Overhaul of DK building roof

Contents

CONTENTS

1. Information on topographic, engineering-geological, hydrogeological, meteorological and climatic conditions of the land plot provided for the location of the capital construction facility

2. Structural Solutions for Existing Building Roof

3. Technical solutions ensuring the necessary strength, stability, spatial invariability of the reconstructed roof of the building

4. Space-planning solutions of the building roof

5. Justification of design solutions and measures

5.1 Observance of required heat-shielding characteristics of roof structures

5.2 Waterproofing and steam insulation of building premises

5.3 Measures to ensure fire safety of the building

6. Protection of building structures from destruction

7. List of used regulatory and reference documents and technical literature

Change Log Table

Information on topographic, engineering, hydrogeological, meteorological and climatic conditions of the land plot provided for the location of the capital construction facility

The building is located at: Yelets, st. Ordzhonikidze, d. 6a.

According to the BTI passport (2005), the building of the house of culture of variable storeys consists of three main volumes (see graphic part of sheet 22):

"Lit. A "- two-story with a basement, year of construction 1925, capital group III, physical wear and tear 4850%;

"Lit. A1 "- two-story extension, year of construction 1984, capital group II, physical wear and tear 24%;

"Lit. A2 "- one-story extension, year of construction 1984, capital group II, physical wear and tear of 27%.

The building is operated in the area with the following climatic conditions:

climatic construction area - IIB (SP131.13330.2012

"Construction climatology");

estimated winter outside air temperature: the coldest days - minus 31℃, the coldest five days - minus 27℃ with coverage of 0.92 (SP 131.13330.2012);

outside air humidity area of the construction area - 3 (dry) (SP 50.13330.2012 "Thermal protection of buildings");

estimated weight of snow cover (III area) - sg = 2.1 kPa (210 kgf/m2) (SP 20.13330.2016 "Loads and impacts");

standard wind pressure (II district, type "B") - w0 = 0.3 kPa (30 kgf/m2) (SP 20.13330.2016 "Loads and impacts");

normative depth of ground freezing - h0 = 1.4 m ("Manual for designing the bases of buildings and structures").

The level of responsibility of the building is normal (item 7... 11 Art. 4 of the Federal Law of the Russian Federation No. 384FZ "Technical Regulations on the Safety of Buildings and Structures" of 30.12.2009), the safety factor for the responsibility αn = 1.0.

The structure is heated. Lighting is natural and artificial.

Humidity mode of the facility operation - normal (Table 2.5

MDS 1320.2004 "Comprehensive procedure for inspection and energy audit of reconstructed buildings," item 2.5 of SP 28.13330.2012 "Protection of building structures against corrosion," table 1 of SP 50.13330.2012 "Thermal protection of buildings"). The degree of aggressive impact of media on reinforced concrete and steel structures, taking into account the actual conditions of their operation, is non-aggressive

The existing building is located in the IIB climatic area with an estimated winter outdoor temperature of minus 27 ° C.

The humidity zone is dry.

The estimated weight of the snow cover is 180 kg/m ² (snow area III).

The estimated wind pressure is 30 kg/m ² (wind area II).

As a relative elevation of 0.000, the level of the clean floor of the first floor of the building is taken.

The building of the house of culture of complex shape, one-story and four-story .

The sizes in axes of 38.97х54.26 m.

The height of the rooms to the bottom of the projecting structures on the 1st floor is 3.85 m, 3.7 m and 7.95 m; on the 2nd floor is 3.7 m and 3.65 m.

Normative climatic characteristics

Climatic area in accordance with SP 131.13330.2012- district II, subdistrict IIB.

Wind area - II (standard wind load - 0.23 kPa).

Snow region - III (standard snow pressure - 1.8 kPa).

Technical solutions ensuring the necessary strength, stability, spatial invariability of the reconstructed roof of the building

The existing structural structures of the reconstructed roof of the building are not affected in the current roofing reconstruction project, and the total load from the new coating does not exceed the existing one. Therefore, additional justifications for technical solutions providing the necessary strength, stability, spatial invariability of the reconstructed roof of the building are not required.

In this project, the replacement of the existing self-supporting elements of the roof coating (sheet metal) with a new one according to Shinglas technology (flexible tiles TECHNONIKOL SHINGLAS Ultra series) was developed. New design values of forces, from the designed roof covering structures, in the elements of the load-bearing building structures of the roof of the building do not exceed existing ones taking into account the safety factor for responsibility.

The strength and stability of the existing roof of the building with a load-bearing wooden frame is provided in the longitudinal direction by vertical connections (grating) and spacers between rafter legs, in the transverse direction - by rigid conjugation of rafter bearing structures with the underlying building structures of the building coating.

The configuration and construction of the roof structural elements in this project is not affected and remains unchanged. Loads from the designed roof cover do not exceed existing ones.

The design of the replacement of the self-supporting roof coating elements was made in full accordance with the chapters of SP 20.13330.2016 Loads and impacts, SP 64.13330.2017 Wooden structures, SP 17.13330.2017 Roofs, SP 70.13330.2012 Load-bearing and enclosing structures, SP 70.13330.2012 updated version of SNiP 3.03.0187 "Load-bearing and enclosing structures" and SP 28.13330.2017 "Protection of building structures from corrosion."

The construction materials laid down in the project comply with the requirements of environmental, sanitary, fire and other regulatory documents for the design, construction and operation of the building, taking into account the technical and economic feasibility in specific climatic conditions of construction (SP 131.13330.2012).

BUILDING ROOF SPACE PLANNING SOLUTIONS

Space planning solutions are developed taking into account the requirements of the engineering specification coming from the Customer.

The class of the building of the house of culture is II.

Degree of fire resistance - II.

Fire functional safety class - F2.1

As a relative elevation of 0.000, the level of the clean floor of the first floor of the building is taken.

The building of the house of culture of complex shape, one-story and four-story .

The sizes in axes of 38.97х54.26 m.

The height of the rooms to the bottom of the projecting structures on the 1st floor is 3.85 m, 3.7 m and 7.95 m; on the 2nd floor is 3.7 m and 3.65 m.

Under the part of the building is a basement. The internal dimensions of the basement are 5.6x 14 m. The height of the basement is 2.75 m.

The main entrance to the building is provided along the main facade, oriented centrally .

On each floor there are complexes of premises for a certain socio-cultural purpose.

On the ground floor there is an auditorium, a discosal, a dance hall, bathrooms, and an electric shield.

On the second floor there is a dance hall, technical facilities, offices.

In the building of the House of Culture there are two staircases with access through the corridors and the lobby outside.

Spaces located on the first and second floors are linked by internal stairs of the first type.

The auditorium on the ground floor has an independent entrance .

Thermal unit and water metering unit are located in basement.

Access to the roof of the building is provided through a hatch in the corridor along a metal vertical staircase of type P1 .

The existing roof of the main building is made of metal pieces with a paint coating on a wooden grating made of trimmed bars with a section of 50x50.

Auditory windows are made in attic space for natural ventilation.

Attachment of sheets to each other is absent or made both in wave and between waves.

The roof to be designed will be the following structure (bottom up):

Essential building system (beam 200 x 200 mm, spacing 2000 mm)

Sparse screen (50 x 50 mm bar, 250 mm spacing)

Solid grating - FSF plate (12 mm thick)

Lining carpet for flexible tiles

Flexible shingle SHINGLAS Samba (color - malachite)

Lining carpets for flexible tiles, presented in two versions on mechanical fixation - ANDEREP PROF and self-adhesive ANDEREP BARRIER, are designed for effective waterproofing of the roof from flexible tiles.

For the main mechanical attachment of the Ultra series flexible tiles, special galvanized roofing nails with a cap diameter of at least 9 mm are used.

For fixation of flexible tile of Ultra series in places of fractures, fractures and roofing stands, bitumen-polymer gluing cold TECHNONICOL FIXER mastic is used.

Justification of design solutions and measures

Observance of required heat-shielding characteristics of roof structures

Thermal protection solutions are not required for this project.

Waterproofing and steam insulation of building premises

Measures for waterproofing and steam insulation of the designed roof are carried out due to the use of ANDEREP lining material made on the basis of high-strength polyester material in the pie design.

Measures to ensure fire safety of the building

Taking into account the requirements of the "Technical Regulations on Fire Safety Requirements" dated 04.07.2008 The following decisions were taken:

- metal reinforcement beams of rafters wooden structures (I-beam of two channels No. 20 *) to be painted with fire-retardant intumescent paint VUP2 1.8 mm thick to reach the limit R60.

- protection of wooden structures is carried out by fire-retardant impregnation Pirilax with antiseptic effect for a solid and rarefied grating - in one layer (flow rate - 100g per 1m2).

The fire resistance of structures and materials, as well as the limits of the spread of fire in them, were adopted in accordance with the Federal Law of July 22, 2008 No. 123FZ as amended by 10.07.2012 (No. 123FZ from 22.07.2008 as amended by 10.07.2012).

Protection of building structures from destruction

To protect against corrosion, metal structures are protected by corrosion resistant coatings in accordance with GOST 9301.

To protect wooden structures from rotting, Pirilax is impregnated with an antiseptic effect for a solid and rarefied grating - in one layer (flow rate - 100g per 1m2)

Protection of building structures against corrosion shall be performed in accordance with the requirements of SP 72.13330.2016 "Protection of building structures and structures against corrosion."

Existing slopes and the shape of the pitched roof prevent the formation of ice and the accumulation of snow, therefore, the risks of deformation and destruction from the snow load are minimized.

Another factor that can affect the roofing process is the impact of wind flows. Through the decompressions in the existing roof structure, the wind flow penetrates under the roof base, thus increasing the pressure inside the building, while the breaking force of the wind increases.

To prevent destruction of roofing structures in the designed roof structure, leaks and decompressions are not allowed.