Abstract null null Suspension bridge is a flexible structure, which responses to live loads are quite complicated due to the coupling of several factors. In this paper, an analytical algorithm is proposed for estimating the deformation and internal forces of earth-anchored suspension bridges under the concentrated live load. Based on the known parameters of the completed bridge and the live load, the deformation of the main cable, the deformation of the girder, the relationship between the main ...
Abstract null null The high-frequency force balance (HFFB) wind tunnel test is one of the most widely used techniques to estimate wind effects on supertall buildings. This paper introduces a wind-resistant optimal design method of supertall buildings based on HFFB wind tunnel experiments. Based on the HFFB wind tunnel test and wind-induced vibration analysis, it provides a reliable and efficient method for structural optimization of supertall buildings with different types of structural members ...
Abstract null null In this study, a new displacement amplification damping system was proposed for maximizing the performance of a damping device, even in a stiff structural system. The proposed damping system comprises steel wire ropes, pulleys, and a viscous damper; the damper displacement is amplified on the basis of the working principle of a block and tackle system. Full-scale experiments were conducted to investigate the operating mechanism of the proposed damping system and evaluate its p...
Abstract null null A new design of double wythe insulated wall panels using ultra-high performance concrete (UHPC) and glass fibre-reinforced polymer (GFRP) shear connectors is developed and tested. It consists of two 25 mm thick UHPC ribbed wythes with a 152 mm thick layer of extruded polystyrene (XPS) sandwiched in between. Small diameter (4 mm) GFRP bars were used as reinforcements in the wythes and as diagonal shear connectors. Five 3.0 × 0.61 × 0.2 m panels were tested to failure in flexure...
Abstract null null It is essential to understand the cracking mechanism of dam galleries for the overall structural design and safety of a dam. In this study, the stress equation of the D-shaped concrete gallery is derived by the complex function method of elastic mechanics and the conformal mapping method. Based on a series of field tests, monitoring data, and three-dimensional (3D) nonlinear numerical simulation, the pattern and causes of cracks in the concrete gallery of a super high arch dam...
Abstract null null The safety of buildings located in seismic zones is related to the proper design of both the structural and the non-structural components. In recent seismic events, the collapse of the non-structural parts clearly demonstrated how they may represent a risk not only for the life safety but also the majority of the economical losses. Light cladding panels are a common solution to built facades in framed systems with rigid infills, particularly in reinforced concrete structures w...
Abstract null null In order to explore the anti-impact properties of the liquid-filled structure, concave and cuboid cell structures are selected for drop weight impact tests and finite element numerical analysis with and without liquid filled in the structures. Dynamic deformations were observed using high-velocity photography, and dynamic strains at typical positions were tested. The final failure modes of the cells were obtained using the 3D scanner. Then the deformation/failure processes and...