Download Free Analysis Of Stiffened And Unstiffened Shear Walls Book in PDF and EPUB Free Download. You can read online Analysis Of Stiffened And Unstiffened Shear Walls and write the review.

As software skills rise to the forefront of design concerns, the art of structural conceptualization is often minimized. Structural engineering, however, requires the marriage of artistic and intuitive designs with mathematical accuracy and detail. Computer analysis works to solidify and extend the creative idea or concept that might have started o
A Complete Guide to Solving Lateral Load Path Problems The Analysis of Irregular Shaped Structures: Diaphragms and Shear Walls explains how to calculate the forces to be transferred across multiple discontinuities and reflect the design requirements on construction documents. Step-by-step examples offer progressive coverage, from basic to very advanced illustrations of load paths in complicated structures. The book is based on the 2009 International Building Code, ASCE/SEI 7-05, the 2005 Edition of the National Design Specification for Wood Construction, and the 2008 Edition of the Special Design Provisions for Wind and Seismic (SDPWS-08). COVERAGE INCLUDES: Code sections and analysis Diaphragm basics Diaphragms with end horizontal offsets Diaphragms with intermediate offsets Diaphragms with openings Open front and cantilever diaphragms Diaphragms with vertical offsets Complex diaphragms with combined openings and offsets Standard shear walls Shear walls with openings Discontinous shear walls Horizontally offset shear walls The portal frame Rigid moment-resisting frame walls--the frame method of analysis
Steel Plate Shear Walls (SPSWs) are commonly used in low- to high-rise buildings as the lateral load resisting system. Most commonly used SPSWs in multi-storey buildings are unstiffened, stiffened, and composite SPSWs. Unlike unstiffened SPSWs, very little research has been conducted to assess the seismic performance of stiffened and composite SPSWs. The stiffened and composite SPSWs have been proved to provide higher level of ductility due to the fact that they can prevent the buckling of thin infill plate, while increasing the initial stiffness and energy absorbance capacity of the whole system. The objective of current study is to assess the seismic performance and collapse capacity of stiffened and composite SPSWs. In the current research work, two types of composite SPSWs (traditional and innovative) are considered. In innovative composite SPSW, there is a small gap between reinforced concrete (RC) panel and surrounding boundary members, while in traditional one, RC panel is in direct contact with surrounding boundary members. In the first step, a reliable macro-modelling approach was developed for each type of SPSWs considered in this study. The validity of the proposed macro models was then investigated against available experimental data. Several multi-storey stiffened and composite SPSWs were designed according to CSA S16-14 and NBC 2015. To estimate the seismic response parameters (i.e., ductility-related force modification factor and overstrength-related force modification factor) for designing stiffened and composite SPSWs, nonlinear static pushover analysis and incremental dynamic analysis (IDA) have been performed on all archetypes using OpenSees following the procedure presented in FEMA P695. Quantification of seismic parameters of stiffened and composite SPSWs, including period-based ductility, overstrength, and collapse margin ratio has been conducted to better understand the seismic response and collapse capacity of the SPSW system. The results showed that all archetypes provide significant safety margin against collapse (large collapse margin ratio values) and satisfy the requirements of FEMA P695. Seismic response sensitivity of traditional composite SPSWs to the variation of post-yielding parameters (i.e., ductility capacity and post-cap stiffness ratio) in infill plate and variation of post-cracking parameters (i.e., shear strain correspond to maximum shear stress, yielding shear strain, and residual stress) in shear behavior adopted for RC panel are further investigated. The study showed that the capacity of composite SPSW is more sensitive to the variation of post-yielding parameters of the infill plate, while the variation of post-cracking parameters of the concrete panel has a minor effect on overall performance of the composite SPSW system. Steel plate shear wall with regularly spaced circular perforations has recently been developed. While the current edition of AISC 341-16 and CSA S16-14 have adopted perforated SPSW in their design standards, no simple numerical model is currently available for this SPSW system. In this study, a reliable macro-modelling approach was developed for regularly spaced circular perforation and was validated against available experimental results. Nonlinear seismic response of perforated SPSWs was studied through conducting a series of time history and incremental dynamic analysis to better understand the overall performance of the system when subjected to strong ground motions.