[Let's Run Again Construction Korea] Smart Construction Platform Technology Concentrated... Sejong Landmark 'Geumgang Pedestrian Bridge'

460m Diameter Arch Bridge with Steel Tube Truss
Upper Level Pedestrian & Lower Level Bicycle Dual-Layer Structure
Total Length 1.651km 'Korea's First Circular Bridge'
Heavyweight Approx. 9700t Transport & Installation High-Risk Operation

Digital Site Management Platform 'Elloseum'
BIM+QR Code Steel Bridge Component Inbound/Outbound Management
Frequent Site Updates Using Drones and More

A bird's-eye view of the Geumgang Pedestrian Bridge, with a total length of 1.651 km, being constructed by Lotte Construction in the Boram-dong, Yeongi-myeon, and Sejong-ri areas of Sejong City. This is the first circular and multifunctional pedestrian bridge in Korea, scheduled for completion in July.

[Asia Economy Reporter Donghyun Choi] A landmark is like a symbol of a city. When you think of San Francisco in the United States, the Golden Gate Bridge comes to mind. So, what is the landmark of Sejong City, which is gaining attention due to the capital relocation proposal? At best, government office buildings or apartment complexes come to mind, but there is no architectural structure distinctly imprinted on the minds of the general public. However, this perception seems about to change soon. The 'Geumgang Pedestrian Bridge,' Korea's first circular and multifunctional pedestrian bridge, currently under construction by Lotte Construction, is scheduled for completion in July. Once completed, this structure is expected to become not only a landmark of Sejong City but also a representative landmark of South Korea.

Korea's First Circular Bridge, Geumgang Pedestrian Bridge, to be Completed This Year

The Geumgang Pedestrian Bridge, being built around Boram-dong, Yeongi-myeon, and Sejong-ri in Sejong City, is a bridge with a total length of 1.651 km connecting the northern Central Park with the southern waterfront park and Sejong City Hall. The total project cost is approximately 105.3 billion KRW, and Lotte Construction began construction in July 2018. As of last month, the construction progress rate has exceeded 80%.

The Geumgang Pedestrian Bridge features a rare double-deck structure in Korea, with the upper deck serving as a pedestrian walkway and the lower deck as a bicycle path. Various facilities such as laser shows, media facades, ICT experiences, and falling fountains are installed throughout the bridge. On the City Hall side, a plaza and stands are arranged to provide a resting area for citizens, and on the Central Park side, a 30-meter-high circular observatory is erected to offer a panoramic view of Sejong City.

The main bridge, which is 1.412 km long, is constructed as a circular steel pipe truss bridge with a diameter of 460 meters. The starting and ending connecting bridges are designed as a steel plate truss bridge and a tied arch bridge, respectively, each with a length of 119.5 meters, making the entire bridge a steel bridge. The pure weight of the steel bridge is about 9,700 tons, requiring high-risk tasks for manufacturing, transportation, and installation, making the construction process challenging.

Smart Construction Site Management Platform ‘Ellosseum’

A Lotte Construction official is scanning the QR code of materials brought to the site using the 'Elloseum' application. Elloseum is a smart construction site management platform developed in-house by Lotte Construction and is applied to various construction sites such as the Geumgang Pedestrian Bridge.

Amid various adverse conditions, the smart construction site management platform ‘Ellosseum,’ developed in-house by Lotte Construction, has shone. Ellosseum operates based on the Internet of Things (IoT) and is divided into △ real-time resource management system △ real-time safety and quality management system △ smart progress management system △ digital document management system, all of which are currently applied throughout the Geumgang Pedestrian Bridge site.

Lotte Construction applied a Real-Time Location System (RTLS) to enable monitoring of on-site personnel and equipment. Simply taking and registering photos of resources located on-site automatically reflects their location values on the platform, enhancing resource management efficiency.

When on-site personnel send an emergency signal, the system identifies the location and enables immediate response, strengthening safety and quality management. Using 360-degree cameras for site recording allows multi-angle verification of the site status, improving construction quality management. Additionally, the platform allows immediate registration and sharing of various issues occurring on the construction site to ensure prompt action. It also features a function to generate reports on issue occurrences and response histories.

Lotte Construction links Building Information Modeling (BIM) with QR codes to automatically manage the inbound and outbound history of steel bridge components and visually track progress. They also periodically use drones to capture photographic information of the site and convert it into 3D modeling. The generated data is uploaded to a cloud server-based platform, allowing real-time monitoring of site status and changes and serving as an auxiliary tool for decision-making in site operations.

Lotte Construction is also striving to create a paper-free site culture. Various types of documents used on-site, such as drawings, specifications, and technical review documents, are digitized and made accessible via mobile devices anywhere on-site. A representative from Lotte Construction’s Technical Research Institute stated, "Ellosseum’s digital construction management efficiency was recognized, and last year we won the grand prize in the construction management improvement category at the Construction VE Competition hosted by the Korea Land and Housing Corporation (LH)."

Lotte Castle River Park Signature, a Concentration of the Latest IoT Technologies

A bird's-eye view of 'Lotte Castle River Park Signature' being developed in the area of 236 Jayang-dong, Gwangjin-gu, Seoul. Lotte Construction applied an advanced home network system utilizing the Internet of Things (IoT) in this complex.

Lotte Construction’s smart construction technology is not limited to on-site personnel management. They have also developed various IoT-related technologies in the housing construction sector, where they have strengths, to advance housing technology.

A representative complex is ‘Lotte Castle River Park Signature’ in Jayang-dong, Gwangjin-gu, Seoul, which was successfully sold last August. Lotte Construction actively introduced a home network system in this complex, with the representative feature being the ‘Smart Living Information Device.’ This system allows control of all lights, gas valve shutoff, elevator calls, energy usage inquiries, and weather information within each unit through a single wall pad switch installed in each household.

The ‘Castle Smart Home’ IoT system was also established. Through this, various electrical and heating devices inside the home can be controlled via a smartphone application from outside. Additionally, residents can check via smartphone whether there is available space in each parking zone and the location of parked vehicles. They can also verify whether a delivery has arrived. A Lotte Construction official emphasized, "Since this is the first Lotte Castle complex supplied in Gwangjin-gu, we put a lot of effort into the product and specialized design. Especially in the era of the Fourth Industrial Revolution and post-COVID-19, we strived to integrate various smart technologies desired by the demand base."

This content was produced with the assistance of AI translation services.