弧门型钢混凝土闸墩内型钢布置形式研究.pdf

水利水电技术第48卷2017年第7期
瓢门型钢泥凝士阐墩内型钢布置形式研究
张小飞,胡瑞昌',成曦,骆文广2
(1.广西大学土木建筑工程学院工程防灾与结构安全教育部重点实验室,广西南宁53000
2.武汉大学水利水电学院水资源与水电工程科学国家重点实验室,湖北武汉430072)
摘要:为研究闸墩内型钢布置形式对闻墩工作性能的影响,依据孤门支座附近墩局部受拉区配钢
量不变原则,基于 ANSYS软件建立不同布置形式的型钢混凝土闸墩模型,分别从闸墩位移、应力、
裂缝分布和承载能力4个方面对闸救内型钢布置角度和数量对闸墩工作性能的影响进行对比分析,得
出型钢布置形式对型钢混凝土闸墩工作性能的影响规律。结果表明:对称荷载作用下,随着型钢数量
增加,型钢混凝土闸墩位移、应力逐渐减小,承载能力逐渐增强;非对称荷載作用下,随型钢数量的
增加,闸墩位移先减小后增大,闸墩应力变化不明显,闸最承载能力先增强后减弱;保持型钢数量不
变,随着布置角度的增加,型钢混凝土墩位移、应力先减小后增大,型钢布置扩展角为20°~30°
时,闸墩裂缝扩散速度较慢。综合考虑,提出型钢混凝土闸墩内采用三根型钢以25°扩展角进行布置
时为较好布置形式,这一结论在型钢混凝土闸墩设计中具有推广和应用价值。
关鍵词:孤门闸墩;型钢混凝土; ANSYS;型钢布置形式
doi:10.13928/j. cnki. wrahe..2017.07.006
中图分类号:TV335
文献标识码:A
文章编号:100-0860(2017)07-0035-08
Study on arrangement pattern of shaped-steel inside of shaped-steel concrete pier for radial gate
ZHANG Xiaofei HU Ruichang, CHENG Xi!, LUO Wenguang
(1. Key Laboratory of Disaster Prevention and Structure Safety of Ministry of Education, College of Civil Engineering and Architecture
Guangxi University, Nanning 530004, Guangxi, China; 2. State Key Laboratory of Water Resources and Hydropower Engineering
Science, School of Water Resources and Hydropower Engineering, Wuhan University, Wuhan 430072, Hubei, China
Abstract In order to study the influence from the arrangement pattern of the shaped-steel inside of gate pier on the working per-
formance of the gate pier, the models for the gate pier with various arrangement patterns of shaped-steel are established herein
based on the software of ANSYS in accordance with the principle that the steel quantity is constant in the local tensilezone of the
gate pier near the support of radial gate, and then the influences from both the angle and the number of theshaped-steel arrange
ment inside of the gate pier on its working performance are comparatively analyzed from the aspects of displacement, stress, crack
distribution and bearing capacity respectively, from which the law of the influence from the arrangement pattern of the shaped
steel inside of the gate pier on the working performance of it is obtained. The study result shows that under the the displacement
and stress of the shaped-steel concrete gate pier gradually decrease and its bearing capacity gradually increases along with the in
crease of the steel quantity the under symmetrical load, while the displacement of the gate pier decreases at first and then increa-
ses with an unobvious change of the stress therein, for which the bearing capacity of the gate pier increases at first and then de
creases. If keeping the quantity of the shaped-steel constant, the displacement and stress of the shaped-steel concrete gate pier
decrease at first and then increases along with the increase of the arrangement angle. When the expansion-angle of the shaped
收稿日期:2017-01-12
基金项目;国家自然科学基金(51369007
作者筒介:张小飞(1964ー),男,教授级高级工程师,硕士,主要从事水工结构设计理论及安全评价研究。E-mail:goxfzhang@sina.com
通信作者:胡瑞昌(199-),男,硕士研究生,主要从事水工结构设计研究。E-mil:hurray@@163.com
Water Resources and Hydropower Engineering Vol 48 No. 7
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