High damping mount

LRB Series Lead rubber bearing LRB Introduction Series Lead rubber bearing in accordance with the existing transportation industry standard "roads and bridges lead core rubber bearing" (JT / T822-2011), the national standard "rubber Part holder 2: bridge rubber bearing "(GB 20688.2-2006) and related industry standards, while referring to European standards developed by the shock interval class bridge components series, applicable to all types of seismic intensity of 8 degrees and below zone highways and municipal bridges. LRB Series Lead rubber bearing performance parameters 1. This series LRB Series Lead rubber bearing design shear modulus of 0.8MPa, 1.0MPa, 1.2MPa. 2. Lead rubber bearing rectangular horizontal equivalent stiffness 1.3 ~ 9.7KN / mm; Round Lead rubber bearing level equivalent stiffness 1.1 ~ 10.4KN / mm. 3. Lead rubber bearing rectangular equivalent damping ratio of 14.4% ~ 22.7%; Round Lead rubber bearing equivalent damping ratio of 13.5% to 20%. 4. This series bearing ambient temperature range of -25 ℃ ~ 60 ℃. 5. If the project has special needs, this series bearing the above technical performance parameters can be custom designed. LRB Series Lead rubber bearing LRB series Code Description Lead rubber bearing category 1. Round Lead rubber bearing is divided into 22 categories: d420, d470, d520, d570, d620, d670, d720 , d770, d820, d870, d920, d970, d1020, d1070, d1120, d1170, d1220, d1270, d1320, d1370, d1420, d1470 2. Lead rubber bearing rectangle is divided into 25 categories: 300x420,350x350,350x520 , 420x420,470x570,520x520,520x620,570x570,570x670,620x620,670x670,720x720,770x770,820x820,870x870,920x920,970x970,1020x1020,1070x1070,1120x1120,1170x1170,1220x1220,1270x1270,1320x1320,1370x1370