What is the architectural structure of Sydney Opera House?

1. The appearance of Sydney Opera House is three groups of huge shells, which stand on the pedestal of cast-in-place reinforced concrete structure with a length of186m from north to south and a width of 97m from east to west.

2. The first group of shells is on the west side of the lot, with four pairs of shells arranged in a string, three pairs facing north and one pair facing south, and there is a big concert hall inside;

3. The second group is on the east side of the lot, roughly parallel to the first group, with the same form but slightly smaller scale, and the opera house is inside;

4. The third group is the smallest group in their southwest, consisting of two pairs of shells, and there is a restaurant in it;

5. Other rooms are cleverly arranged on the pedestal. The entrance of the whole building complex is at the southern end, with a large step 97 meters wide. The vehicle entrance and parking lot are located under the big steps.