cables have always been under consideration as a structural element because of important features such as large strength to weight ratios and long spans. their equilibrium analysis is an important issue in this regard. but this analysis involves highly nonlinear equations arising from large deformations and material nonlinearity. different methods have been under use for numerical analysis of s...

In this paper robust PID control of fully-constrained cable driven parallel manipulators with elastic cables is studied in detail. In dynamic analysis, it is assumed that the dominant dynamics of cable can be approximated by linear axial spring. To develop the idea of control for cable robots with elastic cables, a robust PID control for cable driven robots with ideal rigid cables is firstly de...

Rock bursts are a natural phenomenon that caused by high stresses and faults within the deep geological profile. The framework mining excavations, comprising various rock face supports such as cable bolts, is required to withstand bursts. These mechanisms subject static dynamic loading conditions which possess unique challenges. This study focused on shearing impact of loads key structural supp...

a large number of authors have studied to find out how to control scouring around a pier along direct stream. the objective of this research is then to study a scour pattern around such piers on curves rivers due to the fact that there may be a difference between a flow pattern on a direct line and the meander. thus, this study tries to check whether the use of cable and collar alone and in a c...

This paper presents long-term condition assessment approaches of cables and bridge decks under in-service loads based on Structural Health Monitoring (SHM) technique. Aiming to the critical structural components, three important issues related to the long term performance evaluation, including loads and responses modelling, resistance degradation and fatigue life assessment, were investigated i...

External dampers and cross-ties are commonly used to control vibrations of stay cables on cable-stayed bridges. While dampers contribute directly to the structural damping of the attached cables, cross-ties mainly help to increase the stiffness of the connected cable system. The idea of incorporating cross-ties with dampers has also been attempted in a few recent applications to benefit from th...

On the basis of original design Ruck Bridge by Mr. Lin Tongyan, this paper modifies single-amplitude curved cable-stayed bridge to be an elliptical ring main beam two-amplitude deck, with a duck-egg-shaped arch tower and spatial cable net four planes, form four-cable-plane two-amplitude-curve for canyon-river topography, so as improve structural stress performance curved-beam bridge, promote tr...

in this paper, a new approach to modify cable tension measuring mechanism is described; furthermore, the constructed boards which amplify load cell output are introduced. this approach has some advantages including of providing feedback for motors, evaluating the robot’s ultimate load carrying capacity, improving the motor control system and estimating the vibrating deflections of the end effec...

The load transfer mechanisms of cable bolts differ from those for normal rebar bolts. The cable bolts used in mines are basically steel strands with different constructions depending on the number of wires or elements and the way they are laid. Tendon bolts (rebar and cable) are normally evaluated for their strength and load transfer properties. The tendon strength can be evaluated by the tensi...