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Dissertations / Theses on the topic 'Concrete flat slabs'

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Published: 4 June 2021

Last updated: 11 February 2022

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1

Eigelaar, Estee M. "Deflections of reinforced concrete flat slabs." Thesis, Stellenbosch : University of Stellenbosch, 2010. http://hdl.handle.net/10019.1/2389.

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Thesis (MScEng (Civil Engineering))--University of Stellenbosch, 2010.<br>ENGLISH SUMMARY: It is found that the serviceability limit state often governs the design of slender reinforced concrete members. Slender flexural members often have a percentage tension reinforcement less than 1.0% and an applied bending moment just above the point of first cracking. For such members, the available methods to evaluate the serviceability conditions produce inadequate and unrealistic results. The evaluation of the serviceability of a slender member includes the calculation of the predicted deflection

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2

Al-Tamimi, Adnan. "Fibre-reinforced connections in precast concrete flat slabs." Thesis, University of Nottingham, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.367112.

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Trygstad, Steinar. "Structural Behaviour of Post Tensioned Concrete Structures : Flat Slab. Slabs on Ground." Doctoral thesis, Norwegian University of Science and Technology, Faculty of Engineering Science and Technology, 2001. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-114.

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<p>In this investigation strength and structural behaviour of prestressed concrete is studied with one full scale test of one flat slab, 16000 mm x 19000 mm, and three slabs on ground each 4000 mm x 4000 mm with thickness 150 mm. The flat slab was constructed and tested in Aalesund. This slab has nine circular columns as support, each with diameter 450 mm. Thickness of this test slab was 230 mm and there were two spans in each direction, 2 x 9000 mm in x-direction and 2 x 7500 mm in y-direction from centre to centre column. The slab was reinforced with twenty tendons in the middle column strip

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Melo, Guilherme Sales S. de A. "Behaviour of reinforced concrete flat slabs after local failure." Thesis, University of Westminster, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.304732.

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5

Samadian, Fariborz. "Investigation of shear reinforcement for reinforced concrete flat slabs." Thesis, University of Westminster, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.362692.

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6

Cloete, Renier. "A simplified finite element model for time-dependent deflections of flat slabs." Pretoria : [s.n.], 2005. http://upetd.up.ac.za/thesis/available/etd-05302005-123208/.

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7

Gomes, Ronaldo Barros. "Punching resistance of reinforced concrete flat slabs with shear reinforcement." Thesis, University of Westminster, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.303158.

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8

Smith, Holly Kate Mcleod. "Punching shear of flat reinforced-concrete slabs under fire conditions." Thesis, University of Edinburgh, 2016. http://hdl.handle.net/1842/20962.

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This thesis examines punching shear response of reinforced-concrete flat slabs under fire conditions. The shear behaviour of concrete in fire is relatively poorly understood compared to its flexural response. Failures such as the Gretzenbach car park failure in Switzerland (2004) have prompted concerns over the punching shear capacity of flat slabs in fire. The shear behaviour of reinforced-concrete in fire depends on degradation of the individual material properties with temperature, their interaction, and more recently recognised, the effects of restrained thermal expansion. Through experime

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9

Kamaraldin, Khaled. "Punching shear and moment transfer in reinforced concrete flat slabs." Thesis, University of Westminster, 1990. https://westminsterresearch.westminster.ac.uk/item/94vwq/punching-shear-and-moment-transfer-in-reinforced-concrete-flat-slabs.

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Michels, Julien [Verfasser]. "Bearing Capacity of Steel Fiber Reinforced Concrete Flat Slabs / Julien Michels." Aachen : Shaker, 2010. http://d-nb.info/1104047403/34.

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Sha'at, Emad. "Punching shear strength of reinforced concrete flat slabs at edge columns." Thesis, Queen's University Belfast, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.261880.

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12

CUBAS, MARIA VANESSA LA TORRE. "NUMERICAL ANALYSIS OF THE BEHAVIOR OF FLAT SLABS PRESTRESSED CONCRETE FLOORS." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2012. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=20465@1.

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PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO<br>COORDENAÇÃO DE APERFEIÇOAMENTO DO PESSOAL DE ENSINO SUPERIOR<br>PROGRAMA DE EXCELENCIA ACADEMICA<br>Lajes lisas de concreto protendido com cordoalhas engraxadas não aderentes têm sido empregadas em pavimentos de edificações com frequência nos últimos anos. Essa solução estrutural é ideal quando se tem uma distribuição regular dos pilares. Além disso, sabe-se que lajes de concreto protendido oferecem vantagens técnicas sobre a solução tradicional em concreto armado, principalmente para vencer vãos maiores e onde muitas vezes se exigem seções

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Jarrat, Robert. "Construction in in-situ cast flat slabs using steel fibre reinforced concrete." Thesis, Stellenbosch : Stellenbosch University, 2011. http://hdl.handle.net/10019.1/17861.

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Thesis (MScEng)--Stellenbosch University, 2011.<br>ENGLISH ABSTRACT: Fibre reinforced concrete (FRC) transforms concrete from a characteristically brittle material to one with a post-crack tensile residual capacity. Its application in industry has varied over the past of which the tensile properties have generally been used in the form of crack mitigation. More recently, the introduction of steel fibres has broadened this scope to structural applications in which the resisting tensile stresses that develop within a steel FRC (SFRC) element can be rather significant. This thesis reviews the exi

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Al, Ajami Abdulhamid. "Punching shear of concrete flat slabs reinforced with fibre reinforced polymer bars." Thesis, University of Bradford, 2018. http://hdl.handle.net/10454/16864.

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Fibre reinforcement polymers (FRP) are non-corrodible materials used instead of conventional steel and have been approved to be an effective way to overcome corrosion problems. FRP, in most cases, can have a higher tensile strength, but a lower tensile modulus of elasticity compared to that of conventional steel bars. This study aimed to examine flat slab specimens reinforced with glass fibre reinforced polymer (GFRP) and steel bar materials for punching shear behaviour. Six full-scale two-way slab specimens were constructed and tested under concentric load up to failure. One of the mai

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Jalal, Pasha, and Jose Andres Perez. "Punching shear in concrete flat slabs supported on slender edge steel columns." Thesis, KTH, Betongbyggnad, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-278546.

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Punching shear is a failure mechanism caused by concentrated loads, creating a crack pattern that resembles a cone shape or piece of pie starting from the top surface of the slab and prolongs downwards. When the total shear force is greater than the shear resistance of the slab, it may eventually lead to punching shear failure. It can be visualized as the column punches through the slab. Punching shear is very brittle and occurs all of a sudden. It is believed that the slab is subjected to hogging moments over the column in both directions, i.e. parallel and perpendicular to the free edge. Non

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Hossain, Tahsin Reza. "Numerical modelling of deflections of reinforced concrete flat slabs under service loads." Thesis, Imperial College London, 1999. http://hdl.handle.net/10044/1/7243.

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Broms, Carl Erik. "Concrete flat slabs and footings : Design method for punching and detailing for ductility." Doctoral thesis, KTH, Brobyggnad inkl stålbyggnad, 2005. http://innopac.lib.kth.se/search/.

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Thesis (Ph.D.)--Royal Institute of Technology (Stockholm, Sweden), 2005.<br>"ISRN KTH/BKN/B-80-SE." "Dept. of Civil and Architectural Engineering, Division of Structural Design and Bridges, Royal Institute of Technology, Stockholm. " Includes bibliographical references. Available from the Royal Institute of Technology (Sweden) Library as a .pdf document http://www.lib.kth.se/main/eng/

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Ngekpe, B. E. "Punching shear failure of reinforced concrete flat slabs supported on steel edge column." Thesis, Coventry University, 2016. http://curve.coventry.ac.uk/open/items/5f0f9112-1838-448f-a245-cacc0bc3a9f5/1.

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This study examines punching shear failure at edge supported flat slab. Due to the significant dearth of research on punching shear at edge steel column, this study focuses on the design and performance of a novel shearhead system proposed for edge connection. By considering multi-stage processes and parameters that influence punching shear failure, both numerical and experimental studies were adopted. Firstly linear finite element analysis was employed to study the relationship between the continuous structure and the representative specimen; in order to support decisions on boundary conditio

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Baskaran, Kathirgamanathan. "Flexural behaviour of reinforced concrete flat slabs supported on non-rectangular column grid." Thesis, University of Cambridge, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.615995.

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20

Grira, Mongi. "A critical review of the symmetric punching shear of reinforced concrete flat slabs." Thesis, University of Ottawa (Canada), 1990. http://hdl.handle.net/10393/6038.

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An experimental investigation on model slabs and on a 1/3 scale composite bridge deck showed that the ultimate punching shear load depends on the shape of the loaded area, the compressive strength of concrete, the flexural reinforcement ratio and on the arrangement of steel bars. Punching failure follows the formation of an inclined failure surface from the edge of the loaded area to the opposite slab face running through the effective depth at a mean angle of 22 to 30 degrees. A study of the application of the yield line theory proves that flexure theory alone is not recommended to treat loca

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Aalto, Jonatan, and Elisabeth Neuman. "Comparison of Punching Shear Design Provisions for Flat Slabs." Thesis, KTH, Betongbyggnad, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-215631.

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Abstract A new generation of EN 1992-1-1 (2004) also known as Eurocode 2 is under development and currently there is a set of proposed provisions regarding section 6.4 about punching shear, PT1prEN 1992-1-1(2017). It was of interest to compare the proposal with the current punching shear design provisions. The aim of this master thesis was to compare the punching shear resistance obtained in accordance with both design codes. Furthermore the eect of some parameters on the resistance was to be compared. It was also of interest to evaluate the userfriendliness of the proposal. In order to meet t

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Vosoughian, Saeed. "The effect of pre-stressing location on punching shear capacity of concrete flat slabs." Thesis, KTH, Betongbyggnad, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-263243.

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Implementing pre-stressing cables is a viable option aiming at controlling deformation and cracking of concrete flat slabs in serviceability limit state. The pre-stressing cables also contribute to punching shear capacity of the slab when they are located in vicinity of the column. The positive influence of pre-stressing cables on punching capacity of the concrete slabs is mainly due to the vertical component of inclined cables, compressive in-plane stresses and counter acting bending moments near the support region. The method presented in Eurocode 2 to determine the punching capacity of the

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Murray, Karl Anthony. "An investigation of the behaviour of reinforced concrete flat slabs in the vicinity of edge columns." Thesis, Queen's University Belfast, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.343022.

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Thuresson, Sofia. "Parametric optimization of reinforced concrete slabs subjected to punching shear." Thesis, KTH, Betongbyggnad, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-279466.

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The construction industry is currently developing and evolving towards more automated and optimized processes in the project design phase. One reason for this development is that computational power is becoming a more precise and accessible tool and its applications are multiplying daily. Complex structural engineering problems are typically time-consuming with large scale calculations, resulting in a limited number of evaluated solutions. Quality solutions are based on engineering experience, assumptions and previous knowledge of the subject.The use of parametric design within a structural de

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Cicolin, Luiz Antonio Betin. "Estabilidade em edifícios de concreto armado com pavimentos em lajes planas." Universidade Federal de São Carlos, 2007. https://repositorio.ufscar.br/handle/ufscar/4622.

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Made available in DSpace on 2016-06-02T20:09:08Z (GMT). No. of bitstreams: 1 1616.pdf: 4035803 bytes, checksum: 02081aa2752efe82918a70652eda7c2e (MD5) Previous issue date: 2007-08-24<br>This present work covers possible manners of evaluating steel concrete frames designed for multiple flooring buildings as far as instability and necessity of second order efforts are concerned. Starting from single floor projects with simple flat slab frame, models with different numbers of floors are considered. The models do not use large rigidity elements such as staircases and lift shafts. The modeling us

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Vargas, Elioth Neyl Zambrana. "Punção em lajes-cogumelo de concreto de alta resistência reforçado com fibras de aço." Universidade de São Paulo, 1997. http://www.teses.usp.br/teses/disponiveis/18/18134/tde-25052018-175031/.

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Neste trabalho investiga-se o comportamento resistente de lajes-cogumelo de concreto armado, analisando-se as possibilidades de melhoria de desempenho com relação ao fenômeno de punção, pelo emprego de concreto de alta resistência, pelo reforço com fibras de aço e pelo uso de armaduras transversais de combate à punção, através de ensaios de modelos de lajes-cogumelo quadradas que representam a ligação laje-pilar para o caso do pilar interno. Apresenta-se também uma revisão de conhecimentos sobre as lajes-cogumelo, o seu comportamento estrutural com ênfase no fenômeno da punção, e os principais

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OLIVEIRA, Diorgenes Carvalho de. "Punção em lajes lisas de concreto armado com furo adjacente ao pilar e transferência de momento." Universidade Federal de Goiás, 2011. http://repositorio.bc.ufg.br/tede/handle/tde/661.

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Made available in DSpace on 2014-07-29T15:03:34Z (GMT). No. of bitstreams: 1 Dissertacao Diorgenes C de Oliveira.pdf: 4985818 bytes, checksum: 3bb65a23267322ba684300f2b7486ab1 (MD5) Previous issue date: 2011-06-17<br>The structural behavior and the ultimate punching shear resistance of internal reinforced concrete flat slab-column connections, with one hole adjacent to the column, with or without flexural moment transfer of the slab to the column was investigated. Main variables were: the existence whether or not hole, flexural reinforcement layout and ratio, the direction and sense of the m

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Navarro, Menargues Miguel. "Estudio numérico parametrizado del punzonamiento en losas de hormigón armado. Evaluación del refuerzo estructural." Doctoral thesis, Universidad de Alicante, 2018. http://hdl.handle.net/10045/83429.

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En el presente trabajo se aborda la tesis “Estudio paramétrico con FEM del refuerzo a punzonamiento de losas de hormigón armado”. Se trata de todo lo relacionado con el fenómeno resistente de punzonamiento en estructuras, especialmente en forjados construidos mediante hormigón armado. Se trata de cuatro apartados bien diferenciados. En este, el primero, se desarrolla la síntesis de la tesis, donde se marcan unos objetivos, seguido de una explicación detallada y descripción de este fenómeno mediante su estado del arte, que abarca el grueso de éste primer apartado, en el cual se describen, entre

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Avilla, Junior Jovair. "Contribuição ao projeto e execução de lajes lisas nervuradas pré-fabricadas com vigotas treliçadas." Universidade Federal de São Carlos, 2010. https://repositorio.ufscar.br/handle/ufscar/4656.

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Made available in DSpace on 2016-06-02T20:09:13Z (GMT). No. of bitstreams: 1 3338.pdf: 4319897 bytes, checksum: 32b80c93c455c298962c6b33fd51002a (MD5) Previous issue date: 2010-02-18<br>The big surge in use of systems for flat slabs gave up the search for freedom in the definition and organization of architectural interior spaces in buildings. The design and construction of buildings on flat slabs, which allow great mobility in defining the internal space of the building and reducing its height. The slabs with prefabricated trussed beams using forms lost in blocks of expanded polystyrene (EP

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RODRIGUES, David Rosa. "Comparação experimental entre tipos de armadura de cisalhamento para combate à punção em lajes cogumelo de concreto armado: Stud rails e Double headed studs." Universidade Federal de Goiás, 2009. http://repositorio.bc.ufg.br/tede/handle/tde/683.

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Made available in DSpace on 2014-07-29T15:03:41Z (GMT). No. of bitstreams: 1 David Rosa Rodrigues.pdf: 6647846 bytes, checksum: 0949b9b9e50ce27a724b92ea2943c5d1 (MD5) Previous issue date: 2009-09-29<br>This research presents the results of an experimental comparison between the types of shear reinforcement "stud rails" and "double headed studs" to combat the punching shear of a reinforced concrete flat slabs. It also presents a comparison of experimental results with those provided under the ACI 318/2005, CEB-FIP MC/1990, EUROCODE 2/2004 and NBR 6118:2003. The motivation was to investigate t

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Hrbáček, Adam. "Knihovna Nymburk." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2017. http://www.nusl.cz/ntk/nusl-265537.

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Topic of my diploma thesis is creating design documentation on level of detailed design, Library of Nymburk. Project contains engineering reports, realization drawings, thermal assessment, fire safety assessment, static ceiling evaluation, simplified foundation design and design of staircases. Projected building has three above ground floors and one partial basement. Structural system vertical is made of mansory walls, based in basement on drilled piles and in first upper floor on strip foundations. Staircases are made of cast-in-place reinforce concrete same for ceiling slabs and joist slabs.

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Russell, Justin. "Progressive collapse of reinforced concrete flat slab structures." Thesis, University of Nottingham, 2015. http://eprints.nottingham.ac.uk/28991/.

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In 1968 a relatively small gas exposition on the 18th floor of the Ronan Point tower building resulted in the partial collapse of the structure. This event highlighted that progress collapse may occur to structures under an accidental loading event. Other events, including the bombing of the Murrah federal building in 1993 in Oklahoma, have resulted in the common design requirement that a structure be capable of surviving the removal of a load bearing element. This approach, often referred to as the sudden column loss scenario, effectively ignores the cause of the damage and focuses on the str

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Jurka, František. "Bytový dům, Brno - Židenice." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2015. http://www.nusl.cz/ntk/nusl-227838.

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Subject of this diploma thesis is desing dokumentation of apartment house. Documentation contains all requisites according to valid regulations. House is designed as detached basement house with one underground floor and five aboveground floors. Object is based on reinforced concrete foundation pads. House is roofed with a flat roof. House contains 18 dwelling units with balconies or terraces. In object is solved parking in underground floor. Vertical load-bearing structure is made of clay blocks. Floors are made of cast-in-place reinforced concrete. Underground floor load-bearing structure is

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Subally, Pavel. "Univerzitní knihovna." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2016. http://www.nusl.cz/ntk/nusl-240253.

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The content of this diploma project is to design an university library in the city of Brno, Czech Republic. The object is designed as multistory building with underground stories included. The design is created based on requests brought by the investor and includes architectural, constructional and technological proposes for the building. The aim is to create not only a modern cultural and educational center but also a place of entertainment and relax for students of Vysoké Učení Technické. During the design it is taken in an account the request of having the auditorium and lecture rooms avail

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Hradský, Peter. "Polyfunkční dům." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2013. http://www.nusl.cz/ntk/nusl-226343.

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Multifunctional buliding is designed as a alone standing new buliding in the cadastral area of Žilina on a private plot no. 4518, Alexandra Street Rudnaya. The buidling is situated in the older part of city build in the sixties with the dominanting residental houses. Type of the multipurpose building is dominant with a residental function. The building totaly contains four apartment units. In the ground floor are offices, spaces of surgeries and access to housing and accessories. Each function has a separate entrance, which is designed for handicapped. In the basemnt of the building are design

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Tran, David, and Sebastian Correa. "Inverkan av placering av spännkablar pågenomstansningskapacitet hos armeradebetongplattor." Thesis, KTH, Byggteknik och design, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-233187.

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På grund av bostadsbristen de senaste åren har byggbranschen varit tvungen att möta den höga efterfrågan på bostäder. Ett sätt att underlätta det tryck som skapats på grund av den höga efterfrågan är att rekonstruera byggnader avsedda för annan användning än bostäder till bostadshus. Ett problem som har uppstått vid ombyggnation av till exempel ett kontorshus som består av spännarmerade pelardäck, är känsligheten för nya hål som krävs för nya installationer som går igenom de efterspända bjälklagen (bestående av betongplattor). Problematiken består av att håltagningar som vanligtvis är lokalise

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Bai, Jong-Wha. "Seismic fragility and retrofitting for a reinforced concrete flat-slab structure." Thesis, Texas A&M University, 2004. http://hdl.handle.net/1969.1/521.

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The effectiveness of seismic retrofitting applied to enhance seismic performance was assessed for a five-story reinforced concrete (RC) flat-slab building structure in the central United States. In addition to this, an assessment of seismic fragility that relates the probability of exceeding a performance level to the earthquake intensity was conducted. The response of the structure was predicted using nonlinear static and dynamic analyses with synthetic ground motion records for the central U.S. region. In addition, two analytical approaches for nonlinear response analysis were compared. FE

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Eder, Martin A. "Inelastic behaviour of hybrid steel/concrete column-to-flat slab assemblages." Thesis, Imperial College London, 2011. http://hdl.handle.net/10044/1/7017.

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The use of tubular columns in conjunction with reinforced concrete flat slabs provides structurally efficient solutions which avoid undesirable failure modes such as those associated with shear. This thesis is concerned with the development of a tubular column-to- flat slab connection system that enables reliable performance under seismic loading conditions. During this research a novel detail which features a gap around the column is proposed and developed; hence only the structural steel shearhead establishes the connection. The exposed parts of the shear arms (fuses) are designed to yield p

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Sharifi, Haki. "Strength of edge column-slab connections of post-tensioned concrete flat plates." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape17/PQDD_0010/MQ32558.pdf.

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AlHarras, Omar. "Seismic behaviour and nonlinear modeling of reinforced concrete flat slab-column connections." Thesis, University of British Columbia, 2015. http://hdl.handle.net/2429/54469.

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The contemporary structural design practice of tall buildings typically incorporates a lateral force resisting system, along with a gravity system that often includes reinforced concrete flat slabs. A major challenge with the design of this system is ensuring adequate strength and deformation capacities of the flat slab-column connections, especially when the structure is prone to strong seismic excitations. When a flat slab-column connection is subjected to a combination of gravity and lateral loads, failure may occur in multiple modes. Comprehensive literature reviews of the experimental stu

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Subedi, Shobha K. "Load Rating of Flat Slab Bridges Without Plans." Youngstown State University / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=ysu1471608754.

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Deaton, James B. "A Finite Element Approach to Reinforced Concrete Slab Design." Thesis, Georgia Institute of Technology, 2005. http://hdl.handle.net/1853/7188.

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The objective of this study was the development of a procedure in GT STRUDL to design reinforced concrete flat plate systems based on the results of finite element analysis. The current state-of-practice of reinforced concrete flat plate design was reviewed, including the ACI direct design and equivalent frame techniques, the yield line method, and the strip design method. The principles of these methods along with a critical evaluation of their applicability and limitations were presented as motivation for a finite element based design procedure. Additionally, the current state-of-the-ar

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Samad, Shahab. "Engineering properties of binary cement concretes and their effect on punching shear of flat slabs." Thesis, Kingston University, 2013. http://eprints.kingston.ac.uk/26572/.

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Concrete is the most important building material in the world due to the fact that it is versatile and gives architectural freedom. For sustainable construction solutions concrete is the material of choice if the embodied CO2 content is considered. In concrete, cement is the main constituent and due to the limit on the availability of natural minerals used, the energy released and the CO2 emissions produced during its manufacture, it can be partially replaced using industrial by-products e.g. Pulverised Fuel Ash (PFA), Ground Granulated Blast furnace Slag (GGBS) and silica fume. The effects of

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Yan, Ping Yu. "Behaviour of shearhead system between flat reinforced concrete slab and steel tubular column." Thesis, University of Manchester, 2011. https://www.research.manchester.ac.uk/portal/en/theses/behaviour-of-shearhead-system-between-flat-reinforced-concrete-slab-and-steel-tubular-column(7a3b5496-ca58-4a85-8028-3f64ad0eeddd).html.

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This thesis presents the results of an experimental, numerical and analytical study to develop a design method to calculate punching shear resistance for a new shearhead system between tubular steel column and reinforced concrete flat slab. This shearhead system enables two of the most popular structural systems, i.e. reinforced concrete flat slab floor and steel tubular column, to be used to produce efficient structures of low cost and short construction time. This research investigates slabs without and with a service hole adjacent to the column. The new shearhead system should not only poss

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Milani, Alexandre Caio. "Análise de lajes planas protendidas pelo método dos elementos finitos." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2006. http://hdl.handle.net/10183/10608.

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Na construção civil atual, existe uma tendência de crescimento da automatização do projeto, visando o desenvolvimento de soluções personalizadas a fim de fugir das indesejadas repetições arquitetônicas. Dentro desta tendência, as lajes planas protendidas proporcionam grande flexibilidade de layout, maior rapidez na execução da estrutura e diminuição do número de pilares, proporcionando ganhos de área útil. Um dos principais esquemas estruturais adotados para representar lajes planas protendidas é a laje lisa, com ou sem engrossamento na região dos pilares. As lajes lisas apresentam vantagens e

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OLIVEIRA, Túlio Pessoa Souto Maior. "Utilização de capitéis para aumento de resistência à punção em Lajes de concreto armado." Universidade Federal de Pernambuco, 2015. https://repositorio.ufpe.br/handle/123456789/17673.

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Submitted by Fabio Sobreira Campos da Costa (fabio.sobreira@ufpe.br) on 2016-08-12T13:31:38Z No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) dissertação final Tulio.pdf: 2889761 bytes, checksum: 052b78ab493e64aa19addbe0117d79a0 (MD5)<br>Made available in DSpace on 2016-08-12T13:31:38Z (GMT). No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) dissertação final Tulio.pdf: 2889761 bytes, checksum: 052b78ab493e64aa19addbe0117d79a0 (MD5) Previous issue date: 2015-08-31<br>CNPq<br>Em lajes de concreto armado

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Ulaeto, Nsikak. "Progressive collapse analysis of reinforced concrete flat slab structures considering post-punching and dynamic response." Thesis, University of Surrey, 2018. http://epubs.surrey.ac.uk/850029/.

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Flat slabs are reinforced concrete slabs supported directly on columns without beams. Flat slabs are commonly used for construction of medium-rise office buildings and car parking structures due to their ease of construction, reduced story height and ease of routing of services. Load concentrations can be significant at edge and corner columns as well as around internal columns, making the slab-column connections susceptible to punching shear failure. Most reported occurrences of progressive collapse in flat slab structures have had punching shear failure as an initial local failure. Some of t

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Yu, Junlong. "Development of a new connection between steel tubular column and concrete flat slab using shear studs." Thesis, University of Manchester, 2018. https://www.research.manchester.ac.uk/portal/en/theses/development-of-a-new-connection-between-steel-tubular-column-and-concrete-flat-slab-using-shear-studs(ad03f86d-5f15-4ed9-92e3-7a9b011393a5).html.

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This thesis presents the results of experimental, numerical and analytical studies to investigate two shear connection systems to provide punching shear resistance between flat slabs and steel tubes. Shear connector system 1 relies purely on welded shear studs around the steel tube section and shear connector system 2 incorporates welded shear studs, steel plate and bent-up rebars. The aim of this research is to develop a simple shear connection system that can allow two of the most popular structural systems, reinforced concrete flat slab and steel tubular column to achieve construction effic

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Aldwaik, Mais M. "Cost Optimization of Reinforced Concrete Highrise Building Structures." The Ohio State University, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=osu1574738135695095.

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Silva, Carolina Ribeiro da. "Punção em lajes de concreto armado com furo e transferência de momento: comparação de normas." Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/3/3144/tde-12032018-085200/.

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O crescente uso de lajes sem vigas (lisa com ou sem capitel) como solução estrutural de edificações, justificado por questões econômicas e construtivas, têm destacado a importância do estudo desses elementos estruturais. Já as desvantagens desse sistema estrutural estão associadas às altas tensões geradas na região próxima dos pilares, originando o fenômeno de punção. As normas atuais especificam uma seção íntegra resistente para dimensionamento à punção, entretanto, devido principalmente à passagem de instalações hidráulicas e elétricas através dos pavimentos, é necessária a execução de furaç

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