Construction Technologies Of A Large Inclined Cabal-staged Glass Decorative Plate In Zhongguancun Software Park

For the realization of the national software industry base and developing high-tech industrial clusters aggregation effect and scale effect,create a level 100 billion software carrier and "China first,world class" software park,the east gate of the zhongguancun software park with German obermeyer design "CD" and "mouse" as building modelling,its modelling symbolism implies profound and far-reaching influence.Based on the optical disc hanging SuoGang structural engineering as an example,the spatial cable system and giant steel structure construction and a number of key technologies are studied,the main research contents include: elastic modulus control technology of CFG pile composite foundation;Long conical steel column and giant steel joist steel rings on optimization of structural design,production and installation of technology;Steel structure support frame;Spatial cable system tensioning technology;Suspension SuoGang structure maintenance technology of test and so on.Based on the above research and analysis on the key technology,formulate the corresponding technical scheme and measures,the internal and external ring beam of this project by double rung an integral type cables,maximum diameter of 84.8 m,by 4 root diameter of 3 m 3 degrees outward of steel column,using 24 root suspension cable disc hanging high in 20 m,the load through all four caps to CFG pile composite foundation,according to the geological survey report for the computation of soil conditions of four independent foundation by adjusting the pile length,strictly control the drilling speed and concrete filling coefficient,with each independent column base load test for testing,elastic modulus of composite foundation control within 2%;Using three axis roll machine processing arc plate,the computer aided scale lofting order,according to all kinds of steel box girder of arc processing steel mill achieve automatic welding of various arc arc beam with 300 t take weight off manny walker 4100 w(us)to complete the steel column hoisting crane,walking without ring type manny Joe walker 4100 type 181 t crawler cranes complete lifting of steel ring beam,16 hoisting unit adopts outer ring,internal ring eight hoisting unit installation,solved the difficult problem giant cd-rom installation of steel structure;Of 288 root spatial cable system USES hierarchical symmetric tensioning technology,synchronous control,synchronous tension,at the same time by the method of dynamic measurement,to detect the internal forces,the completed tensioning complete ShiGang structure from the scaffold,finish unloading;By PKPM software according to the temporary support stability calculation,the constant load coefficient of 1.35,48 * 3.0 mm steel pipe specifications according to the actual size calculation,the calculation length factor considering the influence of the jacking extended length;Suspension SuoGang structure should be tested periodically,adjust the internal forces and maintain,and strengthen the bare steel structure coating repair,ensure the structure safety.Through the implementation of the above technical scheme and technical guarantee measures,so as to realize the technically advanced and economically rational and the construction is convenient wait for a target,ensure the safety and quality of CD use for a long time,for the construction of the similar project has accumulated rich experience,its result has great theoretical significance and practical application value.technically advanced and economically rational and the construction is convenient wait for a target,ensure the safety and quality of CD use for a long time,the results have great theoretical significance and practical application value.