PLAXIS - Concrete Diaphragm Quay Walls

Jyotirmoy Sircar — Wed, 19 Aug 2020 15:31:22 GMT

We wanted to know if PLAXIS can model a concrete diaphragm quay wall (wharf) structure. The wharf consists of concrete diaphragm wall on waterside against which the ships dock) and landside and a series of vertical concrete elements called barrettes (frame elements) embedded almost full height/depth in soil. The top of the barrettes are connected to the diaphragm walls in the transverse direction by concrete beams. There are longitudinal beams on top of waterside/ landside quay walls. The soil consists of clay and sand layers. The whole structure is known as a closed wharf structure (since you have a wall at the front and the back)

We had a few questions:

1) Is PLAXIS a plane strain based software?

2) Does PLAXIS predict hinging strains/moments and cracking in the concrete elements (across height) embedded in soil?

3) Is it possible to extract bending moments and shears of the frame elements, the wall elements, and the beams?

4) Can PLAXIS model the construction sequence of the whole structure (as against the final condition)?

5) How are seismic loads inputted into the PLAXIS model? Is it inputted as just a PGA or as a spectra?

6) Though the "structure" consists of separate elements, they are all interconnected and behave as a single mass. Does PLAXIS provide a global "performance"?

7) Can PLAXIS also indicate if there is an issues with global instability (Bishop's method) etc.?

8) How does PLAXIS model the soil structure interaction (interface between structural concrete elements) and surrounding soils?

Thanks.

Ask A Question I

Wed, 19 Aug 2020 01:18:05 GMT

Ask a question in a forum.

Jyotirmoy Sircar's Activities

PLAXIS - Concrete Diaphragm Quay Walls

Ask A Question I