1.   The roof support structure had collapsed and the entire weight was bearing down on the ceiling.

2.   After firefighters had contained the fire, the structure collapsed into an adjoining vacant lot on its north side.

3.   Family values have become a big political issue in Britain as evidence mounts that traditional structures are collapsing.

4.   If the trees are removed, the structures may also collapse.

5.   If this entire structure collapses, it will take a long time to restore it.

6.   The structure collapsed when a boom in use at the top broke loose.

7.   There may be more damage than one would have suspected, he added, but under most scenarios the structures will not collapse.

8.   Fears that the structure would collapse hindered rescuers.

9.   Nearby villagers said they heard a roar when the giant dome-shaped structure collapsed.

10.   Rescue efforts were hampered by the danger the structure would collapse.