This technology is a building system where H-beam girders with integrated end blocks are mounted onto PC columns featuring protruding compression blocks and secured with fastening devices. The floor is then constructed by placing steel decks, consisting of corrugated steel plates and omega (Ω)-shaped truss girders, onto the top flanges.
Hybrid moment-resisting frame structures mixing PC columns and H-beam girders have historically faced challenges in ensuring performance and construction efficiency due to complex joints between dissimilar materials. Furthermore, using H-beams with a uniform cross-section across the entire length—based on the high negative moment at the ends—has been inefficient. Additionally, conventional corrugated or truss decks used for floor slabs have limited rigidity, making them unsuitable for long-span applications.
This technology features a pair of continuously corrugated lattice members inserted into the trough of a corrugated steel plate between two crests. The lower fixing parts are bent outward and the upper support parts inward to join together, with longitudinal top and bottom reinforcement bars creating an Ω-shaped truss. The crest tops feature stiffened grooves filled with compression material, corners have fastening grooves for the lower fixing parts, and both ends include haunches, with compression and end blocks made of UHPC. Suitable for logistics centers, large factories, gyms, and exhibition halls requiring wide, column-free spaces, it increases deck rigidity to allow for shoring-free long-span slab casting and simplifies column-beam connections through dry assembly.
This invention was developed with support from the Ministry of Science and ICT's AI-based Smart Mega-Structure Laboratory.
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