Contact Us

Jiangsu Bailey Steel Bridge Co.,Ltd

Address: N0.2 Meilinwan Branch Road,Dingmao District, Zhenjiang, Jiangsu, China (Mainland)

Contact Person: cindy cheng (manager)

Tel: 86-511-86095270

Fax: 86-511-88881212

Mobile Phone: 86-13775377436

E-mail: jsbeileivip@163.com

Website: http://www.cnbailey.com


Home > Knowledge > Content

Bridge expansion and contraction problems

Jiangsu Bailey Steel Bridge Co.,Ltd | Updated: Jul 23, 2015

Due to changes in ambient temperature, steel cable tray for expansion and contraction of the phenomenon. Outdoor bridge temperature environment and a maximum temperature of 40 degrees Celsius, the lowest temperature is-20 degrees, the maximum shrinkage of cable tray evaluated according to the following formula:

Δ t=11.2x10-6x60deg (degrees) x1000mm

In conclusion:

Temperature at 60 ℃, δ ι =0.672mm/m

When the temperature is 50 c, δ ι =0.560mm/m

When the temperature is 40 c, δ ι =0.448mm/m

Straight segments to cable trays should be taken into account in the design of expansion joints, expansion joint spacing recommendations the following determination:

When the temperature is 40 degrees 50m;

When the temperature is 50 c for 40m;

When the temperature at 60 ℃, 40m.

Previous: What is a bridge? Structure of the bridge!

Next: No Information

Home | About Us | Products | News | Knowledge | Project Cases | Contact Us | Feedback | Mobile | XML

TEL: +86-511-86095270  E-mail: jsbeileivip@163.com