Four key issues that cannot be ignored in practical application of fireproof glass

Published:

Mar 17,2023

All of this ignores the fact that fireproof glass partitions are composed of fireproof components such as fireproof glass, frames, sealing materials, and cushion blocks, and are a complete system.

Fireproof glass is very common in daily buildings and has a wide range of applications, but there are still some problems that cannot be ignored in the actual application and supervision process. For example, how to use fireproof glass correctly? What type of fireproof glass is used? Where can fireproof glass be used? There are still many blind spots in the practical application of these issues, and many construction units, design units, and construction units have misconceptions and use errors, and do not know how to grasp them. Today, let's take a look at the four key issues that cannot be ignored in the practical application of fireproof glass.

1. Fire resistant glass and fire resistant glass partitions are not separated

In the design of some buildings, which require both fire separation and aesthetic transparency, fireproof glass partitions will be used as fire separation measures, such as boutique partitions in performance-based commercial pedestrian streets, glass firewalls in large commercial spaces, and observation windows in observation shafts. However, designers often label fireproof glass partitions instead of fireproof glass partitions on the drawings, while fire reviewers typically only propose to label fireproof glass partitions for a few hours, without requiring designers to clarify the detailed node construction practices of fireproof glass partitions on the drawings. In actual construction, it is common practice for the construction party to purchase fireproof glass according to the design requirements. The fireproof glass is fixed in the frame according to the common glass partition method, and the glass joints are injected with glass glue. Simply speaking, it is considered that the splicing of fireproof glass together is a fireproof glass partition wall, which meets the fire protection requirements. Upon acceptance, it is sufficient to submit a test report of the fireproof glass.

All of this ignores the fact that fireproof glass partitions are composed of fireproof components such as fireproof glass, frames, sealing materials, and cushion blocks, and are a complete system. Fireproof glass is only a component of a fireproof glass partition wall, which must be installed in combination with inlaid frames and fireproof sealing materials to form a fireproof glass partition wall and meet the corresponding fire resistance limit standards of the specification.

2. Problems needing attention when adding spray protection to fireproof glass

Relevant experiments at home and abroad have shown that selecting appropriate water spray system protection can effectively extend the time when a single piece of fireproof glass reaches the point of loss of thermal insulation and street facing radiation, effectively extend the fire insulation time, and ensure personnel evacuation. Currently, this type of design is widely used in performance-based design such as large-scale commercial pedestrian streets, and is protected by a single piece of non insulating fireproof glass plus water spray system to provide thermal insulation. The key to such engineering practices is the water distribution effect of spray protection, as experiments have shown that once the spray protection is lost, the single piece of fireproof glass will quickly lose its role in smoke and fire prevention.