In late November, the main project of the Shenshan West Expansion Project of Guangdong Provincial Expressway Co., Ltd. was completed, and the main line and service area of ​​the Shenshan West Expansion TJ12 project passed the acceptance inspection. The TJ12 contract section of the Shenshan West Expressway Expansion is a “4 to 8” three-dimensional and comprehensive expansion project, covering the construction contents of roadbed, bridges, pavement, building construction, traffic safety, greening and pipeline demolition.

As mentioned earlier, the north and south areas of the Changsha Bay Service Area, where Yexing was responsible for the detailed design and construction and installation of the ETFE air pillow membrane structure roof, are like two leaping blue whales, playing between the azure sea and sky. In addition, many service areas of the Shenzhen-Shantou West Expressway Expansion and Reconstruction Project have absorbed local characteristics and set up new signs for local culture: the Shenzhen-Shantou Service Area combines the development requirements of Shenzhen’s modern urban economic circle, and its appearance simulates new green shoots, implying the construction of a vibrant commercial project site, creating the country’s first double-facade service area commercial complex; the Shatin Service Area uses Xunliao Bay in Huizhou City as a conceptual prototype, adopts an arc curve structure, and its facade integrates modern design techniques with Lingnan courtyard culture.

Among them, the Taohe Service Area, which is positioned as a “truck-friendly” basic service area, takes “technology, green, and high quality” as its construction concept, combines local industrial characteristics, and builds a “infrastructure + cultural tourism” integrated development model to help the “hundreds of millions of projects” in depth. The architectural shape of the service building is inspired by the history of Taohe and the shape of pottery, and uses an array of five circular concrete main structures for a staggered layout, which won high praise from the acceptance team.

As a professional membrane structure contractor for the Taohe Service Area Project of the Shenzhen-Shanwei West Reconstruction and Expansion Project, Yexing is responsible for the in-depth design and construction and installation of the atrium funnel ETFE membrane structure of the service building in the north and south areas of Taohe. This project is a small atrium membrane structure. The initial plan used a steel structure skeleton to support the ETFE membrane, but the appearance could not achieve the ideal effect, giving people a messy and obstructive feeling. After discussion and research by all parties, it was determined to use a cable-supported membrane structure, using a cross-diamond cable grid cylinder + a single-layer transparent ETFE membrane.

The combination of cables and ETFE looks lighter, and at the same time, the lower part is open, so that people and the pool can interact, expressing the idea of ​​”four waters returning to the hall” and showing exquisite ideas and elegant beauty. The membrane surface is a funnel-shaped integral membrane surface. It is difficult to achieve coordinated force between the upper and lower ring beams, cable nets, and membrane surfaces during installation. Through the adjustment of the cable head, cable clamp, and membrane upper and lower ring aluminum clamps, the entire structure finally reaches an ideal balance state.

This project marks a major innovation in the field of domestic construction. It uses a single-layer annular cable net support structure for the first time, combined with a vertical annular single-layer ETFE membrane structure, showing the perfect fusion of engineering technology and modern architectural aesthetics.

After the completion and opening of the Shenzhen-Shanwei West Expressway Reconstruction and Expansion Project, the connection between the Shenzhen-Shanwei Special Cooperation Zone and Shenzhen, Shanwei and other places will be closer, which will help expand the capacity of the main transportation channels in eastern Guangdong, improve the layout of the expressway network, promote economic development and industrial upgrading in eastern Guangdong, and help the Shenzhen-Shanwei Special Cooperation Zone become the eastern gateway of the Guangdong-Hong Kong-Macao Greater Bay Area and promote the economic integration process of the Guangdong-Hong Kong-Macao Greater Bay Area.

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