Tokyo's main Olympic stadium ready to fight heat

Construction of $1.4 billion main Tokyo Olympic venue has officially completed, constructors said on Saturday and is set to fight excessive heat with nature-inspired design. Japan's summer heat is a major concern for Tokyo 2020 officials, with doctors warning Games could see dely medical emergencies. five-story stium, designed by rewned Japanese architect Kengo Kuma, will seat 60,000 fans and ds to tritional techniques through prominent use of wood. Around 2,000 cubic meters of cedarwood were brought in from all of Japan's 47 prefectures, with an emphasis on wood from rrn Tohoku region hit by a devastating earthquake and tsunami in 2011. use of layered wooden capies is also a reference to 1,300-year-old five-story pagoda at Horyuji temple in western Nara prefecture, oldest wooden building in world.

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"Today, we were able to welcome completion of new national stium," Japan Sport Council (JSC) in charge of project said in a press release.

" new history will begin," it said.

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Built at a cost of 157 billion yen venue features "Grand Eaves of Wind," a top roof layer designed to let in wind and cool down temperature inside stium. A total of 185 large fans have also been set up and cooling mist emitters are installed at eight locations. Athletes, volunteers and spectators face sweltering Tokyo summer where mercury can easily reach 40 degrees Celsius (104 degrees Fahrenheit). main stium -- used for opening and closing ceremonies, as well as athletics and some football matches --  has been built in center of Tokyo on site of 1964 stium. It has t been completely smooth sailing, as original design, by Iraqi-British architect Zaha Hid, was jettisoned in July 2015 amid public outr over its $2 billion price tag -- which would have me it world's most expensive stium. 

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