《钢结构安装》课件——3.6.3 多高层钢结构钢柱安装.pptxVIP

3.6.3多层及高层钢结构钢柱的安装

Installationofmulti-layerandhigh-risesteelstructuralsteelcolumns第一：钢柱安装的准备工作First:preparationforsteelcolumninstallation第二：钢柱的吊装Second:theliftingofsteelcolumns第三：钢柱的校正Third:thecorrectionofsteelcolumns第四：钢柱的固定Fourth:thefixingofsteelcolumns第五：钢柱的接长Fifth:thelengthofthesteelcolumn

一、钢柱安装的准备工作

First:preparationforsteelcolumninstallation钢柱多采用实腹式，实腹钢柱截面多为工字形、箱形、十字形、圆形。钢柱多采用焊接对接接长，也有用高强度螺栓连接接长的。劲性柱与混凝土采用熔焊栓钉连接。Thesteelcolumnmostlyadoptsthesolidbellytype,andthesectionofthesolidbellysteelcolumnismostlyI-shaped,box-shaped,cross-shapedandround.Steelcolumnsaremostlyweldedbuttjoints,andalsolongwithhigh-strengthbolts.Therigidcolumnandconcreteareconnectedbyfusionweldingbolts.十字形钢柱Cross-shapedsteelcolumns箱形钢柱Box-shapedsteelcolumns

1.现场柱基检查1.On-sitecolumnbaseinspection安装在钢筋混凝土基础上的钢柱，安装质量和工效与混凝土柱基和地脚螺栓的定位轴线、基础标高直接有关，必须会同设计、监理、施工、业主共同验收，合格后才可以进行钢柱连接Theinstallationqualityandergonomicsofthesteelcolumninstalledonthereinforcedconcretefoundationaredirectlyrelatedtothepositioningaxisandfoundationelevationoftheconcretecolumnfoundationandanchorbolts,andmustbejointlyacceptedbythedesign,supervision,constructionandowner,andthesteelcolumncanbeconnectedonlyafterqualifying采用螺栓连接钢结构和钢筋混凝土基础时，预埋螺栓应符合施工方案的规定：预埋螺栓标高偏差应在±5mm以内，定位轴线的偏差应在±2mm以内Whenboltingthesteelstructureandreinforcedconcretefoundation,theembeddedboltsshouldcomplywiththeprovisionsoftheconstructionplan:theelevationdeviationoftheembeddedboltshouldbewithin±5mm,andthedeviationofthepositioningaxisshouldbewithin±2mm应认真找好基础支承平面的标高，其垫放的垫铁应正确；二次灌浆工作应采用无收缩、微膨胀的水泥砂浆。避免因基础标高的超差而影响起重机梁的安装水平度Theelevationofthefoundationsupportplaneshouldbecarefullyfound,andthecushionironshouldbecorrect;Thesecondarygroutingworkshouldusecementmortarwithoutshrinkageandmicro-expansion.Avoidaffectingtheinstallationlevel