Hangzhou International Conference Center

Hangzhou International Conference Center

Hangzhou International Conference Center, located in Hangzhou City, Zhejiang Province, China, is a large-scale comprehensive building integrating conference, catering and accommodation. It is also one of the important symbols of Hangzhou.

The construction of Hangzhou International Conference Center started on October 12, 2005 and was completed on December 26, 2010;

It started operation on December 27, 2010.

Hangzhou International Conference Center covers an area of 47810 square meters, with a total construction area of 126296 square meters.

Construction process

On May 23, 2003, the Management Committee of Hangzhou Qianjiang New City solicited the planning and architectural plans for Hangzhou International Conference Center.

On October 12, 2005, the construction of Hangzhou International Conference Center started.

On December 26, 2010, Hangzhou International Conference Center project was completed;

On December 27, Hangzhou International Conference Center opened for business and held a ceremony.

Building location

Regional location

Hangzhou International Conference Center is located in the core area of Qianjiang New Town, Hangzhou City, Zhejiang Province, China. It is on the south side of the East-West main axis of Qianjiang New Town core area. The conference center is about 500 meters away from Qiantang River Waterway in the East, 1.4 kilometers away from Xixing bridge in the South and 0.45 kilometers away from Hangzhou citizen center in the northwest.

 

Route

The route through Hangzhou International Conference Center is Xinye Road (North), Jiefang East Road (South), Fuchun Road (West) and Zhijiang Road (East); the rail transit route through the conference center is Hangzhou Metro Line 4, which is called citizen center station.

 

Architectural design

Design concept

According to the principles of symbolism, coordination, functionality and innovation, Hangzhou International Conference Center adopts the spherical "sun" design concept, and adopts the giant sphere scheme of Canada ppa-ott. The main color is gold, and the curtain wall adopts the combination of modern composite plate and golden glass. The whole building is resplendent, just like a golden sun, reflecting the beauty of Hangzhou as a romantic city Value orientation.

At the same time, Hangzhou International Conference Center and Hangzhou Grand Theater, which are half moon shaped and silver in tone, echo each other like a pair of sisters, one gold and one silver, one Yin and one Yang, one lack and one surplus. This group of giant sculpture like buildings standing in the core of Hangzhou city not only has a clear symbolic meaning, but also a good hint of Hangzhou's past and future, In the Qiantang River, the sun and the moon shine together, making it a new symbol of Hangzhou and Qianjiang new city.

 

Design parameters

Hangzhou International Conference Center covers an area of 47810 square meters, with a total construction area of 126296 square meters, a total of 19 floors, height and diameter of 85 meters. Among them, the total construction area above ground is 74209 square meters, and the total underground construction area is 52087 square meters. There are 445 underground parking spaces, 2000 square meters of podium, 1000 halls and more than 400 guest rooms in the main building.

 

Structural layout

Overall layout

Hangzhou International Conference Center is mainly composed of basement, ellipsoidal podium and spherical main building.

 

Main structure

The facade of the main building of Hangzhou International Conference Center is mainly in gold color, in which the main building is a hemispherical composite space, the podium is a curved space, the dome roof is a ribbed ring spherical reticulated shell, the skirt roof is a steel tube truss space structure with intersecting nodes, the outer enclosure of the main building is a hidden frame golden glass curtain wall system; the outer enclosure of the podium is a cable mesh supporting curtain wall system, and the skirt roof is a steel tube truss space structure Self insulation titanium metal plate roof and point glass roof are used.

 

 

Detail structure

Hangzhou International Conference Center adopts spatial two-way C-shaped all steel frame system, in which the main building is a special steel frame supporting structure system, which is composed of the frame distributed along the circumference and radial direction and the vertical support through the floor beam and floor panel to form the vertical load-bearing system and the anti side plum system. The two podium's superimposed ellipsoidal top shell adopts the large-span spatial pipe truss structure system.

One section of the podium truss of Hangzhou International Conference Center is connected with the main building through the corbel on the frame column of the main building. Each frame column of the main building bears the horizontal load, vertical load and bending moment generated by the corresponding truss of the podium; the other end of the podium truss is connected with the podium column or support through the node.

 

Ancillary facilities

Citizen square

The above ground part of Hangzhou International Conference Center is the citizen square, which is decorated with night fountains, tree plantations and other landscapes around the conference center.

 

leisure sports

Hangzhou International Conference Center has leisure and sports areas on the 16th floor and above, with indoor swimming pool, sauna area, gymnasium, etc.

 

Construction achievements

Technical problems

Construction difficulties

Design

After adopting the spherical "sun" scheme, Hangzhou International Conference Center has carried out a lot of modification and adjustment work, and is facing great challenges in many aspects, such as function, structure, equipment, fire control, operation, etc. There is a deep cultural foundation behind the architecture with personality. First of all, it needs the support of thought, concept and technology. In order to achieve the coordination of architectural form and architectural function, in the process of deepening the scheme, how to improve the architectural function has become a difficult problem in the construction drawing design stage of Hangzhou International Conference Center on the premise of having determined the architectural form.

 

Construction

1. Control and adjustment of ball forming accuracy

The main building of Hangzhou International Conference Center is a large hemisphere with a diameter of 85 meters. The external decorative metal and glass curtain walls of the structure have special shape and stress characteristics (that is, the inclination of the inner and outer columns of the structure changes with the height of the structure, and the inclined columns have the tendency to increase the inclination angle of deformation "# how to ensure the plane and overall roundness of the large structure), and how to reduce the inclination as much as possible Installation error is a prominent technical problem.

2. Safety and stable state control of structure in hoisting process

Hangzhou International Conference Center has a unique spherical shape, which makes its integrity stress characteristics remarkable. The inclination of the inner and outer columns of the structure will increase the additional bending moment and deformation under the vertical load, that is, the gravity second-order effect is significant. At this time, the hoop effect of the ring beam on the structural column is very important for the overall stress of the structure. In the construction process, the semi forming state of the structure makes the difference between the safety, stability and design state of the structure obvious The influence of the additional horizontal load of the attached tower crane on the unformed structure is also more prominent. How to ensure the safety of the structure in the installation process is the prominent technical difficulty and key point of on-site installation.

3. Installation technology of dome structure

The dome structure on the top of the main building of Hangzhou International Conference Center is located at the top of 85 meters of the sphere. The structure is a single shell structure, which is located at the center of the sphere on the plane, and its lower 5-19 floors are hollowed out. At the same time, the span and area of the dome are large, and the overall stiffness of the structure is small. How to install a special structure in a special space is also a technical difficulty of the project at that time.

 

technological innovation

Design

1. In order to ensure the safety of the engineering structure, at the same time, fully meet the requirements of architectural design, create conditions for architectural design, and achieve the perfect combination of technology and art.

2. Research on application technology of super large cast steel joints in civil buildings solves a large number of field welding construction problems of complex joints, effectively ensures the construction quality, and at the same time, the joints are smooth, meeting the requirements of architectural appearance.

3. Research on 25m span curved steel structure space transfer truss supporting vertical load of upper 12 floors.

4. Research on crack control technology of axial force increasing under complex floor structure system effectively solves the problem of large axial force and crack control.

Construction

1. Research on the manufacturing and residual stress reduction technology of steel pipe joints, single machine hoisting technology of irregular large steel structure components and installation precision control technology of special-shaped inclined structure. The three technical research results were respectively awarded the provincial construction method of Zhejiang Province in 2007 and 2010.

2. Theoretical and experimental research technology of super large complex cast steel joint of special-shaped high-rise steel structure, simulation analysis and on-line real-time monitoring technology of the whole construction process of special-shaped high-rise steel structure, and research technology of welding additional stress of special-shaped space full welding system components. The three technological research achievements are registered as scientific and technological achievements of Zhejiang Province