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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
A complete guide to solving lateral load path problems—fully updated for current practices and regulations This thoroughly revised guide explains how to calculate the lateral forces to be transferred across multiple diaphragm and shear wall discontinuities. You will get step-by-step examples that offer progressive coverage—from very basic to very advanced illustrations of load paths in complicated structures. Written by a team of seasoned structural engineers and certified building official, The Analysis of Irregular Shaped Structures: Wood Diaphragms and Shear Walls, Second Edition contains comprehensive explanations of current topics, including cross laminated timber (CLT) which can be used in mass timber construction. You will get thorough coverage of up-to-date structural codes, requirements, and standards and includes newly developed structure types and new design solutions. Covers new topics of diaphragm solutions including CLT diaphragms and shear walls, a new method for calculating FTAO shear walls, and an expanded discussion on cantilever diaphragm design. Updated to reflect the most recent codes and standards, including, ASCE 7-16, 2021 IBC, and 2021 SDPWS with new CLT diaphragm and shear wall design requirements and guidelines. Written by a team of experienced structural engineers and certified building official.
* The best-selling text and reference on wood structure design * Incorporates the latest National Design Specifications, the 2003 International Building Code and the latest information on wind and seismic loads
The tension structures discussed in this book are predominantly roofing forms created from pre-stressed cable nets, cable trusses, and continuous membranes (fabric structures). A unique feature in their design is "form-finding" - an interactive process of defining the shape of a structure under tension. The book discusses the role of stable minimal surfaces (minimum energy forms occurring in natural objects, such as soap films) in finding optimal shapes of membrane and cable structures. The discussion of form-finding is extended to structural forms whose shape is supposedly known, such as suspension bridge cables.
This text provides a concise and practical guide to timber design, using both the Allowable Stress Design and the Load and Resistance Factor Design methods. It suits students in civil, structural, and construction engineering programs as well as engineering technology and architecture programs, and also serves as a valuable resource for the practicing engineer. The examples based on real-world design problems reflect a holistic view of the design process that better equip the reader for timber design in practice. This new edition now includes the LRFD method with some design examples using LRFD for joists, girders and axially load members. is based on the 2015 NDS and 2015 IBC model code. includes a more in-depth discussion of framing and framing systems commonly used in practice, such as, metal plate connected trusses, rafter and collar tie framing, and pre-engineered framing. includes sample drawings, drawing notes and specifications that might typically be used in practice. includes updated floor joist span charts that are more practical and are easy to use. includes a chapter on practical considerations covering topics like flitch beams, wood poles used for footings, reinforcement of existing structures, and historical data on wood properties. includes a section on long span and high rise wood structures includes an enhanced student design project
Analytical models of wood-frame shear walls and diaphragms for use in monotonic, quasi-static (cyclic), and dynamic analyses are developed in this thesis. A new analytical model is developed to accurately represent connections between sheathing panels and wood framing members (sheathing-to-framing connections) in structural analysis computer programs. This new model represents sheathing-to-framing connections using an oriented pair of nonlinear springs. Unlike previous models, the new analytical model for sheathing-to-framing connections is suitable for both monotonic, cyclic, or dynamic analyses. Moreover, the new model does not need to be scaled or adjusted. The new analytical model may be implemented in a general purpose finite element program, such as ABAQUS, or in a specialized structural analysis program, such as CASHEW. The analytical responses of several shear walls and diaphragms employing this new model are validated against measured data from experimental testing. A less complex analytical model of shear walls and diaphragms, QUICK, is developed for routine use and for dynamic analysis. QUICK utilizes an equivalent single degree of freedom system that has been determined using either calibrated parameters from experimental or analytical data, or estimated sheathing-to-framing connection data. Application of the new analytical models is illustrated in two applications. In the first application, the advantages of diaphragms using glass fiber reinforced polymer (GFRP) panels in conjunction with plywood panels as sheathing (hybrid diaphragms) are presented. In the second application, the response of shear walls with improperly driven (overdriven)nails is determined along with a method to estimate strength reduction due to both the depth and the percentage of total nails overdriven.
The Rapid Visual Screening (RVS) handbook can be used by trained personnel to identify, inventory, and screen buildings that are potentially seismically vulnerable. The RVS procedure comprises a method and several forms that help users to quickly identify, inventory, and score buildings according to their risk of collapse if hit by major earthquakes. The RVS handbook describes how to identify the structural type and key weakness characteristics, how to complete the screening forms, and how to manage a successful RVS program.
The leading wood design reference—thoroughly revised with the latest codes and data Fully updated to cover the latest techniques and standards, the eighth edition of this comprehensive resource leads you through the complete design of a wood structure following the same sequence used in the actual design/construction process. Detailed equations, clear illustrations, and practical design examples are featured throughout the text. This up-to-date edition conforms to both the 2018 International Building Code (IBC) and the 2018 National Design Specification for Wood Construction (NDS). Design of Wood Structures-ASD/LRFD, Eighth Edition, covers:•Wood buildings and design criteria•Design loads•Behavior of structures under loads and forces•Properties of wood and lumber grades•Structural glued laminated timber•Beam design and wood structural panels•Axial forces and combined loading•Diaphragms and shearwalls•Wood and nailed connections•Bolts, lag bolts, and other connectors•Connection details and hardware•Diaphragm-to-shearwall anchorage•Requirements for seismically irregular structures•Residential buildings with wood light frames