7 months ago
2
In a large measurement towards reducing operation time, the CSIR-Structural Engineering Research Centre (CSIR-SERC), Chennai, has developed and demonstrated an indigenous Threaded End Anchor strategy for Indian reinforced alloy bars conforming to IS 1786:2008, named Head-T. Instead of manually bending the extremity of the bars astatine the joints of the columns and beams, the Head-T anchors tin beryllium fixed connected the ends. The ends volition person threads that tin beryllium screwed into the anchors.
This anchor strategy addresses 1 of the agelong – clip challenges successful reinforced factual construction, which is reinforcement congestion, and the resultant request for lengthy anchorage requirements. This, peculiarly successful seismic and heavily-loaded structural regions arsenic beam-column joints, are the astir susceptible locations to dissipate seismic energy.
“We person developed this exertion aft extended laboratory tests and full-scale experimental investigations. Tension tests connected idiosyncratic rebars and reverse cyclic loading tests connected full-scale beam-column joints excessively were carried out. The results person demonstrated that Head-T anchors guarantee superior strain capacity, effectual vigor dissipation, and unchangeable hysteretic behaviour, comparable to accepted systems,” explained Saptarshi Sasmal, elder main scientist, who pb the squad that designed the technology.
N. Anandavalli, Director, CSIR-SERC said that that Head-T volition beryllium casual to adopt, cost-effective, and suitable for some mean and seismic plan applications, including buildings, bridges, foundations, dams, and atomic structures. Two types of anchors, quadrate and circular heads, person been optimised based connected spot and feasibility criteria for usage crossed assorted rebar diameters disposable successful India.
The improvement of this indigenous exertion supports the nationalist ‘Make successful India’ inaugural and aligns with the country’s extremity of self-reliance successful infrastructure technologies. The exertion has been afloat developed, tested and demonstrated and is acceptable for exertion transportation to manufacture partners, she added.
