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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

Framework for Understanding the Relationship between Lean and Safety in Construction

Prakash, Ramya 2010 May 1900 (has links)
Lean construction borrows concepts from lean manufacturing and Toyota Production System in order to eliminate waste and add value to the construction process. Manufacturing processes utilizing lean principles have matured and developed a clear understanding of the relation between lean and safety. Because lean in construction is a relatively new phenomenon, there is not a completely developed understanding of how lean practices affect safety in construction. The Lean Construction Institute and the Academic Forum for Lean Construction has recently targeted this area for focused research. Since all safety incidents imply waste in time and resources, lean and safety have a common ground in the minimization of waste. This thesis researches the common ground of lean and safety in waste minimization and proposes a framework for understanding their relationship. This thesis also critically analyzes lean and safety principles to form an insight to the relationship between lean theories as well as practices and safety issues reported in construction literature. Further, literature also revealed the safety strategies and checklists that companies typically incorporate in their program. A comparative analysis of lean and safety is employed to understand their relations in a better way. This framework establishes that lean and safety have a strong relationship in the context of construction. Future work is needed to show that lean practices indeed strongly affect safety by reducing the number of incidents.
2

Aplicación de lean construction para la ejecución de un proyecto de vivienda. Caso práctico “Edificio Maurtua III”

Gómez Sánchez Serrano, Juan Pablo, Mendoza Chang, Diego Brando, Pérez Reymundo, Jean Pierre January 2015 (has links)
La filosofía lean construction se inició en la década de 1990 basado en la adaptación de las teorías de producción de las grandes fábricas (Lean Production) a la industria de la construcción. Sin embargo su difusión y aplicación en el Perú es aún incipiente, está limitada a un grupo menor de empresas que apuestan por su aplicación, generando mejoras y reducciones en costos y tiempo. El presente trabajo se centra en la aplicación de la filosofía lean construction como método de planificación, ejecución y control de un proyecto de construcción desarrollado en la ciudad de Lima. A lo largo del presente trabajo se describen los principales conceptos y herramientas de la filosofía lean para poder generar una base teórica sólida que respalde la aplicación de herramientas y el análisis de resultados en los proyectos. Además, se analiza y describe de forma detallada como se aplican las herramientas más importantes de esta filosofía (Last Planner System, Sectorización, lookahead, etc.) con la finalidad de difundir la metodología de aplicación de cada herramienta y servir de guía para profesionales o empresas que busquen implementar lean construction en sus proyectos. Por otro lado se analizan las etapas del proyecto de mayor incidencia y se demuestra de manera concluyente los buenos resultados que brinda esta filosofía, buscando de esta forma alentar a que sea adoptada por más empresas del sector construcción y puedan romper el paradigma de que su aplicación genera sobre costos. Finalmente se analiza el desarrollo y performance del proyecto para poder sacar conclusiones y propuestas de mejora que puedan ser aplicadas por la empresa, y otras empresas, en la ejecución de sus próximos proyectos aplicando la metodología de mejora continua. Lean Construction philosophy began in the 1990s based on the adaptation of the theories of production of large factories (Lean Production) to the construction industry. However their dissemination and implementation in Peru is still incipient, it is limited to a smaller group of companies committed to its implementation, generating improvements and reductions in cost and time. This work focuses on the application of lean construction philosophy as a method of planning, execution and control of a construction project developed in Lima. Throughout this work the main concepts and tools of lean philosophy to generate a solid theoretical basis to support the application of tools and analysis results are described in the projects. In addition, it is analyzed and described in detail how are applied the most important tools of this philosophy (Last Planner System, sectorization, look ahead, etc.) in order to spread the methodology of application of each tool and serve as a guide for professional or companies seeking to implement lean construction projects. On the other hand are analyzed the stages of the project with the highest incidence and the good results provided by this philosophy is demonstrated conclusively , thus seeking to encourage to be adopted by companies in the construction sector and can break the paradigm that its application generates extra costs. Finally, the development and performance of the project is analyzed to draw conclusions and suggestions for improvement that can be applied by the company, and other companies, in the execution of their upcoming projects applying the methodology for continuous improvement.
3

Aplicação de métodos de gestão originados na indústria do software a projectos de construção

Martins, Mário Miguel Alves January 2011 (has links)
Tese de mestrado integrado. Engenharia Civil (Construções). Universidade do Porto. Faculdade de Engenharia. 2011
4

Lean Construction na Norlabor - Engenharia e Construção, SA

Ferreira, Ricardo Rafael Dinis de Sousa January 2010 (has links)
Estágio realizado na Norlabor - Engenharia e Construção, SA e orientado pelo Eng.º Pedro Barros / Tese de mestrado integrado. Engenharia Industrial e Gestão. Faculdade de Engenharia. Universidade do Porto. 2010
5

An innovative framework for assessing lean construction maturity

Nesensohn, Claus January 2014 (has links)
This thesis integrates Lean construction (LC) with the organisational assessment method ofmaturity models (MM) and delivers an original contribution to knowledge in the form of avalidated innovative organisational framework to measure the current state of LC maturity,which is called Lean Construction Maturity Model (LCMM). This framework provides andsupports organisations towards the development of greater maturity and subsequentlyenhances the awareness and understanding of LC. The aim of this research was to enableorganisations to measure the gap between their current state and where they want to be interms of embedding LC. Accordingly, the research addressed this aim further by providingbusinesses with support and guidance in their LC maturation process in particular inmeasuring sought improvement in their journey towards greater maturity in LC. The studywas conducted as a qualitative mixed-method design in order to discover and achieve a richunderstanding of the phenomenon of LC maturity from LC key informants and best fulfil theresearch aim. Consequently, a phenomenological approach was utilised, with focus groups(FGs) as the primary study, combined with a group interview as well as individual interviewsas supplementary components. To ensure validity, three different approaches weredeployed: first the triangulation of three different methods to collect the data, second a richand thick-description, and finally the validation of the developed framework by memberchecks in the form of interviews and a FG. The major findings of this research are: thesuccessful integration of MMs and LC achieved through the development of the proposedframework, and the simplification of LC into 11 Key Attributes that explain LC in a simplerand better way than before. This framework defined a LC maturity assessment methodutilising five maturity levels, 11 Key Attributes, which have been described through 60Behaviours, Goals & Practices, and 75 Ideal Statements that more mature organisations willexemplify. Finally, the most important consequence of this work is the enabling oforganisations to obtain a systemic and holistic overview of their current state of LC maturityand providing them with support in their maturation.
6

Implementering av Lean för små och medelstora byggentreprenadföretag för att reducera slöseri / Implementation of Lean for small and medium-sized enterprises to reduce waste

Gunnarsson, Marcus, Svensson, Viktor January 2016 (has links)
Purpose: Waste and negligence in the construction industry is a way too big factor of the high costs occurring. To reduce those wastes, some companies in the manufacturing industry has started to apply Lean to get a more effectively work. Lean Construction is the construction industries counterpart and this investigation investigates what Lean Construction methods for waste management can do for small and medium-sized enterprises.The goal of this work is to analyze how small and medium-sized enterprises can work to get Lean in to the companies processes to reduce perceived wastageMethod: The methods that is used to achieve the goal and to answer the chosen questions is literature studies, interviews and participant observation.Findings: Based on the methods that is used has different factors to reduce waste been acquired. Better communication, awareness among employees, management commitment and keep the work to the time schedules is important factors for improvement.Implications: Better planning is basis for a more efficient construction process.The most important thing for small and medium-sized enterprises can think about is that expensive solutions do not need to be better than simple methods. The developed factors in this investigation can help companies that want to achieve a more efficient construction process. The reason that this investigation is theoretically based, the derived factors should be applied in real projects to see what impact they have.Limitations: The investigation is limited to small and medium-sized enterprises (SMEs) and is a case study at Brantås Bygg. The study include rework, waiting, movements and transports. The interviews are made with working managers, foremans and carpenters at Brantås Bygg. The participate observation is made at a project in the central parts of Vetlanda, Sweden.Keywords: Lean Construction, Wastes, SME, Implementation issues.
7

La Filosofía Lean Construction y su incidencia en la productividad de la mano de obra de una empresa constructora de Lima Metropolitana caso: “Constructora y Desarrollo C&F S.A.C.”

Villarreal Galvez, Sergio January 2017 (has links)
Determinar la incidencia de la Filosofía Lean Construction en la productividad de la MO de una empresa constructora de Lima Metropolitana. Determine the impact of the Lean Construction Philosophy on the productivity of the OM of a construction company in Metropolitan Lima.
8

Plan de negocio para la implementación de oficinas usando la metodología Lean Construction

Espinoza Ruffner, Sergio, Gutiérrez Vega, Raúl, Sánchez Rengifo, Fernando 05 1900 (has links)
Este plan de negocio se basa en que la empresa Bestcon S.A.C. mejore el flujo de procesos y eficiencia de recursos para entregar servicios personalizados al cliente, en el tiempo esperado y a un costo por debajo promedio del mercado. Para lograr esto, se plantea el uso de la metodología Lean Construction, cuyo principio fundamental es la reducción de pérdidas en las actividades de construcción y maximizar la rentabilidad del proyecto. Es importante indicar que gran parte de las pequeñas y medianas empresas utilizan la metodología tradicional para brindar sus servicios, lo cual consiste en la falta de planificación de sus actividades y únicamente entrar donde hay espacio, sin tener clara la posibilidad de optimizar sus recursos. Es así como el uso de esta metodología (Lean Construction), genera una oportunidad de negocio. Parte del estudio realizado, es determinar el grado de rivalidad de los competidores en el mercado de implementación de oficinas, es así, que se comprobó la fragmentación del mercado de implementación de oficinas, es decir, compiten muchas empresas, pero ninguna tiene gran participación en el mercado. Por este motivo, es necesario agrupar el mercado por líneas de negocio y centrarse en empresas que brinden servicios similares o iguales con una estrategia basada en costos. Los clientes potenciales serán empresas de manufactura, logística, consumo masivo, informática y telecomunicaciones, que se encuentren buscando nuevas ubicaciones para trasladar sus oficinas administrativas, mayormente en los distritos de Surco, La Molina y Magdalena del Mar.
9

Implementación de Planeamiento Específico para Proyectos de Viviendas de Sector a con Tiempo reducido de Ejecución

Romero Borda, Anthony Nicasio, Tullume Uceda, Víctor Miguel, Fernández Dávila Zúñiga, Claritza Alejandra, Gómez Plasencia, Richard Jhosimar 02 December 2019 (has links)
Teniendo en cuenta la demanda actual de viviendas en el Sector A en Lima Metropolitana, así como la aplicación de diferentes metodologías en el sector construcción con el propósito de desarrollar proyectos dentro del costo, tiempo y de calidad planeados, es que se ha tomado como objeto de estudio el proyecto de construcción de un edificio de vivienda bifamiliar del sector A, con un plazo de ejecución de 6 meses, considerando un alcance de construcción hasta la etapa Casco y en la modalidad de Suma Alzada. El objetivo del presente trabajo de investigación es desarrollar un planeamiento específico para proyectos de vivienda en el sector A en un tiempo reducido para minimizar los sobrecostos y cumplir con el plazo de obra. Por tal motivo, se han identificado los problemas suscitados durante la construcción de la obra, entre los que se encuentran las incompatibilidades del proyecto, inadecuado planeamiento, cambios en el diseño, cambios de alcance y retrabajos en obra. Seguidamente se ha diagnosticado la repercusión de estos problemas en el presupuesto meta, plazo de ejecución y calidad de la edificación, para finalmente elaborar un plan de acción en donde se presenta de manera detallada el Organigrama de obra, el EDT y Cronograma de obra, Modelado y sectorización, gestión de riesgos y cambios aplicados al proyecto y por último un Diagrama de Pareto aplicado al presupuesto meta. Finalmente se realiza la evaluación del costo de implementación del plan de acción con el propósito de que se pueda ser aplicable a otras construcciones de similares características. / Taking into account the current demand for housing in Sector A in Metropolitan Lima, as well as the application of different methodologies in the construction sector with the purpose of developing projects within the planned cost, time and quality, is that it has been taken as a study object the construction project of a two-family housing building in Sector A, with an execution time of 6 months, considering a scope of construction until the Casco stage and in the modality of “Suma Alzada”. The objective of this research work is to develop a specific planning for housing projects in sector A in a reduced time to minimize cost overruns and meet the construction deadline. For this reason, the problems that have arisen during the construction of the work have been identified, among which are the incompatibilities of the project, inadequate planning, changes in design, changes in scope and rework on site. Next, the repercussion of these problems on the target budget, execution time and quality of the building was diagnosed, and finally an action plan was drawn up, in which the work organization chart, the WBS and work schedule, modeling and sectoring, risk management and changes applied to the project were presented in detail, and finally a Pareto diagram applied to the target budget. Finally, the cost of implementing the action plan is evaluated so that it can be applied to other constructions of similar characteristics. / Trabajo de investigación
10

An integrated approach toward lean for production homebuilders

Yu, Haitao Unknown Date
No description available.

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