结构工程师
結構工程師
결구공정사
Structural Engineers
2015年
4期
206-210
,共5页
钢筋桁架%自承式模板%可拆卸底模%有限元
鋼觔桁架%自承式模闆%可拆卸底模%有限元
강근항가%자승식모판%가탁사저모%유한원
steel-bars truss%self-supported formwork%removable bottom%finite element model
底模可拆卸自承式钢筋桁架模板体系是在现有普通自承式钢筋桁架模板的基础上，通过技术改造，将其原有的镀锌钢板底模换成可拆卸木模板而形成的新型模板体系，该新型模板具有经济实用、安全可靠、施工方便、节能环保等优点。为探究不同构造对模板体系整体受力性能的影响，通过 ANSYS建模对不同构造模板体系进行了施工阶段受力模拟，分析结果表明，底模可拆卸新型钢筋桁架模板刚度提高较大，适用于大跨水平结构的施工，吊杆节点构造对桁架承载力影响不大，但对其刚度有较大影响。
底模可拆卸自承式鋼觔桁架模闆體繫是在現有普通自承式鋼觔桁架模闆的基礎上，通過技術改造，將其原有的鍍鋅鋼闆底模換成可拆卸木模闆而形成的新型模闆體繫，該新型模闆具有經濟實用、安全可靠、施工方便、節能環保等優點。為探究不同構造對模闆體繫整體受力性能的影響，通過 ANSYS建模對不同構造模闆體繫進行瞭施工階段受力模擬，分析結果錶明，底模可拆卸新型鋼觔桁架模闆剛度提高較大，適用于大跨水平結構的施工，弔桿節點構造對桁架承載力影響不大，但對其剛度有較大影響。
저모가탁사자승식강근항가모판체계시재현유보통자승식강근항가모판적기출상，통과기술개조，장기원유적도자강판저모환성가탁사목모판이형성적신형모판체계，해신형모판구유경제실용、안전가고、시공방편、절능배보등우점。위탐구불동구조대모판체계정체수력성능적영향，통과 ANSYS건모대불동구조모판체계진행료시공계단수력모의，분석결과표명，저모가탁사신형강근항가모판강도제고교대，괄용우대과수평결구적시공，조간절점구조대항가승재력영향불대，단대기강도유교대영향。
Based on the existing ordinary steel-bars truss formwork,the new self-supported steel-bars truss formwork with removable bottom replaces the galvanized steel sheet with the wooden template.It is expected to be economic,safe,convenient and environmental friendly.Finite element modeling was used to simulate and analyze the formwork system in construction.Results show that the stiffness of the new formwork with a removable bottom shows better performances than the ordinary steel-bars truss formwork.It is suitable for construction of large span structures.The joint of hanger rod has little effect on the bearing capacity of formwork but it can affect the stiffness of formwork significantly.
