According to relevant statistics, 90% of house collapse accidents are caused by improper use of the following two houses:

1. House overload

Overload of house service load refers to that the dead load or live load exceeds the design load value due to various reasons during the use of the house, which makes the bearing capacity of the design component insufficient, and the component will be damaged in serious cases.

Common overload of service load mainly includes: increasing dead load or live load without authorization, changing the use of the original structure, etc. For example, large machinery and equipment, additional floors and buildings, and warehouse of machine room for ordinary housing are added.

Overload of house service load will cause regular damage, deformation and cracking to structural members. For example, deformation, displacement, inclination and cracks of beams and slab columns will occur. Long term overloading will cause sudden damage to the structure and sudden housing safety accidents.

The overload use of the house not only expands the quality defects of the original house structure, accelerates the aging of the house, but also reduces the service life of the house, and its harm cannot be underestimated.

Therefore, if it is necessary to significantly increase the house load, it is recommended to entrust a qualified house safety appraisal agency to conduct appraisal and evaluation, so as to ensure the safe use of the structure after increasing the load.

2. Dismantle and change the bearing structure at will

With the continuous improvement of people's demand for the use of housing space, structural demolition and modification is commonplace, but if the load bearing structure is wantonly changed, it will be a big problem!

The load-bearing structure, like the skeleton of the human body, is an important part in determining the safety of a house. Dismantling and changing bearing structures at will will not only affect the overall stability of the structure, but also weaken the earthquake resistance of the house. Once natural disasters occur, the consequences will be unimaginable.

Therefore, it is not recommended to dismantle or change the load-bearing structure of the house if it is unnecessary. If it is necessary to dismantle or change, a professional house safety appraisal institution must be entrusted to conduct structural safety appraisal. On the one hand, it is to fully understand the current safety status of the building structure and analyze the reliability of the transformation through demonstration; on the other hand, it is used as the data basis for the subsequent reinforcement design.

Therefore, whether it is to increase the load or to dismantle and modify the load-bearing structure, it is necessary to go through the identification and design of structural reinforcement, and then use structural reinforcement materials to enhance the load.