Seismic retrofitting methods suitable for fall prevention measures for specific ceilings.
The "Fail-Safe Support Method" is a seismic retrofitting technique specifically designed for existing ceilings, where support materials and nets are installed directly beneath the existing ceiling and connected to the structural framework to prevent the drop of suspended ceilings. Structural components integrated with the building's framework are installed around the perimeter of the ceiling, and by fastening them to a grid-like support material arranged beneath the ceiling surface, the displacement of the ceiling during an earthquake is suppressed. Additionally, a high-strength fiber material net, which is sandwiched and integrally screwed between the support material and the ceiling surface, continues to support the ceiling components in the event of a ceiling collapse, preventing them from falling. 【Features】 - Minimizes partial dismantling of the existing ceiling. - Allows for continued use of the facility during construction. - Compared to traditional methods that involve completely removing the existing ceiling and installing a new seismic ceiling, this method allows for shorter construction periods and lower costs. *For more details, please download the PDF or contact us.
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【Measures to Prevent the Falling of Specific Ceilings】 ■ Measures to prevent the falling of ceilings by installing components (such as nets, wires, ropes, etc.) that have been verified not to detach or break even when impacted by the force of falling ceiling materials. ■ When newly installing specific ceilings in a building, it is required to ensure structural safety based on the technical standards set by the Ministry of Land, Infrastructure, Transport and Tourism (Notification No. 771 of 2013), including appropriate brace placement and securing clearance around the ceiling. ■ For existing specific ceilings, compliance with technical standards is required during expansion or renovation that involves confirmation application procedures; however, for ceilings that are structurally separated from the expanded or renovated parts, it is permitted to substitute with fall prevention measures. *For more details, please download the PDF or contact us.
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At Shimizu Corporation, we undertake construction work such as architecture and civil engineering (general construction industry). We will continue to contribute to creating environments where people can live safely, securely, and comfortably, while aiming to be a company that grows sustainably.