[1]吕晓,贾广皓,张鑫,等.预应力混凝土钢管桁架叠合底板受力性能研究[J].西安建筑科技大学学报(自然科学版),2023,55(06):791-800.[doi:10.15986/j.1006-7930.2023.06.001]
　LÜXiao,JIA Guanghao,ZHANG Xin,et al.Study on mechanical behavior of prestressed concrete steel tube truss composite slab[J].J. Xi’an Univ. of Arch. & Tech.(Natural Science Edition),2023,55(06):791-800.[doi:10.15986/j.1006-7930.2023.06.001]
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预应力混凝土钢管桁架叠合底板受力性能研究()
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西安建筑科技大学学报（自然科学版）[ISSN:1006-7930/CN:61-1295/TU]

卷:
55
期数:
2023年06期
页码:
791-800
栏目:
出版日期:
2023-12-28

文章信息/Info

Title:
Study on mechanical behavior of prestressed concrete steel tube truss composite slab
文章编号:
1006-7930(2023)06-0791-10
作者:
吕晓1; 2; 贾广皓1; 2; 张鑫1; 2; 王顺3
（1.山东建筑大学 土木工程学院，山东 济南 250101；2.建筑结构加固改造与地下空间工程教育部重点试验室，山东 济南 250101；3.山东省医药工业设计院有限公司，山东 济南 250101）
Author(s):
LÜ  Xiao' target="_blank" rel="external"> "sans-serif";">LÜ  Xiao1; 2; JIA Guanghao1; 2; ZHANG Xin1; 2; WANG Shun3
（1.School of Civil Engineering, Shandong Jianzhu University, Jinan 250101, China; 2.Key Laboratory of Building Structural Retrofitting and Underground Space Engineering（Shandong Jianzhu University）, Ministry of Education, Jinan 250101, China; 3.Shangdong Pharmaceutical Industry Design Institute Co. Ltd., Jinan 250101, China）
关键词:
预应力; 钢管桁架; 预制底板; 有限元模型; 参数分析
Keywords:
prestress;  steel pipe truss;  precast base slab;  finite element model;  parameter analysis
分类号:
TU378；TU398.9
DOI:
10.15986/j.1006-7930.2023.06.001
文献标志码:
A
摘要:
为研究预应力混凝土钢管桁架叠合底板受力性能及各个结构要素对预应力混凝土钢管桁架叠合底板整体受力性能的影响，采用ABAQUS有限元软件建立模型并对数据进行分析，计算得出叠合底板试件的荷载跨中挠度曲线关系，并将有限元计算的数据与既有试验数据进行了对比.发现有限元软件计算模拟的荷载跨中挠度曲线关系变化与试验测得数据基本一致，在此基础上，研究了钢管直径、钢管壁厚、底板跨度、预应力筋数量、预应力大小、混凝土强度、砂浆强度等因素对预制板承载力的影响.研究结果表明：预应力大小、钢管壁厚、预应力筋数量、灌浆料强度、叠合板跨度对叠合板承载力影响较大，混凝土强度对叠合板承载力影响较小.
Abstract:
In order to study the mechanical performance of the composite floor of prestressed concretefilled steel tube truss and the influence of various structural elements on the overall mechanical performance of the composite floor of prestressed concretefilled steel tube truss, the model is established by using ABAQUS finite element software, the data are analyzed, the load midspan deflection curve relationship of the composite floor specimen is calculated, and the finite element calculation data is compared with the existing test data. The results show that the variation of load mid span deflection curve calculated and simulated by finite element software is basically consistent with the experimental data. On this basis, the effects of steel pipe diameter, steel pipe wall thickness, base slab span, number of prestressed reinforcements, prestress size, concrete strength and mortar strength on the bearing capacity of precast slab are studied. The results show that the size of prestress, the wall thickness of steel pipe, the number of prestressed tendons, the strength of grouting material and the span of composite slab have a great influence on the bearing capacity of composite slab, and the strength of concrete has a small influence on the bearing capacity of composite slab.

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相似文献/References:

[1]熊仲明,虞子良,魏明兴.大跨预应力混凝土楼盖的双向加速度分布规律及舒适度分析研究[J].西安建筑科技大学学报(自然科学版),2014,46(06):785.[doi:10.15986/j.1006-7930.2014.06.004]
　XIONG Zhongming,YU Ziliang,WEI Mingxing.Analysis of the two-way acceleration distribution and comfort of large-span PRC floor[J].J. Xi’an Univ. of Arch. & Tech.(Natural Science Edition),2014,46(06):785.[doi:10.15986/j.1006-7930.2014.06.004]

备注/Memo

备注/Memo:
收稿日期:2022-10-10修回日期:2023-12-04
基金项目:国家自然科学基金重点项目 （52038006）；山东省自然科学基金面上项目 （ZR2021ME190）；山东省高校土木结构防灾减灾协同创新中心基金项目 （XTP201919）
第一作者:吕晓(1983—), 男，博士，副研究员，主要从事钢混凝土组合结构抗火及火灾后力学性能等方面研究.E-mail:xiaolv_seu@126.com
通信作者:张鑫(1964—)，男，博士，教授，主要从事既有结构加固改造等方面的研究.E-mail: zhangxin@sdjzu.edu.cn
更新日期/Last Update: 2024-02-04