[1]吕俊利,*,周圣楠,等.分离式叠合板组合梁受力性能试验与模拟研究[J].山东建筑大学学报,2020,35(04):11-17.[doi:10.12077/sdjz.2020.04.002]
 LYU Junli,*,ZHOU Shengnan,et al.Experimental and simulation study on mechanical properties of separated composite beam with laminated slabs[J].Journal of Shandong jianzhu university,2020,35(04):11-17.[doi:10.12077/sdjz.2020.04.002]
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分离式叠合板组合梁受力性能试验与模拟研究()
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《山东建筑大学学报》[ISSN:1673-7644/CN:37-1449/TU]

卷:
35
期数:
2020年04期
页码:
11-17
栏目:
研究论文
出版日期:
2020-08-15

文章信息/Info

Title:
Experimental and simulation study on mechanical properties of separated composite beam with laminated slabs
文章编号:
1673-7644(2020)04-0011-07
作者:
吕俊利12*周圣楠1吕京京1蔡永远1陈其超1
(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实验室,山东 济南 250101)
Author(s):
LYU Junli12* ZHOU Shengnan1 LYU Jingjing1 CAI Yongyuan1 CHEN Qichao1
( 1. School of Civil Engineer,Shandong Jianzhu University,Jinan 250101,China;2. Key Lab of Building Structural Retrofitting and Underground Space Engineering,Jinan 250101,China )
关键词:
分离式叠合板组合梁静力试验跨中挠度ABAQUS
Keywords:
separated composite beam with laminated slab static test deflection in the mid-spanABAQUS
分类号:
TU375.1
DOI:
10.12077/sdjz.2020.04.002
文献标志码:
A
摘要:
分离式叠合板组合梁受力性能的研究可为新型组合梁的理论分析提供参考依据及借鉴作用。文章通过足尺分离式叠合板组合梁的静力试验,对试验梁的破坏形式、加载点处沿截面高度的纵向应变和跨中截面的挠度变化进行分析,并采用ABAQUS软件模拟分析了分离式叠合板组合梁受力性能的影响因素。结果表明:分离式叠合板组合梁中预制板拼缝的存在,削弱了试件的抗剪承载力,造成试件的剪切破坏,但在远离预制板拼缝处,叠合板的协同工作性能良好;分离式叠合板组合梁的受力性能随后浇层厚度的增加和栓钉间距的减小而提高,施工时的预制底板在钢梁上翼缘的搁置长度宜为40 mm;模拟结果与试验结果吻合较好,验证了数值分析模型的有效性与可行性。
Abstract:
The research on the mechanical behavior of separated composite beam with laminated slab can provide important reference for the further theoretical analysis of this kind of new composite beams. In this paper, static test of full-scale separated composite beam with laminated slab were carried out to analyze the failure mode of the test beam, the longitudinal strain along the cross-section height at the loading point, and the deflection change of mid-span section. The ABAQUS software is used to carry out finite element simulation of the factors affecting the mechanical performance of the separated composite beam with laminated slab. Test results show that the existence of separating-type joints in the separated composite beam with laminated slab weakens the shear capacity of the test specimen, causing shear damage to the specimens, but the interactive work performance can be realized at the location far away from separating-type joints. The mechanical behavior of separated composite beams with laminated slab were improved with the increase of the thickness of post cast slab and the decrease of shear connector spacing; During construction, the overlapping length of the precast slab on the upper flange of the steel beam should be 40 mm. The simulation results agree well with the experimental results, which verifies the validity and feasibility of the numerical analysis model.

参考文献/References:

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相似文献/References:

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备注/Memo

备注/Memo:
收稿日期:2020-06-05 基金项目:国家自然科学基金面上项目(51878398) 作者简介:吕俊利(1978-),男,副教授,博士,主要从事结构抗火等方面的研究.E-mail:LJL1978@163.com[*通讯作者]
更新日期/Last Update: 2020-07-13