无级多次调高球型钢支座

Steplessly and multiply height-adjustable spherical bearings

该产品（201420693948.5）是在球型钢支座的基础上，在底部设置多通道注入孔，以满足调高的需要。该支座适用于有地质沉降的地区和平顺度较高的线路。产品参照GB/T17955-2009《桥梁球型支座》标准。

This product(patent number:ZL201420693948.5)sets channels on the bottom of the sphericalbearing to meet height-adjustable requirement. It is used in areas of subsidence andflats.Products refer to:GB/T 17955-2009 Spherical bearings for bridges.