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A methodology to Develop an Integrated Engineering System to Estimate Quantities for Bridge Repairs at the Pre-Design StageThaesler-Garibaldi, Maria P. 21 April 2005 (has links)
A Damage Assessment Model, Construction Process Model and Parametric Quantity Model were developed with the purpose of capturing the engineering knowledge involved in the estimating process of bridge repair construction projects.
The Damage Assessment Model was used to create a sample database in which detailed inspection data was stored in a format compatible with the existing Pontis?tabase. Detailed inspection data, which provided quantitative values for the different damage types observed in bridges, could be retrieved from the sample database so that data could be used as either input parameters in the knowledge rules that triggered the selection of construction tasks in the Construction Process Model, or data could be used as variables in the equations used to estimate quantities in the Parametric Quantity Model.
The Construction Process Model was used to incorporate the logic behind the construction process for different repair methods. The Construction Process Model was composed of seven repair matrices that defined specific repair methods for each Pontis?idge element. Construction tasks were grouped in construction modules that were modeled as flowcharts. Each construction module flowchart was composed of construction tasks arranged in sequential order and decision points that triggered the selection of construction tasks based on input parameters and knowledge rules. Input parameters were provided by the user, retrieved from the model or pre-defined in the model by expert knowledge. The construction modules developed involved construction tasks related to the repair of concrete bridge piles that were damaged due to reinforcement corrosion and related concrete deterioration. Data describing the construction tasks that were considered in the construction module flowcharts were modeled using the entity-relationship model and were stored in the sample database described previously.
The Parametric Quantity Model combined data generated by the Damage Assessment Model and the Construction Process Model with additional expert knowledge and parameters into equations that were used to estimate quantities.
The author investigated the use of neural networks as a tool to predict actual damage in bridge piles, conducted a preliminary survey to define labor productivity factors and collected data to define the duration of construction activities related to bridge repair.
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Propuesta de clasificación tipológica de colegios con criterios de eficiencia energética. Estudio del caso de la ciudad de Valencia a través de la metodología del coste óptimo.Liébana Durán, María Esther 21 October 2021 (has links)
[ES] La Unión Europea se ha fijado como objetivo en su marco estratégico a largo plazo establecer un sistema energético sostenible, competitivo, seguro y descarbonizado para 2050. Busca alcanzar una economía próspera, competitiva y neutra desde el punto de vista del clima.
En Europa, el parque inmobiliario es el responsable del 36% de las emisiones de gases de CO2 y casi el 50% del consumo de energía final se destina a calefacción y refrigeración, del cual, el 80% es consumido en edificios. Esto significa que la renovación del parque inmobiliario, mejorando su eficiencia energética y descarbonizándolo, juega un papel fundamental para alcanzar los objetivos marcados en las principales agendas internacionales.
Para transformar el parque existente hace falta definir estrategias de intervención eficientes con medidas específicas, cuantificables que atiendan de forma individualizada a la singularidad de cada tipología de edificio, según su uso y actividad.
La presente investigación se centra en estudiar energéticamente los edificios escolares públicos de Valencia a través de la metodología del coste óptimo contemplada en el reglamente delegado de la directiva europea de eficiencia energética. Se propone un sistema de clasificación de los colegios por tipos, se definen una serie de medidas de mejora de la envolvente térmica para los edificios representativos del conjunto y se analizan energéticamente.
Con los resultados obtenidos sobre el consumo energético y los costes globales de los edificios para un periodo de 30 años, se determina el conjunto de medidas de intervención más eficiente para cada tipo de edificio. En definitiva, se identifican las actuaciones de mejora que con un menor coste económico permiten alcanzar una mayor reducción del consumo de energía primaria. / [CA] La Unió Europea s'ha fixat com a objectiu en el seu marc estratègic a llarg termini establir un sistema energètic sostenible, competitiu, segur i descarbonitzat per al 2050. Busca arribar a una economia pròspera, competitiva i neutra des del punt de vista del clima.
A Europa, el parc immobiliari és el responsable de el 36% de les emissions de gasos de CO2 i gairebé el 50% del consum d'energia final es destina a calefacció i refrigeració, de el qual, el 80% és consumit en edificis. Això vol dir que la renovació de parc immobiliari, millorant la seva eficiència energètica i descarbonitzandol, juga un paper fonamental per assolir els objectius marcats en les principals agendes internacionals.
Per transformar el parc existent cal definir estratègies d'intervenció eficients amb mesures específiques, quantificables que atenguen de forma individualitzada a la singularitat de cada tipologia d'edifici, segons el seu ús i activitat.
La present investigació se centra en estudiar energèticament els edificis escolars públics de València a través de la metodologia de el cost òptim prevista en el reglament delegat de la directiva europea d'eficiència energètica. Es proposa un sistema de classificació dels col·legis per tipus, es defineixen una sèrie de mesures de millora de l'envolvent térmica per als edificis representatius del conjunt i s'analitzen energèticament.
Amb els resultats obtinguts sobre el consum energètic i els costos globals dels edificis per a un període de 30 anys, es determina el conjunt de mesures d'intervenció més eficient per a cada tipus d'edifici. En definitiva, s'identifiquen les actuacions de millora que amb un menor cost econòmic permeten aconseguir una major reducció del consum d'energia primària. / [EN] The European Union, within a long-term strategic framework, has set a goal to establish a sustainable, competitive, safe and decarbonised energy system by 2050. With this, it seeks to achieve a prosperous, thriving and climate-neutral economy.
In Europe, the building stock is responsible for causing 36% of CO2 gas emissions, and almost 50% of final energy consumption is used for heating and cooling, of which 80% is used in buildings. This means that a renovation of the building stock, by enhancing energy efficiency and decarbonising buildings, plays a vital role to reach objectives set by key international agendas.
In order to transform the existing building stock, it is essential to identify efficient action strategies through specific, quantifiable measures according to the uniqueness of each building type, based on different usages and function.
This research is focused on looking into public school buildings in Valencia energetically through a cost-optimal methodology, which is part of the delegated regulation within the European Directive on Energy Efficiency. A system for classifying school buidings according to typology is proposed, a series of measures to enhance thermal envelopes are identified for representative buildings of the whole, and they are energetically analysed.
With the results obtained concerning energy consumption in buildings and 30-year global cost, a highly efficient set of measures to take for each building type is established. All in all, those improvement actions with a lower economic cost and the subsequent greater reduction in primary energy consumption are identified. / Liébana Durán, ME. (2021). Propuesta de clasificación tipológica de colegios con criterios de eficiencia energética. Estudio del caso de la ciudad de Valencia a través de la metodología del coste óptimo [Tesis doctoral]. Universitat Politècnica de València. https://doi.org/10.4995/Thesis/10251/175193 / Premios Extraordinarios de tesis doctorales
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