The Stability of Elliptic Paraboloid Grid Shell Lighting Roofs with Semi-Rigid Joints
Grid shell is a new type of single layer latticed shell. Joint connections of this structrue always adopt semi-rigid joints: in-plane pin joints, out-plane rigid joints. A parametric modeling method using self-designed program is proposed in this paper. Bearing capacity of the elliptic paraboloid grid shell with semi-rigid joints is analyzed. Then, the influence of section of steel bars, rise-span ratio and initial imperfection on the bearing capacity is investigated.
Hui Li, Yan Feng Liu, Ming Guo, Rui Zhang and Jing Du
R. Q. Feng et al., "The Stability of Elliptic Paraboloid Grid Shell Lighting Roofs with Semi-Rigid Joints", Advanced Materials Research, Vols. 374-377, pp. 2148-2151, 2012