Design standard of elevator counterweight

If the elevator pit can't sit directly on the ground, it should be ensured that the elevator pit can't move, and it should be closed or used as a warehouse. This is my understanding, and the following conditions must be met. This is the most important thing: the counterweight bracket of the elevator should be equipped with safety tongs. In this case, the counterweight guide rail must be solid, not hollow. What does ambition mean? There is a detailed explanation in the specification, which seems to be GB503 10.