What do you think of the "Bird's Nest"?

Simply put, it's 1. What a waste! What a waste! 2, the practical value is not comparable to its maintenance value. 3. Pursuing novel appearance and forgetting the practical value of architecture.

An open and transparent shell has basically no energy-saving measures. Except for more than 300 days during the Olympic Games, winter is a huge and cold steel structure building in the howling north wind, and in summer, the steel structure absorbs a lot of heat and becomes a huge stove. The internal service space must be completely regulated by the internal air conditioner, resulting in huge energy waste.

The foundation of formal beauty is economic practicability, technical feasibility and functional diversity. It is said that a lightweight plastic material was originally considered as the structure, but later it was replaced by a steel structure because of technical problems. Steel mesh interweaves, and the effect picture is a beautiful bird's nest. In fact, it may become a basket-a basket woven with steel structure.

Functionally, this is a place where 80,000 people must watch the performance. Tens of thousands of cast members will hold large-scale cultural performances and enter the venue for the opening and closing ceremonies. This means that there should be a space behind the stands that can meet the complex functions of sports events, cultural performances, live broadcasts and so on. General stadiums and gymnasiums hide these complex functional rooms in various ways, but in the design of "Bird's Nest", an open and transparent space is designed for the pursuit of facade. Imagine that under an open shell, all kinds of functional service spaces and air conditioning systems are exposed. In the renderings, the beautiful facade is likely to become an open shell in reality, exposing the chaotic structure and giving people a strange feeling.