Structural consolidation techniques

Principles of structural consolidation

Consolidation or consolidation indicates that process which occurs following a yielding structural failure due to either seismic events or degradation of the structure. The failure differential It happens vertically when you no longer have a connection between foundation and ground, leading to the formation of cracks on walls and floors that occur when the structure is no longer able to support the deformation.

Consolidated walls using piles

In general, consolidation is used for the implementation safety of a building, even in situations non-emergency, in fact it turns out to be necessary to adapt or give greater static nature. It is no coincidence that a synonym for consolidating is precisely theexecution of a structural reinforcement.

The company Systab Srl offers numerous products able to meet the needs of structural consolidation.

Consolidate meaning

To consolidate means to carry out an operation extremely complex characterized by many phases but what turns out to be of fundamental importance is the choice of the most appropriate techniques and materials. Building consolidations can be of different types.

Those regarding the component structural:

• Consolidation of the floor;
• Consolidation of walls;
• Roof consolidation.

Those that concern the characteristics of the materials:

• Reinforced concrete consolidation;
• Concrete consolidation;
• Consolidation of stone masonry.

It can also be had based on the almost and:

• Masonry restoration;
• Attic repair.

How to reinforce a masonry wall

The company Systab Srl offers several method for consolidation in the event of structural collapse of a house.

The imbalances between the ground and the foundation, caused by various reasons, can cause injuries more or less serious to the structures, for this reason Systab produces some expanding resins for the consolidation of the building.

It’s a technique minimally invasive, mainly used abroad, as it is not very well known in Italy.

The resins polyurethane are used for the improvement of the safety of all types of buildings and are excellent for several reasons, including the possibility of raising of the flooring and the total recovery of the building with subsidence in the foundations.
They come injected inside the ground through some cannulas housed in holes of about 25 mm and made penetrate as far as the lesions are located, swelling up to fill in the blanks.

We thus arrive at a increment of shear resistance and a lowering of the compressibility of the soil.

Based on the typology of foundation, subsidence and ground, the quantity to be injected, how many times and which type of resin is most suitable are chosen suitable.

Expanding resins have different advantages including:

• technology combined when inserting the micropile;
• absence of vibrations;
• costs very low;
• structure consolidated for long periods of time;
• interventions localized without collateral damage;
• times for very small execution.

Systab promotes biocompatible expanding resins, fully respectful of the environment, for:

• to waterproof from the water;
• fill the voids;
• restore the foundation;
• to compact the soil with an increase in mechanical resistance.

The resins run through every corner of the foundation, arriving at the support where a profit for the injection and their action spreads in the ground with a radius of 1.5 m. There is a operator specialized who monitors the structure for to check the success of the operation.

Consolidation techniques using expanding resins

For them, they also come expected checks in specific laboratories to verify their property plastics.

At the level of coststhey represent a good quality/price compromise but they are not always opportune especially in situations of more serious damage where it can to associate to the resins the preloaded micropiles pressed into place.

Structural consolidation of buildings

Other product Systab Srl it’s the preloaded pole. It is necessary in cases where the failure is significant and present throughout the structure, for this reason we will provide for replacement of the direct foundation with an indirect one, capable of transmit the load on deeper soils.

Consolidating with steel piles leads to a strengthening of the foundation and with very low invasive characteristics.
They present different peculiarity:

• 8 mm in thickness;
• diameter which varies between 76 and 114 mm;
• insertion between the different parts by screwing;
• length dependent on the geotechnical characteristics.

It is very important that the micropalo be well placed on the structure. For its realization several steps are performed:

• the plate is connected to the foundation with some tiles;
• you set a jack hydraulic;
• a is performed press-driving continuous, vibration-free;
• it happens preload of the stick;
• we move on to bolting between pole and plate;
• it happenscompletion of the pole by which it is brought to the height required for resurfacing the pavement.

They can even reach depth of which exceed 9 meters depending on the geotechnical conditions.

Pali precaricati Systab

I pali Systab they ensure multiple advantages including construction site basso impact, absence of vibrations, eventuality of lifting of the structure to recover from the collapse, times very short execution times (about 3 days) and easily accessible equipment movable.
The costs they vary depending on various elements such as the number, diameter and thickness of the pole.

Static consolidation of masonry buildings

There are situations where the pressed post is not particularly suitable, therefore Systab Srl suggests a palo screw equipped with discontinuous propellers. It is a very common type potential but still little used in Italy.

It is suitable for consolidating foundations where there is soil with scarce mechanical characteristics and combina the advantages of micropiles driven with low-impact construction sites.

Screwing piles into helical piles

This type of pole has characteristics of Removabilitysuitable for temporary structures, is equipped with propellers discontinuous screwed into the ground

Present one thickness variable between 8 and 12 mm, pole diameter of 76 mm, propeller diameter of 300/350 mm and length variable depending on the properties of the soil.

The phases of execution are the same as the preloaded ones. advantages of the screwed poles are the following:

• speed of installation;
• absence of vibrations;
• speed of shipbuilding operations;
• execution on different types of terrain;
• absence of waste material;
• capacity to raise the structure to recover from the subsidence;
• minimum impact on the soil;
• absence of soil extraction.

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THE EDITORIAL TEAM RECOMMENDS

Who to contact for the consolidation of structures

Systab Srlbased in Parma, is a company with more than 18 years of experience experienceleader in the foundation consolidation sector. Its techniciansexperts in the field, operate throughout the Italian territory to restore stability and safety to any type of building.
The company, after having analyzed in detail the intervention to be carried out, has the great merit to apply the most suitable technology to achieve optimal conditions at very low costs.

It offers no answers invasive using expanding resins, preloaded or screwed micropiles.
L’iter The project is followed by a group of specialized engineers and geologists who, carrying out an initial inspection completely free of charge, they conceive the best solution. These interventions also have the possibility of log in to 50% tax deductions until 2024.

In short, the Systab company is a point hinge to carry out the consolidation of foundations in a serious and safe manner. If you need a structural renovation all the information on the site Systab Srl or at 0521 1626033.