An mass ratio of permanent loads to variable loads of reinforced concrete buildings

Autor: Wanghu Sun, Yuning Sun, Chen Liu
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Journal of Asian Architecture and Building Engineering, Vol 0, Iss 0, Pp 1-14 (2024)
Druh dokumentu: article
ISSN: 1347-2852
13467581
DOI: 10.1080/13467581.2024.2343802
Popis: Environmental and resource crises necessitate sustainable development, yet construction lags in material conservation and carbon mitigation. Extensive use of reinforced concrete results in excessive permanent loads and larger building self-weight, elevating material use and energy consumption. A concept of mass ratio of permanent loads and variable loads (${R_m}$) is established for reinforced concrete buildings, and its reduction measures are outlined. Through statistical and regression analysis of 60 residential and 45 public buildings, ${R_m}$ have been validated as an indicator of structural value and design rationality, and its importance for material conservation and cost-effectiveness is underscored. Results shows that most reinforced concrete residential buildings have ${R_m}$ above 10, public buildings exceeding 7, indicating excessive structural self-weight. It requires lowering ${R_m}$ in structural and material innovations and optimized engineering design, to enhance material conservation. The innovation of this paper lies in three aspects: firstly, the concept modeling of ${R_m}$ addresses the quantitative assessment criteria in areas such as architectural materials and engineering design; secondly, the calculation of ${R_m}$ directly utilizes raw data from engineering design, providing a scientific and feasible approach for statistical analysis; thirdly, the inherent deficiencies in reinforced concrete buildings are intuitively indicated from the perspective of ${R_m}$.
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