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The Analytical Analysis of Internal Forces of the Steel Helix Stair

Author: AoTingZhi
Tutor: ZhouHongBin
School: Yanshan University
Course: Structural Engineering
Keywords: Steel structure spiral staircase Internal forces The theory of thin-walled structures Geometric parameters Design method
CLC: TU391
Type: Master's thesis
Year: 2010
Downloads: 73
Quote: 0
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Abstract


The staircase is one of the most functional elements of modern architecture , is in contact with the people building the most common, the most closely building components . The steel structure spiral staircase with concrete spiral staircase compared with the cross section is small , light structure , light and beautiful shape , more and more attention has been paid . Steel structure spiral staircase has applications in structural engineering , but little research of theoretical analysis and design method , steel spiral staircase design methods and the corresponding provisions of the relevant design specifications , so the theoretical analysis and the steel structure spiral staircase The design approach is important to study . Fixed at both ends of the steel spiral staircase , according to the basic theory of the theory of thin-walled structures and structural mechanics force of law , and to make some reasonable assumptions , a theoretical analysis of the steel spiral staircase model , deduced the formula for calculating internal forces , and then compiled into the program to calculate the internal forces of arbitrary cross-section . The results of this method with the ANSYS finite element calculation software to build the same model calculations demonstrate that such high accuracy of the calculation of the internal forces data . Geometric parameters by adjusting the height of the steel spiral staircase , the width of the stairs , the inner radius of the stairs and the inner and outer ring beam thickness , a systematic study of the steel structure spiral staircase internal force variation , and analysis of various factors on the performance of steel structure spiral staircase force the impact . According to a large number of calculation data , regression analysis, given the vertical shear and torque, the maximum value and the relationship of the various factors , the same time , given the influence coefficient of formula and the geometric parameters of the internal force maximum . These engineering steel structure spiral staircase design provides a theoretical basis and design methods .

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CLC: > Industrial Technology > Building Science > Building structure > Metal structures > Steel
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