a-frame crane 中文意思是什麼
a-frame crane
解釋
人字形起重機-
For reinforcement concrete corbel with the shear span to depth ratio ( a / ho ) less than 1, has its performance of mechanics that is close to cantilever deep beams, it is an important kind of components in architectural structure which sustains roof trusses, brackets, tray " beams, frame " beams, wall " beams and crane " beams
剪跨比a h _ 0 1的短鋼筋混凝土牛腿，其受力性能接近於懸臂深梁，在建築結構中是支承屋架、屋面梁、托架、托架梁、框架梁、墻梁和吊車梁等的重要構件。 -
Based on practical project of inspecting, appraising and reinforcing a main heavy factory building, especially its steel crane girder system, of the second steel mill belonging to taiyuan steel & iron corporation, whose technology renovation leads to increase tonnage of many heavy cranes and vertical load of frame - bent structure, first the structure and its members were investigated, inspected, calculated and analyzed, and their reliability was appraised respectively and the strengthening projects or the measures to remedy were given. then, in accordance with the requirement to strengthen the girders under non - stop production, the feasibility of strengthening the crane girders by adding steel diagonal braces underneath the existing girders has been studied by inspecting and evaluating the strengthening effect of the crane girders and comparing with other reinforcing scheme
本文結合太鋼（集團）有限公司第二煉鋼廠主廠房由於生產工藝改造要求，加大多臺重型吊車噸位及bc跨（ 1 ） （ 8 ）軸線框排架各層豎向（設備）荷載后，對廠房結構，尤其鋼吊車梁系統進行檢測鑒定與加固設計的實際工程，首先對廠房結構進行了現場調研、技術檢查、測試以及內力和承載能力的計算與分析（考慮抗震） ，並根據檢測、計算與分析結果，對廠房結構、構件的可靠性進行了評定，並綜合提出鑒定結論和加固處理建議。
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