ROOHOLLAH RAJABI’s Post

Structural Design detailing of a building with raft foundation by me. The draughting is actually awesome or what do you think about my draughting? #draughtman #civilengr #AutoCAD #StaadPRO #structuralengineer #Engineering

After many years as a structural engineer, I realized that fundamental knowledge is essential to simplify complex calculations based on logical foundations. One must make assumptions within permissible limits (something true engineers "feel" in the data to provide reasonable boundary conditions for the problem at hand) and perform calculations using simple formulas. Naturally, the output must be "felt" once again. A basic example is as follows: for a bending section with (1) an economical design, never use double reinforcement to resist compression, (2) only use single reinforcement for tension, (3) concrete should resist compression within allowable limits, and finally, (4) the bending section remains flat after deformation. With these four assumptions, arguing that the calculated reinforcement for bending (As) comes from the critical moment of the section (Mu) divided by the effective height after placing the reinforcement (d) will yield an equal tension/compression couple. To calculate the tension reinforcement, divide the tensile force couple (Ftu) by the design strength of the reinforcement (fyk/1.15-gamma_s), converting units to get the result in cm² for the reinforcement area. Voila, it's quite simple, isn't it? Similarly, for shear force, assuming the inclination angle of the compression strut is 45 degrees, i.e., the cotangent of the angle is 1.0, the calculation formula for vertical shear reinforcement (Asw) parallel to the bending section at the location of maximum shear force per unit step (s) is simply the value of the critical shear force (Vu) divided by the effective height after placing the reinforcement (d), further divided by the design strength of the shear reinforcement (fywd). Cheers, the result is quite simple. I would like to share this with young engineers who see calculations as too complex to be done by hand, so they gradually become familiar with this result to control the output of reinforced concrete design models or software. Source: A cement and concrete industry publication. Explore spreadsheets that assist engineers in design of structures according to Eurocode at ecapplied.wordpress.com #ecapplied.wordpress.com

Did you know...Tekla Structural Designer can also be used with concrete and timber structures? While the design and analysis software may be most well-known amongst the construction industry for its steel capabilities, it is just as valuable for concrete design: ✅ Foundation Design ✅ Staged Construction Analysis ✅ Software integration ✅ Multi-material #engineering #software #concrete #TeklaStructuralDesigner

🎓 Semester 1 Highlights at TAFE Queensland – Road Design and Structural CAD Work 🎓 In my first semester at TAFE Queensland, I jumped into CAD design for civil and structural engineering, getting hands-on experience in road layout and structural detailing. Here’s a quick snapshot of what I worked on: ▪ ROAD SETOUT PLAN DRAWING What I tackled: -Divided the road layout based on the plan, drawing cross-section control lines and adding kerbs and channels. -Learned how to draw the longitudinal section control line to make sure everything aligned with precision. How I approached it: Used Brisbane Standard Drawings (BSD - 2001) as my guide, overlaying survey data with the .dwg file to see how the new design interacted with the existing site. ▪FOOTING AND COLUMN DRAWING What I tackled: -Created detailed drafts for footing layouts, footing pads, columns, roof plans, portal frames, wall frames, and I-beam connections. -Developed clear sectional views of columns, complete with dimensions, column types, and other key details. ▪How I approached it: -Selected the right I-beam types and sizes for each section, adding bolts and stiffener plates for structural accuracy. -Marked session points to label column and I-beam details according to industry standards, keeping everything organized and easy to follow. It’s been a great experience so far, building a strong foundation in CAD and civil design. Excited to keep learning! #civilEngineering #CAD #AutoCAD #TAFEQueensland #RoadDesign #StructuralDetailing #Engineering #Civildrafter #drafter

Enhance your skills in structural steel Modeling and detailing with our #teklastructures course #tekla #teklastructures #revit #autocad #bim #construction #autodesk #solidworks #steel #civilengineering #structures #sketchup #steelstructures #architecture #structure #engineering

Enhance your skills in structural steel Modeling and detailing with our #teklastructures course #tekla #teklastructures #revit #autocad #bim #construction #autodesk #solidworks #steel #civilengineering #structures #sketchup #steelstructures #architecture #structure #engineering

Modeling, Schedules and Concrete Shop Drawing Using Revit. #Revit #Structure_BIM_Engineer #BIM #Bulding_Information_Modeling

What is ProStructures? ProStructures is a comprehensive software for steel detailing and reinforced concrete design that delivers parametric structural components to increase your productivity and profitability. It allows you to create and automatically update 3D models of structural steel, metal work, and reinforced concrete structures. ProStructures includes ProSteel and ProConcrete. Model concrete structures Model parametric reinforced concrete objects of any shape, with any combination of reinforcing Easily create concrete structures for buildings, plants, civil projects, and bridges Reduce documentation time and eliminate errors Create 3D models, placement drawings, fabrication details, bar bending schedules, concrete quantity, and material reports Automatically perform updates to reflect model changes Produce high-quality steel detailing and fabrication designs Develop models and documentation for steel structures efficiently Confidently deliver an accurate 3D model for steel structures and extract engineering, fabrication, and erection drawings Leverage automatic updates whenever the 3D model is changed Produce drawings for every steel shape, connection, and plate-work from the 3D model Generate and update in-drawing, external reports, and bills of material #prostructures #steeldesign #structuralengineers #structuraldetailing #bentleysystems #3dmodel #engineering #infrastructure

I’m excited to share that I have successfully completed a live interactive webinar on Structural Detailing of Reinforced Concrete Structures with Applications of STAAD Advanced Concrete Design (RCDC). This training deepened my understanding of reinforced concrete design, structural detailing, structural analysis, and best practices in structural engineering, covering key topics such as: ✅ Structural detailing of beams, columns, slabs, walls, and footings ✅ Material properties & specifications, design requirements & codes, and structural loads ✅ Evaluating common construction misconceptions of structural members in actual practice ✅ Utilizing STAAD Advanced Concrete Design (RCDC) for efficient design and detailing ✅ Utilizing STAAD Advanced Concrete Design (RCDC) for structural analysis As a Professional Engineer in the construction industry, this training further enhances my ability to collaborate with structural teams, ensure code compliance, and contribute to high-quality project execution. Continuous learning is key to delivering efficient, safe, and well-detailed structures. Looking forward to applying these insights in upcoming projects! 💡🏗️ #StructuralEngineering #Construction #ReinforcedConcrete #STAAD #ProfessionalDevelopment #EngineeringExcellence