Unloading Area of an Industrial Site in Isère, France
The engineering office Études Techniques Lyonnaises was in charge of planning and structural design of the foundation for a new unloading area of an industrial site in the Isère department in France. The new unloading area consists of a steel structure built on a foundation plate. The total area is divided into two parts: a traffic and unloading area for rail vehicles, and an area with a pit and a traffic zone for lift trucks.
|Structural Analysis||Études Techniques Lyonnaises, France|
Foundation Plate Dimensions
The foundation plate, made of reinforced concrete, absorbs the loads from 16 columns of the steel structure, which is supported by 41 bored piles. During the calculation, several different load types (live loads, snow loads, wind loads, and seismic loads) were applied to the foundation plate.
In the pit area, the filling loads were applied to the foundation plate. In the traffic area with rail vehicles, moving loads were generated using the RF‑MOVE Surfaces add-on module. A total of 40 load cases was selected for the design of the foundation plate. After the automatic generation of load combinations, the filter settings were applied to keep only the most relevant combinations.
Foundation Plate and Modeling
The foundation plate, with a length of about 102 ft and a width of about 36 ft, was modeled as a surface element. The foundation bases under the steel columns are restrained in the foundation plate.
The loads of the steel structure were assigned as nodal loads to the base heads. In RFEM, the elastic supports represent the bored piles. The RFEM feature "Elastic Support via Column in Z" allowed for the adjustment of the FE mesh at the pile heads.
To generate the moving loads due to rail vehicles, it was necessary to define the position of the axes, the loading, and the direction of the rail vehicles in RF‑MOVE Surfaces. Based on the data entered, the add-on module generated several load cases automatically.
Do you have questions or need advice?
Contact our free e-mail, chat, or forum support or find various suggested solutions and useful tips on our FAQ page.
This article compares it with the following article: Design of concrete columns subjected to centric compression with RF-CONCRETE Members . It is therefore a question of taking exactly the same theoretical application carried out on RF-CONCRETE Members and reproducing it on RF-CONCRETE Columns. Thus, the objective is to compare the different input parameters and the results obtained for the two additional modules for the design of column -type concrete members.
The material model Orthotropic Masonry 2D is an elastoplastic model that additionally allows softening of the material, which can be different in the local x- and y-direction of a surface. The material model is suitable for (unreinforced) masonry walls with in-plane loads.
- I obtain different results when comparing the deformation analysis in the RF‑CONCRETE add-on modules and another calculation program. What could be the reason for this?
- For the design, I can only select the surrounding reinforcement for a rectangular cross-section. Why?
- What is the best way to consider steel fiber concrete in the structural analysis software RFEM?
- How can I deactivate displaying symbols for the FE mesh refinement?
- What does the "Crack formation in the first 28 days" option means?
- I have recently purchased RSTAB with the CONCRETE add-on module. Can I use it to perform the stability analysis of reinforced concrete columns?
- How do I display some results of all load cases in the printout report, but other results of the selected load cases only?
- Is it also possible to subsequently deactivate the symbols for the FE mesh refinement in an existing graphic in a printout report?
- Why does the note 155) appear as a result of the reinforced concrete design of members for the existing stirrup reinforcement?
- Why do RF‑CONCRETE Members or CONCRETE determine a significantly higher provided reinforcement than the required reinforcement?
Programs Used for Structural Analysis
Structural engineering software for finite element analysis (FEA) of planar and spatial structural systems consisting of plates, walls, shells, members (beams), solids and contact elements
Design of reinforced concrete members and surfaces (plates, walls, planar structures, shells)
Generation of load cases from moving loads for surfaces