Influence of seismic energy dissipation technology on carbon emission of building construction

Carbon emissions from the construction industry have attracted significant public attention, and the sector's low-carbon transition is crucial for achieving carbon neutrality. Although extensive research has been conducted in this field, limited studies have investigated the combined effects of structural performance design and seismic safety technologies on carbon emission reduction. This study aims to simultaneously enhance structural safety and reduce carbon emissions using the seismic energy dissipation technology. Eight reinforced concrete frame structures with varying numbers of floors are selected as case studies in accordance with the Chinese design code. By incorporating additional energy dissipation devices, the required dimensions of structural components in structures with damper (SWD) are reduced compared with structures without damper (SWOD), thereby lowering carbon emissions and improving seismic performance. Both SWOD and SWD systems are designed for each of the eight reinforced concrete frame structures for comparative analysis. Structural component dimensions are calculated using SAUSG software, and key performance indicators, including the natural period and inter-story drift ratio, are analyzed to verify compliance with code-specified safety requirements. Engineering quantities and life-cycle energy consumption are quantified, including the production and transportation of materials, as well as construction and dismantling stages. The results indicate that SWDs reduce material and energy consumption, with average carbon emissions 17.4% lower than those of SWODs. This study provides a novel perspective on carbon emission reduction during the design phase and offers an effective technical pathway for the coordinated development of low-carbon buildings and seismic resilience.