Concrete Design for the Civil PE and Structural SE Exams, 2nd Ed
Author: C. Dale Buckner PhD PE | Size: 1.56 MB | Format:PDF | Publisher: Professional Publications | Year: 2014 | pages: 182 | ISBN: ISBN-10: 1591264731 ISBN-13: 978-1591264736
An In-Depth Review of Concrete Design Methods and Standards
Concrete Design for the Civil PE and Structural SE Exams, Second Edition
An In-Depth Review of Concrete Design Methods and Standards
Concrete Design for the Civil PE and Structural SE Exams presents the concrete design and analysis methods most needed by civil and structural engineering students. The book’s 12 chapters provide a concise but thorough review of concrete theory, code application, design principles, and structural analysis. The 51 example problems demonstrate how to apply concepts, codes, and equations, and over 40 figures and tables provide essential support material. A complete nomenclature list defines the industry-standard variables and symbols used in each chapter.
This book includes code references to familiarize you with exam-adopted codes, such as ASCE7 and ACI 318. It also includes 35 multiple-choice problems and 2 scenario-based design problems to enhance your problem-solving skills. Each problem’s complete solution lets you check your solving approach. On exam day, you can use this book’s thorough index to quickly locate important codes and concepts.
Topics Covered
Columns and Compression Members
Continuous One-Way Systems
Design Specifications
Development of Reinforcement
Flexural Design of Reinforced Concrete Beams
Materials
Prestressed Concrete
Seismic Design of Reinforced Concrete Members
Serviceability of Reinforced Concrete Beams
Shear Design of Reinforced Concrete
Two-Way Slab Systems
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Seismic Performance Assessment and Probabilistic Repair Cost Analysis of Precast Concrete Cladding Systems for Multistory Buildings
Author: Hunt, Jeffrey Patrick | Size: 10.1 MB | Format:PDF | Quality:Unspecified | Publisher: University of California, Berkeley | Year: 2010 | pages: 302
Analytical and experimental tests have shown that the seismic response of multistory moment-frame structures with precast concrete cladding in moderate to severe earthquakes is
significantly influenced by the cladding system. Moreover, considerable damage to the cladding system components from recent earthquakes has been reported. The cladding system can account for a significant portion of the initial cost of a building, often as much as 20%. However, inseismic analysis and design, engineers typically ignore the additional stiffness and damping thatthe cladding system may provide, which could prove to be beneficial or detrimental to the building’s seismic performance. Most of the efforts in nonlinear dynamic modeling focus on representing the behavior of structural elements and do not include the effects of non-structural elements such as cladding systems. The purpose of the research discussed in this dissertation is to study the effect that the cladding system has on the structural response of multistory buildings,
to develop analytical equations to estimate the seismic demands in the cladding connections, tocalculate the probability of failure of typical cladding connections, and to determine the postearthquakerepair costs and repair times of typical cladding systems. The nine-story LA SAC steel moment-frame building is selected as the study building,and a two-dimensional, nonlinear model is developed of the bare-frame structure in OpenSees.
The steel moment-resisting frame of the bare-frame structure is modeled using nonlinear force beam-column line elements capable of representing distributed plasticity along their length. The frame connections are reduced-beam section (RBS) moment connections, and their modeled cyclic moment-rotation behavior is based on experimental test results of the connection. Analytical models of three different precast cladding designs are applied to the bare-framestructure to study their effect on the building’s seismic response. The three cladding designs represent common systems used in regular multistory buildings in modern construction. The first
cladding design, cladding type C1, consists of alternating horizontal bands of spandrel panels (covering the exterior floor beams) and glazing. The spandrel panels extend the full width of the bay. The second cladding design, cladding type C2, consists of spandrel panels that extend the full height of the story with rectangular window openings “punched” into their surface. The third cladding design, cladding type C3, consists of the same spandrel panels as in type C1 with column cover panels spanning between adjacent spandrel panels. The force-deformation curves of the connections used in the model are obtained from experimental tests of push-pull
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Propagating Waves in the Steel, Moment-Frame Factor Building Recorded during Earthquakes
Author: Monica D. Kohler, Thomas H. Heaton, and Samuel C. Bradford | Size: 2.6 MB | Format:PDF | Quality:Unspecified | Publisher: Bulletin of the Seismological Society of America, Vol. 97, No. 4, pp. 1334–1345, August 2007, doi: 10.1785/0120060148 | Year: 2007 | pages: 13
Abstract Wave-propagation effects can be useful in determining the system identification of buildings such as the densely instrumented University of California, Los Angeles, Factor building. Waveform data from the 72-channel array in the 17-story moment-resisting steel frame Factor building are used in comparison with finite element calculations for predictive behavior. The high dynamic range of the 24-bit digitizers allows both strong motions and ambient vibrations to be recorded withreasonable signal-to-noise ratios. A three-dimensional model of the Factor building has been developed based on structural drawings. Observed displacements for 20 small and moderate, local and regional earthquakes were used to compute the impulse response functions of the building by deconvolving the subbasement records as representative input motions at its base. The impulse response functions were then stacked to bring out wave-propagation effects more clearly. The stacked data are used as input into theoretical dynamic analysis simulations of the building’s response.
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Urban centers are increasingly becoming the locus of enterprise, innovation, and population. This pull toward the center of cities has steadily elevated the importance of these areas. Growth has necessarily spawned new construction. Consequently, modern buildings are often constructed alongside legacy structures, new deep basements are constructed alongside existing shallow foundations, and city blocks composed of a variety of building types result. The underlying soil, foundation, and superstructure of each of these buildings can interact and combine to yield unique seismic responses. Since the seminal work of researchers such as Luco and Contesse (1973) and Wong and Trifunac (1975), researchers have investigated the effects of soil-structure interaction (SSI). This phenomenon refers to the interaction between a single building, its foundation, and the
underlying soil during a seismic event. However, as the trend toward urbanization continues, a shortcoming of this conventional SSI approach is that in reality, a structure will almost certainly be located near other structures in metropolitan areas. In this line of research, the interaction of multiple, adjacent buildings during a seismic event, a phenomenon known as structure-soil-structure interaction (SSSI), is investigated. This topic does not yet command the level of attention given to SSI. However, SSSI has the potential to be significantly detrimental or beneficial, depending on the configuration and dynamic properties of the buildings and their foundations in dense urban environments. It is important to understand SSSI effects so that earthquake engineers can make informed decisions about the design and construction of structures in increasingly dense urban areas.
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we are at first say sorry for about 48 hours down in forum due to major update in forum.
we were working to updating forum during last month. and now we release first view of it.
new template (CivilEA V4.0) is released with new updated forum and now you can see forum in CivilEA V4.0 template. we tried to design new template similiar to previous one.
we want you to tell us your comment and suggestion about new template and new feature on forum here. please do not post thank you/good/... post here only if you have comment or suggestion post here.
we are working on forum to improve it. so at this week forum will be down temporary for upgrading it.
upgrading may be long 24~72 hours.
thanks for your patience.
Article/eBook Full Name: Soil-Machine Interactions: A Finite Element Perspective
Author(s): Jie Shen
Publish Date: March 10, 1998
ISBN: 9780824700812
Published By: CRC Press
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Aiming to improve work efficiency in such areas as tillage in agriculture, earth-moving in civil engineering, and tunnel-making in sea-bed operations, this work offers an introduction to Finite Element Method (FEM) analysis of soil-machine systems. It explains the advantage of FEM's numerical approach over traditional analytical and empirical methods of dealing with complex factors from nonlinear mechanical behaviour to geometric configurations.
I've created 3 spreadsheets for the analysis of laterally loaded elastic piles, which I'm sharing:
- Elastic springs;
- Elasto-plastic springs (VBA);
- Elasto-plastic springs (SAP2000 v17 OAPI).
These are totally open source and free. Use them, change them, pass them around if you like. I welcome all feedback for their improvement.
The code is definitely not optimized nor clean as I'm no programmer, but these have already been checked and validated with other published solutions. Nevertheless, be careful when using them and always remember to manual check your solutions.
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