Reinforced bar system

Prestressed reinforced steel bar is anchored by nut, with the reliable anchor performance. It can be repeated tension and relax.

The prestressedreinforcing steel bartensioninganchorage system

The precision threaded steel bars is with the continuous rolled threaded-shape on the full-length surface of the bar, breaking the bottleneck that machining can not be achieved over long distances thread processing. it is allowed to be anchored and threaded connections from any point of the reinforcing steel bars, and its surface is with the continuous thread, which could be with better adhesion and bond property with the concrete. Finally, the prestressed reinforcing steel bar tensioning anchor system is applied to the pre-tensioned as well as the post tensioned system;At present, the common steel bar specifications include Φ25mm and Φ32mm, supporting by the appropriate anchor plate and nuts, and the sufficient stress could be applied in the prestressed structures, this system now is widely used in bridges, tunnels and ground anchors in prestressed structures; and it can be used as a boom in a temporary structure.

Feature:

l        prestressed reinforced steel bar is anchored by nut, with the reliable anchor performance;

l        It can berepeatedtension and relax, easy to operate

l        It is with very samll loss for the retraction of prestressing tendons, can be used in the prestressing tendons shorter structures, such as vertical prestressed beam and deck transverse prestressed beam;

l        sleeve-type connector can be connected long reinforced

Component:

Prestressed reinforcing steel bar, anchor plate, nuts, spiral ribs, gaskets and others

  

Prestressed reinforcing steel bar Construction Notes

l        The cold-rolled thread steel is easy to lose efficacy, so strictly prohibiting the use of welding, gas cutting the rolled wire reinforcement;

l        Due to the stiffness and no-easy bending factors of the prestressed

reinforcement, it is often used as a straight-line prestressing tendons.

If indeed need to bend to use, please note that the minimum bend radius in the technical parameters;

l        In process of construction, the people should stand on the side but not in front , to prevent construction errors resulted in harm.

PT Bar coupler design data(mm)

Dia	Outer-Dia	Coupler Length
25	45	90
32	60	100

Mechanical property of PT Bar

Strength level	σs(MPa)	σb(MPa)	δ5(%)	Cold bond 90 degree
75/100	≥750	≥1000	≥7	7
95/100	≥950	≥1200	≥8	8

Chemical components of PT Bar

Type	Chemical components
	C	Si	Mn	P	S	Mo
40Si2MnMoV	0.38 ~	1.4~	0.7~	≤0.045	≤0.045	0.14~
	0.45	1.8	1.05			0.2
15Mn3SiB	0.12 ~	0.5~	3.2~	≤0.05	≤0.05	/
	0.2	0.9	3.4

High-strength reinforce bar dimension(mm)

Dia type	Dia of Bar d0		Dia	Teeth high	Teeth widness	Pitch
	dh	dv	D	h	b	t
25	25±0.5	25±1.0	25±1.0	1.6±0.5	6±0.5	12±0.5
32	32±0.5	32±1.0	32±1.0	2.0±0.5	7±0.5	16±0.5

PT Nut design data (mm)

PT Bar Dia	Screw thread	Nut	Washer	Bearing plate		Pipe Dia
		S×H	D×d×t	a×b×t1	Middle hole
25	M27	41×40	70×30×6	100×100×14	Φ 36	34(1″pipe)
32	M32	55×50	80×37×8	120×120×16	Φ 45	43(11/4pipe)

Reinforced bar system