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</h4> <p>网架公司и钢材性选用要求</p> <table width="600" border="1" cellspacing="0" bordercolor="#000000"> <tbody> <tr> <td>序</td> <td>载特征</td> <td>节点类型与嵯ɛ状?/td> <td>工作环境温度</td> <td>要求能项目</td> <td>使用и钢编</td> </tr> <tr> <td>1</td> <td rowspan="4">ؿ嵯顊载或间接动ɛ荷?/td> <td rowspan="2">卿节点、单、双向嵯ɛ状?/td> <td>-20?/td> <td>屈服强度、抗拉强度、伸长率、断Ǣ收缩率、碳用量、常温冲击功Akv≥27J</td> <td>ZG230-450</td> </tr> <tr> <td>2</td> <td>低于或等?20?/td> <td>同第一项,?℃冲击功Akv≥27J</td> <td rowspan="2">ZG275,G20Mn5N</td> </tr> <tr> <td>3</td> <td rowspan="2">多管节点、三向复杂嵯ɛ状?/td> <td>-20?/td> <td>同第一?/td> </tr> <tr> <td>4</td> <td>低于或等?20?/td> <td>同第二项</td> <td>G20Mn5N</td> </tr> <tr> <td>5</td> <td rowspan="4">ؿ嵯直接ɨ力载?-9度设ֲ的地震</td> <td rowspan="2">卿节点、单、双向嵯ɛ状?/td> <td>-20?/td> <td>同第二项</td> <td>?/3?/td> </tr> <tr> <td>6</td> <td>低于或等?20?/td> <td>同第一项,?20℃冲击功Akv≥27J</td> <td>ZG275-485<br /> G17Mn5QT<br /> G20Mn5N</td> </tr> <tr> <td>7</td> <td rowspan="2">多管节点、三向复杂嵯ɛ状?/td> <td>-20?/td> <td>同第二项</td> <td rowspan="2">G17Mn5Qt<br /> G20Mn5N<br /> G20Mn5qt</td> </tr> <tr> <td>8</td> <td>低于或等?20?/td> <td>同第六项,但9度地霴Ѯֲ时-40℃冲击功Akv≥27J</td> </tr> </tbody> </table> <ul class="sxp"> <li><a href="/xwzx/xwzxn/329.html">¦? 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