what are design standards and codes for segmental assembly launching gantry?
To design a segmental assembly launching gantry, we must take national design standards and codes into consideration to confirm that we make a qualified and good launching gantry.
HZP1600 segmental assembly launching gantry
What is brief introduction on Taohuayu Yellow River Bridge in China?
HZP140
TaohuayuYellow RiverBridgeis an important channel across the Yellow River inHenan,CHINA. According to the actual condition, ZZHZ gives a proposal on segmental assembly launching gantry to install the bridge girders.
What are necessary preparation parts before bridge girder installation?
Launching gantry in the worksite
There are two necessary preparation parts for bridge girder installation according to ZZHZ, please take the following before using a launching gantry to install girders as a reference:
What are test content of launching gantry after being installed?
The launching gantry needs to be installed after finishing fabrication. To make sure the
quality and customer’ satisfaction, we need to inspect and test the launching gantry.ZZHZ is a professional
factory with launching gantry design , manufacture and installation, and our technicians have very rich experience, below test content for launching gantry is for your reference:
1. the connection of hydraulic tube
2. the connection of electric circuit
3. the paving of rails
4. high strength connection bolt reach the fixed torque
5. starting the traveling trolley and watching its running and winch’s lifting.
6. turn on power and watch the light of instrument panel .
7. opening the hydraulic system and hydraulic pressure gauge.
What is launching gantry?
Launching gantry is a special bridge construction equipment to put precast girders on prefabricated piers.
common railway launching gantry
How to Identify the Quality of Hydraulic Oil?
The quality of hydraulic oil can be identified from features of anti-oxidation, anti-foaming, abrasion resistance and the smell and color. Good hydraulic oil can extend the span life of launching crane.
Honeycomb girder launching crane
What are reasons to cause flaws on the steel structure of launching crane?
There will have flaws on the launching crane steel structure after a long time use, which will pose a great danger to safety of launching crane, so we must find reasons to cause flaws.
ZZHZ launching crane
How to recognize ‘rail gnawing’ of bridge crane?
bridge crane
Rail gnawing caused by insufficient rigidity and askew wheel will lead to abnormal operation of bridge crane, thus lower the production efficiency. Below tips from ZZHZ help you to recognize ‘rail gnawing’:
- during the process the bridge crane starts and stops, there is loud noise and bridge crane is askew and unsteady;
- there has deep and bright groove or deep grinding crack in contact surface between wheel edge of bridge crane and rail track
- what is more worse is when the crane is moving, there is loud noise such as ’hissing’ and ’kengkeng’, then it may cause derailing.
How to maintain the steel structure of launching gantry?
Launching gantry is mainly made up of steels, so maintenance of steel structures plays a crucial part. Below tips from ZZHZ teach you how to maintain steel structure of launching gantry:
launching gantry
How to avoid rust of metal structure of launching gantry?
Paint coating on the surface of launching gantry is necessary before delivering the machine, but
the painting will fall off after encountering colliding or a long time use. If we do not maintain
steel structure of launching gantry immediately, it will rust, which pose a great danger on
safety of launching gantry. Below tips are anti-rust measures for launching gantry:
launching gantry main girder
