Cracking Performance in the Hogging-Moment Regions of Natural Curing Steel–UHPC and Steel–UHTCC Continuous Composite Beams

2022 ◽  
Vol 27 (2) ◽  
Author(s):  
Jian-ping Lin ◽  
Linquan Lin ◽  
Zhongxin Peng ◽  
Rongqiao Xu ◽  
Guannan Wang
Keyword(s):  
Composite Beams ◽  
Cracking Performance

scholarly journals Experimental and Numerical Studies on the Negative Flexural Behavior of Steel-UHPC Composite Beams

2021 ◽  
Vol 2021 ◽  
pp. 1-15
Author(s):  
Xinhua Liu ◽  
Jianren Zhang ◽  
Zihan Cheng ◽  
Meng Ye
Keyword(s):  
Crack Width ◽  
Bending Moment ◽  
Composite Beams ◽  
Flexural Behavior ◽  
Element Analysis ◽  
Conventional Concrete ◽  
Bond Slip ◽  
Cracking Performance ◽  
Negative Moment ◽  
Negative Bending

The cracking of concrete in the negative moment region for a composite beam subjected to a negative bending moment reduces the beam’s strength and stiffness. To improve the cracking performance of composite beams, this paper presents an experimental investigation on applying ultrahigh-performance concrete (UHPC) instead of conventional concrete. Three steel-UHPC composite beams with different forms of joints were designed and tested through a unique rotation angle loading method using a spring displacement control testing setup. The crack distribution, rotation versus crack width, load versus spring displacement, and strains in the UHPC slab and steel girders were measured and studied. Nonlinear finite element analysis using ABAQUS based on the damaged plasticity model of concrete was carried out for comparison with the test results. The experimental and numerical results showed that the use of a UHPC slab can enhance the cracking performance of composite beams. Considering the convenience of construction, a reasonable joint form was suggested, and the appropriate UHPC longitudinal laying length in the negative moment region was proposed to be 0.1 L. Furthermore, a simplified formula for calculating the UHPC crack width was developed based on bond-slip theory.

Flexural Performance of CFRP-Bamboo Scrimber Composite Beams

2019 ◽  
Vol 7 (12) ◽  
pp. 1295-1307
Author(s):  
Xizhi Wu ◽  
Xueyou Huang ◽  
Xianjun Li ◽  
Yiqiang Wu
Keyword(s):  
Composite Beams ◽  
Flexural Performance ◽  
Bamboo Scrimber

Optimum design and validation of flat composite beams dubject to frequency constraints

AIAA Journal ◽  
1997 ◽  
Vol 35 ◽  
pp. 540-545
Author(s):  
J. M. Taylor ◽  
R. Butler
Keyword(s):  
Optimum Design ◽  
Composite Beams ◽  
Frequency Constraints

Modeling of composite beams with integrated piezoelectric actuators - A natural mode approach

2000 ◽  
Author(s):  
S. Hamdi ◽  
J. Hansen ◽  
J. Gottlieb ◽  
D. Oguamanam
Keyword(s):  
Piezoelectric Actuators ◽  
Composite Beams ◽  
Natural Mode
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