This paper applies three classical and very popular discrete-time model-based sliding mode controllers, namely the Furuta controller, Gao quasi-relay controller due to Milosavljević, position control of tower crane systems. Three single input-single output (SISO) systems are considered, for cart control, arm angular payload separate SISO controllers designed in each system. Experimental results...

This paper reviews the summary and analysis of special technical safety schemes for hazardous ultrahazardous activities, supported by housing scaffolding, installation, dismantling outer wall attached tower crane, deep foundation pit with supporting structure, municipal bridge box girder formwork support, as well grooved Larsen steel sheet pile, which are commonly seen in recent years, so to en...

Crane scheduling in container terminals is known as a difficult optimization problem that has become even more challenging in recent years with the proliferation of multi-gantry automated stacking cranes. In this paper we present an efficient algorithm solving a subproblem arising in this context, namely deciding the priority of cranes after transportation tasks have been assigned. We tackle th...

Tower crane safety governance is an important issue related to the sustainable development of China’s construction industry. The complex collaborative relationship among stakeholders determines efficiency tower governance. From perspective social networks, this study constructs a structure model from four dimensions, i.e., transaction, supervision, dependency, and communication, analyzes struct...

The natural sway of crane payloads is detrimental to safe and efficient operation. Under certain conditions, the problem is complicated when the payloads create a double-pendulum effect. Most crane control research to date has focused on single-mode dynamics. For example, several researchers have shown that signal-mode oscillations can be greatly reduced by properly shaping the inputs to the cr...