These had 3-meter thick reinforced concrete roofs with 2-meter thick walls.

The building is covered by a reinforced concrete roof of mansard profile, which houses the seventh storey.

He used his signature design of the reinforced concrete roof that varies in thickness from only 5/8 inch to 2 inches.

Steel trusses that hung from three huge portals supported the reinforced concrete roof.

In some cases, the reinforced concrete roof was sculpted to make the distinctive form of a pillbox less obvious from the air.

The hole appears to be the result of an excavation, not the gradual wearing away of the reinforced concrete roof, officials said.

The gang gained entry to the vault by using dynamite to blast a hole in its reinforced concrete roof.

From 1926 to 1941, a small reinforced concrete roof penthouse on the Main Navy building was used for radio and communication intercepts training.

The two long platforms were capable of accommodating the longest mail trains, covered by umbrella reinforced concrete roofs.

The reinforced concrete roof and park above are supported by concrete pillars spaced at 12 feet (3.66 m) intervals throughout both chambers.

Not only was this by a very big margin the largest reinforced concrete roof span in the world, but also it was assembled with enormous ingenuity.

I saw pieces of the reinforced concrete wall begin to crumble, and the reinforced concrete roof of our Turbine 7 began to fall.

In the UK, homeowners often constructed brick shelters with reinforced concrete roofs in backyards and gardens.

The project, Unlocking the Rylands, demolished the third extension, refurbished parts of the old building and erected a pitched roof over its reinforced concrete roof.

The walls were formed during RCC placement using removable metal forms; gallery ceiling was constructed using precast reinforced concrete roof panels.

Nearly all the buildings, with the exception of the buildings on the nitroglycerine hills which were light-weight, were steel framed buildings with triple-brick walls and bomb-proof reinforced concrete roofs.

It has a total surface area of 30,000 square metres and is approximately 400 metres long, with two subterranean levels protected by a steel reinforced concrete roof 12 metres thick resting on a sand cushion.

They said water and dirt had entered the hole, which was below a manhole, and breached the two-foot-thick reinforced concrete roof, damaging signal cables above the southbound express track, which is used by the Nos. 4 and 5 lines.

The station was rebuilt between 1937 and 1939 to a design by Charles Holden which features the large cube-shaped brick and glass ticket hall capped with a flat reinforced concrete roof and geometrical forms typical of the new stations built in this period.

You could use the ball like a pile-driver, dropping it through a reinforced concrete roof; you could slew the derrick to swing the ball like a pendulum; or you could use the horizontal dragline to draw it back for a forward swing.

From the outside, except for the different inputs (called Capri, Sorrento, Amalfi, Positano and Ischia, more exits), the complex is practically invisible as architectural work for the reinforced concrete roof are covered with soil where there are also grass and low vegetation, which blend in with its surroundings, effectively hiding the fact the structure.