TRANSFER SHEAR WALL GOING HC 🔥⚠️🏗️
Steel plate reinforced concrete composite shear wall in a new-rise building in downtown Zagreb
Structural Engineering: Studio Arhing
This appears to be very unique and simple solution for a big problem in heavy duty shear walls. Congrats...
Alternatives are very large X (cross) steel beams and patented systems with considerable expenses and logistics challenges, all explained in picture below.
💪 Who Said Concrete Has Little Tensile Strength? Think Again! 🚀
Luka Zevnik and his team have developed a revolutionary cementitious material, combining Ultra-High Performance Concrete (UHPC), carbon fiber, and carbon reinforcement mesh to deliver results that are nothing short of amazing!
🔹 The test:
A 1 m long strip, only 16 mm thick and 10 cm wide (section of just 16 cm²), withstood a dynamic load of 150 kg without any cracks.
This groundbreaking combination of materials showcases how concrete can achieve incredible tensile strength, opening doors to new possibilities in structural engineering.
🔹 Why it matters:
This innovation could lead to lighter, thinner, and stronger concrete structures—paving the way for previously unimaginable applications in architecture and infrastructure. Imagine bridges, facades, and even high-rise elements that are more efficient and sustainable.
What do you think? Could this technology redefine how we design future structures? And yes, safety in testing is always a critical consideration!
📽️: Unknown
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🏗️ Building smarter, stronger, and more innovative solutions! 🌍
Nestled in the breathtaking landscapes of China, the 168-meter-long Sky Ladder, made entirely of steel rope, stands as a testament to human ingenuity and daring innovation in structural engineering. Suspended at a dizzying height, this architectural feat connects two cliffs in a region renowned for its picturesque beauty and has become a beacon for thrill-seekers and engineering enthusiasts alike.
The ladder, a lightweight yet robust structure, employs high-strength steel ropes capable of withstanding extreme loads while minimizing material usage. Its design is rooted in meticulous calculations to ensure safety and stability despite the dynamic environmental forces such as wind and seismic activity. Engineers achieved a balance between functional resilience and aesthetic integration, allowing the structure to harmonize with the surrounding natural splendor.
🚀 Stiffness vs Strength: What’s the Difference in Structural Engineering?
As structural engineers, we often hear the terms stiffness and strength used interchangeably. But did you know they describe entirely different properties of materials and structures?
Let’s break it down:
1. Stiffness
Definition: Stiffness refers to a material's or structure's ability to resist deformation under an applied load.
Quantified by: The stiffness constant (k), defined as the ratio of force (F) to displacement (δ):
k = F / δ
Units: Newton per meter (N/m).
Focus: How much a structure bends, stretches, or compresses under a load.
Key Property: A stiffer material deforms less under the same load.
Example: Steel is stiffer than wood because it resists deformation more effectively under the same force.
2. Strength
Definition: Strength refers to a material's or structure's ability to resist failure (fracture or yielding) under an applied load.
Quantified by: The ultimate strength or yield strength of a material, measured as stress (σ):
σ = F / A
where A is the cross-sectional area.
Units: Newton per square meter (N/m²) or Pascals (Pa).
Focus: The maximum load a material can withstand without breaking or permanently deforming.
Key Property: A stronger material can bear higher forces before failure.
Example: Concrete is strong in compression but weak in tension.
Key Differences:
Stiffness is about resistance to deformation, while strength is about resistance to failure.
Stiffness is an elastic property, while strength determines the ultimate capacity of a material.
Example: Rubber has low stiffness but high strength, while glass has high stiffness but low strength.
Why It Matters
In engineering, balancing stiffness and strength is essential to ensure a structure is both safe and functional. Whether you're designing a skyscraper, a bridge, or a simple beam, understanding these concepts is critical to making informed decisions.
What’s your take on this?
Have you encountered challenges in balancing stiffness and strength in your projects? Share your thoughts or examples in the comments below! Let’s learn from each other. 👇
#StructuralEngineering#CivilEngineering#EngineeringDesign#StiffnessVsStrength#MaterialScience#Construction#EngineeringInsights
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Our paper "Finite element analysis of noncontact hooked bar lap splices in precast concrete connections", written in collaboration with Dr. Zachary Coleman and my colleagues Eric Jacques, PhD, P.Eng. and Carin Roberts-Wollmann, has just been published in Engineering Structures. The article can be accessed for free for the next 50 days, using the following link.
https://lnkd.in/dR84YAJM
Structural Design aims to ensure the stability, safety and durability of the structures by analysing loads, engineering standards and setting back to its limit to get optimistic results.
The Art and Science of Bridge Engineering 🙂
Bridge engineering is a fascinating and vital field that combines art, science, and technology to design structures that span physical obstacles without closing the way underneath. Whether crossing rivers, valleys, or roads, bridges have been fundamental to human development, enabling commerce, travel, and communication.
In contemporary bridge engineering, the focus is on optimizing materials, design, and construction methods to create structures that are not only functional and durable but also aesthetically pleasing and environmentally sustainable.
EMS (Elastomeric Modular Sealing) expansion joints are advanced systems used in bridges to accommodate movements caused by thermal expansion, contraction, traffic loads, and other dynamic forces. These joints are designed to provide a seamless and durable solution for bridge expansion needs, ensuring longevity and minimal maintenance.
In the ever-evolving landscape of construction and engineering, retrofitting existing columns is a crucial practice to ensure the longevity and safety of our structures.
Why Retrofit? Retrofitting involves upgrading or modifying existing columns to enhance their performance, safety, and compliance with current building codes.
This process is essential for:
*Improving Structural Strength: Reinforcing columns to withstand greater loads and stresses.
*Enhancing Seismic Resilience: Making buildings more resistant to earthquakes and other natural disasters.
*Extending Lifespan: Prolonging the life of older structures by addressing wear and tear.
Common Methods of retrofitting:
-Concrete Jacketing: Adding a layer of concrete around the existing column to increase its strength and durability.
- Bracing: Using steel elements to provide additional support and stability.
-Fiber Reinforced Polymer (FRP) Wrapping: Applying high-strength fibers to improve load-bearing capacity and flexibility.
Benefits of retrofitting :
Safety: Ensures the safety of occupants by preventing structural failures.
Cost-Effective: More economical than complete reconstruction.
Sustainability: Reduces the environmental impact by extending the use of existing materials.
in structural design, it is important for columns to be stiff without joints, except if they are designed to be foundation columns. it is permissible to have an energy dissipation system because the shear forces at foundations are very high. Thus, an energy dissipation system is required so that shear forces will not cause deformation.
Software developing for value-engineering / design optimization. Daily using UBC/IBC and Eurocode standards for design and construction processes.
3moThis appears to be very unique and simple solution for a big problem in heavy duty shear walls. Congrats... Alternatives are very large X (cross) steel beams and patented systems with considerable expenses and logistics challenges, all explained in picture below.