A spectacular viewing platform visible from afar is the architectural highlight of the Meixi International New City, a city expansion of Changsa, China. The conical-shaped double helix with a height of 98 ft provides a 360-degree view, including the artificial Meixi lake, which covers an area of 4,305,564 ft².
KSP Jürgen Engel Architekten, together with the Weiske + Partner structural engineers, developed different ideas for the project in 2013. The decision was made in favor of the helix in its present form. The engineers from Weiske + Partner used the FEA software RFEM for the structural analysis of the spatial structure.
Weiske + Partner GmbH
Consulting Engineers VBI
weiske-partner.de
Model of Meixi Urban Helix, Changsha in RFEM (© Weiske + Partner GmbH)
KSP Jürgen Engel Architekten, together with the Weiske + Partner structural engineers, developed different ideas for the project in 2013. The decision was made in favor of the helix in its present form. The engineers from Weiske + Partner used the FEA software RFEM for the structural analysis of the spatial structure.
Weiske + Partner GmbH
Consulting Engineers VBI
weiske-partner.de
Model of Meixi Urban Helix, Changsha in RFEM (© Weiske + Partner GmbH)
Steel Structure
No Download Possible
Customer Project / View Only
Number of Nodes | 1323 |
Number of Lines | 2187 |
Number of Members | 2184 |
Number of Surfaces | 0 |
Number of Solids | 0 |
Number of Load Cases | 7 |
Number of Load Combinations | 14 |
Number of Result Combinations | 10 |
Total Weight | 8434.938 tons |
Dimensions (Metric) | 76.710 x 34.707 x 76.245 m |
Dimensions (Imperial) | 251.67 x 113.87 x 250.15 feet |
Plate girder is an economical choice for long spans construction. I-section steel plate girder typically has a deep web to maximize its shear capacity and flange separation, yet thin web to minimize the self-weight. Due to its large height-to-thickness (h/tw) ratio, transverse stiffeners may be required to stiffen the slender web.
Understanding steel connection rigidity is crucial in structural design. Often, connections are treated as strictly pinned or rigid, but this can lead to uneconomical or even dangerous designs. Explore how Dlubal Software's RFEM and Steel Joints add-on help verify connection stiffness and moment resistance, ensuring safer and more economical designs.
The three types of moment frames (Ordinary, Intermediate, Special) are available in the Steel Design add-on of RFEM 6. The seismic design result according to AISC 341-22 is categorized into two sections: member requirements and connection requirements.
To evaluate whether it is also necessary to consider the second-order analysis in a dynamic calculation, the sensitivity coefficient of interstory drift θ is provided in EN 1998‑1, Sections 2.2.2 and 4.4.2.2. It can be calculated and analyzed using RFEM 6 and RSTAB 9.
- Numerous component types, such as base and end plates, web angles, fin plates, gusset plates, stiffeners, tapers, or ribs for easy input of typical connection situations
- Universally applicable basic components (such as plates, welds, bolts, auxiliary planes) for modeling complex connection situations
- Graphical display of the connection geometry with dynamic updating during the input
- Wide range of cross-section shapes: I-sections, U-sections, angles, T-sections, hollow sections, built-up cross-sections and thin-walled sections
- Library in the Dlubal Center with a large number of program-side template connections, including user-defined templates
- Automatic adaptation of the connection geometry based on the relative arrangement of the components to each other – even in case of subsequent editing of the structural components
When generating shear walls and deep beams, you can assign not only surfaces and cells, but also members.
In the ultimate configuration of the steel joint design, you have the option to modify the limit plastic strain for welds.
The "Base Plate" component allows you to design base plate connections with cast-in anchors. In this case, plates, welds, anchorages, and steel-concrete interaction are analyzed.
Recommended Products for You