scholarly journals Updated seismic fragility functions for cold-formed steel framed shear walls per FEMA P-58 methodology

2021 ◽  
Vol 244 ◽  
pp. 112753
Author(s):  
Fardad Haghpanah ◽  
Benjamin W. Schafer
Keyword(s):  
Shear Walls ◽  
Seismic Fragility ◽  
Fragility Functions ◽  
Cold Formed Steel ◽  
Framed Shear Walls

scholarly journals Updated Seismic Fragility Functions for Cold-Formed Steel Framed Shear Walls per FEMA P-58 Methodology

2020 ◽  
Author(s):  
Fardad Haghpanah ◽  
Benjamin W. Schafer
Keyword(s):  
Earthquake Engineering ◽  
Shear Walls ◽  
Senior Author ◽  
Economic Losses ◽  
Fragility Functions ◽  
Cyclic Tests ◽  
Repair Costs ◽  
Structural Panel ◽  
Cold Formed Steel ◽  
Framed Shear Walls

Performance-based earthquake engineering (PBEE) provides a robust alternative to traditional earthquake design. PBEE enables engineers to estimate expected damage, repair costs, and economic losses due to downtime for a candidate design, potentially leading to novel new designs or retrofit solutions. With the increasing application of light-frame structural systems, such as cold-formed steel (CFS) panels, in residential and commercial construction, it is necessary to develop and employ fragility functions for these systems to enable PBEE. In this regard, a set of fragility functions was previously developed by researchers based on a series of monotonic and cyclic tests for CFS framed shear walls with wood structural panel sheathing, flat strap X-bracing, and steel sheet sheathing. Recently, the senior author has led in the development of a large database of CFS framed shear wall tests, including 617 monotonic and cyclic tests conducted in the last 20 years from 25 primary sources. Based on the wider database, the fragility functions for CFS framed shear walls are re-evaluated. The developed fragility functions provide updated knowledge for application of PBEE per the FEMA P-58 methodology and are recommended for future use.

Impact of construction details on OSB-sheathed cold-formed steel framed shear walls

2014 ◽  
Vol 101 ◽  
pp. 114-123 ◽  
Author(s):  
P. Liu ◽  
K.D. Peterman ◽  
B.W. Schafer
Keyword(s):  
Shear Walls ◽  
Cold Formed Steel ◽  
Framed Shear Walls

scholarly journals Fire resistance of cold‐formed steel framed shear walls under various fire scenarios

2019 ◽  
Vol 44 (3) ◽  
pp. 352-364
Author(s):  
Blanca Andres ◽  
Matthew S. Hoehler ◽  
Matthew F. Bundy
Keyword(s):  
Fire Resistance ◽  
Shear Walls ◽  
Fire Scenarios ◽  
Cold Formed Steel ◽  
Framed Shear Walls

Simulation study on shear resistance of new cold-formed-steel-framed shear walls sheathed with steel sheet and gypsum boards

2020 ◽  
Vol 23 (9) ◽  
pp. 1800-1812
Author(s):  
Ruo-Qiang Feng ◽  
Qi Cai ◽  
Ying Ma ◽  
Shen Liu ◽  
Gui-Rong Yan
Keyword(s):  
Finite Element ◽  
Steel Sheet ◽  
Sheet Thickness ◽  
Shear Walls ◽  
Shear Resistance ◽  
Constitutive Relationship ◽  
Width Ratio ◽  
Shear Characteristics ◽  
Cold Formed Steel ◽  
Framed Shear Walls

The objective of this article is to present finite element modelling protocols and validation studies for the new cold-formed-steel-framed shear walls sheathed with steel sheet and gypsum boards. In this model, the nonlinear behaviours of the tapping screw connectors are represented by employing the ‘Pinching4’ material along with ‘zeroLength’ elements. The constitutive relationship parameters of the ‘Pinching4’ material were determined based on experimental data from the self-tapping screw connector shear test performed by the authors. The proposed procedure is implemented to generate the analytical specimens of seven full-scale cold-formed steel shear walls in the OpenSees platform. The load–deformation relationships, hysteresis curves and skeleton curves are compared with the test results performed by the authors. The results show that the finite element models can accurately simulate the shear characteristics of the new cold-formed steel shear walls. Finally, the effects of steel sheet thickness, stud thickness, sheathed material and height-to-width ratio of walls on the shear resistance were investigated.

Seismic performance of cold-formed steel framed shear walls with steel sheathing and gypsum board

2019 ◽  
Vol 143 ◽  
pp. 106238 ◽  
Author(s):  
Ruo-qiang Feng ◽  
Baochen Zhu ◽  
PengHui Xu ◽  
Yun Qiu
Keyword(s):  
Seismic Performance ◽  
Shear Walls ◽  
Gypsum Board ◽  
Cold Formed Steel ◽  
Framed Shear Walls
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