Office building in Shenzhen

Building use

Office building

Country/Region

China

Overview

Main structural members like shear walls, columns, and floors adopted composite components to increase their bearing capacity.

Basic information (construction date, number of stories, gross floor area, adopted design code, engineer(s), Contractor(s), etc.)

Construction date: 2014
Number of stories: 66
Gross floor area: 270,000m2
Adopted design code: GB 50223-2008; GB 50009-2012; GB 50010-2010; JGJ 3-2010; GB 50017-2003; JGJ 138-2001; GB 50204-2002; GB 50205-2002; GB 50045-95 (2005 edition); DBJ/T 15-92-2013; Decree No. 111; Jianzhi [2010] No. 109; Yuejian Shihan (2011) No. 580
Engineer(s): Arup, CCDI
Contractor(s): China Construction Third Engineering Bureau Co., Ltd

Issue and/or innovation

1. The innovative design of the structural system, as a super high-rise building built in an earthquake zone, breaks through the traditional design concept and method of the tube-in-tube structural system, and minimizes the size of the columns and beams of the outer frame instead of maximizing them. And the core tube with good seismic performance bears the main earthquake and wind effects. The design team demonstrated the safety and reliability of this design method through structural analysis and design.
2. Due to the needs of architectural effects, the design adopts the integrated design method of structure and curtain wall, and the columns and beams are completely eccentrically connected, so as to realize the interior space effect of the building without columns. The project team developed a set of methods, starting from the joints Stiffness sensitivity research, the influence of eccentric joints on components and the overall structure, research on the stress characteristics of joints themselves, structural design, and test verification have demonstrated that the safety of eccentric joints and the stability of columns can meet the design requirements.
3. The core tube of the super high-rise needs to be reduced in size in the high area. This project innovatively adopts the method of retracting four inclined walls at the same time to convert the shear wall, which is conducive to maintaining the high efficiency of the shear wall along the height of the building. form, so as to support the anti-side requirements of the whole building, this design method was later referred to and adopted by more and more super high-rise building designs.
4. In order to improve the vibration comfort of the building under typhoon, 8 high-power precision viscous dampers are installed inside the building, which can significantly improve the additional damping of the building and control the wind vibration effect, thereby further improving the comfort and comfort of the building. safety.
5. Due to the importance of the shear wall to the structural system, in-depth studies have been conducted on the seismic performance, design methods, and calculation and simulation of the shear wall to ensure that the seismic nonlinear analysis method can meet the requirements of the refined analysis of the shear wall.

Reason for composite solution

1. The shear wall adopts composite components, the main purpose is to improve the bearing capacity of the wall, which can reduce the amount of materials compared with the concrete wall, thin the wall, and increase the effective indoor area; at the same time, the combined shear wall has better seismic resistance Performance can ensure the overall seismic ductility of the structure. The core tube of the tower in this project is the most critical anti-side component, so the composite wall with good bearing capacity and good seismic performance is the most suitable choice.
2. The pillars on the ground of the tower are in the form of a steel structure. On the one hand, the size can be small, and on the other hand, it is also conducive to reducing the weight of the overall building and saving the cost of the building structure.
3. After the pillars of the tower enter the basement, the form of CFT is partially adopted in order to obtain smaller component sizes and architectural effects. Most of the rest adopt the form of SRC, that is, steel columns wrapped with concrete. It is beneficial to be integrated with the concrete structure of the basement, and on the other hand, it is also beneficial to reduce the need for long-term maintenance in the basement environment.
4. The floor of the tower is in the form of a combination of steel beams and concrete slabs. On the one hand, it is beneficial to improve the bearing capacity of the beam-slab system, thereby reducing the thickness of the structure and increasing the clear height of the building; on the other hand, it is also conducive to lightening the building The design of walls, columns, and foundations saves more materials; finally, the combination of steel beams and concrete floors can speed up construction, improve construction efficiency, and ensure that the project is completed on time.

Impact or effectiveness

The structural design of this building perfectly realizes the architectural intention. Whether it is the external facade effect or the internal use space, the building looks like a sculpture. 56 external thin columns extend from the diagrid frame at the bottom, forming a smooth arc. Converge at the top to form a crystal-shaped cap. Through the innovative and refined design of the structural system, the structural design is very economical. At the same time, it is precisely because of the innovation of its system and many solutions that the structural design of this project has passed many design experts from all over the country and Guangdong Province. times reviewed and approved, with very good reliability and security. When China Resources Building was completed, it was the tallest building by the Shenzhen Bay. In 2019, it won the “13th China Steel Structure Gold Award Project” issued by the National Construction Steel Structure Industry Conference, and the “Top Buildings and Urban Habitat” issued by the World Council of Tall Buildings and Urban Habitat (CTBUH). 2019 Best Tall Building (300m-399m Group) Award”. As a landmark building and an important member of the skyline of Shenzhen Bay, China Resources Building has attracted many people to come here for reference and appreciation, and through high-quality completion, it has set a value benchmark for architectural design and has had a positive effect on the environment and the community. Influence.