Louisiana super big bowl

• Construction time : 1971 - 1975
• Location : New Orleans, Louisiana, USA

The world's outstanding dome sports facility is also the world's largest steel structure room, with a clear interior view without any support. In addition, this is the first multi-purpose, public-use facility in the world. Louisiana's super-large bowl of roofs, outstanding in New Orleans, has twice the area of ​​a football field. Roofed on a 4-hectare area in September 1987, there was enough room for 80,000 spectators to hear Pope John Paul II preach.

The super-large bowl of the roof, the magnificent building in New Orleans, can hold up to 87,000 people safely, on the occasion of the visit of the Pope to the soccer or performances of a multi-admired artist .

Some ancient Greek and Egyptian temples also have similar or even larger works, but 60% of the interior floor area of ​​these buildings is completely occupied by the pillow columns, leaving behind The premises are very modest compared to the size.

What is different is that today's effective design techniques, building materials and methods to create more efficient structures.

Football, basketball, baseball, tennis and racetrack competitions held inside can be 3.5m3 (125 million cubic feet, one block of English = 30,48 cm ³ ) of the Upside Down Bowl super big with performances of " Mardi Grass ", music festivals and concerts, as well as exhibitions of houses, parks and cars. In addition, circus troupes and skates are also often performances that are always sold out, surprising the public.

Birth of the project

Initially the dream of trader Dave Dixon in New Orleans, this wonder is considered a means of attracting big football federations. In 1966, the Louisiana legislature agreed with talented lobbyists, politicians and capitalists, through the Addition of a constitution that approved the state of the left-hand state to get money to build the project.

Cross section shows detailed structural design.

Built on the city's settlement. The super-large bowl of the roof has created a booming building wave with a total cost of up to $ 2 billion, the number of fully equipped hotels around the region increased by 150%. Economic researchers call this ". public works that can be used unprecedentedly ." and ". one of the wisest investments the state spends" . The project soon reaped financial success. Construction at a cost of $ 163 million from August 1971 to August 1975, the super-large bowl roof earned $ 4.6 billion in the first 20 years of use. Of these, $ 16.8 million paid federal taxes, and $ 83.6 million paid by local governments.

This work is also a technical construction wonder, designed by architect Arthur Q. Davis. All technical initiatives are effective, natural barriers to successfully overcome are not mistaken.

New Orleans is a construction city below sea level in marshland, the stadiums must be built at elevations above the water table. The huge annual rainfall flow requires a drainage system with a capacity of 1,305.0001 (345,000 gallons) to cover the circumference of the bowl. Then the accumulated water will gradually flow to the drainage system.

The construction of this huge frame is almost perfect.Shell made of steel, polyurethane and plastic.

Improve

In simple words, 96 structural steel columns are arranged in 4 rows, supporting a bearing ring that rests on the headrests (which can be rotated but cannot be moved horizontally) 10cm. These supports give the ring (also the roof) a flexible movement of about 8cm in any direction, to compensate for the expansion or contraction when the temperature changes, ensuring the integrity of the work. For stiffening braces in the wall, the frame has " K " -shaped bolts extending outward from below the 0.8km diameter of the ring.

The super-large bowl of the roof is listed in the World Record Book as the world's largest static (edge ​​to edge) structure, literally understood as being interconnected and hanging the roof with a diameter of 210m . Upside down bowl with thin cross-section configuration - a series of overlapping triangles from the central ring extending outward at the cusp. This vast interior requires special design conditions: electric and TV systems, advertising space, non-feedback balanced sound system, lighting, ventilation and air control, room fire and audience moving system. In addition to all these facilities, there is also a convertible artificial playing field surface, locally called " Mardi Grass " which can be changed from soccer field to baseball field and vice versa, yes Luxurious seating for spectators and gladiator facilities.

In New Orleans, Louisiana's super-large bowl of roofs exists and thrives, while some of the later stadiums are abandoned to change their names to commercial income (formerly Hoosier State Indiana's roof-building project before ) and others were completely wiped out (Astrodome in Houston and Kingdome in Seattle). The beautiful, immensely beautiful super-large Louisiana bowl, the stable structure always takes care of the public service that can be maintained, existed, and developed, a true wonder of the world.

Actual data:

• Main stadium area: 50,685 m ²
• Height: 82.3m
• Capacity for the concert (maximum): 87,500
• Cost: $ 163 million

Football matches are one of the main attractions of the super big bowl: there is enough power for a very large audience to enjoy the whole scene without being shielded.