منشورات PLAXIS and Geotechnical Softwares على Telegram

اکسل طراحی شمع 👇👇👇

PLAXIS and Geotechnical Softwares pinned «»

در پست دیگری در لینکدین، در مورد مقایسه دو نرم افزار PLAXIS 2D 8.6 و ورژنهای جدید آن مطلبی منتشر نموده ایم.
دیدن این پست خالی از لطف نیست.

«أَلا بِذِكرِ اللَّهِ تَطْمَئِنُّ القُلُوبُ»
مهم نیست که چقدر اندوه تو عمیق و مشکلاتت بزرگ است
زمانی که دلت به نور خدا روشن باشد
قلبت دوباره لبخند خواهد زد :)💚

شما میتوانید نمونه کارهای طراحی خودتون را در linkedin بگذارید تا دیده شوید.

کامنت آقای Dimitrios Konstantakos و پافشاری ایشون روی نرم افزار DeepEx.
از همکاران گرامی کسی با این نرم افزار کار کرده؟

در تلاشیم تا ورکشاپ Shoring Wall را به همین دوره اضافه کنیم.
https://t.me/Geotechnical_Edu_Project/1917

Properties of ground anchors
The most important tips in the ground anchor modeling procedure in PLAXIS

Activation and pre-stressing of ground anchors:

1. The activation of ground anchors in a calculation phase as part of the staged construction settings is done by
activating both the node-to-node anchor part and the embedded beam part.
2. Usually, when ground anchors are installed, they are pre-stressed. The pre-stress force can be specified by selecting the node-to-node anchor part and checking the Adjust prestress option in the Selection explorer and specifying the right pre-stress force Fprestress.
3. Note that in all models (2D and 3D) this is a force PER ANCHOR (not per unit of width out-of-plane).
4. In the calculation phase in which the ground anchor is pre-stressed, the resulting anchor force will be exactly
equal to the pre-stress force.
5. In subsequent calculation phases, however, the anchor force is supposed to further evolve as a result of the construction process.
6. Therefore, the anchor should NOT be pre-stressed again in subsequent calculation phases, unless this is also done in reality ('post tensioning' of ground anchors).

Geometric modelling of ground anchors:

The stress state around the grouted part of a ground anchor is highly three-dimensional. This makes it difficult to model a ground anchor realistically in a 2D model. Nevertheless, an approximation is possible that enables a
realistic analysis of deformation and overall stability of soil retaining structures, both in 2D and 3D. A ground anchor can be created by a combination of a node-to-node anchor and an embedded beam, in which the embedded beam represents the grouted part of the anchor and the node-to-node anchor represents the
anchor free length. The behaviour of the embedded beam is set to 'Grout body'. The connection type is internally set to 'Free'. This is required since otherwise the embedded beam will also be directly connected to the corresponding soil element, which will lead to an unrealistic loss of axial force in the connection point. Setting the connection to 'Free' will ensure that the axial force in the node-to-node anchor is more or less equal to the axial force at the top of the embedded beam.

Ref:
PLAXIS User Manual, Reference Manual.