端支座负筋锚固长度计算,梁支座负筋长度计算公式

端支座负筋锚固长度计算,梁支座负筋长度计算公式

1.首跨钢筋计算1.上穿杆长度(upperlongbar1)=净跨穿杆长度+头尾支撑锚固值2.负杆端支撑负杆长度：第一行为Ln/3+端支撑锚固值；第二(1)、计算首跨钢筋1，上穿杆：上穿杆(upperlongbar1)length=clearspanlengthofthethrough-span+ headandtailAnchoragevalueofendsupport2.Lengthofnegativereinforcementofendsupport:thefirstrowisLn/3+anchorvalueofendsupport;

钢筋编号直径(mm)计算公式冲裁长度(mm)单位编号1182900-500-25+(1.5×31×18-500)-2×18267612182900-500-25-630+(1.5×31×18-500)-2×18204613计算端支负钢筋长度ofendsupport负强化（ firstrow)=netspanlength/3supportanchoragelengthEndssupportnegativereinforcementlength(Thesecondrow)=netspanlength/4supportanchoragelength4.Calculationofcantilevermid-spansteelbarlength=firstspannetspanlength/3

不同钢筋锚固长度的计算公式如下：1.上穿杆长度(upperthroughlongbar1)=上穿杆净跨长度+头尾支撑锚固值2.负杆端支撑和负杆端支撑长度：首排为Ln/3+端支撑1.首跨钢筋计算1.上穿杆:lengthofupperthrough-bar(upperlongbar1)=clearspanlengthofffull-span+anchoragevalueofheadandtailsupports2.NegativeribsofendsupportsLengthofnegativeribsofendsupports:thefirstrowisLn/ 3+endsupportanchoragevalue;第二行是Ln/4+endsupportanchoragevalue

∩▽∩ A.负筋长度=伸入支架的锚固长度+伸入跨度的网长B.伸入跨度的网长占跨度的1/3C.伸入跨度的网长占跨度的1/3D.伸入支座的锚固长度应判断是弯曲的还是直的。panreinforcement1.Thelengthoftheupperthroughreinforcement(theupperthroughlongreeninforcement1)=theclearspanlengthofthethroughspan+Anchoragevalueofheadandtailsupports2.Negativetendonlengthofendsupport:thefirstrowisLn/3+anchorvalueofendsupport;thesecondrowisLn/4+anchorvalueofendsupports