Study of Pre Conditional Survey of Existing Building During Tunneling Process

Having in mind the objectives of the United Nations Development Agenda 2030, which refers to the sustainable principles of a circular economy, it is urgent to improve the performance of the built environment. The existing buildings must be preserved and improved in order to reduce their environmental impact, in line with the need to revert climate change and reduce the occurrence of natural disasters. This work had as its main goal to identify and define a methodology for promoting the rehabilitation of buildings in the Ponte Gêa neighborhood, in the city of Beira, Mozambique, with an emphasis on energy efficiency, water efficiency, and construction and demolition waste management. The proposed methodology aims to create a decision support method for creating strategic measures to be implemented by considering the three specific domains—energy, water, and waste. This model allows for analyzing the expected improvement according to the action to be performed, exploring both individual and community solutions. It encompasses systems of standard supply that can reveal greater efficiency and profitability. Thus, the in-depth knowledge of the characteristics of urban space and buildings allows for establishing guidelines for the renovation process of the neighborhood.

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An Analytical Approach for the Selection of Technologies to be Integrated in a Plug&play Façade Unit: The RenoZEB Case Study

Proceedings ◽

10.3390/proceedings2020065029 ◽

2021 ◽

Vol 65 (1) ◽

pp. 29

Author(s):

Alessandro Pracucci ◽

Sara Magnani ◽

Laura Vandi ◽

Oscar Casadei ◽

Amaia Uriarte ◽

...

Keyword(s):

Building Envelope ◽

Design System ◽

Decision Matrix ◽

Design Guideline ◽

Existing Building ◽

Building Conditions ◽

Zero Energy Building ◽

System A ◽

Selection Of

The nearly Zero Energy building (nZEB) renovation market is currently the key feature in the construction sector. RenoZEB aims to develop a systematic approach for retrofitting by assembling different technologies in a plug and play building envelope. This paper presents the methodology used to transform the RenoZEB concept in the design system. A multi-criteria decision matrix is used for the selection of the best façade technologies within the market while the analysis of the existing building conditions allows to develop a replicable approach for designing deep retrofitting intervention through a plug&play façade. The methodology appears to be a valuable support for the selection of technologies and allows to define a design guideline for the envelope.

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Optimal Renovation Strategies through Life-Cycle Analysis in a Pilot Building Located in a Mild Mediterranean Climate

Applied Sciences ◽

10.3390/app11041423 ◽

2021 ◽

Vol 11 (4) ◽

pp. 1423

Author(s):

José Manuel Salmerón Lissen ◽

Cristina Isabel Jareño Escudero ◽

Francisco José Sánchez de la Flor ◽

Miriam Navarro Escudero ◽

Theoni Karlessi ◽

...

Keyword(s):

Life Cycle ◽

Life Cycle Cost ◽

Mediterranean Climate ◽

Building Envelope ◽

Economic Life ◽

Hot Water ◽

Optimal Solutions ◽

Building Stock ◽

Existing Building ◽

The Cost

The 2030 climate and energy framework includes EU-wide targets and policy objectives for the period 2021–2030 of (1) at least 55% cuts in greenhouse gas emissions (from 1990 levels); (2) at least 32% share for renewable energy; and (3) at least 32.5% improvement in energy efficiency. In this context, the methodology of the cost-optimal level from the life-cycle cost approach has been applied to calculate the cost of renovating the existing building stock in Europe. The aim of this research is to analyze a pilot building using the cost-optimal methodology to determine the renovation measures that lead to the lowest life-cycle cost during the estimated economic life of the building. The case under study is an apartment building located in a mild Mediterranean climate (Castellon, SP). A package of 12 optimal solutions has been obtained to show the importance of the choice of the elements and systems for renovating building envelopes and how energy and economic aspects influence this choice. Simulations have shown that these packages of optimal solutions (different configurations for the building envelope, thermal bridges, airtightness and ventilation, and domestic hot water production systems) can provide savings in the primary energy consumption of up to 60%.

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Assessing the energy efficiency of a district’s existing building stock glazing – Case Study TU Dresden

IOP Conference Series Earth and Environmental Science ◽

10.1088/1755-1315/588/2/022024 ◽

2020 ◽

Vol 588 ◽

pp. 022024

Author(s):

Maartje Van Roosmalen ◽

Bernhard Weller

Keyword(s):

Energy Efficiency ◽

Building Stock ◽

Existing Building

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The Energy Savings Impact of the Existing Building Commissioning Process by Building Type

Science and Technology for the Built Environment ◽

10.1080/23744731.2021.1921492 ◽

2021 ◽

pp. 1-19

Author(s):

Alaina Ruffin ◽

David E. Claridge ◽

Juan-Carlos Baltazar

Keyword(s):

Energy Savings ◽

Existing Building ◽

Building Type ◽

Building Commissioning

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Evaluation of the Legal Framework for Building Fire Safety Regulations in Spain

Buildings ◽

10.3390/buildings11020051 ◽

2021 ◽

Vol 11 (2) ◽

pp. 51

Author(s):

Amaya Osácar ◽

Juan Bautista Echeverria Trueba ◽

Brian Meacham

Keyword(s):

Fire Safety ◽

Risk Mitigation ◽

Fire Risk ◽

Legal Framework ◽

Regulatory Framework ◽

Existing Building ◽

Building Fire ◽

Safety Regulations ◽

And Performance ◽

The Ideal

There is a trend in Europe towards increasing the quality and performance of regulations. At the same time, regulatory failure has been observed in the area of building fire safety regulation in England and elsewhere. As a result, an analysis of the appropriateness of fire safety regulations in Spain is warranted, with the objective being to assess whether a suitable level of fire safety is currently being delivered. Three basic elements must be considered in such analysis: the legal and regulatory framework, the level of fire risk/safety of buildings that is expected and the level which actually results, and a suitable method of analysis. The focus of this paper is creating a legal and regulatory framework, in particular with respect to fire safety in buildings. Components of an ”ideal” building regulatory framework to adequately control fire risk are presented, the existing building regulatory framework is summarized, and an analysis of the gaps between the ideal and the existing systems is presented. It is concluded that the gaps between the ideal and the existing framework are significant, and that the current fire safety regulations are not appropriate for assuring delivery of the intended level of fire risk mitigation.

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BIM and IoT Sensors Integration: A Framework for Consumption and Indoor Conditions Data Monitoring of Existing Buildings

Sustainability ◽

10.3390/su13084496 ◽

2021 ◽

Vol 13 (8) ◽

pp. 4496

Author(s):

Giuseppe Desogus ◽

Emanuela Quaquero ◽

Giulia Rubiu ◽

Gianluca Gatto ◽

Cristian Perra

Keyword(s):

Energy Consumption ◽

Low Cost ◽

Application Programming Interface ◽

Visual Programming ◽

Information Modeling ◽

Sensor Data ◽

Time Data ◽

Existing Building ◽

Building Maintenance ◽

Indoor Conditions

The low accessibility to the information regarding buildings current performances causes deep difficulties in planning appropriate interventions. Internet of Things (IoT) sensors make available a high quantity of data on energy consumptions and indoor conditions of an existing building that can drive the choice of energy retrofit interventions. Moreover, the current developments in the topic of the digital twin are leading the diffusion of Building Information Modeling (BIM) methods and tools that can provide valid support to manage all data and information for the retrofit process. This paper shows the aim and the findings of research focused on testing the integrated use of BIM methodology and IoT systems. A common data platform for the visualization of building indoor conditions (e.g., temperature, luminance etc.) and of energy consumption parameters was carried out. This platform, tested on a case study located in Italy, is developed with the integration of low-cost IoT sensors and the Revit model. To obtain a dynamic and automated exchange of data between the sensors and the BIM model, the Revit software was integrated with the Dynamo visual programming platform and with a specific Application Programming Interface (API). It is an easy and straightforward tool that can provide building managers with real-time data and information about the energy consumption and the indoor conditions of buildings, but also allows for viewing of the historical sensor data table and creating graphical historical sensor data. Furthermore, the BIM model allows the management of other useful information about the building, such as dimensional data, functions, characteristics of the components of the building, maintenance status etc., which are essential for a much more conscious, effective and accurate management of the building and for defining the most suitable retrofit scenarios.

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Implementation of BIM Modelling and Simulation Tools in Reducing Annual Energy Consumption of Multifamily Dwellings

E3S Web of Conferences ◽

10.1051/e3sconf/202017001002 ◽

2020 ◽

Vol 170 ◽

pp. 01002

Author(s):

Subbarao Yarramsetty ◽

MVN Siva Kumar ◽

P Anand Raj

Keyword(s):

Energy Efficient ◽

Energy Use ◽

Construction Materials ◽

Residential Building ◽

Energy Simulation ◽

Point Of View ◽

Rotational Angle ◽

Existing Building ◽

Simulation Tools ◽

Efficient Option

In current research, building modelling and energy simulation tools were used to analyse and estimate the energy use of dwellings in order to reduce the annual energy use in multifamily dwellings. A three-story residential building located in Kabul city was modelled in Revit and all required parameters for running energy simulation were set. A Total of 126 experiments were conducted to estimate annual energy loads of the building. Different combinations from various components such as walls, roofs, floors, doors, and windows were created and simulated. Ultimately, the most energy efficient option in the context of Afghan dwellings was figured out. The building components consist of different locally available construction materials currently used in buildings in Afghanistan. Furthermore, the best energy efficient option was simulated by varying, building orientation in 15-degree increments and glazing area from 10% to 60% to find the most energy efficient combination. It was found that combination No. 48 was best option from energy conservation point of view and 120-degree rotational angle from north to east, of the existing building was the most energy-efficient option. Also, it was observed that 60% glazing area model consumed 24549 kWh more electricity compared to the one with 10% glazing area.

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