Analysis on effect of steel pipe spacing on bearing performance of the shared tower mounting connector
The shared tower refers to the installation of communication platform on the transmission tower to realize the sharing of power and communication resources.To meet the requirements of mounting height and distribution of the transmission tower,the interconnection between the communication equipment and the transmission tower can be realized through the mounting connectors with different steel pipe spacing.To study the initial stiffness,load-bearing performance and failure mechanism of the mounting connector under different steel pipe spacing,three specimens of mounting connectors were designed and fabricated,the model was established by numerical simulation for extended analysis.The results show that the components can be deformed collaboratively,and the failure modes are all fracture at the rib stiffener or top end plate of rectangular steel pipe.The deformation shape of the mounting connector is obviously affected by steel pipe spacing,and its plastic bearing capacity and initial stiffness decrease with the increase of steel pipe spacing,while the ultimate displacement increase with the increase of steel pipe spacing.The proposed calculation formulas for the yield load and displacement of the mounting connector can provide a reference for similar engineering design.