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Relevant bibliographies by topics / Stiffness-strength irregularity

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Academic literature on the topic 'Stiffness-strength irregularity'

Author: Grafiati

Published: 4 June 2021

Last updated: 6 February 2022

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Journal articles on the topic "Stiffness-strength irregularity"

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Sadashiva, Vinod K., Gregory A. MacRae, and Bruce L. Deam. "Effects of coupled vertical stiffness-strength irregularity due to modified interstorey height." Bulletin of the New Zealand Society for Earthquake Engineering 44, no. 1 (2011): 31–44. http://dx.doi.org/10.5459/bnzsee.44.1.31-44.

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Structures may have vertical stiffness or strength irregularity for many reasons. In many practical cases, a change in storey stiffness, results a change in strength at the same storey. In this paper, the effect of a change in interstorey height is quantified. In order to do this, relationships between storey stiffness and strength resulting due to a modified interstorey height for a few common lateral force resisting systems was considered. It was applied to simple shear-type structures of 3, 5, 9 and 15 storeys, assumed to be located in Wellington. All structures were considered to have a co

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Sadashiva, Vinod K., Gregory A. MacRae, and Bruce L. Deam. "Determination of structural irregularity limits." Bulletin of the New Zealand Society for Earthquake Engineering 42, no. 4 (2009): 288–301. http://dx.doi.org/10.5459/bnzsee.42.4.288-301.

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Structures may be irregular due to non-uniform distributions of mass, stiffness, strength or due to their structural form. For regular structures, simple analysis techniques such as the Equivalent Static Method, have been calibrated against advanced analysis methods, such as the Inelastic Dynamic Time-History Analysis. Most worldwide codes allow simple analysis techniques to be used only for structures which satisfy regularity limits. Currently, such limits are based on engineering judgement and lack proper calibration. This paper describes a simple and efficient method for quantifying irregul

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Ferraioli, Massimiliano, and Angelo Lavino. "Irregularity Effects of Masonry Infills on Nonlinear Seismic Behaviour of RC Buildings." Mathematical Problems in Engineering 2020 (June 29, 2020): 1–18. http://dx.doi.org/10.1155/2020/4086320.

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Despite extensive research studies, the seismic response of infilled reinforced concrete buildings remains an open problem due to both the complexity of the interaction between the infill and the frame and the large number of parameters involved. Thus, guidelines for both modelling and analysis are still lacking and the infill walls are normally treated as nonstructural components in seismic codes. However, it may be not conservative to neglect the influence of infills. In fact, the infill masonry walls may significantly affect the stiffness, strength, and energy dissipation capacity of RC bui

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ŞENTÜRK, Eyüp, Necati MERT, and Hüseyin KASAP. "H Tipi Plan Düzensizliği olan Betonarme Yapılarda Perde Yeri Seçiminin Yapısal Davranışa Etkisinin İrdelenmesi." Academic Perspective Procedia 2, no. 2 (2019): 247–56. http://dx.doi.org/10.33793/acperpro.02.02.37.

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Due to various architectural and structural requirements, irregularities in the structures are inevitable. In order to determine the behavior of the structure under the effect of the earthquake and to find the relevant cross-sectional effects, the regular or irregularity of the structure of the structure of the structure is significantly effective. Irregularities present in the design cause further strain of the carrier elements. With the increase in the number of floors in earthquake risk regions, curtains are needed in order to ensure sufficient rigidity and strength in the frame systems and

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HOCAOĞLU, Mehmet, Necati MERT, and Hüseyin KASAP. "U Tipi Plan Düzensizliği olan Betonarme Yapılarda Perde Yeri Seçiminin Yapısal Davranışa Etkisinin İrdelenmesi." Academic Perspective Procedia 2, no. 2 (2019): 284–94. http://dx.doi.org/10.33793/acperpro.02.02.43.

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Damage to structures may occur due to irregularities and other effects on reinforced concrete structures. Due to the earthquake zone, the buildings to be designed in our country should be designed according to the earthquake loads. In this study, the effects of the location and directions of the shear walls on the earthquake loads in the case of discontinuity in reinforced concrete buildings were examined. In this study, the effect of curtain placement on structural behavior in reinforced concrete buildings with U type plan irregularity was investigated.In order to determine the behavior of th

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Monika, Fanny, Berkat Cipta Zega, Hakas Prayuda, Martyana Dwi Cahyati, and Yanuar Ade Putra. "The Effect of Horizontal Vulnerability on the Stiffness Level of Reinforced Concrete Structure on High-Rise Buildings." Journal of the Civil Engineering Forum 6, no. 1 (2020): 49. http://dx.doi.org/10.22146/jcef.49387.

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Buildings have an essential function; they are a place for people to carry out various activities, such as social, economic, and religious activities. In a building construction plan, considering multiple factors from strength to architecture is necessary. The issue of limited land in some areas has resulted in the construction of vertical buildings, often known as high-rise buildings. High-rise building construction requires paying attention to various levels of vulnerabilities, especially for projects in earthquake-prone areas. In this study, the levels of vulnerability and vertical irregula

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Bhatt, Mahesh Raj, Prachand Man Pradhan, and Sudip Jha. "Study on The Effect of Soft Story on Infill RC Frames Under Seismic Effect." Kathmandu University Journal of Science, Engineering and Technology 13, no. 2 (2018): 79–91. http://dx.doi.org/10.3126/kuset.v13i2.21286.

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Construction practice of reinforced concrete (RC) frames infilled with unreinforced masonry is quite common now-days in urban cities in Nepal and elsewhere. Previous study shows the lateral load transfer mechanism is different than that of bare frames in infill buildings. Because of the unavoidable circumstances like elimination of central columns, elimination of infill wall in basement for parking purpose and reducing the size of frame members etc. may cause the particular story to be soft.In this study the infill RC frames with stiffness irregularity has been analysed with linear time histor

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J. Hamood, Mohammed, Layla A. Ghalib, and Ameer G. Abdalwahab. "Numerical Evaluation of Seismic Response of Asymmetrical Reinforced Concrete Frame Buildings." International Journal of Engineering & Technology 7, no. 4.20 (2018): 491. http://dx.doi.org/10.14419/ijet.v7i4.20.26249.

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Asymmetrical multi-storey buildings are almost unavoidable in modern structures due to various types of useful and architectural requirements. Latest earthquakes showed that irregular distribution of mass, stiffness and strength cause serious damage in building structural systems. This paper investigates the numerical simulation of buildings with plan irregularity and presents a case study to demonstrate the numerical evaluation of the seismic response of a three real plan-asymmetric reinforced concrete building tested at full scale at the European Laboratory for Structural Assessment of the J

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Hussein, Rafid, Sudharshan Anandan, Myranda Spratt, et al. "Effective elastic moduli of metal honeycombs manufactured using selective laser melting." Rapid Prototyping Journal 26, no. 5 (2020): 971–80. http://dx.doi.org/10.1108/rpj-12-2018-0311.

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Purpose Honeycomb cellular structures exhibit unique mechanical properties such as high specific strength, high specific stiffness, high energy absorption and good thermal and acoustic performance. This paper aims to use numerical modeling to investigate the effective elastic moduli, in-plane and out-of-plane, for thick-walled honeycombs manufactured using selective laser melting (SLM). Design/methodology/approach Theoretical predictions were performed using homogenization on a sample scale domain equivalent to the as-manufactured dimensions. A Renishaw AM 250 machine was used to manufacture h

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Stuart, Hannah, Shiquan Wang, Oussama Khatib, and Mark R. Cutkosky. "The Ocean One hands: An adaptive design for robust marine manipulation." International Journal of Robotics Research 36, no. 2 (2017): 150–66. http://dx.doi.org/10.1177/0278364917694723.

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Underactuated, compliant, tendon-driven robotic hands are suited for deep-sea exploration. The robust Ocean One hand design utilizes elastic finger joints and a spring transmission to achieve a variety of pinch and wrap grasps. Compliance in the fingers and transmission determines the degree of load-sharing among contacts and the hands’ ability to secure irregularly shaped objects. However, it can also decrease external grasp stiffness and acquisition reliability. SimGrasp, a flexible dynamic hand simulator, enables parametric studies of the hand for acquisition and pull-out tests with varying

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Dissertations / Theses on the topic "Stiffness-strength irregularity"

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Sadashiva, Vinod Kota. "Quantifying structural irregularity effects for simple seismic design." Thesis, University of Canterbury. Civil and Natural Resources Engineering, 2010. http://hdl.handle.net/10092/5309.

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This study was initiated to quantify the effect of different degrees of irregularity on structures designed for earthquake using simplified analysis. The types of irregularity considered were: (a) Vertical Irregularity • Mass • Stiffness -Strength (b) Horizontal (Plan) Irregularity • Diaphragm Flexibility Simple models were used to allow many analyses to be conducted in a relatively short time. For vertical irregularity studies, simple shear-type structures were designed according to the New Zealand design Standard, NZS1170.5, firstly as regular structures, and then they were redesigned as irr

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HOU, JR-GANG, and 侯志剛. "Effect of Vertical Irregularity due to Strength and Stiffness on Dynamic Structural Performance." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/07598638760134954051.

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碩士<br>國立臺灣科技大學<br>營建工程系<br>90<br>This study investigates the effect of vertical irregularity due to strength and stiffness on dynamic structural performance. The scope of this study includes two parts. The first part uses a two-story structural model to study the elastic dynamic performance of masonry-infilled structure. The results of this part show that both stiffness and distribution of masonry wall will affect structural dynamic characteristics and member forces. In addition to stiffness of columns, location of masonry walls, stiffness of masonry walls, and beam-to-column ratio are also im

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Book chapters on the topic "Stiffness-strength irregularity"

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Guo, Jack Wen Wei, and Constantin Christopoulos. "Mitigation of the Seismic Response of Structures with Vertical Stiffness and Strength Irregularity Using Supplemental Dampers." In Seismic Behaviour and Design of Irregular and Complex Civil Structures. Springer Netherlands, 2012. http://dx.doi.org/10.1007/978-94-007-5377-8_21.

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Conference papers on the topic "Stiffness-strength irregularity"

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Pong, Wenshen, and David Nesbet. "Design Implications of Structural Irregularity." In ASME 2002 Pressure Vessels and Piping Conference. ASMEDC, 2002. http://dx.doi.org/10.1115/pvp2002-1418.

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Irregular building designs present special problems to the structural engineer due to their uneven distributions of mass, stiffness, and strength. Because of these factors, irregular structures may have significantly different dynamic performance than a regular structure, which can lead to unanticipated force concentrations, deflections, and subsequent stresses on building members. Irregular building designs, while often more visually and architecturally interesting, are significantly more challenging to engineer for seismic loads. Discontinuities and irregularities in mass, configuration, and

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Chen, Xuelian, Xiaoming Tang, Shengqing Li, and Yuanda Su. "CHARACTERIZING CEMENT BOND QUALITY USING SLIP-INTERFACE THEORY AND COUPLING STIFFNESS." In 2021 SPWLA 62nd Annual Logging Symposium Online. Society of Petrophysicists and Well Log Analysts, 2021. http://dx.doi.org/10.30632/spwla-2021-0060.

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Cased-hole acoustic-wave modeling using the slip-interface theory is applied to cement bond evaluation, allowing for characterizing various bonding issues caused by poor bonding, lack of a cement, interface roughness and irregularity, micro-annulus, etc. The new theory models the interface between casing and cement (or cement and formation) as a slip boundary governed by normal and tangential coupling stiffness parameters. With the new theory and the stiffness parameters, we can model various wave phenomena for bond quality variation between the free-pipe and well bonded conditions. The modeli

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Sudhir, Aswathi, Abhilash M. Nagaraja, and Suhasini Gururaja. "Effective Mechanical Properties of Carbon-Carbon Composites." In ASME 2014 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/imece2014-36583.

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In recent times, composite materials have gained mainstream acceptance as a structural material of choice due to their tailorability and improved thermal, specific strength/stiffness and durability performance [1–3]. For high temperature applications, which include exit nozzle for rockets, leading edge for missiles, nose cones, brake pads etc. Carbon-Carbon composites (C/C composite) are found suitable [4–6]. Mechanical property estimation of C/C composites is challenging due to their highly heterogeneous microstructure. The highly heterogeneous microstructure consists of woven C-fibers, C-mat

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