8土木钢结构课程设计任务书.pdf

1/8 四川理工学院课程设计钢结构课程设计学生：学号：专业：班级：指导教师：四川理工学院建筑工程学院二 O 一一年十月2/8 钢 结 构 课 程 设 计 任 务 书根据下面的资料设计某单跨厂房的钢屋盖。一、设计题目一）三角形屋架1、设计资料1）该车间无悬挂式起重机、无天窗、无振动。2）钢屋架支承在钢筋混凝土柱顶，钢材采用Q235，混凝土等级为C25。3）对于三角形屋架，屋面采用波形石棉瓦，槽钢檩条。4）车间长度为240m，柱距为6m。车间跨度为L 18m、21m、24m、27m、30m、33m。屋面坡度为1：2.5.5）柱网布置图见附图1。2、屋架屋面做法及荷载取值标准值）永久荷载 kN m2）：波形石棉瓦自重0.20；檩条及拉条自重0.20；保温木丝板重0.25；屋架及支撑重0.120.011跨度）；可变荷载 kNm2）：雪荷载 10 组）：北京0.40；南宁0；上海 0.20；重庆0；沈阳0.50；拉萨 0.15；基本风压 梯形屋架1、设计资料1）该车间无悬式挂起重机、无天窗、无振动。2）钢屋架支承在钢筋混凝土柱顶，学号为单号的同学用Q235 钢，焊条为E43 型；双号的同学用Q345钢，焊条为E50 型，混凝土等级为C25。3）对于梯形屋架，屋面采用1.5mx6.0m 的预应力钢筋混凝土大型屋面板屋面板不作支撑用）。4）车间长度为24Om，柱距为6m。车间跨度根据题号选择。5）柱网布置图见附图1。2、荷载屋架及支撑自重0.120.011跨度）；其余荷载见附表1附表 3。3、设计题号设计题号见附表5.二、设计内容1、根据题号选择屋架形式并确定屋架各杆件尺寸。2、选择钢材及焊接材料，并明确提出对保证工程的要求；3、作屋盖结构及支撑的布置图；4、对钢屋架进行内力、檩条设计有檩屋盖）、杆件截面尺寸的计算；设计一个下弦节点、一个上弦节点、支座节点、屋脊节点及下弦中央节点。5、绘制运送单元的施工图，用铅笔绘制白纸图。设计的节点应尺寸齐备，满足构造要求。三、设计要求文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R33/8 1、计算书须用钢笔书写，插图应用铅笔按一定比例绘制，做到眉目清晰，文图配合；2、图纸应符合房屋建筑制图统一标准GB/T 50001 2001）和建筑结构制图标准GB/T 50105 2001）的要求；3、完成后,图纸应叠成计算书一般大小，与计算书装订一起后上交。四、设计时间集中设计时间为一周。截面及节点设计2 天绘制施工图2.5 天计算书整理与施工图修正0.5 天五、参考文献1、钢结构设计规范GB50017-2003）.北京：中国计划出版社，2003 2、建筑结构荷载规范GB500092001）3、建筑结构可靠度设计统一标准GB500682001）4、建筑结构制图标准GB T501012001）5、建筑结构设计术语和符号标准GB/T50083 97）6、钢结构设计手册，罗邦富等，中国建筑工业出版社，1988.7、钢结构.，魏明钟，武汉理工大学出版社，2003 8、钢结构，戴国欣，武汉理工大学出版社，2002 附录：附图 1 柱网布置图文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R34/8 附表 1 荷载类型荷载类型序号荷载名称重力 标准值）/KN/m2）荷载分项系数）永久荷载A 1 预应力钢筋混凝土屋面板包括嵌缝）1.40.4）1.2 2 SBS改性沥青防水卷材0.4 3 找平层 2cm 厚）0.4 4 保温层 40cm）0.25 5 保温层 80cm）0.5 6 保温层 120cm）0.7 可变荷载B a 活载 1）0.5 1.4 b 作用在屋架下弦节点上的设备1 1.0 2 0.7 c 积灰荷载加积灰荷载1.5 附表 2 永久荷载分类情况类型考虑荷载甲A1 A2 A3 乙A1 A2 A3 A4 丙A1 A2 A3 A5 丁A1 A2 A3 A6 附表 3 可变荷载分类情况类型考虑荷载A Ba Bb1 B Bb2 Bc C Ba Bb2 D Bb1 Bc 附表 4 三角形屋架课程设计题号建筑地点北京南宁上海重庆沈阳拉萨跨度18m 1 2 3 4 5 6 21m 7 8 9 10 11 12 24m 13 14 15 16 17 18 27m 19 20 21 22 23 24 30m 25 26 27 28 29 30 33m 31 32 33 34 35 36 附表 5 梯形屋架课程设计题号坡度1：10 1：16 基本雪压基本风压文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R35/8 荷载屋架跨度屋架跨度KN/m2）KN/m2）永久可变24m 27m 30m 33m 24m 27m 30m 33m 甲A 37 38 39 40 41 42 43 44 0.35 0.65 B 45 46 47 48 49 50 51 52 0.45 0.55 C 53 54 55 56 57 58 59 60 0.3 0.45 D 61 62 63 64 65 66 67 68 0.2 0.60 乙A 69 70 71 72 73 74 75 76 0.6 0.35 B 77 78 79 80 81 82 83 84 0.40 0.45 C 85 86 87 88 89 90 91 92 0 0.35 D 93 94 95 96 97 98 99 100 0.20 0.55 丙A 101 102 103 104 105 106 107 108 0 0.40 B 109 110 111 112 113 114 115 116 0.50 0.55 C 117 118 119 120 121 122 123 124 0.15 0.30 D 125 126 127 128 129 130 131 132 0.25 0.45 丁A 133 134 135 136 137 138 139 140 0.35 0.40 B 141 142 143 144 145 146 147 148 0.4 0.55 C 149 150 151 152 153 154 155 156 0.45 0.45 D 157 158 159 160 161 162 163 164 0.2 0.35 说明：每个同学的具体题号由各班的学习委员分配。土木 08113 人）：的题号为1 4号和 3745 号；土木 08227 人）：的题号为5 12 号和 4664 号；土木 08310 人）：的题号为1317 号和 6569 号；土木 08418 人）：的题号为1823 号和 6071 号。土木 0858 人）：的题号为1921 号和 7276 号。土木 08618 人）：的题号为2227 号和 7788 号。土木 08718 人）：的题号为2832 号和 89101号。土木 088。下弦横向水平支撑，位置应与上弦横向支撑在同一柱间。垂直支撑，位置在上、下弦横向支撑同一柱间内，并根据屋架的跨度分别在屋架两端部和跨中的竖直平面内设置。系杆，在设置垂直支撑的竖直平面的上、下弦杆位置通长设置。3 荷载计算及荷载组合3.1 恒载根据屋盖的构造层次，分别计算其自重kN/m2），最后总计在一起，即得屋盖的恒载。屋架及支撑自重kN/m2），按经验公式qk=0.12+0.011 跨度 单位：m）估算，按水平投影面积计算。3.2 活载屋面荷载与雪荷载不会同时出现，计算时，取较大的荷载标准值进行计算。根据恒载、活 载 的 计 算 结 果 以 及 屋 架 节 点 的 受 荷 面 积 即 可 求 得 屋 架 节 点 荷 载。3.3荷载组合屋架内力根据其使用过程中可能同时作用的荷载,按最不利的原则组合。三角形屋架只考虑第一种组合。荷载组合一般考虑以下二种情况：1）全跨永久荷载+全跨可变荷载；2）全跨永久荷载+半跨可变荷载。4 内力计算 内力计算可以用图解法或数解法计算各杆的轴向力 N 5 檩条设计由于檩条受力不大，一般是先选择檩条的型号再按下面的公式进行验算。5 杆件截面设计5.1 轴心受拉杆件1）用公式N/An f 计算出所需的净截面面积。2）按所需的净截面面积在型钢表中找到合适的截面一般为两个角钢组成的截面）。3）截面选定后，用选定的截面，验算强度和长细比。杆件容许长细比，受压构件 150，受拉构件 3505.2 轴心受压杆件1）假定长细比，查出值，计算所需截面面积和所需的最小回转半径。即：，。2）根据 A、ix、iy，选定型钢 角钢）规格。3）按选定的截面验算杆件的稳定性和长细比。对于有较大截面削弱的杆件，尚应验算截面的强度。5.3 压弯构件采用先假定截面，然后进行平面内、外的稳定性验算及长细比计算，必要时进行强度计算，不行再调整直到符合要求为止。6 节点设计6.1 下弦中间节点1）确定节点板轮廓尺寸文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R37/8 节点上的下弦杆、斜腹杆、竖杆的轴线应交于一点。计算时先计算斜腹杆、竖杆与节点板的连接焊缝长度，焊缝可采用侧面直角角焊缝，也可采用L 形和三面围焊。根据计算出所需焊缝长度定出能容纳这些焊缝长度的节点板的边缘点。将这些连成线并考虑下弦下边缘伸出10mm，定出合理的节点板的外围尺寸。2）焊缝计算节点板尺寸定下后，节点无集中荷载时，即可验算下弦与节点板的连接焊缝强度。此时焊缝承担内力为下弦节点两侧杆件轴力：N=N2N1或 15%Nmax，取二者的大值。6.2 上弦节点1）确定节点板尺寸2）计算上弦与节点板的焊缝长度。当无动力荷载时，上弦节点荷载作用下：，节点两侧轴力差N作用下，对于等肢角钢而言，肢背焊缝的剪应力：，肢尖焊缝的剪应力：，。故6.3 支座节点1）根据腹杆与下弦杆所需焊缝长度定出节点板的外围尺寸。注意下弦杆下边缘的距离较其它节点为大，一般不少于下弦水平肢长或130mm。且支座节点除节点板外，还有加肋和底板。2）底板计算1）底板面积按下式计算：，考虑到锚栓孔的需要，通常要求底板的短边尺寸不得小于200mm。2）底板厚度：t=对于跨度大于18m的屋架，底板厚度t 20mm。3）加劲肋与节点板的连接焊缝的计算：加劲肋承担的内力:，。，。仅承受静荷载时：。其中：工地拼接）文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 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屋架施工图的绘制1）图纸的左上角绘一屋架简图。图中注上屋架的主要外形尺寸，在屋架的一半杆件上注意出杆件轴线长度，另一半杆件注上设计内力，以便校核。梯形屋架跨度大于或等于24m时，制作时应起拱约为跨度的1/500，并注在屋架简图上。2）屋架详图部分，应绘制屋架正面图，上下弦杆的平面图，必要数量的侧面图和剖面图，以及零件的大样图。3）比例：屋架杆件的轴线长度一般用1:201:30；杆件和零件常用1:5 1:15 的比例绘制。4）施工图中，应特别注意把所有杆件和零件的定位尺寸注全。腹杆应注出杆端至节点中心的距离。节点板应注出上、下两边至弦杆轴线的距离，以及左右两边至通过节点中心线的垂线的距离。5）施工图中应列出材料表。把所有杆件和零件的编号、规格尺寸、数量区别正、反）、重量都依次填中，并算出整榀屋架的重量。6）设计说明：包括所选用的钢号Q235 B.F）焊条 E43xx）和质量要求及加工精度，热处理及施工要求：图中应注明的焊缝及螺栓尺寸、油漆包扩底漆、面漆和防火漆）运输要求以及其他应说明的内容。文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 ZL8G8L8V4R3文档编码:CG7L8Y9O1W1 HV8O4F1C3R1 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