Construction without a professional engineering design is always a risk. In this case, the “creative” approach to choosing materials and phasing the work resulted in the building becoming fragmented, losing its overall stability.
Reason for contacting: “A house that is falling apart at the seams”
The owner was faced with large-scale deformation of the building, which manifested itself in:
- The damage affected both load-bearing walls and partitions, appearing both inside and outside.
- The cracks were concentrated at the joints of walls erected at different times, as well as in areas of stress concentration – near door and window openings.
- The use of different wall materials resulted in different parts of the building having different modulus of elasticity and coefficient of thermal expansion.
Problem: Lack of a unified structural framework
The main engineering error was the lack ofjoint work of structuresThe building, erected in stages without regard for the connection and reinforcement of joints, turned into a set of disconnected blocks.
- Different stages of construction resulted in different degrees of shrinkage.
- The slab foundation, despite its reliability, could not compensate for the lack of rigidity of the walls, which were made of various materials.
Technical solution: “Stitching” the building with the Stati-Cal system
The project’s goal was to integrate all parts of the building into a unified design. Stati-Cal technology was used for this purpose.
Methodology of work:
- Creation of reinforced belts:Horizontal grooves were cut into the joints of the brick (or block) masonry, into which spiral traction rods were inserted.States-BarStainless steel. Additionally, the Stati-Tie system was used to stabilize and reinforce the wall joints.
- Anchor andTThe yagi “sewed” the joints of the walls, giving them the ability to withstand tensile loads.
- A special non-shrink mortar ensured perfect adhesion of the reinforcement to the wall material, restoring the integrity of the structure.
Control and monitoring: 3D technologies guarding stability
Particular attention was paid to monitoring in the project. The most vulnerable areas were identified in collaboration with the owner, wherehigh-precision 3D beacons.
Why is this necessary?
- 3D control:Unlike conventional paper or plaster beacons, 3D systems record crack movement in three planes at once (width, shear, depth).
- Forecast:Monitoring allows us to ensure that after the walls have been stitched together, the deformations have stopped and the building has stabilized.
Padvantages of the solution
- The separate parts of the house now work as a single mechanism, adequately distributing the loads on the slab foundation.
- The formation of new cracks and the development of existing ones has been stopped.
- The entire work was completed within the masonry joints. After grouting, the house’s appearance remained unchanged—no steel channels disfiguring the façade.
The case in the Kharkiv region is a typical example of how modern engineering is correcting the mistakes of the past. The systemStati-Calallowed us to transform a “set of walls” into a reliable house, providing it with the rigidity that was not included at the construction stage.
