Design of a multi-storey building

The project consists in the design of a multy-storey building, having one of the following destinations:

Block of flats

Students acomodation hostel

Hotel

The building has UG+G+ 4Fl, meaning that has an underground floor, ground floor and 4 floors.

The envelope of the building consists of:

- load-bearing walls of reinforced concrete or non load-bearing walls of hollow brick or cellular concrete block masonry protected on the external face with al layer of efficient thermo insulating materials (fireproofed expanded polystyrene for face wall, mineral wool rigid plates, extruded polystyrene etc.);

- ventilated or un-ventilated could (insulated) terrace roof;

- the ground floor plate over unheated basement will be insulated on the ceiling of the basement;

- the doors and windows can be of multi-layer wood or PVC profiles with thermal insulating double or triple glassed window panels with Low CTE float glass. The windows will be provided with ventilating systems or with three opening positions in order to provide an adequate thermal protection and natural ventilation of the indoor space.

The structure will have:

Pedestrian or non-pedestrian reinforced concrete flat roof;

Monolithic or precast reinforced concrete shear walls mixed with lamellar frames;

Reinforced concrete stairs;

Elastic cross beams.

It is situated in the urban area, Brasov, having acces to all the city facilities: water supply, electricity, internet connection, connection to the sewerage infrastructure, acces roads and other public services.

The project must contain information and details about:

- the type and the composition of structural and for envelope elements ( walls, columns, floors, foundations, and roof);

- the joints of the main structural and for envelope elements;

- the heat conservation capacity of the building;

- the structural performance under the load combination that contain dead, snow, live loads and seismic action.

The thermal and structural design and the constructive details of the elements already mentioned.

The slope of the terrain is about 2%.

The project consists of :

Written part:

Project theme

Project content

Technical report

The design of the walls and roof for the hygrothermal conditions

The assesment of loads and design load combination

The computation of the shear walls sectional characteristics

Stress and strains analysis for the cross shear walls.

Drawings:

Current floor plan

Groundfloor plan

Cross section through the staircase

Rood plan

Consructive details.

Thermal insulation design

In order to obtain the thickness of the insulation layer a series of operations and computation are needed. The unidirectional specific thermal rezistance of a building element is calculated by the formula:

R_(0,ef)=R_si+?_(i=1)^n??d_i/?_i +R_se ? [m^2 k/W].

Where:

d-thickness of the layer

?- the thermal conductivity of the material

The thermal rezistance of each element of the building envelope will be compared with the minimum thermal rezistance (R_min).

The following condition has to be imposed:

Partea scrisa a proiectului de constructii civile II. Design of a multi-storey building.