Structural design is the process of creating a stable, strong, and rigid structure by methodically investigating how it will bear loads and forces, ensuring it will not fail during its intended life. It is a sub-discipline of civil engineering that involves the structural analysis, optimization of materials and geometry, and detailing of individual components like columns, beams, and slabs to ensure safety and functionality against loads such as gravity, wind, and seismic activity.
Core objectives
- Safety: To produce a structure that is safe and can withstand all applied loads and environmental forces.
- Stability: To ensure the structure remains balanced and secure under various loads through proper design of foundations, bracing, and support systems.
- Strength and Rigidity: To design members and connections that can resist the internal forces and stresses without failing.
- Economy: To develop an economical and efficient design that meets all the required specifications.
Key activities and principles
- Structural Analysis: This involves using engineering principles and mathematical models to calculate the forces and stresses on a structure.
- Load Calculation: Determining the different types of loads a structure must support, including dead loads (the structure’s weight) and live loads (people, equipment, etc.), as well as environmental forces like wind and seismic activity.
- Element Design: Calculating the required size, grade, and reinforcement for individual structural components like footings, columns, beams, and slabs to withstand the calculated internal forces.
- Element Detailing: Creating precise construction drawings and specifications for every component, including dimensions, materials, and connection details, to ensure accurate and safe fabrication.
- Compliance and Review: Checking the final design against regulations and design constraints, such as deflection limits and reinforcement requirements. If issues arise, the assumptions are revisited and the process is repeated until a correct and optimized design is achieved.
Why it is important
- Structural design is crucial for preventing costly and potentially catastrophic failures.
- It is essential for creating safe and functional infrastructure, from buildings to bridges.
- A well-engineered design ensures a structure can withstand its environment and remain intact throughout its lifespan.
STRUCTURAL AUDITING
Site History Review:
- We Collect historical data about the building, previous renovations, and
changes/modifications in occupancy with reference to approved As – Built drawings/OC
Stage Drawings. - Review any past structural modification and assessments records.
➢ Initial Site Inspection: - We Conduct a thorough visual inspection to identify visible defects such as cracks, corrosion,
deflections, and any signs of structural distress. - Document all findings with photographs and detailed notes.
➢ Documentation Review: - We Study existing construction documents, including architectural and structural drawings, to
understand the original design and any modifications made over time. - We Review previous inspection reports and maintenance records for insights into recurring
issues.
➢ Load Analysis: - Load profiling of entire building to assess the current load-bearing capacity of the structure
and compare it with the required standards. - Evaluate the impact of any changes due to occupancy or usage on the structure.
➢ Detailed Structural Assessment: - Perform non-destructive testing (NDT) methods such as ultrasonic testing, ground penetrating radar, and infrared thermography to evaluate the integrity of structural elements like beams, columns, shear wall and slabs etc.
- Conduct material testing to assess the quality and strength of concrete, steel, and other
construction materials.
➢ Structural Analysis: - Perform the structural analysis of building model in line with existing loading situation /
modification made over time and simulate various load conditions. - Identify any weaknesses or areas needing reinforcement / structural strengthening based
on the analysis.