How to install bottom formwork before producing concrete girder?
Here we referes pre-stressed reinforced concrete box girder production technology with post-tensioning method.
concrete girder production with post-tensioning method
What is technological process to produce concrete girder with post-tensioning method?
concrete girder
What is application scope for post-tensioning method?
concrete girder for high speed railway
What are features of concrete girder with post-tensioning method?
Concrete girder is usually used for bridge construction, lifted and installed by launching girder. Quality of concrete girder decides the quality of a bridge, here we simply introduce features of concrete girder with post-tensioning method.
What is post-tensioning method?
Post-tensioning method refers the method that cast-in-situ cement concrete reaches specified strength, then tension pre-stressed tendons to form pre-stressed concrete member.
precast girder
What are assembly order on segmental assembly bridge building crane?
HZQ57/80 bridge building crane is disassembled as transporting. After being carried to the worksite, install them with cranes.
bridge building crane
What are structures of bridge building crane?
Bridge building crane is made up of main girder, lifting trolley, front auxiliary legs, front legs, middle legs, rear legs, middle auxiliary legs ,rear bracket,electrical system and hydraulic system etc.
bridge building crane
Russia team visit HZQ bridge building cranes of ZZHZ
To boost economy development ofDatong(Shanxiprovince),Xi’an(Shannxi province) and surrounding areas,Chinastarts building railway passenger dedicated line fromDatongtoXi’an.
HZQ bridge building crane made by ZZHZ is used to construct the railway; it is box type double girder bridge building crane which meets the demand of Da-Xi railway.
TwoRussiateams in March, 2013 visited T-girder precast yard in Shananxi province and shown great interest in ZZHZ bridge building cranes, which is a breakthrough for ZZHZ to develop Russian market. Bridge building cranes both for highway and railway play a crucial role in the Da-Xi railway project, which not only wins good reputation from domestic big construction companies, but also attract customers fromSingapore,Indonesia, Saudi Arab and other countries.
What are construction steps of segmental assembly bridge building cranes?
Construction technology of the segmental assembly bridge building cranes is complete span segments suspension assembly. As feeding girders, segments are carried by girder carrier to designated position, and then lift them. Below are construction steps:
bridge building cranes
What are basic structures of segmental assembly overhead launching gantry?
Segmental assembly overhead launching gantry usually adopts the construction method: full span segments suspended, then pre-stressed steel cable strands tension. After finishing full span precast girders installation, the overhead launching gantry will move to next span.
overhead launching gantry
