Search Results (2)

To address the limitations of conventional temporary steel platforms, a novel lightweight temporary steel platform (LTSP) system was developed based on an inland river high-pile wharf project. The proposed system utilizes permanent rock-socketed steel tubular piles of the wharf structure as the primary load-bearing foundation and consists of welded corbels, twin I-beam main girders, secondary I-section distribution beams, and steel deck plates. A construction method integrating permanent and temporary structural components was proposed. Field measurements were conducted to investigate the vibration response characteristics of the LTSP. The results indicate that the platform exhibits relatively high natural frequencies, with all identified fundamental frequencies exceeding 14 Hz, suggesting a low risk of resonance under human-induced excitations. The lateral stiffness of the platform was found to be greater than its vertical stiffness. Pedestrian-induced vibrations were mainly concentrated near excitation locations, whereas vehicle-induced vibrations were more uniformly distributed across the platform. The permanent steel tubular piles provided effective local restraint and enhanced structural stiffness, thereby reducing vibration transmission to adjacent areas. Construction machinery generated the most significant vibration responses, particularly during simultaneous multi-equipment operations. Therefore, to ensure the safety and operational performance of the temporary steel platform, it is recommended to avoid the simultaneous operation of heavy equipment, such as rotary drilling rigs, fully loaded tanker trucks, and truck cranes. Furthermore, as the current findings are based on a single field application case, future studies should incorporate long-term monitoring and numerical modeling to further evaluate the platform’s applicability to other practical engineering projects. Full article

Lightweight modular construction has become an increasing need to meet the housing requirements around the world today. The benefits of modular construction ranging from rapid production, consistency in quality, sustainability, and ease of use have widened the scope for the construction of residential, commercial, and even emergency preparedness facilities. This study introduces novel floor panels that can be flat-packed and built into modular housing components on-site with minimal labour and assistance. The flooring system uses hollow cellular panels made of various configurations of trapezoidal steel sheets. The structural performance of three different configurations of these hollow flooring systems as a modular component is presented in this study by analysing the failure modes, load-displacement parameters, and strain behaviour. The study confirms significant advantages of the proposed hollow floor systems, with multi-cells reporting higher load-carrying capacity. The hollow flooring system performed well in terms of structural performance and ease in fabrication as opposed to the conventional formworks and commercial temporary flooring systems. The proposed flooring system promises efficient application as working platforms or formworks in temporary infrastructural facilities and emergency construction activities. Full article