Projects
Structural Design and Analysis: Modification Of Existing Structures And New Vessel Support Frame
Industry
Manufacturing
Services
Civil & Structural Engineering, Stress Analysis
Location
UK
The challenge
As part of a larger plant upgrade program, a new access platform is required to enable access to instruments and valves. DOCAN Ltd have been contracted to perform the structural design and analysis for modification of the existing structure.
![vessel support frame design](https://docanco.com/wp-content/uploads/2024/06/vessel-support-frame-design-1.png)
The DOCAN solution
Firstly, a structural analysis consists of the existing supporting beams, existing tower structure, new platform and pipe supports and a separate support structure to the west has been modelled.
The following analysis was performed using STAAD Pro. Load cases considered included:
- Self-weight of the structure, piping and vessel
- Live loading
- Characteristic wind loading calculated to BS EN 1991-1-4
Additionally, a reinforcement plan of the existing structural framing is recommended due to high utilisation in analysis, coupled with unknowns such as material grades and corrosion, which raises some concerns.
![structural design of vessel support frame](https://docanco.com/wp-content/uploads/2024/06/structural-design-of-vessel-support-frame-1.png)
The outcome
DOCAN has designed and assessed a new access platform modified from the existing frame. Combined with additional reinforcement of the existing frame, the new platform provided adequate and safe support for the client’s requirements.