Building a staircase in AutoCAD - the main stages of design. Construction description Metal staircase drawing dwg

In order to carry out a competent, correct calculation of the stairs, it is possible to use the special AutoCad program, which will greatly help and save time.

Design of a metal staircase with a platform - dwg drawing

The use of specialized design programs significantly saves time on the process of preparing drawing documentation, as well as in calculations. In addition, using programs, you can be sure that the design is made in accordance with existing building codes and GOST standards.

Thanks to AutoCad, the design of a metal staircase for any purpose can be performed even by a beginner, without special knowledge of the program. AutoCad systems and equipment includes ready-made units for the design of metal staircases, industrial and household purpose, fire escapes, as well as information on installation and installation.

Based on the given parameters of the building, using AutoCad, you can draw a metal structure of any configuration, and, importantly, in accordance with the standards fire safety.

Components of the staircase

The staircase structure will be “built” from ready-made blocks offered by the program, which can be edited by setting the necessary parameters.

metal staircase consists of several main elements:

• Type-setting steps;
• Area;
• railing;
• Fencing.

Elements, nodes

In the program, the drawing will be created by compiling and selecting the parameters of each specific element. Due to the versatility of such computer software, it is possible to perform and pre-calculate absolutely any metal staircase with or without a platform.

The entire drawing will be presented in section so that you can view the selected element more closely. Each selected and approved element in the drawing is presented not only structurally, but also all the main dimensions, flights of stairs or flights are taken out.

The set of finished documentation made in the AutoCad system will include not only a longitudinal section of the constructed objects, but also a transverse one, as well as a specification with the necessary fasteners, and the corresponding GOSTs.

Stacked steps, flights of stairs

Flights of stairs in the program are performed in accordance with GOST 9818-85 and can be of the following types:

Flat and ribbed types have one significant difference, some are installed on a slab, while others are on a stringer. LMP flights of stairs are larger structures that are joined together by a slab.

For each type of staircase, according to the articles laid down in the program, a landing is selected, for example, marching or ribbed.

It is necessary to pay special attention to the rotation of the ladder structure - it can be made in two versions: right and left.

Series

AutoCad has its own data library, which includes regulations and building rules. Such documentation, on the basis of which the construction of drawings is carried out, is called a series. The series of regulations includes not only the basics of building a specific metal structure, but also GOST for the material used, fire safety and the rules of elementary urban planning.

For example, for the construction of metal stairs with a platform, it is worth taking Series 1.450.3-7.94 Metal stairs, platforms, fences as a basis. Release 2.

There are releases 0-2, which characterize the material used, so issue No. 2 - implies the design of structures from hot-rolled profiles.

Documentation - series, regulate the basics of construction and installation of steel stairs, railings for them, and necessary knowledge for their competent installation and operation, as well as a set of additional elements.

Railings, fences

Railings and railings are used in the construction of stairs, which are installed with floor heights from 3 to 4.5 meters, erected under the condition of standard construction.

Also, stair railings are applicable for the reconstruction of residential buildings with a floor height of 2.8 meters.

Specialized fencing marches are designed taking into account standard sizes buildings of series 1.251.1-4, issue 1 and series 1.252.1-4, issue 1 and stairs from individual steps according to GOST 8717.0-84 and GOST 8717.1-84.

Also, the products of this issue provide for the fencing of stair structures of the entrance areas to the basement.

Fire ladder device

The fire escape, unlike standard metal structures, is carried out in accordance with certain norms and standards, based on where it will be located:

Outdoor stairs are often lightweight, small-sized structures, the steps and railings of which are made of special reinforcing steel. This is done in order to eliminate possible troubles with accumulated snow in winter time, as well as to facilitate the design. AT without fail fire escapes installed on the streets must be treated with a special anti-corrosion compound. This is due to the need to extend the service life of the metal structure.

Metal fire escapes installed inside the house are mainly designed to evacuate the population, so the handrails and steps must be as safe and fireproof as possible. For this purpose, a special refractory coating, paint, is used.

Drawing Requirements

A drawing made in AutoCad must meet certain standards:

The beginning of the construction must begin with the axial and bearing lines that run in the middle of the stairs.

The section of the stair structure must be made in such a way that all bevels and bends are visible.

The ladder structure must be tied to the walls.

It is necessary to mark (with dimensions) the level line of the floor, ceiling, second floor, attic floor.

Outside the contour of the main drawing, a dotted marking of window and door openings is taken out.

If the drawing is done "for yourself", for self-manufacturing stairs, in the future, such simple basics enough to run the program.

To start building a ladder structure, you need to set the initial parameters:

To the benefits modern technologies can be attributed to significant time savings on the implementation of drawings, diagrams, plans, as well as on the necessary calculations. In addition, the program allows you to see 3D projections, consider all the corners of the staircase, its location relative to the space of the room.

This program can be used not only by professionals, but also by beginners. Having started, the implementation of the stairs on your own is worth resorting to the help of computer technology.

Message
sent.

When not one floor is planned in a residential building, but two or three, it is imperative to think over the design that will lead to the upper tiers. A drawing of a metal staircase, created on the basis of measurements, will help facilitate the work and make the arrangement process accessible.

Schemes and drawings of metal stairs

The design of the metal staircase has all the necessary safety and durability parameters. That is why they often rely on this type of product. The metal is practically not subject to corrosion, advantageously emphasizes the style of the room and brings rigor and elegance to the design. Looking at the wide variety of metal stairs offered, one can understand that even a person who does not have experience in such incarnations can make them with his own hands.

The most important thing is to choose a design that will be feasible to draw, prepare and install in the space of the room or outside it.

Advantages

Flaws

1. One of the disadvantages can be called the bulkiness of gangways and railings. But thanks to the skills of modern developers, you can easily choose a scheme that will best match the load for a particular room.
2. Some curves and decorative elements difficult to implement without special skills.

Based on the priorities and disadvantages of the material and design in general, one can bet in favor or against such a decision.

Metal staircase on stringers

It is much easier to make a drawing of a metal staircase if the structure is equipped with stringers. This is due to the fact that you need to calculate the distance for each step and prepare the material, which will subsequently be fixed to the base. Stringers are the base (base) in the form of a future staircase.

It can be made from different materials and be fixed as required by the premises. Of course, measurements are still required to purchase suitable stringers.

After all, the design must fit the parameters of the space allocated for the stairs. A ladder on metal stringers will help even inexperienced craftsmen to complete the installation task.

The main thing - correctly with a mark of the place where the gangway will be located. And also have at hand the tools and materials necessary to implement this idea in your own home.

Advantages

Due to the fact that gangways equipped with stringers have earned a calling, positive sides such solutions are obvious:

• This makes the work process easier;
• Allows you to easily organize the order of actions;
• Such designs are strong and durable;
• Thanks to the stringers, even an inexperienced specialist or just the owner of the house will be able to realize his plans and make it a reality;
• This element allows you to devote more time to details and design experiments that will decorate.

These are far from all the positive aspects of the stairs on the stringers; each owner of a private house finds his own independent advantages.

Flaws

It is necessary to correctly determine the size of the base for the steps so that the design fits clearly into the interior. It is easy to make such calculations. Simply measure the height, angle and width of the desired installation.

How to draw a metal staircase drawing

Make your own drawing of a metal staircase with my own hands simple enough. To do this, you need to measure the space in which the steps leading to the second floor will be located.

Required materials for measurement

In order to carry out the measurement of space, the following accessories should be at hand:

• Roulette with maximum length;
• Surface level gauge;
• Chalk or a special felt-tip pen with which you can make the necessary marks on the wall, floor and ceiling.

it minimum set accessories that will help you quickly and efficiently carry out the measurement process.

Required materials for the drawing

To make the scheme as accurate and correct as possible, you should also prepare a number of stationery items. Namely:

• Sharpened pencil or black marker with a thin rod;
• A sheet of paper or whatman paper;
• Ruler;
• Compass.

The diagram should be drawn carefully and accurately so that during the direct installation process, errors that are difficult to correct are not made.

What parameters need to be measured

In order not to miscalculate and correctly make a drawing with your own hands, you will need to make the following measurements:

After taking measurements, you can transfer the recorded parameters to a sheet of paper, forming a diagram of future gangways.

What nuances must be taken into account in the process

When carrying out measurements, be sure to pay special attention to the following factors:

What are metal stairs

It happens differently, but each of them is worthy and we often choose. The designs of metal stairs are:

Specialized design programs significantly save time when developing drawings, calculating the main dimensions of structures, and compiling accompanying documentation for products. In addition, using the programs, there is no doubt that all design stages will be carried out in compliance with the existing SNiP and GOSTs. The article will help you understand how to build a staircase in AutoCAD.

Modeling

The program allows you to design structures for any purpose, even for a beginner who does not have special experience in owning a system that includes:

• Metal buildings for industrial and domestic purposes;
• Firefighters;
• Instructions for assembly and installation of any other design options.

The program has its own data library, which includes regulatory documents for choosing a design, its parameters or SNiPs, and rules for building a model. A series of regulations includes the basics of building steel structures, GOSTs for the materials used, fire safety requirements and elementary urban planning rules.

The documentation or series regulates the basics of building a structure, fencing for them, provides rules for the competent installation of products and operation, there is a list of additional elements.

Structure design procedure

Drawings executed in the AutoCad program must comply with certain rules:

• First of all, center lines are drawn, passing through the center;
• The location of the march is tied to the walls of the building;
• On the main view, the floor levels of the first and second floors are marked;
• On the cuts, all bends and bevels should be visible;
• On the wiring diagram, behind the contour of the main projection of the product, the dimensions of the room are applied in thin lines, the placement of openings for windows and doors in it.

To develop a drawing "for yourself" - these are the basic provisions for working with the program.

Type selection

Initially, you should choose the type of its design and material of manufacture.

Types in AutoCad

Types shown in the photo:

• a - straight single-march;
• b - straight two-march with an intermediate platform between marches;
• c - L-shaped two-march with a corner platform between the marches;
• g - U-shaped two-march with an intermediate platform in the corner of the room;
• e - three-march with platforms in between marches;
• e - single-march curvilinear, located near the wall;
• g - single-march curvilinear, placed in a rectangular volume;
• h - screw;
• and - single-march with a turn of 90 ° and winder steps;
• k - single-march with a turn of 90 °, with lower and upper winder steps;
• l - single-march with a turn of 180 °, with winder steps in the middle of the structure.

The choice of type is influenced by:

• The area allocated for its installation;
• Ceiling height;
• Architectural style.

The choice of material depends on the solidity of the house and the degree of its fire resistance. The most convenient design, which provides the safest ascent, is a flat with one march, with 15 steps.

Composition of a march in AutoCad

How to draw in autocad

When creating a virtual structure, ready-made blocks are used, which are offered by the program - they can be edited by setting the required parameters. The composition includes several basic elements.

These include:

• Prefabricated steps;
• Area;
• Fencing;
• Railing.

Blocks for autocad

In the AutoCad program, drawings are created by compiling and selecting parameters for each specific element. The versatility of such computer software allows you to perform and calculate in advance absolutely any design with or without a platform.

Elements of marches with platforms

The entire drawing is developed in section, which allows you to carefully view all the selected elements. Each of them in the drawing has the appearance of not only the structure itself, but also all the main dimensions.

A set of ready-made documentation, which was developed in the AutoCad program, includes a longitudinal and cross section objects, specification with the necessary fasteners. Everything is done in compliance with the relevant GOSTs.

Steps and marches

Marches and nodes in AutoCad are performed in accordance with GOST 9818-85.

Steps for them can be:

• Flat without friezes - LM;
• Ribbed with friezes - LMF;
• Ribbed, which include two half-platforms - LMP.

At the same time, flat ones are installed on a slab, and ribbed types - on a stringer. At the same time, LMP marches have a large-sized structure, united together by a slab.

For each type of structures, a site is selected, which is laid down in the program.

Tip: You should pay attention to the turn - it can be right and left.

Wiring diagram

Design with given parameters

For example, the most complex option is considered - the creation of a structure in the AutoCad program. In this case, the steps from bottom to top are placed around a common rack.

The user sets the radius on the screen, in the absence of restrictions on the trajectory of the model. Otherwise, the radius must be determined taking into account the given tread length and its shape parameters. To get the desired radius, you should adjust the length of the tread.

Initial design stage

To create a model of a given tread width along the midline (T), you must:

• Form a structure twice the width of the given distance (A);
• Using the "Edge adaptation" function, the outer edge is moved to a position that corresponds to the overall width B;
• The offset value is B - 2A.

Design

Tip: Before selecting tools, to display the properties palette, you need to click in sequence: the Home tab, then the Create panel, then the Tools drop-down list and Properties.

Thereafter:

• Open the palette of tools required for work, and select the desired tool;
• On the properties palette, go to the "Design" tab and expand the "General" and "Basic" nodes;
• The design style is selected;
• For the "Shape" parameter, the value "Screw" is selected;
• Sets the horizontal orientation;
• Sets the vertical orientation type for the model;
• Expands the Dimensions node.
• Specifies the width, height, and anchor;
• The method of completing the structure is determined;
• The radius is set;
• Selects the type of dependency used to create;
• Click the icon next to "Calculation rules" and, if necessary, set:

1. The total length of the structure.
2. The total number of risers.
3. The height of all risers.
4. The width of each tread of the march.

• Expands the Advanced Options palette;
• “Parameters for floors” are set;
• The minimum height or the number of steps in the march is set or “*NO*” is set;
• The maximum height or the number of steps in the march is set, or the value "*NO*" is selected;
• Specifies the center point;
• The location is set;
• Development continues;
• Enter is pressed.

The video shows the construction of any design in more detail.

Modern technologies can significantly save time on the development of drawings, wiring diagrams for metal structures, on the necessary calculations. The program allows you to get acquainted in 3D projection with all the corners of the staircase structure, to see its location in the space of the room. By designing a section according to the model, one can get an idea about its design, about internal arrangement the entire building.

The use of a specialized computer program can significantly simplify and speed up the construction in AutoCAD. However, if possible, it is better to entrust the process of developing drawings to a professional. The price of even a small mistake is too high, because the staircase is one of the most important components of the building.

SERIES 1.450.3-7.94 Issues 0, 1, 2 in .dwg format

STEEL STAIRS, LANDINGS, Ladders AND FENCES FOR INDUSTRIAL BUILDINGS OF INDUSTRIAL ENTERPRISES

Release 0.

MATERIALS FOR DESIGN

Issue 1.

STRUCTURES FROM COLD-FORMED PROFILES. DRAWINGS KM

Release 2.

STRUCTURES FROM HOT ROLLED PROFILES. DRAWINGS KM

This digitized series perfectly matches the original

AutoCad Opener

Developed series 1.450.3-7.94 "Stairs, platforms, ladders and steel railings for industrial buildings industrial enterprises consists of the following releases:
issue 0. Materials for design
issue 1. Structures from cold-formed profiles. KM drawings
issue 2. Structures from hot-rolled profiles. KM drawings
This issue 0 contains a description of the installation of steel stairs, platforms, ladders and railings for them, the necessary information for their correct installation and operation, as well as layout diagrams and the range of stairs, platforms, ladders, fences and additional elements.
1. PURPOSE AND SCOPE
1.1. steel stairs, platforms, ladders and fences are designed for operation inside and outside heated and unheated buildings of industrial enterprises and engineering structures erected and operated in areas with snow and wind load
I... according to SNiP 2.01.07-85, non-seismic and with design seismicity up to 9 points; with an estimated outdoor air temperature of minus 65°C and above; with explosion-proof categories of production; with non-aggressive and weak degree of aggressive environmental impact under normal temperature and humidity conditions according to SNiP II-3-79.
1.2. Ladders, platforms, step-ladders and fences can be used as in-shop, incl. for service technological equipment, for arranging landing sites for overhead electric cranes, as outdoor evacuation and fire-fighting cranes, with minor modifications for servicing steel tanks up to 18 m high, for servicing vertical and horizontal heated and unheated apparatuses and vessels with a diameter of up to 20 m and as bridges for servicing electric lamps .
2. TECHNICAL DATA
2.1. The main parameters of flights of stairs and landings, as well as the maximum allowable loads on them, are taken into account with an overload factor of 1.2 in accordance with the requirements
SNiP II-23-81 and SNiP 2.01.07-85 and are given in Table. 1.2 of this explanatory note.
2.2. Layout diagrams of structures and docking units are shown on sheets 1-13 of this document - KS.
2.3. The width of flights of stairs and platforms in accordance with the requirements of SNiP 2.01.02-85 and SNiP 2.09.02-85 are two sizes 700 mm and 900 mm. The angle of inclination of flights of stairs is 45° and 60°.
2.4. It is possible to lift flights of stairs both on metal and reinforced concrete platforms and ceilings.
There are three options for fastening structures by tiers:
I - support of flights of stairs and landings on bearing structures building;
II - a flat vertical truss created by flights of stairs and landings, pinched at the base and free at the top, is connected by column belts and additionally unfastened by ties with a step of no more than 9 m with the walls of the building. The option can be used to equip firefighters and evacuation stairs.
III - a flat vertical truss created by flights of stairs and landings, pinched at the base and along the upper tier, connected by a belt-column. The option is recommended for arranging landing sites for overhead electric cranes.
For options II and III, the height of the flights of stairs is taken to be 3.6 m. The height of the platform marks can be adjusted by changing
the height of the first march (modulus of increase 0.6 m) and due to the change in height relative to the zero mark ± 0.3 m.
2.5. When operating stairs, platforms, ladders and fences in areas with a seismic activity of 7 ... 9 points, it is necessary to provide for: floor cutting that does not affect the rigidity of the building frame, the use of anti-seismic joints, the gap between the structures and walls and the building frame is at least 20 mm.
2.6. The parameters of vertical fire escapes and ladders comply with the requirements of SNiP 2.01.02-85 and are accepted with a width of 700 mm. In the lower tier, the structures rest on the foundation and are connected in height at a distance of no more than 9 m additional elements with the walls of the building.
2.7. The option of installation and selection of a set of structures is determined by the designer, taking into account the following - ceteris paribus:
for buildings made of light metal structures, it is recommended to use stairs, platforms, ladders and railings made of cold-formed profiles as they are lighter and create less load on the building frame and foundation;
structures from hot-rolled profiles can be manufactured in construction conditions, structures from cold-formed profiles are usually manufactured at specialized enterprises.
3. TECHNICAL REQUIREMENTS
3.1. The material of structures operated in areas with an estimated outdoor air temperature: up to minus 40 ° C should be of group C235 according to GOST 27771-88, up to minus 65 ° C of group C255 according to GOST 27771-88.
Z.2. Structures must have an anti-corrosion coating in accordance with the requirements of GOST 9.402-80, GOST 9.401-91 and SNiP 2.03.11-85.
3.3. Substitutions of materials are allowed in the structures:
to cover the steps of stairs and platforms, it is possible to use hot-rolled corrugated steel in accordance with GOST 8568-77 and grating type "Bataysk" in accordance with TU 36-2044-77.
for load-bearing elements of structures, it is possible to replace them with rolled products or profiles with similar or higher strength indicators.
The layout of structures from cold-formed and hot-rolled profiles is possible.
3.4. Packaging of structures should ensure the safety of the protective and decorative coating. Transport packages should weigh no more than 3.5 tons. Structures should be stored on linings in stacks no more than 2 m high. Additional elements are stored in boxes. Storage conditions 7 according to GOST 15150-69.
3.5. During installation and loading and unloading, the structures are slinged "in the girth" using protective pads to preserve the decorative coating.
4. INSTALLATION
4.1. When developing installation drawings for a design organization, it is necessary to be guided by exemplary wiring diagrams, assemblies and the nomenclature of this issue.
4.2. The calculation of foundations for a selected set of structures according to the options for fastening is carried out by a design organization that applies structures at a specific construction site.
Structures fastened according to option II (external mid-flight evacuation and fire stairs) are designed for maximum loads on stairs with a height of 22.2 m, while taking into account that:
wind load is transferred to the foundation through flights of stairs;
vertical constant payload and snow load is transmitted through support links.
Structures fastened according to option III (ladders for landing sites of overhead electric cranes) are designed for live loads
3.0 kN/m² (300 kgf/m²) with a ladder height of 15 m.
The fencing of stairs and platforms is designed for short-term loads provided for by SNiP 2.01.07-85 and GOST 12.4.059-89.
Vertical fire escapes are designed according to the maximum loads on ladders with a height of 20.1 m (wind load and own weight).
4.3. The connection of the elements of stairs, platforms, step-ladders and fences is made on bolted connections and obligatory welding of articulated links.
It is not allowed to form a reverse slope of steps more than 1 °
when installing stairs.
The railings are assembled on site (including left and right versions). Docking of handrails, strings and borders with each other is carried out by welding with fitting the joint in place.
Fastening of ladder railings to the frame of ladders and docking of racks is carried out on bolts.
4.4. Mounting features are indicated in the nodes.
4.5. Installation of a set of structures must be carried out in accordance with the requirements of SNiP III-18-75 and taking into account the safety requirements of SNiP III-4-80
5. SYMBOLS OF PRODUCTS
5.1. A set of structures, depending on the rolled metal profiles from which it is made, has the following indices in its marking:
X - cold-formed profile;
G - hot-rolled profile.
5.2. Depending on the operating conditions, the steps of the stairs and the flooring of the platforms are made of:
Ф - steel sheet with rhombic corrugation;
B - steel sheet expanded metal;
R - bands on the edge and round steel (VISP type).
Examples of brand decoding are given in the corresponding nomenclature for stairs, platforms, ladders, fences, additional elements.

The most important. Kosoury from what profile? Through the size and weight of something to calculate? Be prepared that with such drawings at the construction site they will supply what is at hand.

Further. If the steps are according to GOST, why draw them? I don’t remember if there are mortgages in them from below or not, but if not, no one will most likely put them there for you, especially since in some cases there are loops for slinging. And the absence of loops must again be specified in the drawings and agreed with the installation organization. And why these mortgages? Weld a step? I have never seen them welded, they just put one on top of the other and that's it. And again, you don’t have this node and it’s not written anywhere, so they won’t even think about cooking at the construction site.

On the reinforcement of the sites for positions 1 and 2, show the distribution of reinforcement with arrows, although if the number and pitch are calculated normally, then you can do it, but for clarity I would put it from the “fool”, and they are in SPDS.

On the reinforcement near the beam there is some kind of tricky brand (brackets like this, brackets like that). If you want this - explain in the OD. If they differ only in mortgages, they would make 1 drawing with all mortgages and a positional callout, for example, “Zd-1 only for Bm-1”. What does “l” (staircase?) mean in the brand in brackets is not clear and why in brackets and why at all.

In general, forget about the mortgages in the steps, indicate which channel for the stringers and everything will be ok. The main thing is that the stringers are properly selected, and the foreman himself will deal with the rest at the construction site. =)

Yes, now such foremen come across (not very smart). you give them detailed drawings, they will still "terarize" with their calls for half a year anyway. And thanks for the comments.

And as for the steps to put one on top of the other, not a single examination in the seismic region is allowed. (Especially in this case 9 points)

From which profile of the kosour is indicated in the specification on sheet KZh-61, drawings are also given there.

Thanks for the comments.

A couple more notes:
1. When reinforcing landing if 20 mm to the reinforcing bar is indicated and it is drawn in one line, then it must be indicated that this is protective layer reinforcement, not the distance to the center.
2. If fences are indicated, then there are no attachment points.
3. In such a situation, as you have, this is not QOL, but KR for both metal and concrete.
4. There is no need to indicate the size and composition of floors that are not related to the stairs.
5. If there are holes in the embedded parts, you must also indicate the diameter of the holes, otherwise, judging by the drawing, two holes D18 and 22 mm between them in the light - it’s somehow strange :) according to the calculation, did you look at the arrangement of the bolts? The metal in the section is shaded (well, maybe I don’t show hatching without SPDS? :)).
6. What is the point of drawing a serial step if this is not a separate task for a precast concrete plant with its own parameters that are not in the series? Moreover, the method of installing embedded parts in a step excludes the execution of this operation on finished steps (so to speak, "in place"). And there is no step reinforcement in this case.
7. Sheets are not numbered like this - there is a separate column in the "SHEET" stamp. Stages of R.P. no longer, and it is written RP, and for this stage, by the way, everyone constructive solutions brand KR (again).
8. Notes from sheet 62 must be transferred to the first sheet - where general data and general instructions for erecting / manufacturing / installing a structure, etc.
PS. The foreman at the construction site does not know which one will fall, so rely only on yourself.

I looked at the I-beams on the stringers. It's true. But why the hell did they settle in the "Step Specification"? What position, what designation?
What is "14-B"? If it is a beam, then B1, for example. Better indicate according to STO ASChM 20-93. Although not the point.

About seismic perhaps - did not meet. =) Then give a node where the top steps are welded to the stringer, for a good sleep, otherwise the answer in the explanation is that they say to cook everything and everything is so ...

On sheet 58 at the west. positions were not taken out in special as at 60.
There are 61 sheets on the sheet in the rear. from steel C345. What for? But on the 58th corner is not indicated at all - you will get C235.

Umka, steps, by the way, in GOST there are both “concrete” and “reinforced concrete” so to reinforce them or not is a master's business. But I prefer to give w.b.

I'm not nitpicking, they just asked the races, then my thoughts. Good luck.

Thanks for the comments. I will answer the following comments:

1, I agree with you. You could have added some notes.
2, also agree. but I considered it a trifle and did not show (the builders themselves will figure it out without a drawing)
3, I agree, you yourself probably know what kind of lazy architects we have, designers have to do 50% of the work for them. but the fact that in the QOL section I showed metal structures, according to GOST 21.501-93 in the QOL section it is allowed to show metal structures subject to the conditions of Appendix 14 (see at the end of GOST)
4, also agree. This is information for the foremen, so as not to ask again.
5, Everything is shown on the embedded parts as expected (apparently you do not have SPDS)
6, According to GOST 21.501-93 Appendix 16, if you put additional embedded products in prefabricated reinforced concrete products, then the designer is obliged to draw a formwork drawing of the product, plus show the embedded parts.
7, I agree with the remark. (The architect numbered the AP, and so did I.)
8, Notes can be transferred, but as you can see, I don’t have a place there.

Thanks again for the comments.