u/wololo137

Hi everyone,

I'm currently modeling an RC bridge deck slab in Abaqus using shell elements with rebar layers, and I have a question regarding reinforcement modeling.

The actual bridge reinforcement drawings are quite complicated, including:

• Main longitudinal reinforcement
• Transverse (distribution) reinforcement
• Stirrups
• Additional local reinforcement around supports and other details

Since the shell rebar layer approach is essentially a smeared reinforcement model, I'm wondering how people typically simplify the reinforcement layout.

My questions are:

1. Is it possible to model stirrups using shell rebar layers, or are they usually ignored when using shell elements?
2. In practice, which reinforcement is usually included in shell rebar models, and which reinforcement is commonly omitted?
3. For global structural behavior (e.g., flexural response of a bridge deck), do you generally model only the main longitudinal and transverse reinforcement, or do you also include secondary reinforcement and local detailing?
4. If you have experience validating shell models against experiments, what level of reinforcement detail was sufficient?

I'd appreciate hearing how experienced Abaqus users typically approach this problem. Thanks in advance!

Hello everyone, I am a beginner in ABAQUS and have a few questions about modeling RC slabs using shell elements with rebar layers. I am mainly confused with setting the rebar orientation angle.

1. From ABAQUS manual, I understand that a rebar orientation angle of 0° is parallel to the shell local 1-axis, but I'm not sure how to display or verify the local 1-axis. In the "Assign tab" of ABAQUS, I noticed options like Material Orientation and Rebar Reference Orientation. For both options, once I select the region of interest I see local axes directions popping up. What are the differences between both options?
2. if I want the rebars to run parallel to the shell local 1-axis (as shown in the figure below), what is the correct setup? Should I assign Rebar Reference Orientation using Axis 2 and then specify a 0° rebar orientation angle in the rebar layers option?
3. Lastly, Is there a way to visually display the rebar layers? when using the rebar layer option in shell sections, I can't figure out how to visualize the reinforcement orientation or layering. Is this possible?

I would appreciate any help. Please feel free to ask any questions if my explanations weren't clear.

My Rebar Set Up

\"Rebar Orientation\" Option

Rebar Layers option, Setting the Orientation Angle

p.s.: Are there any good tutorials or references for RC slab modeling with shell elements and rebar layers? Most tutorials I found focus on 3D solid concrete models with embedded rebars.

Any advice or recommended resources would be greatly appreciated. Thanks!

Hello everyone,

At my workplace, I can access my host computer (located elsewhere on a different network) using a direct TCP connection, which provides a fast, low-latency experience. However, when I try to access the same host computer from my home network, the connection is always relayed over TCP, which is significantly slower.

Is there a way to force or consistently use a direct TCP connection instead of a relayed one? I have already enabled the "Enable Direct IP Access" and disabled "Always use Relay" option on both the client and host in RustDesk.

Could anyone explain what might be causing this issue and if there are any ways to fix it?

Thank you!