Construction method of basement stair firewall

Abstract

The invention discloses a construction method of a basement stair firewall. The construction method comprises the following steps that 1, field measurement is conducted; 2, construction preparation isconducted; 3, a firewall is built, specifically, a, a steel structure formwork is erected; b, a firewall foundation is poured; c, a firewall is built; d, quality inspection of the firewall is conducted; e, a firewall surface is constructed; f, wall painting is conducted; and g, firewall acceptance is conducted; 4, firewall maintenance is conducted, specifically, professionals are selected to conduct daily protection on the firewall and a firewall constructional column; and 5, construction is finished. The construction method is reasonable in structure, when the basement stair firewall is constructed, the perpendicularity and flatness of the firewall surface are controlled, the thicknesses of plaster layers on the two sides are controlled to be 25 mm, plaster on each side is controlled tobe 12.5 mm, the problem that the plaster layers occupy the clearance of a stair flight is effectively solved, meanwhile, the center line of a handrail is flush with the outer edge of the firewall, andthe net width of a stair is prevented from being occupied.

Description

technical field [0001] The invention relates to a fire wall construction technology, in particular to a construction method of a basement staircase fire wall, and belongs to the technical field of building construction. Background technique [0002] A professional term for architectural design, which refers to a non-combustible wall that prevents fire from spreading to adjacent areas and has a fire resistance rating of not less than 3 hours. It is an important partition member used to divide fire compartments or prevent the spread of fire between buildings. It can effectively limit the fire to a certain space during the initial fire and fire extinguishing process, and prevent the fire from spreading from one side of the firewall to the other. For It plays an important role in reducing fire damage. Firewall, ordinary brick walls and floors are all fixed fire separation components; openable and closed types include fire doors, fire windows, fire shutters, fire water curtains,...

AI Technical Summary

Problems solved by technology

[0008] (2) How to meet the net width requirement of 1100mm after applying gray veneer and installing railings on the basement stairs, so as to effectively prevent the basement stairs from not meeting the net width of 1100mm after plastering the veneer and installing handrails, and then Problems that lead to the failure of acceptance and affect the progress of the project; how to solve the problem of fire safety hazards caused by insufficient net width of stairs;

Images