New Developments in Curtain Wall and Glazing Systems

Memari, Ali M.

doi:10.1061/9780784412701.ch11

Cited by 8 publications

(12 citation statements)

References 13 publications

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“…Eurocode 8 [17] offers permissible inter storey drift ratio values for damage control in non-structural elements under various conditions: 0.5%, 0.75% and 1% for brittle nonstructural elements attached to the structure and for ductile non-structural elements or those integrated without obstructing structural deformation, respectively. New Zealand standard for structural design actions, NZS 1170.5 [18], dictates that a glass CW is considered to have failed when the relative displacement attains the larger of [15]. two values: either 1/250 of the span or twice the width of the glass clearance.…”

Section: Seismic Eventsmentioning

confidence: 99%

“…This dynamic assessment, conducted with incremental concatenated sine waves following a crescendo pattern as depicted in Figure 5, mimics the stress dynamics experienced during seismic events. According to the protocol (more details about the incremental step loads can be found in [15]), the crescendo test should continue until one of these conditions is met: (1) a glass piece with an area of at least 645 mm 2 falls out, (2) the drift index (defined as the lateral displacement at the top of the glass panel divided by the glass panel height) is equal to or exceeds 0.1 (equivalent to 10%) or (3) a maximum racking displacement of 152.4 mm is reached. These criteria determine when the test concludes.…”

Section: Illustration Of Geometric Parameters To Determine Drift At I...mentioning

confidence: 99%

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Review on Glass Curtain Walls under Different Dynamic Mechanical Loads: Regulations, Experimental Methods and Numerical Tools

Momeni,

Bedon

2024

Civil Engineering

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This chapter explores the behaviour and performance of glass curtain wall systems under various dynamic mechanical loads, including seismic, wind and impulsive loads. The classification of glass facade systems, comprising framed and frameless types, is first shortly discussed, along with their core components such as glass panels and frames. The challenges posed by glass material, including its vulnerability to impact, stress peaks and extreme loads, are acknowledged. The study further delves into various design standards and regulations for glass facade systems under dynamic loads, addressing seismic events and wind and impulsive loads and hence outlining parameters for assessment, performance criteria, and design considerations in use of glass curtain walls. Additionally, numerical methods are explored as effective tools for simulating and analysing the mechanical response of glass curtain walls under dynamic loads. The utility of these methods is showcased through a case study involving the Finite Element (FE) modelling of a glass curtain wall system exposed to a lateral in-plane load. The results of FE analysis are then compared with literature experimental results, which indicates its capacity to anticipate structural responses and even complex mechanisms under dynamic loads.

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Section: Seismic Eventsmentioning

confidence: 99%

Section: Illustration Of Geometric Parameters To Determine Drift At I...mentioning

confidence: 99%

Review on Glass Curtain Walls under Different Dynamic Mechanical Loads: Regulations, Experimental Methods and Numerical Tools

Momeni,

Bedon

2024

Civil Engineering

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“…The curtain wall has become an icon of developing cities. These structural elements are often the subject of analysis, and many researchers see the enormous energy-saving potential [20]. Apart from the disadvantage of summer overheating, these fully glazed systems also have a positive side.…”

Section: Solar Gains Through Transparent Surfacesmentioning

confidence: 99%

A review of building envelope constructions designed for demanding operating and climatic conditions

Dicka,

Katunsky,

Dolnikova

2023

MATEC Web Conf.

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Under the term demanding climatic conditions in connection with the topic, we can primarily imagine the excessive overheating of buildings in summer and on the other hand the exposure of the building to low temperatures in winter. Considering the extreme climatic conditions, the design of the building requires an individual approach. First of all, it is necessary to pay increased attention to the envelope structures such as roof and perimeter walls. The building can also be affected by other extreme conditions such as solar radiation and associated excessive lighting, i.e. glare in the work environment. This topic is increasingly coming to the fore due to climate change. Summer seasons are getting warmer and this problem is getting even worse. Even in locations where this issue has never been dealt with before. The article summarizes the conducted research related to the issue of overheating and excessive lighting of buildings. It also informs about how researchers in Slovakia and different locations around the world deal with this problem.

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“…Curtain wall is a non-load bearing element of the building envelope that serves the primary function of separating the roofed and conditioned space of the building from its unconditioned surrounding (Martabid and Mourgues, 2015). It has been identified as a building element which may critically impact LCA of a building (Memari, 2013). In addition, curtain walls can be made from a diverse range of materials, each with different lifespans, designs and technologies, and thus different performance (Kazmierczak, 2010).…”

Section: Case Studymentioning

confidence: 99%

BIM-enabled sustainability assessment of material supply decisions

Ahmadian

Rashidi

Akbarnezhad

et al. 2017

ECAM

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Purpose Enhancing sustainability of the supply process of construction materials is challenging and requires accounting for a variety of environmental and social impacts on top of the traditional, mostly economic, impacts associated with a particular decision involved in the management of the supply chain. The economic, environmental, and social impacts associated with various components of a typical supply chain are highly sensitive to project and market specific conditions. The purpose of this paper is to provide decision makers with a methodology to account for the systematic trade-offs between economic, environmental, and social impacts of supply decisions. Design/methodology/approach This paper proposes a novel framework for sustainability assessment of construction material supply chain decisions by taking advantage of the information made available by customized building information models (BIM) and a number of different databases required for assessment of life cycle impacts. Findings The framework addresses the hierarchy of decisions in the material supply process, which consists of four levels including material type, source of supply, supply chain structure, and mode of transport. The application is illustrated using a case study. Practical implications The proposed framework provides users with a decision-making method to select the most sustainable material alternative available for a building component and, thus, may be of great value to different parties involved in design and construction of a building. The multi-dimensional approach in selection process based on various economic, environmental, and social indicators as well as the life cycle perspective implemented through the proposed methodology advocates the life cycle thinking and the triple bottom line approach in sustainability. The familiarity of the new generation of engineers, architects, and contractors with this approach and its applications is essential to achieve sustainability in construction. Originality/value A decision-making model for supply of materials is proposed by integrating the BIM-enabled life cycle assessment into supply chain and project constraints management. The integration is achieved through addition of a series of attributes to typical BIM. The framework is supplemented by a multi-attribute decision-making module based on the technique for order preference by similarity to ideal solution to account for the trade-offs between different economic and environmental impacts associated with the supply decisions.

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New Developments in Curtain Wall and Glazing Systems

Cited by 8 publications

References 13 publications

Review on Glass Curtain Walls under Different Dynamic Mechanical Loads: Regulations, Experimental Methods and Numerical Tools

Review on Glass Curtain Walls under Different Dynamic Mechanical Loads: Regulations, Experimental Methods and Numerical Tools

A review of building envelope constructions designed for demanding operating and climatic conditions

BIM-enabled sustainability assessment of material supply decisions

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