Finnish architects' attitudes towards multi-storey timber-residential buildings

Ilgın, Hüseyin Emre; Karjalainen, Markku; Pelsmakers, Sofie

doi:10.1108/ijbpa-04-2021-0059

Cited by 20 publications

(18 citation statements)

References 49 publications

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“…Due to the ongoing urbanization and technological developments, the number of tall and supertall buildings (≥300m high) in the world is increasing exponentially (Karjalainen et al, 2021;Tulonen et al, 2021;Ilgın, 2022;Ilgın et al, 2022a;Ilgın and Karjalainen, 2022). In the initial phase of tall building construction, building designs were simple and most of the tall buildings had regular traditional configurations e.g., square, and rectangular prisms (Ilgın and Günel, 2007).…”

Section: Introductionmentioning

confidence: 99%

Use of aerodynamically favorable tapered form in contemporary supertall buildings

Ilgın

2022

DRArch

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Today, supertall buildings can be constructed in unusual forms as a pragmatic reflection of advances in construction techniques and engineering technologies, together with advanced computational design tools for architectural design. As with many other buildings, architectural and practical principles play a crucial role in the form of a supertall building, where aerodynamic behavior shaped by wind-induced excitations also becomes a critical design input. Various methods are used to meet the functional needs of these towers and reduce excitations, including aerodynamic modification methods directly related to the building form. Tapered forms are one of the most frequently used and most effective methods in today's skyscrapers, which significantly affect architectural design. To date, no study has been conducted in the literature that provides an understanding of the interrelationships between tapered building forms and main planning criteria, considering the aerodynamic design concerns of the tapering effect in supertall buildings (≥300 m). This important issue is explored in this article with data gathered from 41 supertall case studies, considering location, function, structural system, and structural material as well as the aerodynamic taper effect. The main findings of the study highlighted the following: (1) Asia was where tapered towers were most favored, with a wider margin in all regions; (2) mixed-use was the most preferred function in selected supertall buildings with tapered form; (3) outriggered frame systems were mainly used; (4) tapered supertall cases were mostly built in composite; (5) the sample group included 17 cases that used the tapering effect with aerodynamic design concerns, some of which were accompanied by corner modifications. It is believed that this study will be a basic guide for design and construction professionals including architectural and structural designers, and contractors.

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Section: Introductionmentioning

confidence: 99%

Use of aerodynamically favorable tapered form in contemporary supertall buildings

Ilgın

2022

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“…Urbanization and concentration trends have been changing, and the importance of residential properties and housing conditions has increased significantly during the coronavirus disease (COVID-19) pandemic [34,35]. In the post-pandemic environment, people have started to prefer low-density urban housing and new communities rather than high-density urban centers [36].…”

Section: Introductionmentioning

confidence: 99%

The Current State of the Finnish Cottage Phenomenon: Perspectives of Experts

Häkkänen¹,

Ilgın²,

Karjalainen³

2022

Buildings

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To date, studies that provide a comprehensive understanding of the current state of the cottage in Finland are lacking in the literature. This paper explored this phenomenon, which has great cultural and economic importance for Finland, through interviews from the perspective of experts. Key findings based on main themes including cottage buyers, characteristics of the dream cottage, diversified cottages, the regulation of cottages in municipalities, and challenges in the regulation of cottages, highlighted that: (1) cottage buyers were reported to be mostly in their 50s and wealthy; (2) buyers were in high demand for easy solutions and cottages with a similar level of equipment to a primary home; (3) environmental issues were considered interesting, but buyers primarily paid attention to the cleanliness of the nature and especially the body of water surrounding their cottage; (4) distance to the cottage and closest services were deciding factors, and there was greater demand for waterfront cottages; (5) popular cottage sizes varied widely, and the diversification was among the highlights; (6) while changes in use were possible under certain circumstances, sewage and wastewater regulation, and sizing of beach construction were considered challenging. It is believed that this paper will contribute to the balanced territorial development of cottages in Finland and the vitality of cottage-rich municipalities.

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“…Since the 1990s, strong emphasis has been placed on increasing the development of the wood construction business, removing regulatory barriers and increasing the business development of wood construction companies [ 79 , 81 ]. On the other hand, the Finnish concrete industry, which has led the building construction market for many years, due to its routine, strong presence, and networking in both public and private organizations [ 82 , 83 ], has faced new challenges such as eco-friendly standards, people’s perception of sustainability, and the coziness of the building as in wooden multi-story apartment buildings [ 84 , 85 ].…”

Section: Introductionmentioning

confidence: 99%

Comparative Study on Life-Cycle Assessment and Carbon Footprint of Hybrid, Concrete and Timber Apartment Buildings in Finland

Rinne

Ilgın

Karjalainen

2022

IJERPH

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To date, in the literature, there has been no study on the comparison of hybrid (timber and concrete) buildings with counterparts made of timber and concrete as the most common construction materials, in terms of the life cycle assessment (LCA) and the carbon footprint. This paper examines the environmental impacts of a five-story hybrid apartment building compared to timber and reinforced concrete counterparts in whole-building life-cycle assessment using the software tool, One Click LCA, for the estimation of environmental impacts from building materials of assemblies, construction, and building end-of-life treatment of 50 years in Finland. Following EN 15978, stages of product and construction (A1–A5), use (B1–B6), end-of-life (C1–C4), and beyond the building life cycle (D) were assessed. The main findings highlighted are as following: (1) for A1–A3, the timber apartment had the smallest carbon footprint (28% less than the hybrid apartment); (2) in A4, the timber apartment had a much smaller carbon footprint (55% less than the hybrid apartment), and the hybrid apartment had a smaller carbon footprint (19%) than the concrete apartment; (3) for B1–B5, the carbon footprint of the timber apartment was larger (>20%); (4) in C1–C4, the carbon footprint of the concrete apartment had the lowest emissions (35,061 kg CO2-e), and the timber apartment had the highest (44,627 kg CO2-e), but in D, timber became the most advantageous material; (5) the share of life-cycle emissions from building services was very significant. Considering the environmental performance of hybrid construction as well as its other advantages over timber, wood-based hybrid solutions can lead to more rational use of wood, encouraging the development of more efficient buildings. In the long run, this will result in a higher proportion of wood in buildings, which will be beneficial for living conditions, the environment, and the society in general.

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Finnish architects' attitudes towards multi-storey timber-residential buildings

Cited by 20 publications

References 49 publications

Use of aerodynamically favorable tapered form in contemporary supertall buildings

Use of aerodynamically favorable tapered form in contemporary supertall buildings

The Current State of the Finnish Cottage Phenomenon: Perspectives of Experts

Comparative Study on Life-Cycle Assessment and Carbon Footprint of Hybrid, Concrete and Timber Apartment Buildings in Finland

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