The Research On Cooling Tower Of Latticed Of Double-Layer Hyperbolic Pyramid

In the paper,the latticed shell of double-layer hyperbolic pyramid is vertically applied to the structure of cooling tower and reinforced concrete planks with ribs are put up around the latticed shell,in accordance with situation that the most latticed shells are applied to lateral roof and cooling tower is put up by the reinforced concrete structure,a kind of new construction that includes the lower reinforced concrete structure and the upper latticed shell structure is established. Based on the characters of structure of the project,the structural style selection is given and analysis program of the latticed shell of double-layer hyperbolic pyramid cooling tower is programmed by the finite element theory and VB 6.0 advanced programming language,which includes of 15 programs and directly aims at cooler tower and gives the forcing property by the computing program of the latticed shell of double-layer hyperbolic developed. Analysis of static stress and temperature stress is given out by means of three dimensions members finite element and numerical analysis,optimum design of member sections is given out by full stress,analysis of geometric nonlinear is given out by nonlinear finite element,analysis of earthquake stress is given out by the mode decomposition response-spectrum method,the latticed shell cooling tower compared with the reinforced concrete structure finally.In the paper,research effects have very strong realistic value and development value,which include:the application provide the new thought for traditional big cross construction;the development way of the cooling tower is expanded;characteristic of anti-earthquake of the construction is good;the construction period of the structure is short by compared with the reinforced concrete construction,economic performance can bepresented as soon as possible,the season of construction don't be limited;the characteristic of anti-temperature stress is better than the reinforced concrete structure.The research of cooling tower of the latticed shell of double-layer hyperbolic pyramid has gotten some valuable conclusions and raises new research problem.