深圳大学学报（理工版）2013，Vol.30Issue(4)：365-371,7.DOI:10.3724/SP.J.1249.2013.04365
新型型钢混凝土大梁吊模体系设计机理研究
Study on the design mechanism of the new types of suspended formwork supporting system in constructing steel reinforced concrete girder
摘要
Abstract
Two new types of suspended formwork supporting system including self-bearing and compounding suspended formwork supporting system are provided.The new types of formwork supporting system have advantages such as clarity in the passing of force,savings in supporting material and convenience of construction.The decision principles of structures of the new types of formwork supporting system,force-passing mechanism and force analysis method are studied.Taking an actual project as an example,the effects are discussed regarding the space of suspended formwork,height,span and steel proportion of the steel beam used in the steel reinforced concrete girder on the maximum deflection and sectional stress of the steel beam during construction.This study offers a basis for optimizing the construction scheme of new types of suspended formwork supporting system in steel reinforced concrete girder.The results shows that the maximum deflection and stress of steel beam will be less affected by changing the space of suspended formwork.They tend to decrease with the increase of section height,to increase with the decrease of height-span ratio of beams,and tend to decrease with the increase of the steel proportion of steel reinforced concrete girders.The determined parameters can be used to guide the design of suspended formwork supporting system in practical work.关键词
型钢混凝土/大梁/自承式吊模体系/组合式吊模体系/吊模间距/高跨比/型钢含钢率Key words
steel reinforced concrete/ girder/ self-bearing suspended formwork/ compounding suspended formwork/ space of suspended formwork/ height-span ratio/ steel proportion of steel beam分类
建筑与水利引用本文复制引用
李扬,蔡健..新型型钢混凝土大梁吊模体系设计机理研究[J].深圳大学学报（理工版）,2013,30(4):365-371,7.基金项目
Project of State Key Laboratory of Subtropical Building Science (x2d1c7130210)亚热带建筑科学国家重点试验室自主研究课题资助项目(x2d1c7130210) （x2d1c7130210）
