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Reinforced concrete

Faculty Positions Civil Engineering at UACh - Valdivia, Chile (open until 28.02.2023)

Submitted by Uwe.Muehlich on

The Institute of Civil Engineering Construction of the Faculty of Engineering Science at Universidad
Austral de Chile (UACh, Chile) invites applications for two faculty positions. The areas of specific interest
are:

  • Soil Mechanics, Geotechnics and Foundation Engineering (E-138 2022)
  • Reinforced Concrete Design or Design of Steel / Timber Structures (E-1372022)

Applicants must have a PhD (doctorate degree). Post open until February 28, 2023.

See attached job post.

Low cost condition assessment method for existing RC bridges

Submitted by Flavio Stochino on

Aging infrastructures represent a current engineering challenge. Huge budgets are necessary to keep their functionality and the lack of a proper and timely maintenance entails an increasing deterioration and therefore higher repair costs. Therefore, assessing the reliability of infrastructures becomes mandatory, with particular attention to the ones still in service even when their life limit has exceeded.

This paper aims to propose a new, fast and low cost method of condition rating for reinforced concrete bridges. This is based on visual inspection and non-destructive testing.

Recycled Concrete Slabs: excellent punching performance!

Submitted by Flavio Stochino on

This paper reports on the experimental assessment of the punching shear behaviour of reinforced recycled concrete slabs characterized by fine natural aggregates and coarse recycled aggregates. In particular, the latter were obtained only from demolished concrete. The experimental campaign has been carried out on 12 specimens. Moreover, three reinforced natural aggregate concrete slabs have been casted and tested as benchmarks. Four replacement percentages (30, 50, 80 and 100%) of coarse recycled aggregates in place of coarse natural aggregates have been considered.

RC beams under blast load: Reliability and sensitivity analysis

Submitted by Flavio Stochino on

The effects of blast loading on structures can be very dangerous: damages and failures are expected with serious threats to structural safety and human life. Materials stresses and strains are often pushed to the limit and the modelling of these phenomena can be very complex. In order to design blast-resistant structures it is very important to determine what are the key parameters of this problem.

 

What is the importance of strain rate on structural response under blast load?

Submitted by Flavio Stochino on

What is the importance of strain rate on structural response under blast load?

This and other issues are discussed in the recent paper from Stochino F. and Carta G.:

“SDOF models for reinforced concrete beams under impulsive loads accounting for strain rate effects”, DOI: 10.1016/j.nucengdes.2014.05.022, Nuclear Engineering and Design 276, (2014), 74-86.

http://www.sciencedirect.com/science/article/pii/S002954931400301X

Reinforced Concrete: Reinforcing Section or Volume Ratio?

Submitted by hysteresis on

Hi,

 I want to model a simple bending RC beam using "smear" approach in ANSYS. Can anybody tell me which approach is right or both are the same?

 

1. I create two real constant sets for SOLID65 element. First one doesnt have volume ratio for the reinforcement, the second one does. Then, I create two seperate volumes adjacent to eachother and one under the other. I glue them and before meshing I choose the first real constant set for the upper one and the second set for the other as mesh attributes.

 

Reinforced Concrete in ANSYS

Submitted by Jeffrey W. Kemper on

I am conducting a senior design project in ANSYS.  I am modeling a folded reinforced concrete plate and have never used ansys before.  Does anyone have any tutorials that involve non-linear analysis?  I am trying to get a force vs. deflection curve and I am having troubles.

 Thanks