The Vogtle Plant, Georgia's latest nuclear plant, reached an important milestone when the fourth concrete foundation was poured last week. The Vogtle plant will be the only four-unit nuclear power plant in the USA. Last week the concrete contractor completed the 7,000 cubic yard mat, where the reactor will be placed once the concrete cures. The concrete was poured in only 41 hours, matching the world's record for this type of reactor. These new reactors are among the first built in the U.S. in three decades.Photo © Georgia Power
Following this week fatal accident at Brazil's Sports Stadium, there are growing concerns that the scheduled date of completion on this venue, might not be achieved. The stadium, one of six, that has not been finished yet, is the venue that should host World Cup opening game in 2014. The collapse of a crane killed two workers at the construction site, and now the Brazilian government has started an investigation to determine what went wrong. The accident also caused damage to roofing at the stadium although it did not affect the stands, so the damage could be repair faster. Project officials are indicating that at least four possibles causes are been analyzed: crane breaking due to the roof's weight; crane operator error; a procedural mistake in attaching the roof to the crane; and the crane losing its footing in the ground due to unstable soil conditions.The builder has indicated that they have been following all safety procedures and this same operation has been carried out at least 38 times before. The construction project had gone 9.5 million man-hours without a serious accident.
Four World Trade Center has opened marking the first office tower at the World Trade Center site to open since Sep. 11,2001. The 72 story building, designed Fumihiko Maki, contains an exterior floor to ceiling glass which allows light to enter the building's interior. The 4 World Trade Center has also 80 foot perimeter column spans, and building corners' all column-free. The World Trade Center building exterior architecture resembles two glass obtuse edges on the southwest and northeast corners designed in such way that they appear to be slender and sharp. The wide lobby, almost 47 feet high and a block wide, is made of black granite that mirrors and image of the September 11 Memorial and the World Financial Center Once you arrive to the 68th floor you will get an impressive vista of the Statue of Liberty and surrounding areas. Last week a council of urban designers decided that One World Trade Center would be the tallest building in the United States.
Photo © @IOTAGLOBAL
- Bridge Over Schuylkill River along route 422
- Bridge Improvements at the intersection of Route 23 and Route 422
- Wide improvement program to resurface, patch and repair road surfaces
Miami could start construction on what could become the tallest building in the city, a 1,000 feet tower and amusement center in downtown Miami. The tall structure must be able to resist hurricane force winds is being designed by Arquitectonica's Bernardo Fort-Brescia and could be built by Tishman Construction, builder of both the first and the new World Trade Center. The observation tower, which could cost more than $300 million and has already received the FAA approval, is now one of the latest observation towers being designed as the worldwide trend of building observation towers continues. The Tokyo Skytree is one of the latest attraction rising more than 2,000 feet and it is considered the tallest in the world.
Photo by Next-One
Building amusement parks is so amazing and challenging that it is almost like being on the ride itself. Now, Kansas is building the tallest and fastest water slide ever, named the Verruckt Slide(German for insane). The slide being built at the Schlitterbahn Kansas City Waterpark is over 17 stories tall and could potentially exceed 62.5 mph speeds, that can be achieved at the World's fastest slide, Brazil's Insano. The slide incorporates new technology and design that allows to convey rafts all the way to the top of the water slide. The slide set to open on May 23, was designed by Jeff Henry, is over 140 feet tall and more than 260 steps must be climbed to get to the op of the slide.
Photo Noel Portugal
Central Concrete Supply Co., Inc., a business unit of U.S. Concrete, Inc.announced that it received an important award for Outstanding Construction, Structural Category from ACI. Central Concrete was a lead contractor on the Bay Area Bridge twelve years ago delivering over a quarter of a million cubic yards of concrete--equivalent to covering a football field with concrete, 153 feet thick. Central Concrete faced several concrete requirements such as concrete durability, CO2 reduction, rapid setting and pumpability. Central Concrete used more than 40 concrete mixes that were optimized to deliver the aggressive performance specified for this large-scale, technically challenging project, but Central Concrete's use of 25 percent to 50 percent cement replacement materials significantly reduced the Bay Bridge's carbon footprint.
Photo by Jitze
The Panama Canal expansion has reached 3 million cubic meter of concrete poured in the construction of the new locks. The milestone was achieved while pouring concrete on the wing wall located at the opposite ends of the lock complexes. These wing walls were designed using marine structural concrete, a mix that provides greater protection against corrosion so the reinforcement steel could last longer. To complete the lock complexes more than 1.3 million cubic meters of concrete still need to be poured as these locks are huge and larger than the one previously built. The Canal expansion is almost 70% completed and it should be completed by mid 2015. In the past, issues with the concrete mix, designed to last 100 years, caused some delays during the construction, but now the project is moving forward at a very fast pace.
It will be called Zaryadye Park. After more than 50 years without building a new park, Moscow will soon start a 13-acre public park in an area that was originally set to host the city's tallest skyscraper, and the world's largest hotel which was demolished in 2006. New York' firm, Diller Scofidio and Renfro, were selected to design the park that will include four different landscapes, each representing a unique Russian scenery, tundra, steppe, forest and marsh. These landscapes will have the technology to simulate temperature and weather conditions representing each geographic location. The architectural firm won an international design competition run by The Strelka Institute.
Photo © KBStrelka