- 摘 要
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(1 河北北方綠野建筑設(shè)計有限公司， 石家莊 050011； 2 天津大學(xué)建筑工程學(xué)院， 天津 300072)
［摘要］對河北師范大學(xué)新建體育樓項目的結(jié)構(gòu)設(shè)計進(jìn)行了整體介紹，并對位于該建筑2層的40m大跨度樓蓋結(jié)構(gòu)設(shè)計的全過程進(jìn)行了詳細(xì)介紹。工程中首次將弦支鋼-混凝土組合梁應(yīng)用于大跨度樓蓋結(jié)構(gòu)中，通過計算機仿真模擬分析，以及對該結(jié)構(gòu)不同施工階段時主要受力構(gòu)件的內(nèi)力和豎向變形值的實時監(jiān)測，對該結(jié)構(gòu)形式實際工程應(yīng)用中的效果進(jìn)行了檢驗，驗證了設(shè)計方法的合理性和工程應(yīng)用的可靠性。此外，還對弦支鋼-混凝土組合梁應(yīng)用于大跨度樓蓋結(jié)構(gòu)中的舒適度問題展開了深入研究，通過進(jìn)行多種人致振動工況的有限元模擬分析，研究結(jié)構(gòu)在各種激振工況下的舒適度反應(yīng)，并采用調(diào)諧質(zhì)量阻尼器系統(tǒng)（TMD）達(dá)到減振的目的。同時通過對設(shè)置減振系統(tǒng)前后相同激振工況下舒適度問題的對比模擬分析及現(xiàn)場測試，進(jìn)一步驗證該方法的有效性。
［關(guān)鍵詞］弦支鋼-混凝土組合梁； 大跨度樓蓋； 舒適度； TMD減振設(shè)計； 模擬分析； 現(xiàn)場測試
中圖分類號：TU398+.9文獻(xiàn)標(biāo)識碼：A文章編號：1002-848X(2016)13-0030-08
Design and application of cable supported steel-concrete composite beam in large-span floor structures
Li Yong1， Zhang Lixin1， Chen Zhihua2， Zhang Bin1
(1 Hebei N.Green Architectural Design Ltd.， Shijiazhuang 050011， China；2 School of Civil Engineering， Tianjin University， Tianjin 300072， China)
Abstract:The structural design of Hebei Normal University Gymnasium Project was introduced in entirety, and the whole process of structural design of the 40 meters large-span floor which located in the second floor of the building was introduced in details. Cable supported steel-concrete beam was applied in large-span floor structure for the first time in engineering. The performance of the structural form in actual application was examined through computer analogue simulation analysis and the real-time monitoring of internal force values and vertical deformation values of main components at different construction stages, which verified the rationality of the design method and the reliability of the engineering application. In addition, the comfort degree problem brought by cable supported steel-concrete beam structure applied in large-span floor structure was studied deeply. The comfort degree reactions of the structure under different vibration working conditions were studied through finite element simulation analysis of varieties of human-induced vibration working conditions. And the tuned mass damper (TMD) system was used to reduce vibration. Through comparing simulation analysis and field measurement of the comfort degree problem before and after installing vibration reduction system under the same vibration working condition, the effectiveness of the proposed method was further verified.
Keywords:cable supported steel-concrete beam structure； large-span floor； comfort degree； vibration reduction design of TMD； simulation analysis； field measurement
作者簡介：李勇，碩士，高級工程師，一級注冊結(jié)構(gòu)工程師，注冊土木工程師（巖土），Email:19161522@qq.com。
