Experimental and numerical studies on flexural behavior of fiber continuous joints of precast UHPC decks

被引：5

作者：

Zhao, Qiu ^{[1
]}

Zhang, Hao ^{[1
]}

Yang, Jianping ^{[2
]}

Yang, Xiaoqiang ^{[1
]}

Wang, Ying ^{[1
]}

Lai, Zhichao ^{[1
]}

机构：

[1] Fuzhou Univ, Coll Civil Engn, Fuzhou 350108, Fujian, Peoples R China

[2] CCCC Second Harbor Engn Co Ltd, Wuhan, Hubei, Peoples R China

来源：

STRUCTURAL CONCRETE | 2023年 / 24卷 / 01期

基金：

中国国家自然科学基金;

关键词：

fiber continuity; flexural capacity; joint interface; lap-spliced rebar; UHPC deck; DURABILITY PROPERTIES; STRUCTURAL BEHAVIOR; PERFORMANCE; CONNECTIONS;

D O I：

10.1002/suco.202200214

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

This study investigated the flexural behavior of ultra-high-performance concrete decks with an innovative joint of fiber continuity at the joint interface. An experimental program with 21 specimens was designed and tested. Four types of joints were studied, that is, lap-spliced rebar, fiber continuity, combination of fiber continuity and lap-spliced rebar, and combination of additional reinforcement and lap-spliced rebar. Finite element models were built and benchmarked using the test results. The influence of reinforcement ratio and interfacial fiber content was investigated. Experimental and numerical results showed that a joint with a combination of fiber continuity and lap-spliced rebar achieved similar flexural performance as cast-in-place decks. In addition, the design theory of the Swiss code (SIA 2052-2016) was recommended with promising accuracy in estimating the flexural capacity of precast ultra-high-performance concrete decks, based on the tensile strength of joint interface with various fiber contents.

引用

页码：1328 / 1347

页数：20

共 41 条

[1] Aaleti S., 2013, Design guide for precast UHPC waffle deck panel system, including connections
[2] Design of Ultrahigh-Performance Concrete Waffle Deck for Accelerated Bridge Construction
Aaleti, Sriram
Sritharan, Sri
[J]. TRANSPORTATION RESEARCH RECORD, 2014, (2406) : 12 - 22
[3] Structural Behavior of Waffle Bridge Deck Panels and Connections of Precast Ultra-High-Performance Concrete Experimental Evaluation
Aaleti, Sriram R.
Sritharan, Sri
Bierwagen, Dean
Wipf, Terry J.
[J]. TRANSPORTATION RESEARCH RECORD, 2011, (2251) : 82 - 92
[4] Abaqus G., 2011, AB 6 11
[5] Exploring mechanical and durability properties of ultra-high performance concrete incorporating various steel fiber lengths and dosages
Abbas, Safeer
Soliman, Ahmed M.
Nehdi, Moncef L.
[J]. CONSTRUCTION AND BUILDING MATERIALS, 2015, 75 : 429 - 441
[6] ACI Committee 318, 2019, 31819 ACI
[7] A review on durability properties of strain hardening fibre reinforced cementitious composites (SHFRCC)
Ahmed, Shaikh Faiz Uddin
Mihashi, Hirozo
[J]. CEMENT & CONCRETE COMPOSITES, 2007, 29 (05) : 365 - 376
[8] [Anonymous], 2019, 500812019 GBT MOHUR
[9] [Anonymous], 2018, ULTRA HIGH PERFORMAN
[10] [Anonymous], 20522016 SIA

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