海洋馆地上圆弧形表演池缓粘结预应力技术的应用
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摘要
针对海洋馆地上圆弧形表演池的预应力进行合理的施工设计时,采用当前方法进行海洋馆地上圆弧形表演池设计时,难以计算出海洋馆地上圆弧形表演池在正常使用极限状态下的挠度,存在预应力筋锈蚀、断裂的问题。提出基于缓粘结预应力技术的海洋馆地上圆弧形表演池设计方法。在介绍缓粘结预应力技术在海洋馆地上圆弧形表演池应用后,计算出预应力筋与缓凝砂浆之间存在的缓粘结预应力损失以及粘结预应力的抗裂缝强度,对海洋馆地上圆弧形表演池缓粘结预应力混凝土的施工方法进行阐述,并对缓凝胶粘剂固化时间的控制和张拉时间的控制进行总结,指出缓粘结预应力技术施工过程中应该注意的事项,实验结果表明,所提方法能够有效提高海洋馆地上圆弧形表演池的防腐及抗裂缝能力,同时为缓粘结预应力的工程施工提供了重要参考价值。
To design reasonable construction according to the marine museum on the performance of prestressed circular pool, using the method of the marine museum on the arc performance pool design, it is difficult to calculate the deflection of the marine museum on the arc performance pool in the normal limit condition, existence of pre stress reinforcement corrosion and fracture problems. This paper presents the design method of the circular arc shaped pool on the sea floor based on the slow bonding prestressed technology. Retard bonded prestressed technique in marine museum on the arc performance application pool after the introduction, the calculated bond retarded prestressed loss and anti crack strength of Unbonded Prestress between prestressed reinforcement and retarding mortar and construction method of the marine museum on the arc performance pool of retard bonded prestressed concrete are expounded, and the retarding adhesive curing time control and tension control pull time were summarized, pointed out should pay attention to the retard bonded prestressing technique in the construction process, the experimental results show that the proposed method can effectively improve the marine museum preservation arc performance pool and anti crack ability, and provides important reference value for the construction of corrosion bonded prestressed.
To design reasonable construction according to the marine museum on the performance of prestressed circular pool, using the method of the marine museum on the arc performance pool design, it is difficult to calculate the deflection of the marine museum on the arc performance pool in the normal limit condition, existence of pre stress reinforcement corrosion and fracture problems. This paper presents the design method of the circular arc shaped pool on the sea floor based on the slow bonding prestressed technology. Retard bonded prestressed technique in marine museum on the arc performance application pool after the introduction, the calculated bond retarded prestressed loss and anti crack strength of Unbonded Prestress between prestressed reinforcement and retarding mortar and construction method of the marine museum on the arc performance pool of retard bonded prestressed concrete are expounded, and the retarding adhesive curing time control and tension control pull time were summarized, pointed out should pay attention to the retard bonded prestressing technique in the construction process, the experimental results show that the proposed method can effectively improve the marine museum preservation arc performance pool and anti crack ability, and provides important reference value for the construction of corrosion bonded prestressed.
引文
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[10]牛萍萍.基于Lab VIEW设计的建筑压阻式压力传感器校准系统的设计与实现[J].电子设计工程,2017,25(2):178-180.
[11]廖亚雄,陈修和,张玉斌,等.考虑纵坡与制动效应的钢桥面铺装粘结层剪应力响应特性[J].长沙理工大学学报(自然科学版),2016,13(2):8-14.
[2]王占飞,曹少朋,徐岩,等.缓粘结预应力钢筋摩擦系数试验[J].沈阳工业大学学报,2016,38(3):350-354.
[3]张宏强,王文喜,董晨,等.缓黏结预应力钢绞线研究及其在CFRD中的应用[J].金属制品,2016,42(2):24-29.
[4]李琳琳,韩友强,李峰,等.大跨度现浇缓黏结预应力空心楼板关键技术研究[J].施工技术,2015,44(1):120-123.
[5]王强,马玥,王占飞,等.拆模工序对沈阳文化艺术中心音乐厅缓黏结预应力结构内力变形的影响[J].结构工程师,2015,31(5):171-177.
[6]陈志刚,李骏嵘,焦俭.某学校网球中心单跨有粘结预应力框架的结构设计[J].浙江建筑,2016,33(9):11-16.
[7]雷兴勇,肖贤炎.无粘结预应力钢棒施工技术介绍[J].公路交通技术,2016,32(3):89-94.
[8]贾巧燕,邹晓琴.高负载铁路桥梁体外预应力的受力情况分析研究[J].科技通报,2016,32(7):193-197.
[9]赵少伟,张晓彬,郭娇,等.有粘结预应力CFRP板加固混凝土梁预应力损失研究[J].工程抗震与加固改造,2016,38(5):126-130.
[10]牛萍萍.基于Lab VIEW设计的建筑压阻式压力传感器校准系统的设计与实现[J].电子设计工程,2017,25(2):178-180.
[11]廖亚雄,陈修和,张玉斌,等.考虑纵坡与制动效应的钢桥面铺装粘结层剪应力响应特性[J].长沙理工大学学报(自然科学版),2016,13(2):8-14.