Seismic Behavior Of Structural Silicone Glazing

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Seismic Behavior Of Structural Silicone Glazing

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Author : M. Gladstone
language : en
Publisher:
Release Date : 1996

Seismic Behavior Of Structural Silicone Glazing written by M. Gladstone and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996 with Code requirements categories.

In seismic events, glass curtain walls undergo racking deformation, while the flat glass lites do not rack due to their high shear stiffness. If the glass curtain wall is not isolated from the building frame by specifically designed connections that accommodate relative motion, seismic racking motion of the building frame will demand significant resiliency of the sealant that secures the glass to the curtain wall framing. In typical four-sided structural silicone glazing systems used in buildings with unbraced moment frames, the magnitude of seismic racking is likely to stress the sealants significantly beyond the sealant design strength.

Seismic Performance Of Two Side Structural Silicone Glazing Systems

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Author : AM. Memari
language : en
Publisher:
Release Date : 2006

Seismic Performance Of Two Side Structural Silicone Glazing Systems written by AM. Memari and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with Adhesives categories.

This paper presents the results of the first phase of an experimental research program on simulated seismic performance of structural silicone glazed (SSG) curtain wall systems. Full-scale, twoside SSG mockups made up of three side-by-side glass panels were tested under cyclic racking displacements to determine serviceability and ultimate behavior responses. Variables were glass type (annealed and fully tempered) and panel con.guration (monolithic, laminated, and insulating glass). In the experiments carried out, damage states such as gasket deformation/pullout, sealant failure (e.g., adhesion/cohesion, etc.), glass cracking glass and fallout were identi.ed and their corresponding drift levels were determined. The extent of damage to silicone sealant was determined through air leakage tests.

Science And Technology Of Building Seals Sealants Glazing And Waterproofing

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Author : James C. Myers
language : en
Publisher: ASTM International
Release Date : 1996

Science And Technology Of Building Seals Sealants Glazing And Waterproofing written by James C. Myers and has been published by ASTM International this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996 with Concrete categories.

A Review Of The Behavior Of Structural Silicone Glazing Systems Subjected To A Mega Earthquake

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Author : Errol Bull
language : en
Publisher:
Release Date : 2012

A Review Of The Behavior Of Structural Silicone Glazing Systems Subjected To A Mega Earthquake written by Errol Bull and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with Adhesives categories.

Structural silicone glazed (SSG) curtain wall systems have offered architects and owners the ability to design a facade with unique aesthetic features since the 1970s. While their ability to durably withstanding natural weathering and even high wind locations across the globe has been well established, their performance under seismic events is less well recorded. This paper presents a review of the performance of SSG systems following the 8.8 magnitude earthquake that shocked Chile in Feb 2010, which registered within the top five recorded in past history. Field reviews of existing low-, medium-, and high-rise buildings were inspected in the aftermath of the event to evaluate the performance of the different SSG variations of this system type (two-sided, four-sided, stick, unitized, among other variations) combined with other facade components such as: type of glazing, glass sizes, interstory drift, width of structural grid, slab/beam rigidity, etc.

Advanced Connection Systems For Architectural Glazing

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Author : Roham Afghani Khoraskani
language : en
Publisher:
Release Date : 2015

Advanced Connection Systems For Architectural Glazing written by Roham Afghani Khoraskani and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with Vibration categories.

This book presents the findings of a detailed study to explore the behavior of architectural glazing systems during and after an earthquake and to develop design proposals that will mitigate or even eliminate the damage inflicted on these systems. The seismic behavior of common types of architectural glazing systems are investigated and causes of damage to each system, identified. Furthermore, depending on the geometrical and structural characteristics, the ultimate horizontal load capacity of glass curtain wall systems is defined based on the stability of the glass components. Detailed attention is devoted to the incorporation of advanced connection devices between the structure of the building and the building envelope system in order to minimize the damage to glazed components. An innovative new connection device is introduced that results in a delicate and functional system easily incorporated into different architectural glazing systems, including those demanding maximum transparency.

Seismic Racking Test Evaluation Of Silicone Used In A Four Sided Structural Sealant Glazed Curtain Wall System

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Author : A. M. Memari
language : en
Publisher:
Release Date : 2012

Seismic Racking Test Evaluation Of Silicone Used In A Four Sided Structural Sealant Glazed Curtain Wall System written by A. M. Memari and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with Adhesives categories.

This paper presents the results of a study in which four-sided structural sealant glazing (SSG) insulating glass curtain wall units were subjected to cyclic racking test methods in accordance with AAMA 501.6 testing protocols. The test configuration included three side-by-side primary units and a corner unit. High-resolution cameras were utilized to capture instantaneous images during the racking test so that the displacement within the sealant joint could be captured and isolated from the displacement of the entire glazed unit. Drift capacity of the system in terms of glass attachment and sealant performance is reported in detail for different levels of racking displacements and boundary conditions. The overall behavior of the system is characterized, and specifically the sealant performance at a corner condition during racking drift is discussed. Additionally, expected strains in the sealant were calculated using a linear-elastic finite element model and were then compared with the strains the actual structural sealant joint underwent during system testing. Silicone sealant damage was evaluated using visual observation before and after cyclic racking. The paper discusses proposed acceptable sealant stress levels for seismic design and the durability of silicone used in the SSG system as compared to dry-glazed systems based on glass performance.

Durability Of Building And Construction Sealants And Adhesives

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Author : Andreas T. Wolf
language : en
Publisher: ASTM International
Release Date : 2006

Durability Of Building And Construction Sealants And Adhesives written by Andreas T. Wolf and has been published by ASTM International this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with Adhesives categories.

A Comparative Evaluation Of The Behavior Of Structural Silicone Vs Acrylic Foam Tape Subjected To High Strain Rates

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Author : Sarah J. H. Kuhlman
language : en
Publisher:
Release Date : 2015

A Comparative Evaluation Of The Behavior Of Structural Silicone Vs Acrylic Foam Tape Subjected To High Strain Rates written by Sarah J. H. Kuhlman and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with Acrylic tape categories.

Since the 1960s, silicone rubber has been used as an adhesive to bond glass/glass and glass/metal constructions for facades; an assembly method known as structural silicone glazing (SSG). More recently, an adhesive acrylic foam tape material has been promoted for the same use. SSG-type glazing systems transfer wind and other applied glazing loads, including those from seismic events, through the adhesive. Seismic events in particular impose loads into glazing systems which far exceed strain rates used in standardized laboratory testing protocols, and the behavior of these two materials under increased strain rates is interesting to consider for adhesively-bonded glazing designs in seismically-active regions. This paper presented data generated using specimens configured for testing in both a shear and a tension mode in which the geometry of the adhesive material in both specimen types was identical with the exception of thickness (the specimens were assembled in the thickness recommended by the product type). The shear specimens were of "lap shear" configuration, whereas the tensile specimens were a "cross tension" design, which mimics actual SSG joints more closely than have previous studies of similar materials. Specimens were tested to destruction at a standardized strain rate (ASTM; 50.8 mm/min (2 in./min)) and at two higher strain rate(s) in the range of those measured during high intensity seismic events with ground-based recording devices: 1100 mm/s (43 in./s) and 5000 mm/s (197 in./s). Comparisons are presented for a one and two-part structural silicone and one acrylic foam tape. Data is presented under freezing, elevated, and ambient temperature conditions.

Architectural Glass To Resist Seismic And Extreme Climatic Events

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Author : Richard A. Behr
language : en
Publisher: Elsevier
Release Date : 2009-09-14

Architectural Glass To Resist Seismic And Extreme Climatic Events written by Richard A. Behr and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-09-14 with Technology & Engineering categories.

Glass is a popular cladding material for modern buildings. The trend for steel-framed, glass-clad buildings instead of those using traditional materials such as brick and concrete has inherent problems. These include, for example, the performance of architectural glass in extreme climatic events such as windstorms and heavy snow loads and also during earthquakes. This book reviews the state-of-the-art in glass and glazing technology to resist failure due to these natural events. Building code seismic requirements for architectural glass in the United States are considered first of all, followed by a chapter on glazing and curtain wall systems to resist earthquakes. The next two chapters discuss snow loads on building envelopes and glazing systems, and types and design of glazing systems to resist snow loads. Wind pressures and the impact of wind-borne debris are then considered in the next group of chapters which also review special types of glazing systems to resist windstorms. A final chapter reviews test methods for the performance of glazing systems during earthquakes and extreme climatic events. With its distinguished editor and team of contributors, Architectural glass to resist seismic and extreme climatic events is an essential resource for architects, structural, civil and architectural engineers, researchers and those involved in designing and specifying building glazing and cladding materials in areas where severe windstorms, snow and earthquakes are a threat. Considers the state of the art in glass and glazing technology to resist failure due to extreme climatic events Reviews specific building techniques and test methods to enhance glazing performance during snow storms, wind storms and earthquakes

Advanced Connection Systems For Architectural Glazing

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Author : Roham Afghani Khoraskani
language : en
Publisher: Springer
Release Date : 2015-03-02

Advanced Connection Systems For Architectural Glazing written by Roham Afghani Khoraskani and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-03-02 with Technology & Engineering categories.

This book presents the findings of a detailed study to explore the behavior of architectural glazing systems during and after an earthquake and to develop design proposals that will mitigate or even eliminate the damage inflicted on these systems. The seismic behavior of common types of architectural glazing systems are investigated and causes of damage to each system, identified. Furthermore, depending on the geometrical and structural characteristics, the ultimate horizontal load capacity of glass curtain wall systems is defined based on the stability of the glass components. Detailed attention is devoted to the incorporation of advanced connection devices between the structure of the building and the building envelope system in order to minimize the damage to glazed components. An innovative new connection device is introduced that results in a delicate and functional system easily incorporated into different architectural glazing systems, including those demanding maximum transparency.