ZZHZ has set up the technology center which combine with universities，it buys high-tech design soft to develop the new girder style-honeycomb girder.  it solves the large weight of  web girder and the difference of stiffness of truss girder and honeycomb girder. And isoceles triangle honeycomb girder has got the patent.
1. explanation of equipment
the honeycomb girder gantry crane is made up of main girder, legs, crane traveling mechanism, lifting trolley, ladder, driver room and electrical control system etc.
2. usage and applicable range
the honeycomb gantry crane is mainly used in the assembly of  bottom of box girder, reinforcing cage of web plate, reinforcing cage of surface and hydraulic internal mold. The working temperature is -10℃～+40℃. And the altitude shouldn’t exceed 2000m, the humidity≤95%. The working condition is worse than the above condition. When the gantry crane is working ,the wind speed should ≤6 grade, if the wind exceed 6 grade, the crane is prohibited to work.