Reinforced Concrete

It was the first tall building to be supported both inside and outside by a fireproof structural steel frame, though it also included reinforced concrete.

The facade includes embossed copper spandrels and louvers, tinted glass windows, and poured stucco surfaces.

The building has the largest reinforced concrete structure in the country, 115 meters high (377 ft.), 32 floors and 120 thousand square meters of built area, divided into six blocks, with a total of 1,160 apartments of varying sizes, according to an estimate of five thousand residents from different social classes and more than seventy commercial establishments.

Of reinforced concrete, the villa soon became an icon of modernism.

The "Black Rock" nickname is derived from the design of its facade, which consists of angled dark-gray granite piers alternating with dark-tinted glass.

The outer ring, which is built of load-bearing brick, includes all four exterior walls and the library carrel desks immediately inside them.

The tower body was constructed of reinforced concrete rings 50 cm thick that weigh a total of 17,000 tonnes, and the total tower weight is approximately 20,000 tonnes.

Central Plaza was also the tallest reinforced concrete building in the world, until it was surpassed by CITIC Plaza, Guangzhou in 1996.

The tower has a novel structural system called a "Ladder Core System" where the perimeter mega columns are connected to the central reinforced concrete core at every story as opposed to the typical configuration where they are only connected via outriggers at mechanical floors.

The two sections, and an entrance pavilion between them, are made of reinforced concrete.

Of reinforced concrete, the villa soon became an icon of modernism.

It is constructed in reinforced concrete in a geometric style, has 25 rooms on three levels, 800 square metres (8,600 sq ft) of internal space, an upper terrace with panoramic views, and a 7-metre-tall (23 ft) corner salon with floor-to-ceiling windows.

It was built entirely out of reinforced concrete in 1910 by Charles Macdonald, a folk artist, socialist and owner of a cement brick factory.

two-story reinforced concrete building with Spanish tile roof and Italian marble columns.