應用研究 2024年 第53卷 第21期
DOI: 10. 7672 / sgjs2024210022
結構健康監測在大跨度空間鋼桁架結構施工中的應用
黃亞男
作者簡介:
黃亞男,博士,E?mail:yananhuang@ 163. com作者單位:
上海同磊土木工程技術有限公司,上海 200433基金項目:
?上海市科委 2022 年度“科技創新行動計劃”社會發展科技攻關項目(22dz1201600)摘要:
大跨度空間鋼結構施工時通常經歷多次荷載傳遞路徑的轉換,跨徑的增大放大了荷載傳遞路徑變換、安裝誤差等因素對結構內力和變形的影響,施工過程對結構性能的影響不可忽略。依托昆山奧體中心足球場工程,對大跨度鋼屋蓋開展施工期間結構健康監測,實時反映結構在不同工況下的真實受力情況,并進行有限元模擬分析,研究施工過程對空間結構內力分布的影響。通過對實際監測數據與有限元分析結果進行對比,得到大跨度空間鋼結構施工應力分布差異,驗證結構健康監測的重要性。English:
The construction of large?span spatial steel structures usually experiences multiple load transferpaths. The increase of span magnifies the influence of load transfer path change, installation error andother factors on structural internal force and deformation. The influence of construction process onstructural performance cannot be ignored. Based on the football field of Kunshan Olympic Sports Center,the structural health monitoring of large?span steel roof during construction was carried out to reflect thereal stress of the structure under different working conditions in real time, and the finite elementsimulation analysis was carried out to study the influence of construction process on the internal forcedistribution of space structure. By comparing the actual monitoring data with the finite element analysisresults, the difference of construction stress distribution of large?span space steel structures is obtained,which can verify the importance of structural health monitoring.