A delay or slow response in developing shear flow reactions to applied loads
beam girder
The superstructure is steel box girder
It is a technique in civil engineering. Parts of a construction are prefabricated it box sections, transported to the site and added to the existing sections. It is particularly useful in bridge building.
girder isa a large strong piece of metal or wood.
Definition from China ZZHZ company Movable support system is a kind of construction machinery to install bridge girders by way of cast-in-place with its own formwork, supported by box girder. Bridge girder launcher realizes bridge construction if the girder carrier transports the prefabricated concrete girder to the rear part of the launcher. Difference between movable support system and bridge girder launcher 1. Without prefabricating concrete girder in the precast girder yard, the movable support system adopts cast-in-place and field maintenance. Averagely it finishes one piece of girder every 12 days. While for the bridge girder launcher, it needs to prefabricate concrete girder, then transport them to be installed on the bridge floor 2. The movable support system has a longer cycle to finish the project but with low investment and high benefit; the bridge girder launcher with a short completion time but high investment 3. With low investment and short preparation time, the movable support system can be fast put into use. While the bridge girder launcher needs a long time to prepare for other equipments such as girder carrier and gantry crane. 4. With less land occupation, the material cost of the movable support system is relatively low. 5. The movable support system is widely used in the mountain area that can not build large-sized precast girder yard, while the bridge girder launcher is popular in large-sized precast girder yard To sum up, it depends on the practical situation. But generally, the movable support system is more economical and more suitable for constrictive economy environment at present and in the future.
beam girder
Do you mean box girder?
The superstructure is steel box girder
cable stay, arch, suspension, box girder
The disadvantages of a girder bridge is that it's expensive to build. It is also very hard to maintain. It needs to have access to the confined space of the girderbox.
Keith Thompson has written: 'Indications about thermal gradient magnitudes from field studies of concrete box girder bridges' -- subject(s): Box girder Bridges, Concrete Bridges, Design and construction
It is a pre-stressed concrete box girder bridge
It is a pre-stressed concrete box girder bridge.
London Bridge is a pre-stressed concrete box girder bridge.
It is a pre-stressed concrete box girder bridge.
girder is the main horizontal beam . the joists which are usually smaller, are connected to the girders and are supported by the girder.
Guohao Li has written: 'Analysis of Box Girder and Truss Bridges'