Cengrs Geotechnica Pvt. Ltd.’s Post

▪️Eigen-vector analysis Determines the undamped free-vibration mode shapes and frequencies of the system. These natural modes provide an excellent insight into the behavior of the structure. ▪️Ritz-vector analysis Seeks to find modes that are excited by a particular loading. Ritz vectors can provide a better basis than do Eigenvectors when used for response-spectrum or time-history analyses that are based on modal superposition. #civilengineering #civilengineer #civilconstruction #civilengineeringworld #civilengineers #civil #structuralengineering #structuraldesign #structuralanalysis #structuralengineers #structuralengineer #structure #iitbombay #iitmadras #iitkanpur #iitroorkee #iitdelhi #iit #nit #engineering

💡 Exploring Life Cycle Cost Savings with High-Strength Concrete in Coastal Environments 🌊 Discover the insightful research by ASHOK CHAVAN, V. K. Rattan, and Y. S. Patil in their study on "Impact of Supplementary Cementitious Materials on Life Cycle Cost of High-Strength Concrete in Coastal Environments". 🏗️💰 📚 Study Highlights: - Focus on Life Cycle Cost (LCC) analysis for reinforced concrete structures, considering expenses beyond initial building costs throughout a structure's service life. 📊 - Utilized Life-365, a specialized program for predicting the life cycle cost of concrete exposed to chlorides, to compare two concrete mixes, TM1 and TM2, in Mumbai. 🌐 - Analyzed M70-grade concrete mixes with varying compositions, including Fly Ash, GGBS, and Micro Silica as partial cement replacements. ⚙️ 🔬 Key Findings: - Quaternary blended M70 grade concrete with supplementary cementitious materials (SCMs) enhances durability and provides economic benefits by reducing overall life cycle costs. 📈 - The study’s results highlight the importance of using SCMs to promote durable, cost-effective, and sustainable concrete structures, especially in coastal environments. 🌍 📑 For a comprehensive understanding of this important research, read the full study: https://lnkd.in/eT2tSBng 📑 🚀 Stay updated with cutting-edge research! Follow our LinkedIn page for more insights. 🔗 GNA University GNA University Shivajirao S Jondhale College of Engineering Vishnu Nagar Dombivli (West) Dist Thane #HighStrengthConcrete #LifeCycleCostAnalysis #SupplementaryCementitiousMaterials #SustainableConstruction #EngineeringResearch #RESMJournal 🌊🏗️📊

Choose the correct bending moment diagram…!!! #structuralengineers #civilengineers #structuralengineer #civilengineering #civilengineer #civilconstruction #civilengineeringworld #civilengineers #civil #structuralengineering #structuraldesign #structuralanalysis #structuralengineers #structuralengineer #structure #iitbombay #iitmadras #iitkanpur #iitroorkee #iitdelhi #iit #nit #engineering

Leading Exporter of Civil Engineering Laboratory Equipment #export #civilengineering #structuralengineering #NDTtesting #geotechnicalengieering #highway #laboratoryequipment #laboratoryapparatus #testingequipment #geotechnical

Automatic Marshall Compactor for Moulds Dia. 4'' AND 6'' mould Procedure to determine Marshall stability of bituminous mixture i) Heat the weighted aggregates and the bitumen separately up to 170°C and 163°C respectively. ii) Mix them thoroughly, transfer the mixed material to the compaction mould arranged on the compaction pedestal. iii) Give 75 blows (150°C)on the top side of the specimen mix with a standard hammer (45 cm, 4.86kg). Reverse the specimen and give 75 blows again. Take the mould with the specimen and cool it for a few minutes. iv) Remove the specimen from the mould by gently pushing. Mark the specimen and cure it at room temperature, overnight. v) A series of specimens are prepared by a similar method with varying quantities of bitumen content, with an increment of 0.5% (3 specimens) or 1 bitumen content. vi) Before testing the mould, keep the mould in the water bath having a temperature of 60°C for half an hour vii) Check the stability of the mould on the Marshall stability apparatus. Birla Institute of Technology and Science, Pilani Department of Civil Engineering, Birla Institute of Technology and Science, Pilani, Pilani Campus #highway #marshallmix Highway Design Highway

Dear Structural Design Engineers, What is the one thing that gives us the most satisfaction? It is when our Designed Structure become a tangible reality and stands Tall and Proud. Right? BUT!!! Do you know what levels up this sense of satisfaction multifold? It is when you could also present and publish about that project in front of your peers. The road to innovation in construction isn’t easy (understatement of the year!). The risk-to-benefit ratio in our industry is so skewed to unfavorable side that it is usually preferred to follow the norms. That is why a structural engineer could rarely experience the 4th stage in their Project (Refer Image). If you’re reading this far, I owe you a quick overview of this boundary-pushing project. So, here’s the scoop: Currently rising in Nagpur, Maharashtra, is a 2.26 km flyover – but not your everyday structure! This one is built using Ultra-High Performance Fiber Reinforced Concrete (UHPFRC) with jaw-dropping numbers like 155 MPa in compressive strength and a tensile strength of 8 MPa. For India, this is huge (we don’t even have our own design code for UHPFRC yet!). So, yes, we’re truly venturing into new territory here. Stay tuned for PART 2 where I'll dive deeper into UHPFRC. Got questions about the Project, UHPFRC, or even my stress levels while designing it? Drop them in the comments! Special shoutout to my incredible co-authors for their invaluable support and contributions: Akhilesh Lahoti (Director, Force Structural Engineers Pvt. Ltd.) Sudeep Joshi (GM Design, LONGSPAN STRUCTURES PVT LTD (LSSPL UHPFRC) Ramakrishna raju N (Executive VP, NCC Limited) #StructuralEngineering #UHPFRC #Innovation #BridgeDesign #PushingBoundaries

Perungalathur is a suburb located in the southern part of Chennai, #India known for its proximity to key industrial and IT hubs in the city. Shriram Properties Ltd wanted to develop an #ITpark in Phase II of the #SEZ in Perungalathur. A topographic study revealed a requirement of cutting of the ground on the north-east side of the proposed site. Additionally, the site faced significant geotechnical challenges due to its hilly terrain and heavy monsoon rains. These conditions necessitated an effective slope stabilization solution to counter slope instability and ensure the safety of the infrastructure. Maccaferri provided a composite solution that combined soil nailing with a Gabion fascia at the bottom part of the slope and a Terramesh reinforced soil wall system with Paralink monoaxial geogrid as the primary reinforcement at the top of the slope. The Terramesh System (TMS) is a modular system with a Gabion fascia and an integrated tail as secondary reinforcement. This flexible solution stabilized the slope and promoted erosion protection. A non-woven geotextile was installed as a filter media behind the TMS and Gabions, ensuring effective drainage and enhanced stability. #Urbandevelopment #InfrastructureDevelopment #SlopeStability #SoilStabilization #erosioncontrol #Rswall #retainingwall #reinforcedsoilwall #geosynthetic #geogrid #nonwoventextile #Gabion #MSEW #SoilNailing #CivilEngineering #SustainableSolutions #Perungalathur #Chennai #GeotechnicalEngineering #Maccaferri #Engineeringabettersolution

Understanding Soil Bearing Capacity and Design Bearing Capacity for Safe Foundations in India In geotechnical engineering, ensuring the stability of structures relies heavily on understanding the soil's capacity to bear loads. Here in India, we refer to specific standards to determine safe foundation design. * Soil Bearing Capacity: This is the maximum load per unit area the soil can support without failure. It's influenced by factors like: * Soil type and shear strength * Density * Depth of foundation * Presence of groundwater * Design Bearing Capacity: This is a conservative value derived by dividing the soil bearing capacity by a safety factor. It accounts for uncertainties and ensures safe structural loads. IS 1904 (1986) and IS 6403 (1981) are crucial Indian Standards for foundation design and soil bearing capacity determination. These standards provide formulas to calculate the ultimate bearing capacity based on soil properties and geometry. By following these standards, we can ensure safe and economical foundation design for buildings and infrastructure projects in India. #soils #foundations #geotechnicalengineering #engineeringstandards #india

Glass Fiber Reinforced Polymer (GFRP) rebar is gaining recognition as a promising alternative to traditional steel reinforcement in the Indian construction industry. With its unique properties, GFRP rebar offers significant advantages: - Corrosion Resistance: GFRP does not rust or corrode, making it ideal for coastal areas and structures exposed to harsh environmental conditions. - Lightweight: Significantly lighter than steel, GFRP reduces overall structure weight, lowering transportation costs and expediting construction processes. - High Strength-to-Weight Ratio: Despite its lightness, GFRP offers exceptional strength, allowing for robust structures without increased foundation loads. - Non-Conductive and Non-Magnetic: Ideal for sensitive environments, GFRP does not conduct electricity or interfere magnetically. - Longevity and Durability: Structures with GFRP rebar have extended lifespans, reducing maintenance costs and enhancing long-term value. - Eco-Friendly: With a smaller carbon footprint than steel, GFRP is environmentally friendly, requiring less energy and raw materials. However, there are challenges to consider: - Higher Initial Cost: GFRP rebar comes with a higher upfront cost, potentially deterring projects with limited budgets despite long-term savings. - Limited Familiarity: The newness of GFRP in India may lead to resistance in adoption due to unfamiliarity among construction professionals. - Brittleness: Unlike steel, GFRP is brittle and lacks ductility, impacting flexibility in critical applications. Understanding the pros and cons of GFRP rebar is crucial for informed decision-making in construction projects. Greenko School of Sustainability, IIT Hyderabad Get FiBAR | GFRP rebar TUF-BAR GFRP Fiberglass Rebar Sireg Geotech Pultron Composites Ltd Pultron Composites Fibertech composite Private limited FIBERTECH COMPOSITE GMR Group Hindustan Construction Company AECom India AECOM Ramboll Lloyd's Register Arcadis Construction Industry Development Council Indian Institute of Technology, Bombay Indian Institute of Technology, Madras Indian Institute of Technology, Delhi National Institute of Technology, DELHI Indian Society for Technical Education Indian Concrete Institute Pune Centre TIME Statista YouTube LinkedIn Business Insider The Wall Street Journal The New York Times The Times Of India Unilever #ConstructionIndustry #GFRP #BuildingMaterials #India #JaiHo

Failure patterns in case of Concrete cubes of Grade M25 ( Partial replacement of coarse aggregate and fine aggregate with Steel fibre and polypropylene fibre). #rbgihoshiarpur #civilengineering #btech #project #research #construction