钢与混凝土组合梁设计方法研究-结构工程(钢结构)专业论文.docxVIP

摘要 摘要 浙江火学2005届颂l‘论文 氽波 钢与混凝土组合梁设计方法研究 摘 要 |=}|于钢结构设计规范GBS0017—2003对钢一混凝土组合梁的设计规定过于简 单，条文说明也很简单，导致目前国内工程技术人员对钢混凝士组合梁的设计 方法理解得不是很透彻。 本文在参阅国内外大量技术文献资料的基础上，系统的总结了简支梁和连续 梁的弹性没计、塑性设计方法，包含了自重组合和非自重组合、完全组合和非完 全组合的简支粱和连续组合梁。对各种组合梁详细地给出了设计方法，包括内力 分析模型，连续梁弯矩调幅的幅度与各种设计方法配套的钢板件宽厚比限值，挠 度计算方法，截面强度设计，负弯矩区钢梁下翼缘的稳定性，剪力件的承载力， 剪力件的分布，考虑滑移的折算刚度计算等。 最后本论文详细地对四个工程实例进行了计算，探讨了设计过程中可能遇到 的问题。 关键词：钢一混凝土组合梁连续梁简支梁挠度设计 摘要 摘要 浙江大学2005届硕士论文 金波 An Investigation on the Design of Steel-concrete Composite Beams Abstract Nowadays engineers not thoroughly understand the design of steel-coherete composite beams，because the regulation for steel-concrete composite beams in code for steel structure design(GB50017—2003)is too simple and somewhat obscure and the explanation is not clear enough。 After the scrutiny of large amount of papers in this field，an elastic method and plastic method for composite beams and continuous composite ones were systematically generalized in this paper,including simply supported beams and continuous composite beams witll self-weight composition，non self-weight composition，full and partial composition。Methods for the design of all kinds of composite beams are introduced in details，including the model for internal force analysis，the range of moment redistribution for continuous beams，the width—thickness ratio limit of steel slab members associated with all kinds of design methods，deflection calculation，strength design of cross—section，stability of lower flange of steel beams in negative moment area，strength of shear connectors， distribution of shear connectors and stiffness considering bond—slip etc。 Finally，the case of four projects were calculated in details and all kinds of problems that might were discussed。 Key words：steel-concrete composite beam，continuous beam，simply supposed beam，deflection，Design n 前言 前言 浙江大学2005届硕士沦文 金波 前言 由两种或两种以上建筑材料组成，并在荷载作用下具有整体工作性能的结构 称为组合结构。而钢一混凝土组合结构就是指用型钢或钢板焊成钢截面，在其上、 四周或内部浇灌混凝土，使混凝土与钢材形成整体共同受力的结构。 钢一混凝土组台结构具有节约钢材、充分利用材料性能、抗