U-shaped staircase: with a platform on the second floor, video and production, 180 degrees, design calculation and drawings

The U-shaped ladder is perfect for both the apartment and the country house Thanks to its robust construction, capable of withstanding heavy loads, elegant appearance and ergonomics, the rotatable "P" staircases have become a global application in areas with increased terrain:Commercial premises, public organizations and public institutions. Today, such designs can equally be used as a design for safe and convenient lifting and lowering in a private house, cottage, two-storey apartment. What are the stairs of the "P" type and how to calculate the system - read the article.

What featuresHas a design of a U-shaped ladder

A U-shaped ladder is a system consisting of three flights of staircases, one of which allows you to expand the direction of the step by 180 degrees, which allows you to maximize the reliability of the ladder and ergonomically install it between two walls, for example inA narrow corridor or a small hall.

The U-shaped ladder features a good ergonomics and attractive appearance

The scissors of such a ladder are a long monolithic beam on which steps are mounted. Thanks to this design, the ultimate strength of the system is achieved.

Often, in its construction the staircase has additional rails and fences, which makes the climbing and descent comfortable and safe even for the elderly generation and children.

U-shaped stairs to the second floor: types and differences

Basic configurations of the ladder: construction with a platform, a system with staggered steps. In addition, the U-shaped system can be left-turning( turning to the right) and right-turn( with a turn to the left), open( without risers) and closed( with risers).

Often, the ladder has an inviting stage or block stages in the structure - radial platforms, whose main task is to extend the angle of approach. This design makes the appearance of the staircase more complete and perfect. There are P-shaped designs on the second floor and the method of installation.

The U-shaped ladder can differ in height of the handrail, the width of the steps and the material from which they are made.

So, it is possible to single out:

• A monolithic construction that guarantees reliability and durability;
• The staircase on strings and strings, which has unsurpassed decorative qualities and is perfect for installation in private houses;
• Ergonomic design on the heels.

Staircases U-shaped with a platform: advantages

U-shaped systems with a platform are practical constructions that allow making comfortable and safe climbs and descents, can serve as a place for rest when carrying goods.

Calculate the ladder with the platform is easier than calculating the sizes of the rungs. But, it is important to take into account the dimensions of the site: the most convenient are sites with a length and width of at least 800 mm. In addition, it is better to give preference to single-level, direct areas. Otherwise, the design will not be able to fully realize its basic functions and will knock down a step, which can lead to a loss of balance of the going and, consequently, to injuries.

How to make a calculation of a U-shaped ladder

When designing a U-shaped system, it is necessary to take into account the average length of the step of an adult person( 600-650 mm.).The basic calculations( the angle and length of the march, the height of the riser and the length of the tread) should be built on the Blondeyl formulas, which ensure that the optimum values ​​are obtained from the point of view of comfort and safety.

Before starting the construction of the U-shaped ladder, it is worth making its drawing on paper

In order to know how many steps it will take before and after the rotary structure, the total length of the ladder( height between the floors, taking into account the ceiling and the floor finish) Divided into two. The resulting value should be divided by the height of the riser( for example, 15 cm).As an example, for one march of a ladder 3.5 meters high, we need 10, 6 steps. But, since we can not halve the elements, in one march we will use exactly 10 steps, and the remaining two can be used as invitations.

Calculation of the U-shaped system can be performed using an online calculator or construction programs that will allow you to obtain exact values ​​and create a drawing of a future ladder.

Ladder 180 degrees: calculation of swing stages

The design with swivel steps makes it possible to economize on the area. In addition, the runway steps look graceful and stylish, and for safety( if the calculations are carried out taking into account state standards, building codes and rules) are not inferior to single-level sites.

Sealing steps can be calculated with:

1. Lift method. The method is based on the use of the coordinate axis. The height of the risers is located along the x-axis, and the width of the step along y. The area of ​​the turning steps, in this case, is allocated by a circle, is evenly divided into sectors and transferred to the projection taking into account the optimal values ​​and features of the circuit. Method of Proportion.
2. .It is based on the uniform arrangement of the main stages with respect to the rotary steps. Turning steps, in this case, are built along the midline of the march( which is shifted to the center of the turn) and the middle axis of the turntable. Calculations are based on the optimal values ​​of the width of the tread in the narrowest place and in the intersection of the sides of the steps with the middle line of the march.

Special platform on the U-shaped ladder makes it more practical and functional

Both methods allow obtaining accurate calculations and drawings of the future design with swivel steps.

U-shaped stairs: self-made

If the finished staircase does not meet your wishes, room characteristics, etc., then you always have the opportunity to make a design yourself.

In order to produce a ladder, first of all, you need to decide on the choice of material. Finishing the U-shaped structure is possible with stone, tile, metal( for example, the ladder "Solo" on the metal frame), etc. But, more often, for the manufacture of stairs, choose solid wood species: beech, pine, ash. Such materials guarantee the strength and reliability of the structure, give the staircase a homely, cozy look and can effectively fit it into any interior.

Before work, the wood must necessarily be dried and treated with a means to protect the wood from moisture, fungi and mold.

Before starting the assembly of the U-shaped ladder, it is advisable to consult the experts' advice or watch the training video

For the manufacture of wood stairs you will need:

• Bearing beam for struts or beams;
• Edged boards for the production of steps, fences( many construction stores offer ready-made balusters, balustrades and handrails for stairs);
• Adhesive sealant for filling joints and cracks in the structure.

Work tools require a puncher, an electric drill, a jigsaw, a screwdriver, an ax, a hammer, mounting elements( screws, anchors, etc.), level.

All elements are cut according to the calculated template pattern. The most difficult moment is the manufacture of Kosoura. The length of the supporting beam should be equal to the length of the staircase kosoura of one march. The treads and risings of the main steps must be of the same size. The steps are mounted on self-tapping screws. Lastly, additional elements are mounted in the system: railings, balusters, etc., the construction is opened with varnish.

Detailed video-instruction on how to make and assemble a ladder yourself can be seen on video.

U-shaped stairs( video)

U-shaped construction is the most common system that allows comfortable descent and ascent. Due to its structure and fabrication materials, such a staircase - sturdy and reliable, looks impressive and can become a luxurious addition to any interior!And you can calculate and make such a ladder with your own hands!

Design U-shaped staircase( photo in the interior)