AULÃO SOBRE POSICIONAMENTO DE PILAR E VIGAS I Projeto Estrutural de CONCRETO

Proper positioning of columns and beams is one of the first and most fundamental steps in developing a concrete structural project. A well-designed structural foundation ensures the building's stability, rationalizes material use, and ensures the project's economic viability. With this in mind, we've prepared this exclusive workshop to provide a practical and educational approach to making the best decisions during this process. 📌 TRACE THE DRAW MINICOURSE - Learn how to calculate the concrete mix step by step http://estruturasebim.com/comece-por-... ⌨️ Materials Calculator Spreadsheet for the project https://bit.ly/PlanilhaCalculodeMater... 👉 Visit our website and secure your materials https://estruturasebim.com ⭕ EQUIPMENT AND BOOK: 💻 Notebook I use to design WITHOUT FREEZING: https://amzn.to/3zuIkEH ⌨️ Calculator model I use for calculations: https://amzn.to/3oqi0oP 👉 📚 Book: Calculation and Detailing of Common Reinforced Concrete Structures: https://amzn.to/3jfyFbX Hello, How are you? Why is Correct Positioning so Important? Load Distribution: Correctly positioned pillars and beams ensure that loads are transferred efficiently to the foundations, avoiding local overloads and structural failures. Design Compatibility: The structure must comply with the architecture, installations, and other construction systems, preventing interference and rework. Cost-Effectiveness: A good design reduces the volume of concrete and steel, reduces the number of forms, and simplifies construction. Safety: Correctly defining supports ensures the overall stability of the structure and prevents pathologies such as cracks, subsidence, and collapse. Pillars: The Heart of the Structural System Basic Positioning Rules: Support at wall abutments whenever possible, integrating the structure with the enclosure. Align pillars vertically on all floors, ensuring continuity of forces. - Avoid large cross-section variations between floors. Prioritize columns near the ends to reduce bending moments in the beams. Minimize eccentricities to avoid unwanted twisting in the structures. Cross-section orientation: Larger dimension in the direction of greatest stress (e.g., the longest side of the column aligned with the axis of greatest moment). Practical examples: A 14x30 cm column, rotated to be 30 cm in the main direction of stress, can reduce bending moments by up to 30% compared to the reverse positioning. In tall buildings, vertically aligned columns avoid additional horizontal stresses resulting from eccentricities. Beams: The Network that Distributes Stress Strategies for a successful launch: Connect beams directly between columns. Avoid large cantilevers without intermediate support. Design the main beams first, prioritizing continuity of support. - Respect the structural hierarchy: main beams support secondary beams. Look for beams embedded in masonry, reducing the visual perception of the structure. Practical tips: Very long beams greater than 5 m may require increased height to control deflections. Beams with many concentrated loads (such as beams under walls) should be reinforced or subdivided. Common mistakes: Poorly positioned columns that require the creation of very robust and expensive beams. Beams misaligned with the architecture, creating conflicts with doors, windows, and ceilings. Happy studying. A big hug. Ms.C. Pedro Rodrigues