郑州大学学报(工学版)
鄭州大學學報(工學版)
정주대학학보(공학판)
JOURNAL OF ZHENGZHOU UNIVERSITY(ENGINEERING SCIENCE)
2009年
4期
11-14
,共4页
PC棒%预应力%传递长度
PC棒%預應力%傳遞長度
PC봉%예응력%전체장도
helical prestressing reinforcement (PC steel bars)%prestressing%transmission length
螺旋肋钢丝(简称PC棒)是我国新研制开发的用于顸应力混凝土结构的新型钢丝.通过对28个先张法构件端部区域混凝土应变的量测,分析了PC棒预应力传递长度范围内混凝土应变和应力的变化规律以及主要影响因素,提出了PC棒预应力传递长度计算公式的建议,为PC棒的工程应用提供了依据.
螺鏇肋鋼絲(簡稱PC棒)是我國新研製開髮的用于頇應力混凝土結構的新型鋼絲.通過對28箇先張法構件耑部區域混凝土應變的量測,分析瞭PC棒預應力傳遞長度範圍內混凝土應變和應力的變化規律以及主要影響因素,提齣瞭PC棒預應力傳遞長度計算公式的建議,為PC棒的工程應用提供瞭依據.
라선륵강사(간칭PC봉)시아국신연제개발적용우한응력혼응토결구적신형강사.통과대28개선장법구건단부구역혼응토응변적량측,분석료PC봉예응력전체장도범위내혼응토응변화응력적변화규률이급주요영향인소,제출료PC봉예응력전체장도계산공식적건의,위PC봉적공정응용제공료의거.
This paper presents the results of transmission length tests on 28 pre-tensioned members made of prestressing reinforcement with helical rib (PC steel bars). The compressive strain and stress of concrete within the prestressing transmission zone for the PC steel bars of the members are analyzed, and the factors affecting the transmission length of PC steel bars in concrete are also discussed, and a formula for calculating the transmission length is suggested. The result can provlde reference for the application of PC steel bars in concrete structure.
