Recent experimental research has shown that ordinary unbounded steel reinforced elastomeric bearings (SREBs) can be considered as an attractive cost-effective option for the seismic isolation of highway bridges. To further investigate its benefits, the current study is focused on the seismic risk assessment of an optimally designed highway bridge isolated by SREB system. A typical three-span hi...

The indirect method of using a passing vehicle to identify modal properties girder bridge has become attractive recently. Compared the direct method, which requires lot sensors installed directly on itself, only single sensor indirectly measure response bridge. However, it is difficult eliminate adverse effect road surface roughness. An approach based blind source separation proposed for first ...

Geometric nonlinearity of self-anchored cable-stayed suspension bridges is studied in this paper. The repercussion of shrinkage and creep of concrete, rise-to-span ratio, and girder camber on the system is discussed. A self-anchored cable-stayed suspension bridge with a main span of 800 m is analyzed with linear theory, second-order theory, and nonlinear theory, respectively. In the condition o...

To improve the limiting capacity of isolation bearings and reduce residual deformation, a new material shape memory alloy (SMA) was introduced into damping device. SMA materials have effect, superelastic properties metal alloys. Although bearing can self-resetting ability bridge, it will increase internal force response substructure compared with ordinary bearing. solve this problem, type negat...

We examined whether cross-bridge cycle models with one or two tension-generating steps can account for the force-velocity relation of and tension response to length steps of frog skeletal muscle. Transition-state theory defined the strain dependence of the rate constants. The filament stiffness was non-Hookean. Models were refined against experimental data by simulated annealing and downhill si...

The paper presents finite element (FE) model development and experimental validation for a truck tractor with a three axle single drop lowboy trailer. The main objective of this research activity was to create a simplified, three dimensional virtual FE model, applicable for computer simulation of dynamic interaction between a vehicle and a bridge or road structure. Such model should provide a r...

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Background: Distal tibia fractures are among the most common bony injuries, with a significant rate of nonunion anddelayed union. There are multiple methods for the management of distal tibia fractures. Among the plating methods,there are bridge plating and compression plating techniques. There is still a lack of evidence about whether one methodhas a higher rate of union than...

Abstract This paper deals with experimental and numerical dynamic analyses of two timber footbridges. Both bridges have a span 35 m consist deck supported by arches. The main purpose is to investigate if the properties are season dependent. To this end, tests performed during cold day in winter warm spring Sweden. first bending transverse mode frequencies increase 22% 44%, respectively, due tem...