施工技术
施工技術
시공기술
CONSTRUCTION TECHNOLOGY
2014年
9期
74-80
,共7页
索结构%空间结构%自平衡性%拓扑%张拉
索結構%空間結構%自平衡性%拓撲%張拉
색결구%공간결구%자평형성%탁복%장랍
cables%spatial structures%self-equilibrium%topology%tension
大跨度环形空间索结构是一种新型结构,具有轻质、高效、自平衡性等优点。对结构特点进行分析,根据结构拓扑构成对结构进行分类;在此基础上,分析了不同结构拓扑形式下预应力的各种建立方式,并结合结构初始状态下的索力分布、施工便捷性、经济性等指出各种成型方式的优缺点,提出了相应合理的结构成型方式。最后,给出结构张拉成型方式的具体工程应用。
大跨度環形空間索結構是一種新型結構,具有輕質、高效、自平衡性等優點。對結構特點進行分析,根據結構拓撲構成對結構進行分類;在此基礎上,分析瞭不同結構拓撲形式下預應力的各種建立方式,併結閤結構初始狀態下的索力分佈、施工便捷性、經濟性等指齣各種成型方式的優缺點,提齣瞭相應閤理的結構成型方式。最後,給齣結構張拉成型方式的具體工程應用。
대과도배형공간색결구시일충신형결구,구유경질、고효、자평형성등우점。대결구특점진행분석,근거결구탁복구성대결구진행분류;재차기출상,분석료불동결구탁복형식하예응력적각충건립방식,병결합결구초시상태하적색력분포、시공편첩성、경제성등지출각충성형방식적우결점,제출료상응합리적결구성형방식。최후,급출결구장랍성형방식적구체공정응용。
Large-span annular cable structure is a new type of structure, which has advantages such as lightness, effectiveness and self-equilibrium. The structure is analyzed by its features and classified by topology . Based on this, a few methods on building prestressing forces under different structure topologies are analyzed. The merits and drawbacks of different methods are pointed out after considering the cable force distribution under the original statement of the structure, construction convenience and economical efficiency. And the proper methods are put forward. Finally, specific project applications of the methods on structure shape-forming are listed.