Point-Fixed Glass Facade Systems

Point-fixed glass facade systems, also known as spider glass systems or spider fittings, are a popular choice in modern architecture for creating sleek, transparent, and visually striking building exteriors. These systems use point-fixing technology to secure glass panels to the building structure, minimizing the need for visible framing elements and enhancing transparency. Here's an overview of point-fixed glass facade systems:

Components

Glass Panels High-quality tempered or laminated glass panels are used as the primary building material in point-fixed facade systems. These panels are typically supported at their corners or along their edges by specialized fittings.

Spider Fittings Spider fittings are mechanical components made of stainless steel or aluminum that connect the glass panels to the building structure. They come in various designs, including single-arm, two-arm, and four-arm configurations, and are attached to the building via bolts or anchors.

Tension Rods or Cables In some point-fixed systems, tension rods or cables are used to support the glass panels from above. These rods or cables are anchored to the building structure and provide additional stability and load-bearing capacity.

Installation Process

Point-fixed glass facade systems require precise engineering and installation to ensure structural integrity and aesthetic appeal.

The installation process typically involves anchoring the spider fittings to the building structure using steel brackets or anchors.

Glass panels are then positioned and attached to the spider fittings using specialized hardware, such as bolts, clamps, or adhesive bonding.

Proper alignment, leveling, and sealing of the glass panels are critical to achieving a seamless and weatherproof facade.

Advantages

Transparency Point-fixed glass facade systems offer maximum transparency, allowing unobstructed views both into and out of the building.

Aesthetics The minimalist design of point-fixed systems lends a modern and sophisticated look to building exteriors, enhancing architectural appeal.

Natural Light The use of glass panels in facade construction maximizes natural light penetration into interior spaces, reducing the need for artificial lighting and improving energy efficiency.

Customization Point-fixed systems can be customized to accommodate various architectural styles, building shapes, and facade configurations, offering flexibility in design.

Considerations

Structural Design Point-fixed glass facade systems must be designed to withstand wind loads, seismic forces, and other environmental factors. Proper structural analysis and engineering are essential to ensure safety and stability.

Maintenance Regular inspection and maintenance are necessary to ensure the long-term performance and durability of point-fixed facade systems. This includes cleaning, checking for glass breakage or defects, and tightening fittings as needed.

Point-fixed glass facade systems offer a contemporary and elegant solution for architects seeking to create striking and functional building exteriors. However, their successful implementation requires careful planning, engineering expertise, and attention to detail throughout the design and construction process.