China’s
For decades, bridge engineers have wrestled with a tough trade-off: how to inspect and maintain key components without shutting down traffic. A Chengdu-based company, Intelligent Engineering Connections Incorporated (IEC), is helping resolve that dilemma with “smart joints” — advanced bridge bearings and expansion devices that calibrate under full load, sense stress in real time, and can be disassembled and recycled at the end of their service life.
These innovations are now in use across more than 30 countries and regions, from South Asia to the Middle East and North America. Building on that momentum, IEC recently signed a strategic cooperation and exclusive distribution agreement with Malaysia’s Pan Sarawak Holdings Sdn Bhd to bring its digital twin system for bridge structural health monitoring to the Malaysian market.
Health checks without stopping traffic
Bridge bearings are the critical joints that transfer loads and accommodate movement caused by traffic, temperature changes, and seismic forces. Traditionally, checking whether in-service bearings were functioning correctly required unloading and shifting the structure — a costly, time-consuming process that often disrupted traffic.
IEC set out to change that. “Traditional connectors are just the skeleton of infrastructure. We want them to become the nerves — capable of sensing and even thinking,” said Wu Dacheng, IEC’s chairman. The company’s solution allows for precise, in-place calibration of bearings under full load, removing the need to unload or displace them.
Their system, formally known as a Structural Intelligent Force Measurement/Calibration Device and Safety Monitoring System, was recognized as one of the first batch of “industrial excellence” products by the Chengdu municipal government. IEC reports holding 170 patents, including dozens of Chinese invention patents and several international PCT patents. According to Wu, the approach has saved projects millions in maintenance costs and avoided countless hours of traffic disruption.
Always-on structural insight
IEC integrates IoT sensors into bearings to provide continuous monitoring. “Our self-developed intelligent force measurement, calibration, and safety monitoring system tracks internal forces, displacement, acceleration, and other key parameters in real time,” said Zhao Weichao, an IEC engineer. “If something abnormal occurs, the system not only raises an alert but can make adaptive adjustments. It helps catch issues before the structure gets sick.”
From Chengdu to the world
The technology has been proven in challenging field conditions. On Bangladesh’s Jamuna Bridge, one of the country’s largest, IEC and local partners upgraded components in a tight workspace beneath the deck — without interrupting traffic. “The space was so narrow that conventional methods were nearly impossible,” said Li Shaofang of CCCC Second Harbor Engineering Company, a project partner. “IEC’s smart equipment enabled high-precision work with full control in that confined area, all while keeping vehicles moving. This has strong potential for broader use at home and abroad.”
IEC’s solutions have also handled the heat and movement demands on Doha’s ring road, built for a major international sporting event, and support the complex roof system at Los Angeles’ SoFi Stadium, a venue slated to host events during the 2028 Olympics. The company is planning new service hubs in Singapore and Brisbane to better serve regional clients.
IEC has become a top-tier player in China’s domestic market and reports orders totaling about 300 million yuan for the year, with a target of 30 percent annual growth in output value. “We are turning ‘Made in China’ into a label for intelligent and low-carbon solutions,” said Wu. “This isn’t just about building bridges; it’s about making them last longer, operate smarter, and reduce environmental impact.”
Digital twins and circular design
Beyond sensors and in-place calibration, IEC’s platform ties into a digital twin that mirrors a bridge’s structural state. This virtual model integrates live data to inform maintenance planning, detect anomalies early, and simulate responses to loads, temperature swings, and extreme events. By pairing predictive analytics with field-ready hardware, asset managers can prioritize interventions without shutting lanes or deploying large crews.
IEC is also designing components with disassembly and recycling in mind. Bearings and expansion devices can be removed and reused or repurposed at end of life, an approach that supports circular economy goals and reduces lifecycle costs. Combined with targeted maintenance enabled by continuous monitoring, this design philosophy aims to extend service life while minimizing downtime and waste.
What it means for global infrastructure
As traffic volumes grow and climate extremes become more frequent, infrastructure owners face mounting pressure to maintain safety without sacrificing mobility. Systems that deliver continuous structural insight, calibrate in place, and cut maintenance-related closures address that need directly. By exporting these capabilities and building local service networks, IEC and its partners are positioning advanced bridge monitoring and maintenance as standard practice, rather than a premium add-on.
From urban ring roads to landmark stadiums and trans-river crossings, the message is consistent: smarter joints and smarter data can keep bridges healthy while traffic keeps moving. And for cities and regions balancing growth with resilience, that shift could be transformative.
