collapse under (one's) own weight

Translations
рухнуть под (своим) собственным весом
The old building finally collapsed under its own weight.
Старое здание, наконец, рухнуло под собственным весом.
Definitions
To fail, break down, or be destroyed due to internal problems, flaws, or excessive complexity, rather than from outside forces. Often used to describe organizations, systems, or structures that become unsustainable because of their own size, inefficiency, or contradictions.
Words
collapse

verb
рухнуть
under

preposition
под
one

pronoun
собственным
s
own

adjective
собственным
weight

noun
весом