Download or read book Behavior of Unbounded Post tensioned Masonry Walls written by Reza Hassanli and published by Springer. This book was released on 2018-08-07 with total page 269 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book reports on a comprehensive analytical, experimental and numerical study on the flexural response of post-tensioned masonry walls under in-plane loads. It explores an important mechanism in this new generation of structural walls, called “Self-centering”. This mechanism can reduce residual drifts and structural damage during earthquake ground motion, and is particularly favorable for structures which are designed for immediate occupancy performance levels. The book reports on the development and verification of a finite element model of post-tensioned masonry walls. It describes a detailed parametric study to predict the strength of post-tensioned masonry walls. New design methodologies and expressions are developed to predict the flexural strength and force-displacement response of post-tensioned masonry. Experimental study is carried out to better understand the behavior of post-tensioned masonry walls and also to evaluate the accuracy of the proposed design procedure and expressions. The book also includes an introduction to current research on unbounded post-tensioned masonry walls, together with an extensive analysis of previously published test results.
Download or read book Behavior of Unbonded Post tensioned Masonry Walls written by Reza Hassanli and published by . This book was released on 2015 with total page 319 pages. Available in PDF, EPUB and Kindle. Book excerpt: Masonry is one of the most widely used construction materials in the world. Incorporating post-tensioning into masonry offers a simple and cost-effective structural system. The post-tensioning techniques can be applied to different types of masonry members as either bonded or unbonded reinforcement. Recent research has demonstrated that unbonded post-tensioned structural elements including concrete walls, concrete columns, and masonry walls can display high ductility levels while withstanding high levels of seismic loads. When an unbonded post-tensioned masonry wall (PT-MW) is subjected to a lateral in-plane load, a single horizontal crack forms at the wall-foundation interface. The restoring nature of the post-tensioning (PT) force returns the wall to its original vertical position and minimizes the residual displacement. This behavior is specifically favorable for structures which are designed for immediate occupancy performance levels. The rocking mechanism of PT-MWs results in plastic deformation concentrated at the toe of the wall which can be repaired with minimal cost. While in members having bonded PT bars, the force developed in PT bars can be determined considering strain compatibility and equilibrium; for members having unbonded PT bars, theoretical evaluation of the stress developed in PT bars is challenging as it depends on the elongation of the unbonded PT bar. This study aims to get a better understanding of the in-plane behavior of PT-MWs.
Download or read book Out of plane Behavior of Slender Post tensioned Masonry Walls Constructed Using Restrained Tendons written by Christopher Robert Drake and published by . This book was released on 2004 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Flexural Behavior of Post tensioned Masonry Walls Subjected to Out of plane Loads written by Roberto Rodriguez and published by . This book was released on 1994 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mechanics and Behavior of Slender Post tensioned Masonry Walls to Transverse Loading written by Jennifer Renae Bean Popehn and published by . This book was released on 2007 with total page 616 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Performance of Post Tensioned Clay Brick Masonry with Openings written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation aims to advance the understanding of unbonded post-tensioned masonry wall systems. Previous research has shown that unbonded post-tensioned masonry walls can adequately resist in-plane loading but their possible use in regions of high seismic activity has not been widely accepted. The research described in this dissertation focuses primarily on clay brick masonry. The first study is on the in-plane cyclic behavior of unbonded post-tensioned masonry walls with openings. Openings can interrupt the standard path of the compression strut. The compression strut is how unbonded post-tensioned masonry walls distribute the lateral load to the foundation, and without it the wall can become unstable. The results show that the size and location of the opening has a major effect of the overall response of the wall. As the opening size increases the compression strut becomes more unstable. Experimental studies involved the construction and testing of three walls. A parametric study was conducted to determine the effect of opening size and aspect ratio on the behavior of unbonded post-tensioned masonry walls with openings. Several tables are proposed for the initial design of these walls depending on the opening size and aspect ratio of the wall. The latter part of the dissertation focuses on the Direct Displacement-Based Design (DDBD) of unbonded post-tensioned clay brick masonry walls. A unique problem of the use of clay brick masonry walls arose and was studied. Because clay brick masonry and the concrete foundation's Young moduli are different, the interaction between the two surfaces was analyzed. It is shown that the foundation locally confines the clay brick masonry, thereby increasing its compressive strength. Without including this confinement, effect the lateral resisting strength is greatly underestimated. Previous methods are modified to predict the compressive strength of clay brick masonry at the wall/foundation interface. The method is verified a.
Download or read book Post tensioned Single Wythe Concrete Masonry Walls written by William Peter Ostag and published by . This book was released on 1986 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Behavior of Post tensioned Hollow core Masonry Walls Subjected to Out of plane Loading written by Joseph M. Allen and published by . This book was released on 1988 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Civil Engineering and Urban Planning IV written by Yuan-Ming Liu and published by CRC Press. This book was released on 2016-10-28 with total page 1010 pages. Available in PDF, EPUB and Kindle. Book excerpt: Civil Engineering and Urban Planning IV includes the papers presented at the 4th International Conference on Civil Engineering and Urban Planning (CEUP 2015, Beijing, China, 25-27 July 2015). The contributions from experts and world-renowned scientists cover a wide variety of topics: - Civil engineering;- Architecture and urban planning; - Transpor
Download or read book Brick and Block Masonry written by Claudio Modena and published by CRC Press. This book was released on 2016-11-03 with total page 2558 pages. Available in PDF, EPUB and Kindle. Book excerpt: Brick and Block Masonry - Trends, Innovations and Challenges contains the lectures and regular papers presented at the 16th International Brick and Block Masonry Conference (Padova, Italy, 26-30 June 2016). In an ever-changing world, in which innovations are rapidly implemented but soon surpassed, the challenge for masonry, the oldest and most traditional building material, is that it can address the increasingly pressing requirements of quality of living, safety, and sustainability. This abstracts volume and full paper USB device, focusing on challenges, innovations, trends and ideas related to masonry, in both research and building practice, will proof to be a valuable source of information for researchers and practitioners, masonry industries and building management authorities, construction professionals and educators.
Download or read book Post Tensioned Clay Brick Masonry Walls for Modular Housing in Seismic Regions written by and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: From past research post-tensioned concrete masonry walls have performed well due to in-plane loading, yet despite the advantage of being more aesthetically pleasing, post-tensioned clay brick masonry walls have not been investigated under this loading. Five half scale structural specimens using this system were constructed and tested, and the results from these tests plus a proposed force-displacement analysis procedure are included herein. The results show that post-tensioned clay brick masonry walls are well suited for seismic regions when the walls are grouted and unbonded, and the presence of confinement plates in the compression region greatly enhances the overall performance of the wall. In addition, the force-displacement analysis shows that in order to account for the overall behavior of the wall, cyclic degradation characteristics must be included.
Download or read book Experimental Study of Mortarless Post tensioned Masonry Walls and Development of Design Guidelines written by Hiroki Ota and published by . This book was released on 2011 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Dynamic Behaviour of Post tensioned Masonry Colums written by Selassie I. K. Davis and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Post tensioned Concrete Masonry Walls Subjected to Uniform Lateral Loading written by Gabriel Gadison Aridru and published by . This book was released on 1992 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Behavior of Reinforced Concrete Masonry Walls Subjected to Combined Axial Loading and Out of plane Bending written by Kun Hu and published by . This book was released on 2005 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Out of plane Behavior of Surface reinforced Masonry Walls written by and published by . This book was released on 2002 with total page 351 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Post tensioned Single Wythe Concrete Masonry Walls written by William Peter Ostag and published by . This book was released on 1986 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
