نوع مقاله : مقاله پژوهشی
نویسندگان
1 گروه مهندسی عمران، واحد دامغان، دانشگاه آزاد اسلامی، دامغان، ایران
2 دانشجوی کارشناسی ارشد، گروه مهندسی عمران، واحد دامغان، دانشگاه آزاد اسلامی، دامغان،ایران
3 گروه مهندسی برق، واحد دامغان، دانشگاه آزاد اسلامی، دامغان، ایران
چکیده
کلیدواژه‌ها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
In today's architecture, the use of space structures is very common and has attracted the attention of designers. Various forms of these structures can be seen in architectural designs and structures, and one of these types of structures is spherical domes. To calculate the wind load on all structures, one of the most important coefficients required is the wind pressure coefficient (Cp), which actually considers the effect of the geometry of the structure in the calculation of the wind load on the structure. In the loading codes, the coefficient (Cp) is provided for some geometries. In this article, the effect of wind load on spherical domes with three height-to-span ratios of 0.25, 0.5 and 0.75 has been investigated. Also, the effect of surface roughness has been studied in this research.The maximum of negative pressure coefficients (suction) for domes with a height to span ratio of 0.25, 0.5, and 0.75 are obtained as -0.86, -1.07, and -1.22, respectively. In domes that have protrusions in the covering roofs, these protrusions cause a general change in the wind pressure coefficients compared to the wind pressure coefficients in the domes with a the covering becomes without protrusions; Therefore, the most effective position of the projection is when the projection of the dome is placed at an angle of 90 degrees to the direction of the wind (=90°), in which case the pressure coefficients jump from negative values to positive values to Cp=+0.7 it arrives.
کلیدواژه‌ها [English]
)