H型钢，是一种截面面积分配更加优化、强重比更加合理的经济断面型材，因其断面与英文字母“H”相同而得名。H型钢的两条外边内侧没有斜度，是平直的。这使得H型钢的焊接拼接比工字钢操作简单，单位重量的力学性能更好，可以节省大量的材料和施工时间。Hsteelisamoreefficientandeconomicalsectionwithhighsectionareadistribution,becauseitssectionisthesameastheEnglishletterH.ThetwosidesoftheHtypesteelh***enoslopeinsidetheinnerside,andtheyarestraight.ThismakestheweldingandsplicingofHsteelsimplerthanI-steel,bettermechanicalpropertiesperunitweight,andcans***ealotofmaterialandctructiontime.选择胶合板主要看其甲醛释放量和胶合强度。如果胶合板的胶合强度不好，容易散架。选择时注意胶合板的标称厚度与实际厚度是否相符。Thechoiceofplywoodmainlydependsonitsformaldehydeemissionandbondingstrength.Ifthegluingstrengthofplywoodisnotgood,itiseasytofallapart.Whenchoosing,payattentiontowhetherthenominalthicknessofplywoodisinlinewiththeactualthickness.)