Stairs In Your House: What You Should Know

In residential buildings, which are constantly being exploited, with height of more than two floors, use, as a rule, precast concrete stairs. These ladders must comply with fire safety. They are developed in the form of marches, which are stacked on the landings, are made of reinforced concrete or in the form of marches, combined with landing.

In the second case, the design creates a solid mounting element. The support pattern is carried out on the beam landings, which are collected and sealed in the walls of the stairwells. Let’s examine the types and forms of stairs.

For country cottages, wooden stairs are typical to use. This stairs are with a bowstring (carriage). There are the following kinds of wooden stairs:

• Stairs with sliding treads (treads move into both sides of the grooves, which are selected with bridgeboard). The support pattern of the bridgeboard on a platform is made by “hanging corner. This connection is called “swallow tail”.

• Stairs with embedded in the treads and risers bow (in the grooves cut in the stringer inserts of the tread and risers. The depth of grooves is 25-30 mm). The lower fascia step appears solid element of the boards and anchors to concrete floor slabs.

• Stairs with a bowstring having cutouts of carriage (tread attach pins or screwed on).

Steps are made of solid wood or boards, recruited on the fugue. Risers are cut into the quarter, or are in the groove step. In stairways with embedded stages of the first, middle and last stages of tightening the anchors embedded in the spine and pull together for safety. Additional strength is provided by risers. If there is no riser, in case of necessity, the isolated the bottom part of the staircase of the area is being done from the bottom of a flight of stairs.

Metal ladders are used more often in industrial buildings. According to its intended purpose they are divided into:

• the principal or main (made of reinforced concrete or stone and placed in stairwells).

• Spare (for fire evacuation); service (for passage to the attic or basement), inside a flat (for a bunch of one-floor apartments). They are divided into direct and straight from the intermediate landing.

As the number of flights separated by landings, are distinguished among one flight of stairs, two half-pace, or numerous flights of stairs.