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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Computer simulation of hollowcore concrete flooring systems exposed to fire : a thesis submitted in partial fulfilment of the requirements for the degree of Doctor of Philosophy, Department of Civil Engineering, University of Canterbury, Christchurch, New Zealand /

Chang, Jeremy. January 1900 (has links)
Thesis (Ph. D.)--University of Canterbury, 2007. / Typescript (photocopy). "April 2007." Includes bibliographical references (p. 275-289). Also available via the World Wide Web.
2

The significance of negative bending moments in the seismic performance of hollow-core flooring : a thesis submitted in partial fulfilment of the requirements for the degree of Master of Engineering at the University of Canterbury /

Woods, Lisa Joy. January 2008 (has links)
Thesis (M.E.)--University of Canterbury, 2008. / Typescript (photocopy). Includes bibliographical references. Also available via the World Wide Web.
3

The seismic behaviour of existing hollowcore seating connections pre and post retrofit : a thesis submitted in partial fulfilment of the requirements for the degree of Master of Engineering at the University of Canterbury /

Jensen, James January 2006 (has links)
Thesis (M.E.)--University of Canterbury, 2006. / Typescript (photocopy). Includes bibliographical references. Also available via the World Wide Web.
4

'n Koste vergelykende studie tussen konvensionele ongewapende beton en spanbeton pakhuisvloere wat vir puntlaste ontwerp is

Vilonel, Jacobus Philippus 17 November 2014 (has links)
M.Ing. (Civil Engineering) / Please refer to full text to view abstract
5

Structural floor systems of our past

Volciak-McCammon, Valerie . January 2000 (has links)
This project researches structural floor systems utilized during the late eighteen hundreds and into the early nineteen hundreds. Historical background and general design information is included along with information on materials used in the systems and data sheets for these materials illustrating their properties. The floor systems, which were found to be in use during this time period, are presented individually including a description of the system, its materials and properties associated with the system. Five case studies have been included to illustrate how this project can be utilized to identify the type of floor system used within a historical building and the structural evaluation process that may follow.This creative project was completed in order to serve as a guiding tool in the evaluation process of the floor system of a historical structure. It is intended and formatted to be used by structural engineers, forensic engineers and others with a sufficient understanding of structural issues. The systems discussed are original and often diverse from those utilized in construction today. This in itself is important to understand when preparing to evaluate and renovate a historical structure. / Department of Architecture
6

Seismic performance assessment of reinforced concrete buildings with precast concrete floor systems : a thesis submitted in partial fulfilment of the requirements for the degree of Doctor of Philosophy at the University of Cantrebury [i.e. Canterbury] /

Peng, Brian. January 1900 (has links)
Thesis (Ph. D.)--University of Canterbury, 2009. / Typescript (photocopy). "July 2009." Includes bibliographical references. Also available via the World Wide Web.
7

Behaviour of floor joint edges under hard-wheeled loads

Van der Merwe, Elizabeth Maria 15 August 2012 (has links)
M.Ing. / This research project was initiated by a well-known international company (MAKRO SA), which had experienced floor joint problems occurring in their industrial floors. Floor joint problems i.e. joint damage and spalling of the joint area result, from a combination of construction workmanship and quality control problems, as well as from operational hard wheeled vehicle loading conditions. Damaging and spalling of joint edges are general problems occurring on warehouse floor slabs because of hard wheeled loads trafficking joints. In addition, joint filler detachment from the joint wall surface looks aesthetically poor and leaves the possibility of hygienic problems developing. In the case of MAKRO SA stores, the above problems are not acceptable and should be avoided at all costs. The objective of the report is to investigate solutions to solve the problem of joint damage in industrial floors due to problems occurring in practice, as described below. Floor joint edge problems are a result of three main reasons. First, subsoil quality. The quality of the subsoil is determined by the compaction effort and type of filler materials used, which in turn determine the amount of deflection that will be detected at joint edges. Subgrade quality determines whether deflection of the top concrete layer will occur. Poor compaction and filler material contributes to excessive deflection occurring due to inadequate support of the concrete floor slabs. Water penetration through the floor slab results in the fines of the subsoil being eroded or washed out, resulting in a less dense material, which will deflect under large vehicle and store racking loads. It is concluded that good quality subsoil conditions will result in less deflection and level irregularities of the top concrete floor slab, resulting in less joint damage and spalling. Secondly, the effect of floor and joint workmanship on damage and joint edge spalling. Level irregularities occur due to poor troweling or floating efforts at the joint area. Poor joint edge workmanship results from incorrect formwork removal from the joint wall resulting in a damaged joint edge and additional spalling of the joint to that occurring from wheel load impact. Joints undergo damage as forklifts traffic the joint area as wheel load and energy
8

DESIGN AND BEHAVIOR OF COMPOSITE SPACE TRUSSES

Navarro Cota, Juan Pedro Martin, 1963- January 1987 (has links)
A fully automated computer program is developed for the optimum design of steel space trusses acting compositely with a concrete slab placed on top. The program sizes the truss members to meet the requirements of the load and resistance factor design specification of the American Institute of Steel Construction using the load combinations of ANSI. Earthquake loading is not considered. The optimum size is based on minimum cost, regarding the amount of welding required at the joints and of the member itself. The total cost is based on all steel work in the truss. Once the truss configuration has been defined, and it has been ensured that linear elastic behavior exists, the structure is analyzed for the construction process, to make sure that no overstressing will take place in any structural element at any time during construction and service. The analysis and design principles are presented and an actual design case is solved. (Abstract shortened with permission of author.)
9

Pavimento intertravado de concreto reforçado com fibras de vidro / Interlocked floor of glass fiber reinforced concrete

Vaz, Viviane Visnardi, 1987- 26 August 2018 (has links)
Orientadores: Rosa Cristina Cecche Lintz, Marco Antonio Carnio / Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Tecnologia / Made available in DSpace on 2018-08-26T15:22:30Z (GMT). No. of bitstreams: 1 Vaz_VivianeVisnardi_M.pdf: 4951532 bytes, checksum: 5513fc36c7d951f9241a2649baca2fcb (MD5) Previous issue date: 2015 / Resumo: O concreto possui propriedades estruturais desejáveis como a resistência à compressão elevada, a rigidez e a durabilidade, mas, ao mesmo tempo, apresenta algumas limitações, como a baixa capacidade de deformação e a rápida propagação de fissuras quando submetido a esforços de tração. A utilização de fibras como material de reforço é uma alternativa para minimizar as limitações deste material. O objetivo deste estudo é avaliar o comportamento mecânico do Concreto Reforçado com Fibras de Vidro (CRFV) e verificar a viabilidade da aplicação do CRFV em peças de pavimento intertravado. A escolha do traço foi feita levando-se em consideração a norma brasileira que estabelece para pavimentos com tráfego de pedestres, veículos leves e veículos comerciais de linha resistência característica à compressão mínima de 35 MPa e para pavimentos com tráfego de veículos especiais e solicitações capazes de produzir efeitos de abrasão acentuados resistência característica à compressão mínima de 50 MPa. A análise dos resultados obtidos permite concluir que a adição de fibras ao concreto proporciona aumento na resistência à tração na flexão e a resistência residual pós-fissuração aumenta com o teor crescente de fibras de vidro na mistura. Verificou-se também um aumento na resistência à compressão das peças de pavimento intertravado moldadas com o concreto reforçado com fibra de vidro possibilitando a aplicação deste traço em pavimentos com tráfego de veículos especiais, de acordo com os limites estabelecidos pela norma brasileira / Abstract: The concrete has desirable structural properties such as high compressive strength, stiffness and durability, but at the same time it has some limitations such as low deformability and rapid crack propagation when subjected to tensile stresses. The use of fibers as reinforcement material for the concrete is an alternative to minimize the limitations of this material. The objective of this report is to evaluate the mechanical behavior of glass fiber reinforced concrete (GFRC) and verify the viability of the application of GFRC in interlocked floor blocks. The choice of recipe was made assuming the Brazilian Standard establishes floor with pedestrian traffic, light vehicles and line commercial vehicles minimum characteristic compressive strength of 35 MPa and special vehicle traffic floors and requests can produce marked effects of abrasion minimum characteristic compressive strength of 50 MPa. The analysis of the results shows that the addition of concrete to the fibers provides increased flexural tensile strength and residual flexural tensile strength post-cracking increases with increasing content glass fibers in the mixture. It was also verified an increase in the compressive strength of interlocked floor blocks made with glass fiber reinforced concrete making it possible the application of these recipe in the floors with special vehicle traffic, in accordance with the limits set by the Brazilian Standard / Mestrado / Ciência dos Materiais / Mestra em Tecnologia
10

Mateřská školka / Kidsgarden

Jelínek, Jan January 2019 (has links)
The goal of this thesis is to create a design documentation for a kindergarten. This building is situated in the city called Brtnice – more specifically in its newly established location Nová Čtvrť. The kindergarten has two floors. Walls of the first one are partly sunken under the surface level. Each floor is divided into an operating section and part for a preschool education. The building has a foundation made of plain concrete bands, built from an aerated concrete and has a flat roof. Following building project puts an emphasis on a spatial and architectonical layout, energy savings and overall safety.

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