Box shaped girder

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Simply supported two-lane prestressed prefabricated box girder iswidely used in the construction of passenger dedicated railways and highwaybridges. The static and stability is very important to the transportationsecurity. The rational designed simply supported two-lane prestressedprefabricated box girder is the guarantee of producing box girders quickly. Thesafe and reliable structure which meets the deformation amount while using, isthe premise to make sure the security of fabricated box girders.


  Simply supported two-laneprestressed prefabricated box girder consists of hydraulic outer modelcomponents such as outer model, end model, inner model traverse carriage, outermodel traverse carriage, the outer model track, and the bottom model; andhydraulic inner model components. The hydraulic inner model is controlled byhydraulic, which doesn’t need a human strip the model, so as to realize thestripping automatically. It has the advantages of template installationaccurate, fast and good steel structure. The outer model also works highlyautomatically and it is convenient strip the model, which helps thetransportation of formed girders, the storage and arrangement of the girderfield, and helps the inner model track get out of the girder chamber easily.


Jing-Jin Intercity Passenger Line is theearliest finished passenger dedicated railway of China with high standards, thelength of which is of 120km, connecting the two municipalities Beijing(Capital) and Tianjin. The Jing-Jin Intercity Railway uses the whole set of900tons and 32m simply supported box girder, the length of which is of 32.6m,the width of bottom is of 5.5m, the width of top is of 13.4m, the girder’sheight is of 3.05m. Started the construction on July 4, 2005 and terminatedwith success on December 15, 2007, and began the operation on August 1 of 2008.The Girder Field #5 for Jing-Jin Intercity Passenger Line locates in WuqingDistrict of Tianjin City, occupying a area of 180 acres, prefabricating 379sets of girders (370 sets of 32m, 9 sets of 24m), undertaken by China RailwayBureau 11. They had to finish supplying the girders by the middle of Februaryof 2007, customizing 20 sets of custom girder templates, one of which is thegeneric template for both 24m and 32m.


Wu-Huang IntercityRailway is the express railway inside the Wuhan City, which connects Wuhan,Huangshi, and Huanggang City. The railway starts from Wuchang (Wuhan) Station,terminates in Huangshi Daye North Station, the length of which is of 97km, thebridges and tunnels occupying 71%. The design speed for vehicles on thisrailway is of 200km/h or higher. The prefabricated box girder is of thesingle-box and two-chamber, having two kinds of lengths: 24m and 32m. The widthis of 12.2m and the height is of 2.7m. The 24m box girder weights 500 tons and32m 700 tons. The Huangshi Girder field locates in Daye North Station of WuqiaoVillage, Dongyue Street, Daye City, undertaken by China Railway Bureau 18, thefirst company, supplying especially girders for the 5 railway bridges of theWu-Huang Intercity Railway’s Huangshi Section. The total demand is of 168pieces: 11 pieces of 24m, 157 pieces of 32m, 15 sets of costume templates, oneof which is generic template for both 24m and 32m.


Hang-Chang Passenger Line is one of themain backbone of China’s “Four vertical and four horizontal" PassengerNetwork----one part of Hu-Kun Railway. The length of this line is of 927km,design speed is 350km/h, using the whole set of 900 tons and 32m simplysupported box girder. The construction of Hang-Chang Passenger Line Xiaoshangirder field was undertaken by China Railway 17th Bureau, the sixthcompany. They made 310 sets of prefabricated girders and 16 sets of boxgirder’s templates.





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Q:Call for personal insurance, construction machinery insurance
Without the license, whether it belongs to the insurance exemption, I looked at the "Ping An, man - Shou" terms, as if there is no such article. It may be different for each company. The terms of the insurance shall prevail.
Q:Why do mechanical systems usually use nitrogen gas tanks instead of other gases in mechanical engineering?
Especially the cold elements produced in compression are very beneficial to the buffering system. The buffering pillars and tires on the airplane are all used nitrogen, which shows its advantages
Q:Material costs, machinery costs, management costs, labor costs accounted for the proportion of construction projects
5, travel expenses, property insurance, 6, 7, 8, engineering maintenance fees, sewage charges, 9, labor protection fees, inspection fees, 10 test, 11, outside the unit management fee, 12, finishing materials and sporadic freight, 13, material shortage and damage
Q:What are the common mechanical processing methods?
Lathe machining is part of the machining process. Lathe processing mainly uses turning tools to rotate the workpiece turning. Can also be used in the lathe drill, drill reamer taps Banya and knurling tools for the corresponding processing
Q:What mechanical keyboard is better for playing lol?
In the early days of the keyboard, mechanical keyboards appeared, and had experienced a period of prosperity, such as the mechanical keyboard that was installed on earlier servers. Followed quickly by the high quality and inexpensive film keyboard replaced mechanical keyboard but did not disappear, as the representative of high-end products to today, the characteristic of mechanical keyboard itself is not flooded, so when the mechanical keyboard has experienced prosperity and decline
Q:The 3 partners purchased the construction machinery, and one of them died during the construction. Will the other two compensate for it?
The compensation must be out of the question. Ask Party A or the total project contracting party have to buy "dangerous operation accident insurance, the insurance must be purchased in the construction cost, by engineering general contractor responsible person, do not need to pay.
Q:The difference between mechanical engineering and automation and electrical engineering
One is mechanical, one is electrical, mechanical engineering, the main course is mechanical principles, mechanics, materials, etc., graduation whereabouts is heavy industry, construction machinery, vehicles and other manufacturing industries, of course, access to other industries are also quite a lot
Q:Urgent! Is mechanical engineering major or special?
The mechanical engineering is not necessarily a special master, there may be a master, because some graduate students in Colleges and universities is in accordance with the level of subject enrollment, strictly speaking, is a mechanical engineering disciplines, including mechanical design and theory, mechanical and electronic engineering, mechanical manufacturing and automation of the three two subjects
Q:What kind of job is a mechanic in the end?
Mechanical engineer is a person who works in a mechanical engineering field and has some experience and level. Mechanical engineers are generally divided into three levels, Junior Mechanical Engineer, intermediate mechanical engineer, senior mechanical engineer. The mechanical engineer is usually referred to as the three level of mechanical engineers, mechanical engineers can also refer to the intermediate.
Q:What is the difference between the equipment manufacturing industry and the machine building industry?
In general, machinery manufacturing is a wide range of concepts, and equipment manufacturing is a big part of it. The concept and definition of equipment manufacturing industry: (1) the concept of equipment manufacturing industry. At present, other countries in the world, including international organizations, have not put forward the concept of equipment manufacturing industry. "Equipment manufacturing" concept can be said of China's unique

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