Importance of proper seismic joint design in buildings and their protection against water infiltration in Peru

Seismic joints are fundamental elements in building construction to mitigate the effects of earthquakes on structures. These joints allow different parts of a building to move independently during a seismic event, thereby avoiding structural failure. However, one of the recurring problems in these joints is water leakage, which can cause significant damage to the integrity of the structure and, in some cases, even compromise the safety of the people who live or work in the building.

Cyclone Yaku hit northern Peru in March 2021, generating heavy rains that caused floods and landslides in several areas of the country. The most affected regions were Piura, Lambayeque, La Libertad, and Lima.

The heavy rains caused rivers and streams to overflow, affecting homes, roads, and crops. Local authorities declared emergencies and response protocols were activated to assist those affected.

According to media reports, at least 11 people died, and more than 26,000 people were affected by the rains and landslides.

Rain and natural disasters in Peru are common due to its geographical location and the presence of the Andes Mountains, which increases the risk of extreme weather events. Peruvian authorities are working on the implementation of prevention and risk management measures to reduce the impacts of these events on the population and the country’s infrastructure. Undoubtedly, the proper design of seismic joint systems is essential in Peru, a highly seismic country, and vulnerable to natural disasters.

Water leakage can have various causes, with the most common being inadequate selection and lack of maintenance of the joints. It must be determined whether the joints should be water-resistant or waterproof.

Water-resistant joints and waterproof joints are terms commonly used in the construction industry to describe a joint’s ability to seal or prevent water entry into a structure. However, there is a subtle difference between the two terms.

Water-resistant joints are those that offer moderate resistance to the passage of water, meaning they can withstand a certain amount of water infiltration without causing structural damage. These joints may be suitable in situations where limited exposure to humidity or rain is expected, but they are not suitable for situations of high exposure to humidity or rain.

On the other hand, waterproof joints are those designed to offer complete protection against water entry into a structure. These joints are commonly used in situations where high exposure to humidity or rain is expected, such as in buildings located in coastal areas or regions with high precipitation. Waterproof joints are typically more expensive and require greater effort in their installation and maintenance, but they are essential to ensure the integrity of the structure and prevent costly damage in the future.

In summary, while water-resistant joints can withstand a certain amount of water infiltration, waterproof joints are designed to offer complete protection against water entry into the structure. It is important to take into account the climatic conditions and specific needs of the structure when selecting the appropriate type of joint for installation.

It is important to note that water leakage in seismic joints not only affects the structural integrity of buildings but can also generate health problems, such as the proliferation of fungi and bacteria that can cause respiratory diseases.

To prevent water leakage in seismic joints, it is essential to have proper and periodic maintenance, including joint sealing and review of their condition and conditions. Additionally, it is important to take into account the characteristics of the terrain where the building is constructed, as well as the climatic conditions of the area.

In conclusion, water leaks in seismic joints can have serious consequences for the structural integrity of a building and the health of its occupants. It is important to take preventive measures in the design and maintenance to ensure the safety and durability of constructions. The appropriate choice of seismic joint system is a fundamental factor in preventing water leaks and ensuring the safety and durability of the structure over time. It is recommended to seek the advice of specialists in the design and construction of seismic joints to ensure the appropriate choice of system and the correct execution of installation and maintenance work.