We're Different
General Infomation
The Corrugated Steel Structure (CSS) produced a constant intensity corrugation profile at the factory. The the moment of inertia (Pitch: 150 mm, Depth 50 mm) was 92 times higher than the steel before pressing forming (Pitch: 381 mm, Depth 140 mm ) is 842 times, and EXSCor (Pitch: 500mm, Depth 237mm) is increased by 2,466 times. The corrugated steel sheet is machined to have the same curvature as the drawings and can be assembled into a bolt hole. For durability, Applies hot dipping zinc galvanizing (900g / m2, 1100g / m2) and POSMAC material. On site assembly is completed by connecting with high tension bolts. It is a structure that is completed by waterproofing the overlapping part of the periphery of the bolt, the corrugated steel plate and the corrugated steel plate, and completing the backfill materials and compaction required for the structural calculation and specifications.
Solution Improvement
The most important factors to ensure stability in the design of corrugated steel plates are bolt seam strength, bending tests, and box-shaped hunch tests. (KDS 14 31 10: 2017: Ministry of Land Transportation,Korea) by applying verification values through various experiments ( fy: 275MPa, fy: 315MPa, fy: 450MPa) ASTM A796M, AASHTO M167, and Korea Design Criteria meet the requirements of KCS 11 40 10: 2016 (Ministry of Land Transportation, Korea), Defense and Military Facilities Standards (DMFC 4-10-70: 2009: Ministry of National Defense, Korea) , Also, we are satisfied with AS/NZS 2041.1: 2011.
Bolt Seam Strength
Bending Moment
Hunch_Bending Moment
In addition, the production and commercialization of EXSCor (Pitch: 500mm, Depth 237mm), which is produced only by two companies in the world, We have increased material usage by 9%, securing the stiffness of the moment of inertia about 3 times the moment of inertia, and have the production capacity and engineering ability of the corrugated steel structure which is more stable.
Hunch_Bending Moment Lab. Motion Picture
3 Times Increased
Solution Engineering Service
We provide one-stop service through the OCT (Optimization Comparison Table) Program. The OCT Program is a smartphone (Android Version) and Web-based program. All engineers of our company select 395,872 Library Database in real time to select the optimum section in real time. It reflects the on-site conditions through the choice of backfill material and backfill compaction ratio ( Group Classfication of Backfill materials by AASHTO, Compaction Ratio 95%, 90%, 85%). The thickness of the corrugated steel structure (price comparison is possible by calculating the weight per M) and the stability of the structure (safety factor according to each country's standards) can be immediately provided. In addition, by providing the bearing capacity values for the concrete foundation, it provides optimized engineering that ensures the stability of the corrugated steel structure to the overall construction cost, not just the construction cost comparison of the corrugated steel sheet when establishing the structure plan. After planning the optimal structure through OCT program, we provide all engineering services related to corrugated steel structure through internal program which automatically calculates structural quantity of materials, design drawing, and calculation sheet (optional FEA report)
Optimizing Comparison Report
(Section, Stability, Weight)
Real-Time based
FEA: In case of a structure with asymetric condition, a case where the soil is excessively high, and the specificity of the field condition exists, the momentum of the corrugated steel structure at the backfill stage through the 3D and 2D modeling computer aided analysis (FEA: Midas GTX, Midas Civil, CANDE) , Engineering services that predict axial force, moment and displacement and reflect it in structural calculation.
3D Scan: In addition, we are the first in the industry to introduce the latest 3D scanning systems (Lieca® 3P, Cyclone®, TrueView®) technology to provide structural monitoring services. Through this, we provide the work to survey the displacement during and after finishing in the backfilling stage and the displacement survey within ± 3mm.
