The Vertical Fire Sealing Design Is the Following Situations on the Curtain Wall Fire Prevention Design

The glass curtain wall is the maintenance structure of the exterior wall of the object. It consists of metal components and glass plates. The framework is clear, and the half -frame and hidden glass curtain wall. The doors and windows and curtain walls have a panel and a support structure system (supporting device and support system). It can have a certain displacement ability or a certain deformation capability compared to the main structure of the main structure. The data for the formation of glass curtain walls are important: steel, aluminum alloy, glass, stainless steel and sticky sealing. In the actual curtain wall design, the design of fire -resistant partition should be focused. The fire protection part refers to the plan and space of the buildings in the design, firewalls, fire doors and windows, and some fireproof limits of fire curtains and flooring into multiple areas. Fireproof partitions include two departments: horizontal partitions and vertical partitions. The division of the construction of the property fire zone may effectively control the fire in a certain area when the fire occurs, avoid the spread of fire, reduce the loss of fire, and provide a favorable prerequisite for insurance evacuation and fire extinguishing. Countless fire courses prove the importance of the fire zone.

First, the concept and classification of the fire zone

According to the function of the fire prevention area outside the fire prevention area, the fire prevention area can be divided into two categories:

One is the vertical fire prevention area to avoid the spread of the vertical direction between the multi -layer or high -rise building layers. The building curtain wall is composed of a supporting structure system and panel. It can have a certain displacement capacity compared to the main structure, regardless of the main structure of the main structure or decorative structure. The vertical fire zone refers to the fireproof isolation of each floor in the vertical direction of the building.

The second is the horizontal fire prevention partition to avoid the spread of the fire horizontal direction. The horizontal fire prevention part refers to the firewall or fire door, fire curtains and other fire -fire partitions in the horizontal direction to separate the fire prevention area of each floor. It may avoid the spread of fires on the floor horizontally. The fire zone is separated from the firewall. If there are difficulties in existence, it may be used to use a cooling water curtain or a closed water spray system, or the water curtains are used to use the fire prevention.

From the perspective of fire prevention, the smaller the fire prevention master, the more conducive to ensuring the construction of fire prevention insurance. The judgment of the fire zone should consider the nature, importance, fire hazard, construction height, and fire of fires to spread with the fire.

2. Break -fire sealing design

Breaking fire sealing design is the most important part of the curtain wall fire prevention design. According to different construction structures, there are how many of the following situations:

1. There is a strong window sill on the inside of the curtain wall (the specification request structure beam board and the overflow height of the upper part are greater than 800mm, and the bouncing radius height should be 1200mm fire). The curtain wall is composed of a structure frame and inlaid plate, and the building enclosure structure that does not bear the main structure load and function. The design of the node should be paid to the following points:

1.1 Correct division plate

The curtain wall designer shall correctly consciously consciously the concept of fireproof partition. The floor beam and the solid window sill are partitions for high and low fireproof partitions. Therefore, it is unfair to separate the fire partition from the floor level as the window sill. It advocates division and judging the outer wall floor floor, floor beam and solid window sill. The glass board does not pass the two fire prevention areas, and it is inconsistent with related requests in the standard. Even if the glass plate on the floor is damaged in the fire, because the fire sealing of the upper channel is not damaged, the fire prevention sealing may still perform effective blocking effects. Do not advocate a plate division model. If the cause of construction must be adopted, the glass on the floor should be used to promote the fire -resistant glass, and the telescopic joints of the column should be set slightly down to make the corner code position of the beam. Or add a fire block above the first beam on the floor to ensure that the floor is not damaged even if the floor is damaged. However, this structure is because the height of the window sill is too high and it will not significantly affect the visual consequences.

1.2 The firefighting layer should be set as possible at the bottom of the bottom of the beam at the bottom of the beam and the lower side of the curtain wall beam.

The goal is to maintain the embedded machine. For example, the steel corner code is not affected by the fire as much as possible. When the steel will land from 300 C to 400 C, it will lose the carrying talent at 600 C, and the refractory data of the aluminum will land the temperature). If the capacity of the embedded machine and the steel codes is greatly affected in the fire, its carrying talent