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Dissertations / Theses on the topic 'Trusses – Testing'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

Bauer, Dominique. "Triangular trusses fabricated from rectangular hollow sections." Thesis, McGill University, 1987. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=75364.

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This thesis deals with the behaviour and design of triangular trusses fabricated from Hollow Structural Sections (HSS), with two Warren-type web planes and a single tension chord. Experimental programs are described in which triangular truss segments and simplified joints were tested in order to investigate the behaviour of compression web members and tension-chord welded joints. The mechanics of joint deformations are analysed in relation to the yield line theory, and simple models are shown to give a good prediction of the joint stiffnesses and strengths. Complex yield line models are invest

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2

Mwakali, Jackson Aarali. "The collapse behaviour of double-layer space trusses incorporating eccentrically loaded tee-section members." Thesis, University of Surrey, 1990. http://epubs.surrey.ac.uk/756/.

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3

Radhakrishnan, Perumal. "Post-buckled performance of partially restrained and intermediately supported steel angles." PDXScholar, 1986. https://pdxscholar.library.pdx.edu/open_access_etds/3609.

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The post-buckled performance of cross-braced single angles was experimentally determined. The results of this study will be used by the Bonneville Power Administration for the analysis of member performance in transmission towers.

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4

Ziemba, Gilead Reed. "Theoretical analysis of light-weight truss construction in fire conditions, including the use of fire-retardant-treatment wood." Link to electronic thesis, 2006. http://www.wpi.edu/Pubs/ETD/Available/etd-050506-114556/.

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5

Richardson, Sarah. "In-Situ Testing of a Carbon/Epoxy IsoTruss Reinforced Concrete Foundation Pile." Diss., CLICK HERE for online access, 2006. http://contentdm.lib.byu.edu/ETD/image/etd1280.pdf.

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6

Sparks, S. Nicholas. "Testing of Overhead Box Truss Chords and Flanges." Ohio University / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1493809504770442.

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7

Andberg, Brent K. "Modal testing and analysis of the NPS Space Truss." Thesis, Monterey, California. Naval Postgraduate School, 1997. http://hdl.handle.net/10945/8683.

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Approved for public release; distribution is unlimited<br>This thesis deals with modal testing and analysis of the Naval Postgraduate School (NPS) Space Truss. A finite element model (FEM) was developed for the truss using a MATLB program called NRLFEMI (developed at the Nava1 Research Laboratory). Analytical predictions of the natural frequencies for this 3.76 meter by 0.35 meter precision structure were calculated using the NRLFEMI code. These calculated natural frequencies were then compared to experimental data collected during modal testing of the truss in the NPS dynamics and Control Lab

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8

Hedric, Andrew C. "Dynamic Behaviors of Historical Wrought Iron Truss Bridges – a Field Testing Case Study." Thesis, University of North Texas, 2015. https://digital.library.unt.edu/ark:/67531/metadc822751/.

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Civil infrastructure throughout the world serves as main arteries for commerce and transportation, commonly forming the backbone of many societies. Bridges have been and remain a crucial part of the success of these civil networks. However, the crucial elements have been built over centuries and have been subject to generations of use. Many current bridges have outlived their intended service life or have been retrofitted to carry additional loads over their original design. A large number of these historic bridges are still in everyday use and their condition needs to be monitored for public

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9

Saarimäki, Jonas. "The mechanical properties of lattice truss tructures with loadbearing shells made of selectively laser melted Hastelloy X (TM)." Thesis, KTH, Industriell produktion, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-41320.

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This thesis discusses how to test the mechanical properties of openlattice truss structures and hybrids being a tube containing a latticetruss structure. By properties we mean strength, stiffness, thermalconductivity and so forth.Mechanical testing was done on two different structures to betterunderstand how the load-bearing properties change when these structuresare subjected to tensile, compressive and bending forces. The structuresinvestigated were Diamond and Octagon built at 45° and 90°. Acousticemission was also used to evaluate and analyze the different behaviour ofthe structures. The t

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10

Santos, Cody Joshua. "Dynamic Testing for a Steel Truss Bridge for the Long Term Bridge Performance Program." DigitalCommons@USU, 2011. https://digitalcommons.usu.edu/etd/894.

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Under the direction of the Federal Highway Administration the Long Term Bridge Performance Program (LTBP) selected Minnesota Bridge number 5718 as a pilot bridge for evaluation. This program focuses on the monitoring of bridges for a 20-year period to understand the structural behavior over time due to the various loads and weathering. In monitoring this bridge a better understanding can be acquired for the maintenance issues related to the nation's deteriorating bridge infrastructure. Bridge Number 5718, which is located just outside of Sandstone Minnesota, is a steel truss bridge that span

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11

Alhameedi, Ali. "Hybrid testing procedure development : An experimental study a hybrid simulation of a steel truss element." Thesis, Linnéuniversitetet, Institutionen för byggteknik (BY), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-90786.

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Hybrid simulation is a numerical and experimental structural testing technique in which the critical structural members are tested experimentally, while the rest of the structure is modeled numerically. During hybrid testing, the numerical model is updated continuously based on the output of the experimental test. In this study, a quasi-static hybrid simulation was conducted on a steel truss structure. A single truss member was considered as the physical substructure, while the remaining members were modeled using Abaqus finite element software. The communication between the physical and numer

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12

Maille, Nathan James. "Assessing the Roof Structure of the Breeding Barn Using Truss Member Resonant Frequencies." ScholarWorks @ UVM, 2008. http://scholarworks.uvm.edu/graddis/144.

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The motivation for this research was to apply methods of vibrations testing in order to determine axial loads in the pin-ended truss members of the Breeding Bam. This method of vibrations testing was necessary in order to determine the in-situ axial loads of the truss members in the bam. Other common methods, such as strain gauges, were not useful for this application. This is because strain gauges can only detect changes in strain and therefore only changes in load. However due to the size and weight of the roof at the Breeding Bam, significant axial loads are produced in the truss mem

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13

Häggström, Jens. "Evaluation of the Load Carrying Capacity of a Steel Truss Railway Bridge : Testing, Theory and Evaluation." Licentiate thesis, Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-60029.

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A good deal of resources has been invested in building and maintaining existing infrastructure.Many structures are now becoming old and do not meet the requirements of an increasingtraffic load, or are reaching the end of their lifecycle. It is not possible or sustainable to replaceall those structures that have been judged to be obsolete or nearly obsolete. However, in manycases, their specified load carrying capacities are understated, so there is an urgent need toobtain more robust knowledge of their true status. In the design of new structures, a numberof assumptions relating to loading an

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14

Laurendeau, Matthew P. "Live-Load Testing and Finite-Element Analysis of a Steel Cantilever Deck Arched Pratt Truss Bridge for the Long-Term Bridge Performance Program." DigitalCommons@USU, 2011. https://digitalcommons.usu.edu/etd/904.

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The Long Term Bridge Performance (LTBP) program is an organization within the Federal Highway Administration that inspects, tests, analyzes, and observes, for an extended period of time, a variety of bridge types throughout the United States. Part of the program includes periodic testing of select bridges of a span of 20 years. The Kettle River Bridge located outside of Sandstone, Minnesota was selected for study due to its unique design. The Kettle River Bridge is a historical steel cantilevered deck arched Pratt truss bridge. The bridge was instrumented with 151 strain gauges on various f

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15

Janíček, Jakub. "Školící středisko Zašová - stavebně technologický projekt." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2014. http://www.nusl.cz/ntk/nusl-227007.

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The subject of work is building-technology project Training center in Zasova. The study includes a technical report on the construction technological project, technical report of the site equipment project including a drawings, design of the main building machines, technical report of transport relations, itemized budget, the detailed time plan of the construction, technology regulations to of the selected construction processes, inspection and testing plans, occupational safety, environment, contract for construction works, major lifting mechanisms evaluation from an economic perspective.

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16

Avci, Onur. "Effects of Bottom Chord Extensions on the Static and Dynamic Performance of Steel Joist Supported Floors." Diss., Virginia Tech, 2005. http://hdl.handle.net/10919/29432.

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The purpose of this study was to examine the effect of bottom chord extensions on deflections and vibration characteristics of joist supported floor systems when joist bottom chord extensions are installed. To understand the effect of bottom chord extensions on deflections, natural frequency, damping, mode shape and effective mass, extensive analytical and experimental studies were conducted on single span and three span joist supported laboratory footbridges with different bottom chord extension configurations. Finite element computer models were created to simulate and compare the results

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17

Pozler, Tomáš. "Stavebně technologický projekt pro hotel v Krkonoších." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2020. http://www.nusl.cz/ntk/nusl-409940.

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This diploma thesis solves processing of documents for realization of hotel construction in Špindlerův Mlýn. The work contains technical report, coordination situation, time and financial plan of construction, construction technology study, project of construction site equipment, design of construction machinery, plan of material resources, technological regulation for truss realization, plumbing and roofing, control and testing plan protection of health at work, playground project.

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18

Keller, Philipp. "Wind induced torsional fatigue behavior of truss bridge verticals." Thesis, 2012. http://hdl.handle.net/1957/30345.

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The Astoria-Megler Bridge is a 6.6 kilometer (4.1 mile) long bridge, connecting Oregon and Washington on US 101, with a continuous steel truss main span of 376 m (1232 ft). It is the second longest main span bridge of this type in the world. Due to vortex shedding, some of the long truss verticals exhibit wind-induced torsional vibrations. These vibrations can create large numbers of repeated stress cycles in the truss verticals and the gusset plate assemblies. The members and connections were not designed for such conditions and the impact of this behavior on the service life of the bridge is

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19

Bowen, Charles Merrill. "Analysis, testing, and load rating of historic steel truss bridge decks." Thesis, 2003. http://wwwlib.umi.com/cr/utexas/fullcit?p3110731.

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20

Kao, Hao-Wei, and 高浩瑋. "Testing Bubble in Japan Real Estate Investment Trusts--A Nonparametric Approach." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/676d95.

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21

CHANG, KAI-YEN, and 張開硯. "Testing Bubble in the U.S Real Estate Investment Trusts - An Application of West's Approach." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/w6dv8s.

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22

Kelton, Sean L. "Material Characterization and Structural Response of Historic Truss Bridges." 2010. https://scholarworks.umass.edu/theses/448.

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Historic truss bridges are examined in this thesis through material characterization of wrought iron and structural evaluation of an early 20th century pony truss bridge. The mechanical properties of wrought iron from six 19th century truss bridges were evaluated through mechanical testing that includes hardness and tension tests. The main findings of this work are: 1) That hardness is a poor predictor of yield and ultimate stress but has some ability in screening iron for iron with low ductility, 2) there is a statistically significant difference in the distribution of yield and ultimate st

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23

Huang, Wen-Chun, and 黃文駿. "Testing and Analysis with Softened Truss Model of Reinforced Concrete Column with Wing Walls." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/37984475229782045959.

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碩士<br>國立成功大學<br>建築學系碩博士班<br>90<br>As Taiwan located at the Circum-Pacific seismic zone, earthquakes occur very frequently. The investigation of seismic damage in recent years revealed that the damage of school buildings was much more serious than others due to the shear failure of the columns in the direction paralleled to the corridor at the bottom floor. Oppositely, some buildings were damaged very lightly because of the applicable walls set at both sides of the columns, which formed the so-called column with wing walls, that strengthened the aseismic ability in the direction paralleled to t

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24

DePiero, Anthony H. "High cycle fatigue modeling and analysis for deck floor truss connection details." Thesis, 1997. http://hdl.handle.net/1957/33707.

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The Oregon Department of Transportation is responsible for many steel deck truss bridges containing connection details that are fatigue prone. A typical bridge, the Winchester Bridge in Roseburg, Oregon, was analyzed to assess the loading conditions, stress levels, and fatigue life of the connection details. The analysis included linear-elastic beam analysis, 2D and 3D finite element modeling, and fatigue modeling. A field identification methodology was developed to expand the analysis to other steel deck truss bridges. Five retrofit strategies were investigated to determine their effectivenes

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25

(8082794), Joseph C. Cacciatore. "Electronics Authenticity Testing Using Comprehensive Two-Dimensional Gas Chromatography." Thesis, 2019.

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<p>Technology has become increasingly more prevalent in all aspects of society since the age of the computer. The United States Military has successfully integrated the powerful processing capabilities of computers to increase the proficiency and lethality of its Soldiers, Sailors, Marines, and Airmen. However, this increased lethality comes at risk due to the inherent vulnerabilities of computer systems to spyware, malware, and counterfeit components. Inspired by the ability of canines to seek out and find electronic devices, this research sought methods to characterize components by their “s

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26

Gomes, Isabel Manuela Dias. "Diagnóstico e ensaio de carga de asnas tradicionais de madeira." Master's thesis, 2015. http://hdl.handle.net/1822/40583.

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Dissertação de mestrado Integrado em Engenharia Civil<br>Nas últimas décadas tem-se assistido a um crescente interesse e consciencialização por parte da sociedade para a necessidade da reabilitação e da preservação das estruturas existentes de madeira. Neste contexto, é fundamental desenvolver metodologias capazes de aferir o nível de segurança das estruturas existentes de madeira, de forma a suportar tecnicamente as intervenções no património construído em madeira. O presente trabalho tem como principal objetivo evidenciar a importância da fase de inspeção e diagnóstico na avaliação de estru

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