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Anonymous users2024-01-24Do you want to reinforce? With such professional technology, few people are willing to provide free consultation.
You can add it, depending on how many meters you have a span.
The height of the 8-meter span beam is 500mm too small, the stiffness of the beam is not enough, and the deflection is too large, cracks will inevitably occur, and if the crack width is not greater than that, it is still acceptable. (The stiffness of the beam is small, and no matter how much reinforcement there is, it is useless).
Danger, find a property as soon as possible, report the danger, do not contain a lake.
It's hard to judge based on your description alone, because there are many factors related to the safety of the beam. The thickness of the steel bar, the cement number, the sand and gravel and other quality problems, as well as the bearing capacity, the depth of the cracks at both ends, the causes, etc. It is necessary to ask a professional to confirm on site.
You need to ask the property to find an expert to argue what is going on.