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发明公开
CN1877038A 大跨度周边简支承体内折线预应力钢网架结构 失效 - 权利终止

大跨度周边简支承体内折线预应力钢网架结构
摘要：
本发明公开了一种大跨度周边简支承体内折线预应力钢网架结构，它包括钢网架(1)和预应力钢索(2)，钢网架(1)由正放四角锥连接构成，在钢网架(1)体内的斜索段上设置有转向装置(3)，在钢网架(1)的中部下弦节点上设置有传力装置(4)，预应力钢索(2)穿过传力装置(4)和转向装置(3)后其两端分别固定在钢网架(1)的两个上承式支座节点(11)上；本发明具有施工方便、预应力效应显著、受力性能好、不增加建筑物室内冗余空间、造价低等特点，其建筑综合造价可下降20～25％。
摘要（英）：

The invention relates to a fold line pre-stress steel net support of large span periphery support, which comprises steel net support (1) and pre-stress steel cable (2). Wherein, the steel net support (1) is formed by connected four-angle tapers; the incline cable of steel net support (1) is arranged with steering device (3); the low arc node of middle part of steel net support (1) is arranged with force sensor (4); the two ends of pre-stress steel cable (2) through the force sensor (4) and steering device (3) are fixed to two upper support base node (10) of steel net support (1). The invention has better pre-stress effect, better bearing ability and lower cost that reduced 20-25%.

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