Push-out tests of demountable headed stud shear connectors in steel-UHPC composite structures

被引：111

作者：

Wang, Jun-Yan ^{[1
]}

Guo, Jun-Yuan ^{[1
]}

Jia, Liang-Jiu ^{[2
]}

Chen, Shi-Ming ^{[2
]}

Dong, Yang ^{[2
]}

机构：

[1] Tongji Univ, Minist Educ, Key Lab Adv Civil Engn Mat, Shanghai 201804, Peoples R China

[2] Tongji Univ, Inst Struct Engn & Disaster Reduct, Shanghai 200092, Peoples R China

来源：

COMPOSITE STRUCTURES | 2017年 / 170卷

关键词：

Ultra-high performance concrete; Shear connector; Demountable; Headed stud; FIBER-REINFORCED CONCRETE; FLEXURAL BEHAVIOR; PERFORMANCE; OVERLAY; DECK;

D O I：

10.1016/j.compstruct.2017.03.004

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

Previous studies show that welded shear connectors in steel-ultra high performance concrete (UHPC) composite structures have poor ductility, which cannot satisfy the requirement of Eurocode 4 for ductile design. This paper presents a series of tests on demountable headed stud shear connectors in steel-UHPC composite structures, which can be employed in prefabricated building structures and bridge decks. This type of demountable stud shear connectors can make structural components recyclable and environment-friendly. The effects of the shank diameter and aspect ratio on failure modes, initial stiffness, ultimate strength and ductility of the shear connectors are investigated through push-out tests. Five groups of the connectors each with three specimens are tested considering deviations of the specimens due to material discreteness and manufacturing errors. Design formula for the shear strength of the demountable stud connectors is proposed, and design recommendations are also presented based on the experimental results. 2017 Elsevier Ltd. All rights reserved.

引用

页码：69 / 79

页数：11

共 30 条

[1]

4-4 CEN, 2004, 44 CEN

[2]

AFGC-SETRA, 2013, ULTR PERF FIB REINF

[3]

[Anonymous], 2011, C1609C1609M10 ASTM

[4]

[Anonymous], 2014, LRFD BRIDG DES SPEC, V7th

[5]

[Anonymous], 2009, 1235072009 BS EN

[6]

[Anonymous], 2014, C469C469M ASTM

[7]

[Anonymous], 2009, 1235032009 BS EN

[8]

British Standards Institution, 2009, 1235022009 BS EN

[9]

CEN, 2005, 2 CEN

[10] Use of UHPFRC overlay to reduce stresses in orthotropic steel decks [J].

Dieng, Lamine ;

Marchand, Pierre ;

Gomes, Fernanda ;

Tessier, Christian ;

Toutlemonde, Francois .

JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH, 2013, 89 :30-41

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