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Dissertations / Theses on the topic 'Buildings vibration'

Author: Grafiati

Published: 4 June 2021

Last updated: 20 February 2023

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1

Forsberg, Alexander, and Aras Wali. "Vibration reduction over junctions in buildings." Thesis, KTH, Marcus Wallenberg Laboratoriet MWL, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-302260.

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Structure borne sound can travel multiple paths from one office to another and choosing to sound insulate a specific building element can be difficult since all the building elements are connected together and form a coupled system. The current approach by engineers when investigating transmission paths between spaces in a building is using a computer model and assuming that the junctions are firmly clamped or free. Standardized measuring methods includes a large amount of measuring points on each side of a junction and excitation over large areas. This study intends to investigate if it is po

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2

Galbrun, Laurent. "Vibration transmission in timber-framed buildings." Thesis, Heriot-Watt University, 2004. http://hdl.handle.net/10399/337.

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3

Edalath, Sanooj Sadique. "Fuzzy Logic Seismic Vibration Control of Buildings." University of Cincinnati / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1335462916.

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4

Boffa, John. "Model Reduction of Large Structural Systems for Active Vibration Control." University of Technology, Sydney. Faculty of Engineering, 2006. http://hdl.handle.net/2100/338.

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This thesis studies the applicability of the Dynamic model reduction method that is used for direct plant order reduction in the active vibration control of large and flexible structures. A comparison of the performances between the reduced models produced by the Dynamic model reduction method and those obtained by other common model reduction methods such as the Guyan method, and the Mode-displacement method have been carried out. By using a full analytical model of a twenty storey building as the reference, each three degrees of freedom model was compared by computer simulation. The open-lo

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Boffa, John. "Model reduction of large structural systems for active vibration control /." Electronic version, 2002. http://adt.lib.uts.edu.au/public/adt-NTSM20060317.113054/index.html.

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6

Dominguez, Morales Martha. "Fundamental period of vibration for reinforced concrete buildings." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape4/PQDD_0018/MQ58450.pdf.

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7

Zhou, Li. "Vibration control of buildings using smart magnetorheological dampers /." View Abstract or Full-Text, 2002. http://library.ust.hk/cgi/db/thesis.pl?CIVL%202002%20ZHOU.

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Thesis (Ph. D.)--Hong Kong University of Science and Technology, 2002.<br>Includes bibliographical references (leaves 163-177). Also available in electronic version. Access restricted to campus users.

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8

Wang, Yi. "Damage assessment in asymmetric buildings using vibration techniques." Thesis, Queensland University of Technology, 2018. https://eprints.qut.edu.au/120475/1/Yi_Wang_Thesis.pdf.

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This research presents a step forward in the area of structural health monitoring by developing the scientific basis for a method to detect and locate damage in asymmetric building structures accurately and efficiently. The method is based on the changes in the vibration characteristics of asymmetric buildings such as natural frequencies and associated mode shapes. The thesis first investigated the difference in vibration behavior between symmetric and asymmetric buildings and compared the capability of different damage detection methods that uses the vibration characteristics. Then a modified

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9

Xu, Y. L. (You Lin) 1952. "Vibration control of wind-excited tall/slender structures." Phd thesis, School of Civil and Mining Engineering, 1991. http://hdl.handle.net/2123/9458.

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10

Howarth, Henrietta Victoria Carmel. "Annoyance caused by railway vibration and noise in buildings." Thesis, University of Southampton, 1989. https://eprints.soton.ac.uk/52250/.

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This thesis is concerned with the annoyance caused by railway-induced building vibration and railway noise. A review of previous studies was conducted to examine current knowledge. The review enabled identification of areas in which there was insufficient information on which to base a prediction of the reaction to railway vibration and noise in buildings. Deficiencies in current knowledge formed the basis of a programme of experimental work which was conducted to investigate how the annoyance produced by railway-induced building vibration is affected by the number of trains, the vibration mag

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11

Talbot, James P. "On the performance of base-isolated buildings : a generic model." Thesis, University of Cambridge, 2002. https://www.repository.cam.ac.uk/handle/1810/244274.

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Ground-borne vibration has existed ever since the development of urban road and rail networks. Vibration generated by the moving traffic propagates through the ground and into buildings, resulting in unacceptable levels of internal noise and vibration. A common solution to this increasingly significant problem is the base-isolation of buildings by incorporating vibration isolation bearings between the buildings and their foundations. This technique has been employed for over forty years but the exact performance of base isolation remains uncertain. This dissertation is concerned with the devel

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12

Rafezy, Behzad. "Global vibration analysis of symmetric and asymmetric high rise buildings." Thesis, Cardiff University, 2004. http://orca.cf.ac.uk/55960/.

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This thesis presents two global analysis approaches to the calculation of the natural frequencies of high rise buildings. The structures are proportional and their component members are repeated at each storey level unless there is a step change of properties. Within this scope many geometric configurations can be encompassed, ranging from uniform structures with doubly symmetric floor plans to doubly asymmetric ones comprising plane frame and wall structures running in two orthogonal directions. The first method utilises a continuum element approach in which the structure is divided into segm

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13

Steel, J. A. "Structural vibration transmission in framed buildings using statistical energy analysis." Thesis, Heriot-Watt University, 1990. http://hdl.handle.net/10399/889.

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14

Cryer, David Patrick. "Modelling of vibration in buildings with application to base isolation." Thesis, University of Cambridge, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.336535.

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15

Ming, Ruisen. "The measurement of structural wave intensity applied to buildings." Thesis, Heriot-Watt University, 1993. http://hdl.handle.net/10399/1470.

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16

Jacobsen, Erica Dawn. "Forced Vibration Testing and Analysis of Pre- and Post- Retrofit Buildings." DigitalCommons@CalPoly, 2011. https://digitalcommons.calpoly.edu/theses/531.

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ABSTRACT Forced Vibration Testing and Analysis of Pre- and Post- Retrofit Buildings Erica Dawn Jacobsen The primary goal of the thesis was to detect the retrofit through vibration testing of both buildings. The secondary goal focused on correctly identifying the behavior of the building through FVT, comparing that behavior to computational model predictions, and determining the necessary level of detail to include in the computational modeling. Forced vibration testing (FVT) of two stiff-wall/flexible-diaphragm buildings yielded natural frequencies and mode shapes for the two buildings. The

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17

Anthony, David. "Movers and shakers : the affects of vibrations on historic structures." Virtual Press, 1997. http://liblink.bsu.edu/uhtbin/catkey/1041912.

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Preservationists and historic sites managers need to be aware of the affects of excess man-made vibrations on historic structures. The purpose of this creative project is to examine those affects and identify some methods to mitigate them. To write this project, it was necessary to search through available literature identifying past research and studies on this subject. Research was culled from various sources examining the affects of vibrations on new and historic structures and are presented here in one volume.The affects of vibrations on historic structures is not a subject that is well re

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18

Bolter, J. D. "Active damping of framework vibrations." Thesis, University of Leeds, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.382018.

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19

揚毅 and Ngai Yeung. "Viscous-damping walls for controlling wind-induced vibrations in buildings." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2000. http://hub.hku.hk/bib/B31242637.

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20

Al, Haddad Aiham Emil. "Wind-induced Vibration Control of Tall Timber Buildings : Improving the dynamic response of a 22-storey timber building." Thesis, Linnéuniversitetet, Institutionen för byggteknik (BY), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-57005.

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Plans for construction of the tallest residential timber building has driven the Technical Research Institute of Sweden (SP), Linnaeus University, Växjö and more than ten interested companies to determine an appropriate design for the structure. This thesis presents a part of ongoing research regarding wind-induced vibration control to meet serviceability limit state (SLS) requirements. A parametric study was conducted on a 22-storey timber building with a CLT shear wall system utilizing mass, stiffness and damping as the main parameters in the dynamic domain. Results were assessed according t

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21

Hafeez, Ghazanfarah. "Dynamic Characteristics of Light-frame Wood Buildings." Thesis, Université d'Ottawa / University of Ottawa, 2017. http://hdl.handle.net/10393/36223.

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This research project deals with dynamic field testing of light-frame wood buildings with wood based shear walls. The primary objective of the investigation is to evaluate the code formula for estimating light wood frame building’s fundamental period, through intensive field testing and numerical modelling. The project also aims to propose an alternative simplified rational approach where applicable. The thesis provides insight to the ambient vibration testing procedures of light-frame wood buildings and explains the protocol adopted for the current research program. Ambient vibration (AV) fi

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22

Ticona, A. M., M. A. Rosales, and J. D. Orihuela. "Correction coefficients of distortion and vibration period for buildings due to soil-structure interaction." OP Publishing Ltd, 2020. http://hdl.handle.net/10757/656571.

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The present research analyzed the influence of the soil structure interaction (SSI) in buildings, varying geotechnical parameters and height, considering 3 international codes. The responses obtained from the structures taking into account the SSI, were compared with the responses of fixed-base buildings, being the main control variables: the period and the drift. It was determined that the estimated range in which the period of the structure increases is from 30 to 98%, demonstrating the influence of considering soil flexibility. Due to the variability of the responses obtained, an adjustment

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23

Alajlouni, Sa'ed Ahmad. "Energy-based Footstep Localization using Floor Vibration Measurements from Accelerometers." Diss., Virginia Tech, 2017. http://hdl.handle.net/10919/103466.

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This work addresses the problem of localizing an impact in a dispersive medium (waveguide) using a network of vibration sensors (accelerometers), distributed at various locations in the waveguide, measuring (and detecting the arrival of) the impact-generated seismic wave. In particular, the last part of this document focuses on the problem of localizing footsteps using underfloor accelerometers. The author believes the outcomes of this work pave the way for realizing real-time indoor occupant tracking using underfloor accelerometers; a system that is tamper-proof and non-intrusive compared

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24

Al-Rumaih, Wail Saad. "A novel tuned visco-elastic damper for floor vibration abatement." Dayton, Ohio : University of Dayton, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1245387294.

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25

Erisen, Zuhtu Eren. "Frequency Domain Optimization Of Dry Friction Dampers Used For Earthquake Vibration Damping Of Buildings." Master's thesis, METU, 2012. http://etd.lib.metu.edu.tr/upload/12614134/index.pdf.

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There are many active and passive vibration control techniques to reduce the effect of energy on structures which emerges during an earthquake and reduce the displacement of buildings that is caused by ground acceleration. Main advantage of passive vibration control techniques over active vibration control techniques is<br>no external power or a sensor is required for passive vibration control devices (PVCDs) and it results in lower installation and maintenance costs. However, PVCDs require a predefined optimum damping ratio and optimum damping distribution along the structure since they are n

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26

Cook, Christopher R. "Methods to improve the vibration characteristics of joist supported floor systems." Thesis, Virginia Tech, 1990. http://hdl.handle.net/10919/42157.

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27

Andreozzi, Michele. "Seismic protection of buildings of historical/cultural interest through the use of vibrating barriers." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2019.

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Recent earthquake events pointed out the problematic of protecting existing buildings from the catastrophic effects of earthquakes. The current strategies for vibration are successfully employed in the design of new structures; on the other hand, they are rarely used for protecting existing buildings, because they generally require substantial alteration of the original structure. In this thesis, a novel device called vibrating barrier, (ViBa), is implemented for the seismic protection of an historical building: the Bell Tower of the Messina Cathedral. This device is able to reduce the dynamic

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28

Malushte, Sanjeev R. "Seismic response of structures with Coulomb damping." Diss., Virginia Polytechnic Institute and State University, 1989. http://hdl.handle.net/10919/54235.

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The usefulness of Coulomb (friction) damping in earthquake-resistant design of structures is examined by studying the seismic response characteristics of structures with various arrangements of sliding interfaces. First, three basic arrangements are studied for their effectiveness in reducing lateral displacements of the supporting frame, accelerations of the floor slab and the resulting secondary floor spectra. These are: (1) slab sliding system which has the sliding interface between the floor slab and the supporting frame, (2) double sliding system which consists of sliding interfaces at bo

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29

Goncalves, Rafael dos Santos. "Applications of Vibration-Based Occupant Inference in Frailty Diagnosis through Passive, In-Situ Gait Monitoring." Thesis, Virginia Tech, 2021. http://hdl.handle.net/10919/104868.

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This work demonstrates an application of Vibration-Based Occupant Inference (VBOI) in frailty analysis. The rise of both Internet-of-Things (IoT) and VBOI provide new techniques to perform gait analysis via footstep-induced vibration which can be analyzed for early detection of human frailty. Thus, this work provides an application of VBOI to passively track gait parameters (e.g., gait speed) using floor-mounted accelerometers as opposed to using a manual chronometer as it is commonly performed by healthcare professionals. The first part of this thesis describes the techniques used for footst

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30

Azimi, Mohsen. "Design of Structural Vibration Control Using Smart Materials and Devices for Earthquake-Resistant and Resilient Buildings." Thesis, North Dakota State University, 2017. https://hdl.handle.net/10365/28588.

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Major earthquakes in recent years have highlighted the big concern of modern seismic design concept for the resilience of buildings. The overall goals of this thesis aim to design structural vibration control using smart materials and devices and to elucidate the factors determining their robustness, feasibility, and adaptability for earthquake-resistant and resilient buildings. The study mainly includes a) integrated wavelet-based vibration control with damage detection; b) shape memory alloy to eliminate the residual deformations; c) a mass damper for highly irregular tall buildings; and d)

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31

Kessler, Ellis Carl. "A Physically Informed Data-Driven Approach to Analyze Human Induced Vibration in Civil Structures." Diss., Virginia Tech, 2021. http://hdl.handle.net/10919/104020.

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With the rise of the Internet of Things (IoT) and smart buildings, new algorithms are being developed to understand how occupants are interacting with buildings via structural vibration measurements. These vibration-based occupant inference algorithms (VBOI) have been developed to localize footsteps within a building, to classify occupants, and to monitor occupant health. This dissertation will present a three-stage journey proposing a path forward for VBOI research based on physically informed data-driven models of structural dynamical systems. The first part of this dissertation presents a

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32

Moragaspitiya, Himenshu Nalindrajith. "Interactive axial shortening of columns and walls in high rise buildings." Thesis, Queensland University of Technology, 2011. https://eprints.qut.edu.au/48026/1/Himenshu_Moragaspitiya_Thesis.pdf.

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Concrete is commonly used as a primary construction material for tall building construction. Load bearing components such as columns and walls in concrete buildings are subjected to instantaneous and long term axial shortening caused by the time dependent effects of "shrinkage", "creep" and "elastic" deformations. Reinforcing steel content, variable concrete modulus, volume to surface area ratio of the elements and environmental conditions govern axial shortening. The impact of differential axial shortening among columns and core shear walls escalate with increasing building height. Differen

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Demirok, Emel. "3d-fe Model Field-calibration And Rating Studies On Existing R/c Buildings." Master's thesis, METU, 2006. http://etd.lib.metu.edu.tr/upload/12607223/index.pdf.

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Dynamic instrumentation and a series of ambient vibration tests were performed on a four storey strengthened R/C building within the scope of this study. Traffic load and wind load were accepted as natural dynamic loads and the vibrations were recorded by sensitive accelerometers.For that study, 12 uniaxial, 1 triaxial accelerometers and a 15 channel data logger system were used. Four sets of dynamic measurements were recorded over a period of 6 months. Recorded readings were analyzed using UPC, PC and CVA algorithms and Artemis software. The natural freqeuncies, mode shape of the tested build

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Nasser-Barakat, Fatima. "Automatic modal variation tracking via a filter-free random decrement technique application to ambient vibration recordings on high-rise buildings." Thesis, Université Grenoble Alpes (ComUE), 2015. http://www.theses.fr/2015GREAT044/document.

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Cette thèse propose une nouvelle approche pour surveiller automatiquementles variations des fréquences et des taux d’amortissement des batiments de grande hauteursoumis à des vibrations ambiantes. L’approche vise à relever simultanément avec les défissuivants: signaux multi-composants enregistrées sur les bâtiments mentionnés ci-dessusavec des réponses impulsionnelles ayant des modes de fréquences rapprochées, des amplitudesfaibles, exponentielles et amorties noyées dans des bruits additifs élevés. La méthoderepose sur l’application de la technique de décrément aléatoire directement sur le sig

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Remillieux, Marcel C. "Development of a Model for Predicting the Transmission of Sonic Booms into Buildings at Low Frequency." Diss., Virginia Tech, 2010. http://hdl.handle.net/10919/27543.

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Recent progresses by the aircraft industry in the development of a quieter supersonic transport have opened the possibility of overland supersonic flights, which are currently banned by aviation authorities in most countries. For the ban to be lifted, the sonic booms the aircraft generate at supersonic speed must be acceptable from a human-perception point of view, in particular inside buildings. The problem of the transmission of sonic booms inside buildings can be divided in several aspects such as the external pressure loading, structure vibration, and interior acoustic response. Past inves

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36

Massari, Elisa. "Dynamic characterisation of four nine-story large-panel R.C. buildings in Bishkek (Kyrgyzstan): A comparison between experimental ambient vibration analysis and numerical finite element modeling." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2016. http://amslaurea.unibo.it/9771/.

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With the outlook of improving seismic vulnerability assessment for the city of Bishkek (Kyrgyzstan), the global dynamic behaviour of four nine-storey r.c. large-panel buildings in elastic regime is studied. The four buildings were built during the Soviet era within a serial production system. Since they all belong to the same series, they have very similar geometries both in plan and in height. Firstly, ambient vibration measurements are performed in the four buildings. The data analysis composed of discrete Fourier transform, modal analysis (frequency domain decomposition) and deconvolution

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Floresca, Diane Lee Bosuego 1979. "Research into building vibrations." Thesis, Massachusetts Institute of Technology, 2003. http://hdl.handle.net/1721.1/29550.

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Thesis (M.Eng.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2003.<br>Includes bibliographical references (leaf 63).<br>Underground and surface arteries for vehicle or railway traffic can create vibrations that travel to nearby buildings. These vibrations can cause structural damage or human discomfort. Displacement time histories collected from buildings abutting the central surface artery were used to drive mathematical models so that asphaltic and polymeric bearings could be studied as possible passive mitigators of such vibrations. Neither material

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38

Woodroof, Harry John. "Community response to railway-induced building vibration." Thesis, University of Southampton, 1988. https://eprints.soton.ac.uk/52278/.

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This study is an investigation of the subjective response to railway-induced building vibration. No previous study has obtained both subjective and objective measures from so many lineside residents: several hundred were interviewed and over fifty of the dwellings provided a site for a continuous 24 hour recording of building vibration. Annoyance caused by railway-induced building vibration, and the factors affecting annoyance, were investigated in a social survey. Of a sample of 720 adults living within 100 metres of railway lines in Scotland, 459 were interviewed; 160 of these noticed railwa

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Laub, Errol (Errol Jonathan) 1976. "Design methodologies for controlling vibrations in buildings." Thesis, Massachusetts Institute of Technology, 1999. http://hdl.handle.net/1721.1/33824.

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Thesis (M.Eng.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 1999.<br>Includes bibliographical references (leaves 44-45).<br>Although vibration absorbers have been employed in mechanical equipment mounting for over 100 years, they have only recently been used for isolating large-scale structures such as bridges and buildings. Their applications range from acoustic to seismic isolation of structures. Virtually any vibration magnitude can be prevented from degrading the performance of a structure. This thesis is intended to provide a practical introductio

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Đerđ, Varju. "Teorijska i eksperimentalna analiza dinamičkog ponašanja jezgra visokih zgrada." Phd thesis, Univerzitet u Novom Sadu, Građevinski fakultet u Subotici, 2016. https://www.cris.uns.ac.rs/record.jsf?recordId=104682&source=NDLTD&language=en.

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U ovoj disertaciji, izvršena su teorijska i eksperimentalna istraživanja dinamičkog onašanja jezgra visokih zgrada. Model je zasnovan na Vlasovoj teoriji tankozidnih nosača, kao i na metodi prenosnih matrica. Jezgro se tretira kao tankozidni nosač otvorenog poprečnog preseka, koji je na dnu uklješten u temeljnu ploču, dok je na vrhu  slobodan.  Duž  ose  smicanja,  jezgro  je  podeljeno  na  čvorove  u  nivoima spratova  u  kojima  su  redukovane  mase.  Poseban  naglasak  je  stavljen  na&

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BENEVELI, SUZANA MOREIRA AVILA. "HYBRID CONTROL FOR REDUCING BUILDING VIBRATIONS." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2002. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=3124@1.

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COORDENAÇÃO DE APERFEIÇOAMENTO DO PESSOAL DE ENSINO SUPERIOR<br>No presente trabalho estuda-se a aplicação do controle estrutural na proteção de estruturas submetidas a carregamentos dinâmicos contra níveis de vibração indesejáveis que possam causar desconforto e, até mesmo, comprometer a segurança e integridade da edificação. Os três tipos de controle estrutural, passivo, ativo e híbrido, são analisados de forma a evidenciar as vantagens do uso do controle híbrido. O mecanismo de controle utilizado é o denominado amortecedor de massa sintonizado (AMS), devido à sua vasta aplicação na

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Widjaja, T. R. "Vibration transmission between two nominally identical building floors." Thesis, University of Sheffield, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.496482.

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May, James E. "Non-Linear Control of Long, Flexible Structures Employing Inter-Modal Energy Transfer [Modal Damping]." University of Akron / OhioLINK, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=akron1247711518.

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44

Hofstetter, Marcel, and Nima Pashai. "Soil-structure interaction for traffic induced vibrations in buildings." Thesis, KTH, Bro- och stålbyggnad, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-233001.

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Major cities in Sweden experience a population growth, demanding innovative solutions regarding land exploitation for residential housing. One solution is to build closer to existing railway tracks, however difficulties arise regarding determining traffic induced vibrations from trains. This sometimes results in vibrations being too large in buildings regarding comfort, resulting in expensive measures taken as to reduce the vibrations. The scope of this thesis is to investigate the soil-structure interaction caused by traffic induced vibrations in buildings using ABAQUS FE software, where the

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Bolmsvik, Åsa. "Structural-acoustic vibrations in wooden assemblies: : Experimental modal analysis and finite element modelling." Doctoral thesis, Linnéuniversitetet, Institutionen för bygg- och energiteknik (BE), 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-24562.

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This doctoral thesis concerns flanking transmission in light weight, wooden multi-storey buildings within the low frequency, primarily 20-120 Hz. The overall aim is to investigate how the finite element method can contribute in the design phase to evaluate different junctions regarding flanking transmission. Two field measurements of accelerations in light weight wooden buildings have been evaluated. In these, two sources; a stepping machine, and an electrodynamic shaker, were used. The shaker was shown to give more detailed information. However, since a light weight structure in field exhibit

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Yeung, Ngai. "Viscous-damping walls for controlling wind-induced vibrations in buildings." Hong Kong : University of Hong Kong, 2000. http://sunzi.lib.hku.hk/hkuto/record.jsp?B2324205X.

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Karlberg, Victor. "Dynamic analysis of high-rise timber buildings : A factorial experiment." Thesis, Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-65559.

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Today high-rise timber buildings are more popular than ever and designers all over the world have discovered the beneficial material properties of timber. In the middle of the 1990’s cross-laminated timber (CLT), was developed in Austria. CLT consists of laminated timber panels that are glued together to form a strong and flexible timber element. In recent years CLT has been on the rise and today it is regarded as a good alternative to concrete and steel in the design of particularly tall buildings. Compared to concrete and steel, timber has lower mass and stiffness. A high-rise building made

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Hudson, Emma J. "Incorporating active control of human-induced vibrations in floors into buildings." Thesis, University of Sheffield, 2013. http://etheses.whiterose.ac.uk/4313/.

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This thesis investigates the implications of incorporating active vibration control (AVC) into floor structures from the initial design stage, with the goal of enabling the construction of more slender long-span floors. The original contributions to knowledge in this work are the investigations into: the development of a novel walking force that simulates the in-service loading of an office environment; the comparison between the effectiveness of AVC and tuned mass dampers (TMDs) when used on floor structures; the investigation into the effect of AVC over the entire floor area rather than cons

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Oskarsson, Adam. "Transmission of Vibrations in Precast Concrete Slabs." Thesis, Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-79119.

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Abstract:

Dynamic loads have historically not been a troubled area for concrete ﬂoors, foremostbecause of the high self-weight compared to the dynamic load. With new technical andcalculation achievements during the last decades concrete ﬂoors have become longerand more slender. This have led to more open plan structures with longer spans thatmake concrete ﬂoors more sensitive to vibrations.This thesis studies the dynamic eﬀects of hollow concrete core elements induced by co-ordinated jumping and the vibration levels that spread to the ﬂoor above. The thesisinvestigates diﬀerent standards and guides on h

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Al-Anbaki, Atheer Faisal Hameed. "Footfall excitation of higher modes of vibration in low-frequency building floors." Thesis, University of Exeter, 2018. http://hdl.handle.net/10871/34081.

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Abstract:

This thesis investigates the footfall excitation of higher modes of vibration in low-frequency floor structures. This is motivated by the increased number of floors reportedly failing to meet the required occupants comfort level although being designed in accordance with the current state-of-the-art design guidelines. In particular modern, lightweight, and slender floor structures. The contribution to knowledge of this thesis can be summarised as: quantifying the signal energy of measured walking forces within and above the natural frequency cut-off proposed by the current state-of-the-art des

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