Recently, by the ChineseThe steel structureAssociation zhongjian steel structure of tall buildingThe constructionTechnical assessments to be held in Beijing

Recently, by the ChineseThe steel structureAssociation zhongjian steel structure of tall buildingThe constructionTechnical assessments to be held in Beijing. The super long, super thick steel plate shear wall deformation control key technology ", "high (300 meters) cantilever truss Steel Structure Project The constructionKey technology "and" ultra-high 3-d recursive space grid structure matching, dynamic correction technology reached the international leading level, identified. The appraisal committee members by the Chinese academy of engineering Ma Kejian, Xu Rong strong foreign academician, eight well-known in the industryexpertsComposition.

The super long, super thick steel plate shear wall deformation control key technology of super long, super thick steel plate shear walls is proposed welding process and control parameters, key technology formed a complete set of welding construction, the effective control of welding deformation, satisfying the requirements of relevant national standard. Low temperature under complex environment is established to control welding residual stress of the steel plate shear wall construction method, effectively reduce the welding deformation and residual stress. Developed & other; Plate + constraints support & throughout; Double control method, and optimization of construction sequence, constraints, position and welding deformation control and the residual stress reduction techniques, effective control of the steel plate shear wall outside welding deformation, and meet the specification requirements. For tall building in the super long, super thick steel plate shear wall, proposed the welding and block new connection method of high strength bolt connection, effectively solved the welding deformation is difficult to control, a large quantity of welding problem, improve the construction efficiency.

"Tall (300 meters) steel frame - core structure key techniques for construction of cantilever truss created & other; Steel plate + delay connection & throughout; Complete sets of technology for high-rise buildings & other; K” Type cantilever truss delay connection provides a practical and effective new method. Top mould for high-rise steel frame - core structure with cantilever truss installation easy to conflict problem, put forward the top die and cantilever truss dynamic coordination technology. Use & other; Bulk, high layered assembly & throughout; And & other Alternate replacement of two lifting point, rotating shift & throughout; Lifting process, to ensure that the top die barrier-free rising cases cantilever truss can normal installation, improve the efficiency of the overall construction.

3-d recursive super-tall space grid structure matching, dynamic correction technology, three dimensional complex node recursive matching technology is put forward, and relevant computer program is developed to simplify the complex node construction site, processing factory join acceptance the complex problem, improve the precision and efficiency of the acceptance. In view of the large and complex giant grid structure, and puts forward the dynamic correction technology, through the computer & other; Grading pre installed throughout & simulation; And & otherdesign, production and installation of dynamic circulation throughout linkage adjustment &; Method, has realized the super-tall grid structure construction process of the dynamic control in the production and installation deviation, solved the problem of the cumulative error than rules. Put forward & other; Suspension platform & throughout; Construction technology and improve the work efficiency, ensure the operation platform, personnel safety.

Three scientific and technological achievements, to overcome the more than 10 international steel structure construction problems, including steel plate shear wall welding and high strength bolt connection of new connection technology, high-rise buildings & Steel Structure Project http://www.jingtabuilding.com/ts.html; K” Type cantilever truss & other; Steel plate + delay connection & throughout; Complete installation technology, computer & other; Grading pre installed throughout & simulation; And & other Design, production and installation of dynamic cycle linkage adjustment & throughout; Technology to fill the gaps at home and abroad. To further consolidate the zhongjian steel core technology advantage.