Скачать или смотреть 🤯இந்தியாவின் உயரமான மெட்ரோ பாலம் சென்னையில்! | Technology used in Chennai Kathippara Metro flyover

நீங்களும் Social Media-ல Success ஆக, எங்களோட 'How to Become Successful in Social Media Course” வாங்க இந்த link ah கிளிக் பண்ணுங்க: https://bit.ly/4elcCLe

Follow Streetlight Social Media Handles:
Youtube:    / @streetlightscience  
Instagram:   / streetlightscience  
Facebook:   / streetlightscience  
Twitter: https://x.com/StreetLight_Sci
Whatsapp Channel:

For Brand Collaborations:
Phone: 95660 67565

This video is about:
The Kathipara Metro Flyover (part of the Chennai Metro Phase II corridor near the Kathipara Junction) is an advanced example of modern elevated metro construction, combining civil engineering precision with cutting-edge construction technologies to handle one of the busiest and most complex traffic zones in Chennai.

Here’s a detailed look at the technologies and methods used 👇

🏗️ 1. Segmental Construction Technique

The flyover is built using the precast segmental method, where concrete segments of the viaduct are cast in a controlled yard, cured, and then transported to the site. These segments are joined together span by span using epoxy and high-tension post-tensioning cables.

Advantages: Faster construction, higher quality control, minimal disruption to traffic below.

Used Equipment: Segment launching gantries, stress jacks, epoxy bonding systems.

🧱 2. Post-Tensioning Technology

High-strength steel tendons (cables) are threaded through ducts inside each segment and tensioned using hydraulic jacks. This compresses the concrete, increasing its load-bearing capacity and durability.

Type: Internal post-tensioning system (multi-strand).

Benefit: Reduces cracking, enables long spans without intermediate supports, ideal for crossing wide junctions like Kathipara.

🔩 3. Form Traveller System (for Casting In-Situ Spans)

At curved or complex junction sections, form travellers are used to cast concrete spans directly in place (in-situ). These movable frameworks allow engineers to build one segment at a time, projecting out from pier to pier, perfectly balanced by counterweights.

Use Case: Where pre-cast segment placement is difficult or alignment changes rapidly.

Benefit: Precision construction over live traffic zones.

🏗️ 4. Box Girder Design

The viaduct uses pre-stressed box girders, which are hollow, rectangular concrete beams that offer excellent strength-to-weight ratio.

Purpose: To support metro train loads efficiently while maintaining aesthetic, aerodynamic design.

Advantage: Reduced material weight, easy maintenance access inside the box section.

⚙️ 5. Pier and Foundation Technology

Given the high traffic and limited working space at Kathipara Junction, engineers used bored pile foundations with reinforced concrete piers designed to withstand seismic and dynamic train loads.

Technology: Rotary piling rigs with bentonite slurry for soil stabilization.

Special Feature: Pile caps constructed at night to minimize traffic disruption.

🚧 6. Launching Gantry (LG) Method

A massive launching girder system is used to lift and place precast segments over the piers. The gantry moves forward span by span, joining and tensioning the segments in place.

Control: Fully automated hydraulic synchronization and laser alignment systems.

Safety: Equipped with load sensors and computer monitoring.

🔐 7. Safety & Monitoring Systems

During construction, the project integrates real-time structural health monitoring using sensors and laser-based alignment checking.

Tools: Total stations, digital theodolites, and 3D modeling for geometric control.

Post-construction: Sensors monitor stress and deflection in the girder and track system.

🛰️ 8. BIM (Building Information Modeling)

The entire design and execution process uses BIM technology to coordinate between structural, electrical, and architectural components.

Advantage: Detects design clashes early, improves accuracy, and streamlines project timelines.


✅ Subscribe To Our Other YouTube Channels:
Theneer Idaivelai:    / @theneeridaivelai  
Naattu Nadappu:    / @naattunadappu  
Skiddy:    / @skiddytamil  
Lets Dance:    / @letsdance3608  

Welcome to Streetlight! With a community of 2.1 million subscribers, our channel dives deep into all branches of science—from biology and chemistry to astrophysics and engineering. We explore fascinating topics, bust myths, and uncover the science behind everyday phenomena. Whether you're curious about the mysteries of space, the mechanics of machines, or the wonders of the natural world, Streetlight is here to light the way with engaging, informative, and thought-provoking content. Join us in exploring the universe and beyond, one video at a time!