本文選題：波紋腹板　切入點：起重機　出處：《武漢科技大學》2012年碩士論文

【摘要】：起重機械廣泛應用在各行各業(yè)中，它減輕了笨重的體力勞動，提高了作業(yè)效率，，是現(xiàn)代化工業(yè)生產(chǎn)中不可缺少的重要物流機械設備。主梁是橋式起重機的主要承載構件和組成部分，其重量和材料占整機的很大一部分。為了減少主梁的材料用量和降低制造成本，應該采用更為有利的結構形式。波紋腹板的出現(xiàn)，為新型主梁結構形式的設計提供了一種很好的參考樣式。波紋腹板是普通平直腹板的一種改進形式，在很多結構中可以代替普通平直腹板，如波紋腹板工字鋼梁結構和波紋腹板箱型梁結構。波紋腹板工字鋼梁被廣泛應用于房屋梁結 構中，而波紋腹板箱型梁則被越來越多的橋梁所采用。本文對波紋腹板在橋式起重機主梁中的應用進行了研究。首先，本文對波紋腹板工字鋼梁的彎曲特性進行了理論分析，歸納了波紋腹板工字鋼梁在簡支邊界條件下，在均布載荷和集中載荷下翼緣的彎曲正應力理論計算公式，并將彎 曲正應力理論計算值與有限元仿真結果進行比較，驗證了理論公式的準確性。其次，本文通過對工字鋼組合斷面主梁、H型鋼主梁和波紋腹板工字鋼主梁的性能進行了比較研究，從剛度、強度、穩(wěn)定性和材料使用等方面進行了綜合分析比較，驗證了波 紋腹板工字鋼結構在起重機主梁中的應用可行性。最后，本文研究了對波紋腹板箱型主梁的力學性能。在正軌和偏軌載荷下，分別對波紋腹板箱型主梁的抗彎特性、抗剪能力和穩(wěn)定性進行了有限元計算，并和平直腹板箱型主 梁進行了比較，明確了波紋腹板箱型主梁在偏軌箱型主梁中的優(yōu)勢。
[Abstract]:Hoisting machinery is widely used in all kinds of industries. It lightens heavy physical labor and improves working efficiency. It is an indispensable important logistics machinery equipment in modern industrial production.The main beam is the main bearing member and component of the bridge crane, and its weight and material account for a large part of the whole crane.In order to reduce the material consumption of the main beam and reduce the manufacturing cost, a more favorable structural form should be adopted.The appearance of corrugated web provides a good reference for the design of new type main beam structure.Corrugated web is an improved form of ordinary straight web, which can replace the common straight web in many structures, such as corrugated web I-beam structure and corrugated web box girder structure.Corrugated webs I-beam is widely used in building beam junctionThe corrugated web box girder is used by more and more bridges.The application of corrugated web in bridge crane girder is studied in this paper.Firstly, the bending characteristics of corrugated web I-beam are theoretically analyzed, and the theoretical formulas of bending normal stress of I-beam with corrugated web under uniform load and concentrated load are summarized.The accuracy of the theoretical formula is verified by comparing the calculated values of the curved normal stress theory with the finite element simulation results.Secondly, the properties of H-beam and corrugated web-plate I-beam are compared and compared in this paper, and the wave waves are verified by comprehensive analysis and comparison in the aspects of stiffness, strength, stability and material use.The application feasibility of I-shaped steel structure with web web in crane main girder.Finally, the mechanical properties of corrugated web box girder are studied.The bending characteristics, shear resistance and stability of corrugated web box box girder are calculated by finite element method under the load of track and rail, respectively, and compared with the straight web box main girder.The advantages of corrugated web box girder in the skew rail box girder are determined.
【學位授予單位】：武漢科技大學
【學位級別】：碩士
【學位授予年份】：2012
【分類號】：TH21

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