单跨双坡门式刚架设计
摘要:本设计为一72米单跨钢结构，设置A5级吊车。主要依据《钢结构设计规范》（GB50017—2003）和《门式刚架轻型房屋钢结构技术规程》GECS102:2002等国家规范，综合考虑设计工程的规模、跨度、高度及用途，依据“适用、经济、在可能条件下注意美观”的原则，对各组成部分的选型、选材、连接和经济性作了比较，最终选用单层门式钢架的结构方式。梁、柱、结点为刚性连接的门式钢架具有结构简洁、刚度良好、受力合理、使用空间大几施工方便等特点，便与工业化，商品化的制品生产，与轻型维护材料相配套的轻型钢结构框架体系已广泛应用于建筑结构中，本设计就是对轻型钢结构的实际工程进行建筑、结构设计与计算。主要对承重结构进行了内力分析和内力组合，在此基础上确定了梁截面，对梁柱作了弯剪压计算，验算其平面内外的稳定性；梁柱均采用Q345钢，焊接采用E50型焊条，柱脚刚性连接，梁与柱结点也刚性连接；另外特别注重了支撑设置、拉条设置，避免了一些常见的拉条设计错误。 关键词：轻型钢结构 门式钢架 内力分析
Abstract：This project is a 72m double-span steel structure,each cross sets up 10t beam crane.The project designed strictly complies with the stipulations of the “CODE FOR DESIGN OF STEEL STRUCTURES (GB50017-2003)”and “TECHNICAL SPECIFICATION FOR STEEL STRUCTURE OF
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LIGHT WEIGHT BUILDINGS WITH GABLED FRAMES(CECS 102:2002)”，and some others. Synthesize the scale of the consideration design engineering and across a principle for span and use ,according as “applying,economy,under the possible term attention beautifully”,Connecting method ,structure type and material of each part which consist of a light-weight steel villa are analysed, then choose the construction form that rigid and copular a type steel a ware for having construction Simple,just degree goodly,suffering dint reasonablely,using construction easy
to
space
bigly
and
starting
convenience
etc.characteristic,and
industrialisation,commercializing
produce,thinking with light maintenance material the kit the already extensive applying in the building construction inside,this design is to proceeds the building, construction design to the structural and actual engineering in light steel and calculation.The tractate
the
internal
force
analyzes
and
combines ,based on these analyses ;we can choose the section of beam and calumniation.Next,checking
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computations of stability calculation of the plane structure The steel beam and column employ Q345 carbon structural steel.Connection bolts are high strength bolt of friction type with behavioral grad Common bolts are rough type made byQ235-BF steel.rod for manual welding usually adopts E50 rigid connection apply to the column leg and the connection of column and beam adopts hind connection.The metope and roofage adopts the Bauble-decked colored polystyrene clamps the circuit board.Others,it is analysed that the forced state of the bracing system for a steel factor building under wind land,and the design of a bracing truss for a building with larger width.Avoid some errors in the design of brace,tension rod,and tension rod joints. Keywords: Lightweight steel structures; gabled frame; the internal force analyzes
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目 录
单跨双坡门式刚架设计 - - - - - - - - - - - - - - - - - - - （1） 摘要- - - - - - - - - - - - - - - - - - - - - - - - - - - - （1） Abstract- - - - - - - - - - - - - - - - - - - - - - - - （1） 目录- - - - - - - - - - - - - - - - - - - - - - - - - - （4） 1 设计资料- - - - - - - - - - - - - - - - - - - - - - - （8） 2 结构布置- - - - - - - - - - - - - - - - - - - - - - - -(8) 2.1 平面布置- - - - - - - - - - - - - - - - - - - - - - - (8) 2.1.1 柱网布置与定位轴线- - - - - - - - - - - - - - - - （8）
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2.1.2 柱间支撑布置- - - - - - - - - - - - - - - - - - （10） 2.1.3 屋盖支撑- - - - - - - - - - - - - - - - - - - - （10） 2.2 构件选型与截面尺寸估选- - - - - - - - - - - - - - - - （10） 3 钢架内力分析- - - - - - - - - - - - - - - - - - - - - （16） 3.1 计算简图- - - - - - - - - - - - - - - - - - - - - - （16） 3.2 荷载计算- - - - - - - - - - - - - - - - - - - - - - 3.2.1永久荷载- - - - - - - - - - - - - - - - - - - - - 3.2.2 屋面可变荷载- - - - - - - - - - - - - - - - - - 3.2.3 风荷载- - - - - - - - - - - - - - - - - - - - - 3.3 内力计算 - - - - - - - - - - - - - - - - - - - - - 3.3.1 永久荷载作用下内力分析- - - - - - - - - - - - - 3.3.2 屋面可变荷载作用下的内力分析 - - - - - - - - - - 3.3.3 左吹风荷载作用下的内力分析 - - - - - - - - - - - 3.3.4 右吹风荷载作用下的内力分析 - - - - - - - - - - - 4 内力组合- - - - - - - - - - - - - - - - - - - - - - - 5 钢架梁柱截面验算 - - - - - - - - - - - - - - - - - - - 5.1构件宽厚比验算- - - - - - - - - - - - - - - - - - - 5.1.1 截面梁翼缘- - - - - - - - - - - - - - - - - - - 5.1.2 柱翼缘- - - - - - - - - - - - - - - - - - - - - 5.1.3 梁腹板- - - - - - - - - - - - - - - - - - - - - 5.1.4 柱腹板- - - - - - - - - - - - - - - - - - - - - 5.2钢架梁的验算- - - - - - - - - - - - - - - - - - - -
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