Ali Bahadori-Jahromi

Ali Bahadori-Jahromi
University of West London | UWL · School of Computing and Technology

PhD, MSc, BEng, FICE, CEng

About

61
Publications
41,648
Reads
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406
Citations
Additional affiliations
September 2019 - present
University of West London
Position
  • Professor

Publications

Publications (61)
Article
Full-text available
The growing awareness of the need to minimise greenhouse gas (GHG) and mitigate climate change has resulted in a greater focus on the embodied carbon (EC) of construction material. One way to ensure the environmental impact of building activities is minimised to a reasonable level is the calculation of their EC. Whilst there are a few studies inves...
Article
Full-text available
Studies have shown that the assumptions used to create dynamic thermal models of buildings do not reflect their actual energy use. Bridging the energy performance gap is vital in ensuring that a designed or retrofitted building meets the energy performance targets. Using thermal analysis simulation software TAS, this paper presents a simulation mod...
Article
Full-text available
Focus on climate change and extreme weather conditions has received considerable attention in recent years. Civil engineers are now focusing on designing buildings that are more eco-friendly in the face of climate change. This paper describes the research conducted to assess the impact of future climate change on energy usage and carbon emissions i...
Article
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This paper presents a unique study to reveal the effect of the mounting system of the linear variable differential transformer (LVDT) on the mechanical property tests of timber materials. This effect has been overlooked in the past but proven to be significant enough that will distort the measurements completely if the displacement is relatively sm...
Preprint
Full-text available
This paper presents a unique study to reveal the effect of the mounting system of the linear variable differential transformer (LVDT) on the mechanical property tests of timber materials. This effect has been overlooked in the past but proven to be significant enough that will distort the measurements completely if the displacement is relatively sm...
Article
This paper presents the experimental and analytical studies to investigate the effect of concentrated butt-joints on the flexural properties of laminated bamboo-timber flitch beam (BTFB, or bio-flitch beam). The experimental results reveal that the concentrated butt-joints significantly reduce the flexural strength of the BTFB. They also suggest th...
Preprint
Full-text available
This paper presents the experimental and analytical studies to investigate the impact of concentrated laminated bamboo butt-joints on the flexural properties of vertically laminated bamboo-timber hybrid beams (VLHBs, or flitch beam). The experimental results reveal that the concentrated butt-joints significantly reduce the flexural strength of the...
Article
Full-text available
Studies conducted by major national and international scientific bodies have indisputably concluded that the increase in anthropogenic greenhouse gas emissions (GHG) since the mid-20th century has led to irreversible changes in the climate. Data has shown that the contribution of the building sector accounts for 39% of these emissions. Reducing GHG...
Article
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In light of the recent launch of the Minimum Energy Efficiency Standard targeting the energy performance of commercial buildings, this study compares the energy performance certificates of three UK hotels generated by two different software, EDSL TAS and SBEM, both accredited by the UK government for the purpose. Upon finding the results discrepant...
Article
This paper presents an experimental investigation of the shear performance of RC beams strengthened with near surface mounted (NSM) carbon fibre reinforced polymer (CFRP) prestressed concrete prisms (PCPs). The shear behaviour of strengthened beams can be affected by several design variables. In this research, the effect of the following parameters...
Article
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During the past decades, the problem of finding leaks in Water Distribution Networks (WDN) has been challenging. The quicker detection of leaks, on one hand prevents water loss and helps avoiding economic and environmental leakage consequences. On the other hand, increasing the speed of leak detection increases the false leak detection that imposes...
Article
Full-text available
Citation: Hasan, A.; Bahadori-Jahromi, A.; Mylona, A.; Ferri, M.; Tahayori, H. Investigating the Potential Impact of Future Climate Change on UK Supermarket Building Performance. Sustainability 2021, 13, 33. https://dx.
Article
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The practice of splicing reinforcing bars in reinforced concrete structures to manage insufficient bar length is a common approach, which is mainly due to transportation limitations on bar length. The splicing of reinforcing bars side by side offers a simple and economical solution to the problem of continuity. This paper examines the influence of...
Technical Report
Full-text available
Executive summary This document presents a method for applying the nearly-zero energy building (nZEB) standard to existing UK commercial and residential buildings. The findings presented are based on analysis supported by dynamic simulation modelling of UK buildings, aiming to demonstrate the potential benefits but also highlight the risks associat...
Conference Paper
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The consumption of natural resources in various industrial sectors has caused significant environmental issues to the atmosphere through emission and energy cost due to the extraction and transportation of the materials, along with the availability and long-term damage to the natural resources. In order to address this issue, various solutions have...
Article
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In light of the recent launch of the Minimum Energy Efficiency Standard and its expected impact on the commercial buildings sector, this study investigated the impact of adding cooling systems on the annual energy consumption, carbon dioxide emissions and energy performance certificate (EPC) rating of an existing UK hotel. Thermal Analysis Software...
Article
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It is commonly known that commercial buildings contribute to a large proportion of energy consumption nationally and across Europe. The introduction of 'nearly zero energy buildings' (nZEBs) by the Energy Performance Building Directive [Recast] in 2010 has meant that a variety of active measures must be undertaken by the construction industry to de...
Conference Paper
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Plastic as an environmental burden is a well-rehearsed topic in the research area. This is due to its global demand and destructive impacts on the environment, which has been a significant concern to the governments. Typically, the use of plastic in the construction industry is seen across low-density, non-structural applications due to its diverse...
Article
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In order to fulfil the UK government's ambitious goal of 80% reductions in greenhouse gas emissions by 2050 compared to the levels of 1990s, unprecedented measures for improving the energy efficiency of buildings are needed. This study investigates the impact of a specific type of Low-emissivity (Low-E) window film-Thinsulate Climate Control 75-on...
Article
Full-text available
The existing non-residential building stock can generally be considered energy-inefficient. The ECUK 2017 report states that the final energy consumption for commercial buildings remained static. The 2010 recast Energy Performance Building Directive (EPBD) has set out a requirement for commercial and residential buildings to be nearly Zero Energy B...
Article
Full-text available
According to The Concrete Centre, in the UK shear walls have become an inseparable part of almost every reinforced concrete frame building. Recently, the construction industry has questioned the need for shear walls in low to mid-rise RC frame buildings. This study tried to address the issue in two stages: The first stage, the feasibility of removi...
Article
Full-text available
The existing non-residential building stock can generally be considered energy inefficient. The ECUK 2017 report states that the final energy consumption for commercial buildings remained static. The 2010 recast Energy Performance Building Directive (EPBD) has set out a requirement for commercial and residential buildings to be nearly Zero Energy B...
Article
Full-text available
Abstract The existing non-residential building stock can generally be considered energy-inefficient. The ECUK 2017 report states that the final energy consumption for commercial buildings remained static. The 2010 recast Energy Performance Building Directive (EPBD) has set out a requirement for commercial and residential buildings to be nearly Zero...
Article
Full-text available
The UK government is committed to reducing carbon dioxide emission levels by 80%, comparative to the 1990 baseline, by 2050. ‘Nearly-zero-energy buildings’ (nZEBs) were introduced by the Energy Performance Building Directive (recast) in 2010 as a realistic solution to the intrinsic environmental debt associated with most existing buildings. This pa...
Article
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The death toll of the 2003 heat wave in Europe exceeded 35,000 heat-related deaths. The elderly population were the most affected. The current paradigm within the construction industry in cold-dominant countries is to design/retrofit buildings with high levels of insulation. Whilst thermal comfort may be reached during colder months with this appro...
Article
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This study examines the risk of overheating of a school building, under extreme hot weather conditions, in 14 locations in the United Kingdom using the overheating criteria defined in Building Bulletin 101 (BB101). The building was modelled as naturally ventilated, mechanically ventilated and in mixed mode and was simulated both for the current and...
Article
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Several studies have highlighted Combine Heat and Power (CHP) systems to be one of the proven and reliable technologies that can improve the efficiency of heat and electricity generation. The extensive adoption of this type of technology is crucial in reducing building emissions globally and in the U.K. This work uses a dynamic simulation software...
Article
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In recent years there has been an increasing interest in the incorporation of distributed energy resource (DER) systems such as combined heat and power (CHP) and combined cooling, heating, and power (CCHP) in commercial building applications as they have shown considerable environmental and financial benefits when compared to conventional energy ge...
Article
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Abstract. It is currently agreed upon that one of the major challenges in the construction industry is the energy efficiency of existing buildings. The World Meteorological Organisation (WMO) and United Nations (UN) have reported that the concentration of global atmospheric carbon dioxide has increased by an average of 50%, a record speed, from 201...
Article
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Since London underground opened as the world’s pioneer underground railway, the network has grown exponentially to over 402km, servicing more than 1.34 billion customers annually. The rail network is over 150 years and is deteriorating, therefore, it is imperative that innovative maintenance techniques are implemented to inspect the condition of th...
Article
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The advantages of Double Skin Facade (DSF) systems, ranging from their aesthetic architectural benefits, acoustic benefits and ability to decrease the heating demand of the internal environment has increased their popularity in Europe since the mid-1980s. However, appropriate consideration must be accorded to its design to ensure their possible adv...
Article
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This paper is concerned with the role of fly ash (FA) content in the California bearing ratio (CBR) values of stabilised sandy soil for geotechnical and geoenvironmental infrastructure. A series of laboratory tests - particle size distribution and CBR tests, were performed. The literature review demonstrates the shortage of research on the stabilis...
Article
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Adverse effects of anthropogenic climate change has resulted in mitigation strategies geared towards curbing CO2 emissions. Consequently, this has increased demand for more energy efficient buildings. Considerable amounts of studies have shown the existence of a significant discrepancy between estimated energy consumption by thermal simulation soft...
Article
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Abstract: Recently, considerable attention has justifiably been directed towards energy savings in buildings as they account for up to 20–40% of total energy consumption in developed countries. In the United Kingdom, studies have revealed that buildings’ CO2 emissions for account for at least 43% of total emissions. Window panels are a major compon...
Article
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Abstract. The phenomenon of concrete column shortening has been widely acknowledged since it first became apparent in the 1960s. Axial column shortening is due to the combined effect of elastic and inelastic deformations, shrinkage and creep. This study aims to investigate the effects of ambient temperature, relative humidity, cement hardening spee...
Article
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The latest UK Climate Projections (UKCP09) show that mean daily temperatures will increase everywhere in the United Kingdom. This will significantly affect the thermal and energy performance of the current building stock. This study examines an institutional fully glazed building and looks into the changes in the cooling loads and thermal comfort o...
Article
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This paper presents the results of an experimental investigation carried out to evaluate the effect of fly ash (FA) on fine sand compaction and its suitability as a material for embankments. The literature review demonstrates the lack of research on stabilization of sandy material using FA. The study is concerned with the role of FA content in stab...
Conference Paper
Full-text available
There is clear evidence to show that climate change is happening. According to the UK Climate Projections (UKCP09) we can expect warmer and wetter winters, hotter and drier summers, rising sea levels and more extreme weather events. These extreme weather events in the UK are likely to increase with rising temperatures, causing among others heavier...
Article
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Traditional reinforced concrete slabs and beams are widely used for building. The use of flat slab structures gives advantages over traditional reinforced concrete building in terms of design flexibility, easier formwork and use of space and shorter building time. Deflection of the slab plays a critical role on the design and service life of buildi...
Article
Full-text available
Traditional reinforced concrete slabs and beams are widely used for building. The use of flat slab structures gives advantages over traditional reinforced concrete building in terms of design flexibility, easier formwork and use of space and shorter building time. Deflection of the slab plays a critical role on the design and service life of buildi...
Article
Full-text available
Though uncertainties of input variables may have significant implications on building simulations, they are quite often not identified, quantified, or included in building simulations results. This paper considers climatic deterministic, uncertainty, and sensitivity analysis through a series of simulations using the CIBSE UKCIP02 future weather yea...
Conference Paper
Full-text available
Concrete flat slabs structures are economic and the most popular form of concrete used in multi-storey structures. Deflection of slabs is a principal criterion in design, it governs thickness, which in turn has significant economic impact. Deflection is usually controlled by limiting span/depth ratio. This paper reviews the history of the span-to-d...
Article
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The prime goal of professionals in the built environment is to build cost-effective, environmentally sustainable buildings. This work focuses on the viability of passive solar design strategies of conservatories in the UK in mitigating the impact of future climate change. It further shows that passive solar energy utilisation in building design can...
Article
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The credibility and confidence in usage of a simulation program must be underpinned by an acceptably robust validation process. Over the years, various techniques have been employed to validate thermal simulation programs of buildings to facilitate continuous improvement of software development and acceptability. This study introduces the Bland-Alt...
Conference Paper
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Abstract. The prime goal of professionals in the built environment is to develop cost effective sustainable buildings which contribute to the attainment of climate change mitigation goals, facilitate the achievement of indoor thermal comfort and reduction of building energy demand. This work focuses on the viability of passive solar design strategi...
Article
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The quest for enhanced thermal comfort for dwellings encompasses the holistic utilization of improved building fabric, impact of weather variation and amongst passive cooling design consideration the provision of appropriate ventilation and shading strategy. Whilst thermal comfort is prime to dwellings considerations, limited research has been done...
Conference Paper
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The government’s construction strategy requires construction projects for central government to implement level 2 building information modelling as a minimum by 2016. Since it was published, a number of specifications, plans and processes have been released. Government has been involved in their production through being part of steering groups and...
Article
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Global demand for dwelling energy and implications of changing climatic conditions on buildings confront the built environment to build sustainable dwellings. This study investigates the variability of future climatic conditions on newly built detached dwellings in the UK. Series of energy modelling and simulations are performed on ten detached hou...
Article
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The use of sustainable drainage systems (Suds) forms an important part of the requirement to conserve natural resources in an age of ever-increasing consumption. This paper explores the options available in the design of drainage systems, by virtue of a project to design two systems for a greenfield site with office and car parking. One design is a...
Article
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For buildings subjected to blast loading, structural failure can be categorized into local failure (direct blast effects) and progressive collapse (consequential effects). In direct blast effects, the intensive blast pressures create localized failure of structural elements such as exterior columns and walls. Columns, and their behaviour, play a ke...
Article
Full-text available
After successive global environmental conferences in which national governments pledged to reduce carbon emissions, there is ever-increasing scrutiny on the construction industry. This is because the energy used in the production of building materials and subsequently required to power a completed building form a substantial part of the overall car...
Book
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This research describes the fabrication and investigation of new engineered wood products (EWP) called Composite Insulated Beams (CIB). The CIBs were tested to determine their structural performance, long term durability, thermal and dynamic behaviours. CIBs combine the efficiency of sandwich panels with existing engineered wood products to produce...
Article
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The introduction of engineered beams offers long span, low cost and light weight joists in comparison to traditional solid timber sections. However, the vibration criteria in the design codes may significantly reduce the permissible span of the joists for domestic construction. This paper investigates the influence of geometric and material variabi...
Article
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The introduction of engineered beams offered longer span, lower cost joists in comparison to traditional solid timber sections; however, vibration criteria in the design codes may significantly reduce the permissible span of joists for domestic construction. This research is concerned with the structural performance of engineered, multi-webbed, com...
Article
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This paper describes a study on the effects of injected polyurethane foam on the structural performance and durability of ply-webbed composite timber beams. The beams comprised timber or LVL flanges with 9mm thick three-ply plywood webs. Profiles considered included Double-I, Box, recess, Boxed-I and Boxed double-I, beams in 2.10m and 4.35 m spans...
Article
This paper compares the structural performance of nine different light composite timber beams including I-beams. Beams were made with 9 mm plywood webs, which were glued to timber/LVL flanges. Finished beams had 'I' or rectangular cross sections with a height of 290 mm and width of 88 mm or 106 mm depending on their cross section. The differences b...
Article
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This paper investigates the strength and deformation characteristics of lightweight timber composite beams manufactured with six different cross-sectional profiles in comparison with readily available laminated veneer lumber (LVL) and glued-laminated (Glulam) beams. All engineered profiles comprised solid timber or LVL flanges and three-ply plywood...
Patent
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The invention relates to structural support beams for use in building and construction, which possess structural characteristics suitable for use as load-bearing flexural members. The support beam comprises a timber support frame formed from two spaced apart flanges connected by at least two outer support webs. Optionally one or more further inner...
Conference Paper
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Abstract: This paper describes the developing and evaluating method of medium strength self-compacting concrete (MS-SCC) by incorporation of pulverised fuel ash (PFA). This study aims to facilitate the experimental tests required to optimise MS-SCC, by reducing the number of trial mixes needed to achieve optimum balance among various mixture variab...

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