HDR high damping rubber bearing for earthwork product

1)up to 16% damping,high damping 2)no damage for high intensity earthquake 3)used in building and bridge 4)HDRB earthwork pro

high damping rubber bearings:HDRB isolators consist of alternate layers of rubber and vulcanised reinforcement steel plates of limited thickness. They allow isolation of the structure by a proper selection of the horizontal stiffness and they can dissipate energy up to 16% damping due to high damping rubber compound.

  

HDRB isolators have the following advantages:

- No damage to the structure that remains due to the elastic response for high intensity earthquakes with no interruption of the structural function. This is a primary goal for strategic structures (hospitals, control rooms, ecc…) - Very well known and used in many applications both for buildings and bridges - Very simple maintenance mainly limited to a periodic visual inspection for all the design life - Capacity to reduce the seismic energy from the ground to the structure with consequent simplification of the structure design

 

BELOW   IS OUR HDR TESTING DATA: 

 

Project name: HDR-400*400*123 High Damping Rubber Bearing Mechanics Performance Testing

Mechanics Performance Testing Results Form 1  Basic Performance (γ=+/-100%) 

Test Name	Test Date	Surface Temperature (°C)	Surface Presure (MPa)	Kv(KN/mm)	Kh(Kn/mm)	Heq(%)
				Measured Volue	Measured Value	Measured Value
HDR400*400-2011-17	20110108	24	12	567.2	1.321	14.158
HDR400*400-2011-17	20110408	24	6		1.276	12.066

Mechanics Performance Testing Results Form 2  Basic Performance (γ=+/-175%) 

Test Name	Test Date	Surface Temperature (°C)	Surface Presure (MPa)	Kh(Kn/mm)	Heq(%)
				Measured Value	Measured Value
HDR400*400-2011-17	20110108	24	12	1.486	11.609
HDR400*400-2011-17	20110408	24	6	1.280	10.382

Mechanics Performance Testing Results Form 1  Basic Performance (γ=+/-250%) 

Test Name	Test Date	Surface Temperature (°C)	Surface Presure (MPa)	Kh(Kn/mm)	Heq(%)
				Measured Value	Measured Value
HDR400*400-2011-17	20110108	24	12	1.515	10.476

Earthquake Engineering Research &Test Center (EERTC) of Guangzhou University

Guangdong Provincial Key Laboratory of Earthquake Engineering & Advanced Technology

  

 (source material)

1.Earthquake Engineering Research &Test Center (EERTC) of Guangzhou University

2.Guangdong Provincial Key Laboratory of Earthquake Engineering & Advanced Technology

(EERTC IS China's MOST ADVANCED TECHNOLOGY IN EARTHQUAKE ENGINEERING)

We can supply many different kinds of size HDR ,range from 20*20 to 1400*1400.

HDR high damping rubber bearing for earthwork product