3.The girders are carried on trestles .
4.The window frame folded up under the heavy weight of the beam.
5.Construction of 28 m span-beam by pos-tensioning method with bonding inherent stress
6.connecting the crossbeam to the apex of a triangular truss.
7.The Construction of prestressed long-span beam of athletics and Art buliding in Jinshan high school
8.Those beams will need to be replaced; it looks as though woodworm has set in.
9.This beam bears the whole weight of the upper floor.
10.Welding dipper paw beam with cutting silk welding
