4. The design basis of Downstroke Movable Support System

MSS600 Downstroke Bridge Creating Machine is designed according to the <<Purchase and Sale Agreement>>, the drawing of concrete box-girder, piers and abutment provided by customers and some national design standard in the field of machinery.
● << Crane Design Standard>> (GB/T3811)
● << Steel Structure Design Standard>> (GB50017)
● << Code for Design of Highway Bridges and Culverts>> (JTJ021)
● << The General Safety Technical Requirements for Engineering Machinery>> (JB/T6030)
● << Code for Construction and Acceptance of Electrical Appliance Installation Engineering>> (GB50256)
● << The General Technical Conditions for Hydraulic System>> (GB 3766)
● << Code for Construction and Acceptance of Steel Structure>> (GB50205)
● << Mechanical Properties of Fasteners—Bolts, Screws and Studs>> (GB 3098.1)

5. The video of Honeycomb beam Honeycomb beam Downstroke Movable Support System

6. Main design requirements of Downstroke Movable Support System

● When the machine counters the conditions like: the continuous girder or transferring, it is equipped with the functions of counterweight mechanism and overall opening and closing.
● The traveling method is walking hydraulic push-put, the support leg rearrangement needs the auxiliary facility.
● The machine is double main girder, supporting with the corbel and piers.
● The max. anti-force of the supporting beam is 316N at working.
● The construction speed : 12 days for two piers ( later it will be 11 days for two piers).
● The max. anti-support force of support roll while traveling: 103N.
● Applicable longitudinal slope/lateral slope: 2%/2%.
● The deflection of main girder: 1/700