The construction of the Shanghai World Financial Center was one structure worth exploring. As anyone could imagine, creating such a structure as the Shanghai World Financial Center requires knowledge that was not previously known, but with technology and testing, the project was completed on August 28, 2008.
The importance of developing building technologies to counteract the movement of the earth and strong winds in high-rise construction is important. It was originally planned to become the tallest building in the world, but due to the economic situation, Asian financial crises and other delays, the Shanghai World Financial Center, located in Shanghai, China, is eye-catching. Although it was under construction, the building’s dimensions were increased for two reasons we know about. After the decision to increase the gross area of WFC in Shanghai by 15%, there was also an increase in the moment of tipping from the wind forces by about 25%. Also used diagonal fixation. With changes in design, a wall of shear core maintenance was achieved, and the amount of steel needed for a robust design was reduced.
The first structure was called the megastructure, which actually consists of the main structural columns, main diagonals and belt trusses. The second is the concrete walls of the maintenance tier, which I mentioned above. The third system was the connection between the concrete wall of the core of the service and the mega-pillars that were made by suspended trusses ...
As a final project, LERA (Leslie E. Robertson Associates), Shanghai World Financial Center, consisting of three relatively narrow columns, compared with eighteen wide columns. An important area to mention is how the stiffness of the perimeter and the trusses has movement, and the scissors in the concrete walls of the maintenance core can be increased or decreased. All reliable design is more peaceful than in the previous World Trade Center in New York. The results of wind energy were different compared to those of the World Trade Center in New York based on intensive wind tests.
The earthquake for the construction of the Shanghai World Financial Center was intense. The project provides for a 200-year period for the return of the typhoon and a 2,000-year earthquake return. In the process of building its foundation, temporary support for both floor mats and lower concrete floors was made due to the use of top-down method, H-piles of large steel profiles extending from the stack to the ground surface ... Other The problems that come with this high growth, there were costs, as in any project. Since the cutoff was well below level, it cost too much to reinvent the existing pile. LERA determined that the existing pile foundation system they had could accept a wider expansion; they had a problem to reduce the weight of the original building by 10% or more; Another aspect they had to do was to redistribute the loads into a heap so that they could outrun the increased lateral loads coming from the wind and earthquakes.
For the construction of the Shanghai Financial Center or other buildings where winds are a problem, seismic effects usually include:
1. High base tipping moment and foundation design (wind, seismic)
2. High demand for shear near base (seismic)
3. High gravitational stresses in vertical elements (and the use of high-strength materials) to minimize structural dimensions for economic structural design and maximize net floor area
4. Differential axial shortening under the action of gravity, including the effect on floor slopes and outrigger forces
5. Development of plasticity of elements at the base of the structure with high compressive gravity (seismic)
6. Control lateral acceleration (wind)
7. Driving history drift (wind, seismic)
8. Damage control to enable repair (seismic)
9. Providing mechanisms for the dissipation of plastic energy and the prevention of brittle failures (seismic)
Each geographic location requires special, special requirements that need to be developed and tested when the project moves to a new level, for example, in the Shanghai World Financial Center ... Although other buildings were structured in this geographic location, but not with the same height and magnitude ...
