed Steel Framed Shear Wall with Steel Sheet and Wood-based Sheathing written by Noritsugu Yanagi. This book was released on 2013. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Release : 2009
Genre : Steel, Structural
Kind : eBook
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Book Synopsis Design Guide by :
Download or read book Design Guide written by . This book was released on 2009. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Veronica Santos
Release : 2018
Genre :
Kind : eBook
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Book Synopsis Higher Capacity Cold-formed Steel Sheathed and Framed Shear Walls for Mid-rise Buildings by : Veronica Santos
Download or read book Higher Capacity Cold-formed Steel Sheathed and Framed Shear Walls for Mid-rise Buildings written by Veronica Santos. This book was released on 2018. Available in PDF, EPUB and Kindle. Book excerpt: "The use of cold-formed steel (CFS) for seismic force-resisting systems (SFRS), including shear walls, has increased throughout the years. However, the design provisions for CFS sheathed and framed shear walls available in the North American CFS standards (AISI S400 and AISI S240) are limited by the shear walls' sheathing and framing thicknesses. Design guidelines for CFS sheathed and framed shear walls for the purpose of mid-rise construction (up to 5 storeys) are still absent from the standards. The main objective of this research program was to develop a design procedure for CFS sheathed and framed shear walls to achieve higher capacity and ductility to resist the higher forces experienced in mid-rise construction. The developed design procedure is proposed to be included in the provisions of the AISI S240 Standard and AISI S400 Standard.The design procedure was developed by determining the shear strength of full-scale shear wall specimens built and tested at McGill University under monotonic and cyclic loading protocols. A total of 31 specimens, with varying building parameters, were constructed using thicker sheathing and framing members than what is currently available for design. The specimens were built using two new shear wall configurations (double-sheathed and centre-sheathed) to address out-of-plane forces experienced by shear walls tested in previous research programs.The centre-sheathed shear wall configuration, with a confined and concentrically placed sheathing panel, reached a shear resistance four times higher than the design values tabulated in the current standards. The ductility of these CFS shear walls was also significantly improved. A preliminary equation-based nominal shear strength prediction method has been developed for the centre-sheathed shear walls; the method reflects the shear wall's different configuration and superior behaviour. Following the test data analysis, preliminary design parameters for Limit States Design (LSD) used in Canada and for Load and Resistance Factor Design (LRFD) used in the USA and Mexico were determined, including the load resistance factor, f, and the factor of safety. In addition, capacity based design parameters were determined for seismic design in Canada. These parameters included the "test-based" seismic performance factors, Rd and Ro, which were found to be 2.8 and 1.5 respectively. The superior performance of the centre-sheathed configuration showed its promising potential as a new design option for higher capacity CFS shear walls. However, before a potential implementation into mid-rise construction, further research is needed in order for a complete design procedure to be developed. " --
