scholarly journals SIMULATION OF CO-CURED MULTI-CELL COMPOSITE BOX BEAM MANUFACTURING VIA VARTM

2017 ◽  
Vol 5 (sp.is.1) ◽  
pp. 93-102
Author(s):  
Mert Akın ◽  
Merve Erdal
Keyword(s):  
Box Beam ◽  
Composite Box Beam

A new 3-D element formulation on displacement of steel-concrete composite box beam

2013 ◽  
Vol 20 (5) ◽  
pp. 1354-1360 ◽  
Author(s):  
Ling-yu Zhou ◽  
Zhi-wu Yu ◽  
Gui-chao He
Keyword(s):  
Element Formulation ◽  
Box Beam ◽  
Composite Box Beam

An Adjusting Method for the Suspender Force of Continuous Beam Arch Combination Bridge Based on Influence Matrix

2013 ◽  
Vol 275-277 ◽  
pp. 1082-1085 ◽  
Author(s):  
Han Bing Liu ◽  
Long Lin Wang ◽  
Guo Jin Tan ◽  
Yong Chun Cheng
Keyword(s):  
Numerical Simulation ◽  
Finite Element ◽  
Numerical Model ◽  
Iterative Algorithm ◽  
Prestressed Concrete ◽  
Continuous Beam ◽  
Influence Matrix ◽  
Box Beam ◽  
Beam Bridge ◽  
Composite Box Beam

Based on a project of a 22+55+22m continuous composite box beam bridge made of prestressed Concrete, using influence matrix, Numerical Simulation and Iterative Algorithm, an adjusting method for suspender force of continuous beam arch combination bridge has been proposed. It uses Finite Element Numerical Model to calculate the influence matrix and Iterative Algorithm to calculate the suspender force. When rely on this project, the error could be under 0.05% through finite iterative algorithm. And the feasibility has been tested in the completed bridge. It turns out that the error of the measured suspender force of the completed bridge is smaller than that in the design.

Dynamics Analysis of Steel-Concrete Composite Box Beams

2014 ◽  
Vol 528 ◽  
pp. 94-100
Author(s):  
Li Zhong Jiang ◽  
Xin Kang ◽  
Chang Qing Li
Keyword(s):  
Dynamic Performance ◽  
Composite Beams ◽  
Design Stage ◽  
Finite Element Program ◽  
Long Span ◽  
Box Beam ◽  
Long Span Bridge ◽  
Element Program ◽  
Box Beams ◽  
Composite Box Beam

Steel-concrete composite box beams have been widely used in high rise buildings and long-span bridge structures. But so far, almost all researches have been aimed at the static behavior of the composite beams and dynamic behavior of steel and concrete composite beams have been rarely studied. In this paper, by using general finite element program ANSYS to analyze the dynamic performance of the composite box beam under different geometric parameters. Research is focused on the slip stiffness、width-to-thickness ratio、depth-span ratio and the height ratio of cross section to the vibration characteristics of composite box beam. The results indicate that these factors affect the seismic dynamic response of steel-concrete composite box beams most and they should be controlled according to different situations in seismic design stage.

Multi-objective optimal design of composite box beam using hybrid adaptive harmony search with dynamically reconfigurable harmony memory

2018 ◽  
Vol 233 (2) ◽  
pp. 713-734 ◽  
Author(s):  
K Lakshmi ◽  
A Rama Mohan Rao
Keyword(s):  
Composite Materials ◽  
Performance Metrics ◽  
Harmony Search ◽  
Hybrid Search ◽  
Cross Sectional ◽  
Multi Objective ◽  
Specific Strength ◽  
Box Beam ◽  
Beam Design ◽  
Composite Box Beam

In the design of helicopter rotor blades, the composite materials are being popularly used, as they are lighter in weight with high specific strength and modulus apart from superior fatigue characteristics. As the performance of the composite materials can be tailored with the optimized layup sequence, the robust optimization algorithms, which cater to this, become necessary. We propose an approach for multi-objective optimization of composite box beam by considering the cross-sectional dimensions and the discrete ply angles as design variables. We present a new improved version of the basic harmony search optimization algorithm by building the features like adaptivity, hybrid search with a customized local search, and multiple sub harmonies with dynamic interaction among them. These features greatly improve both intensification and diversification capabilities of the proposed algorithm. Numerical studies carried out on a box beam clearly reflects the superiority of the proposed approach in providing wider as well as improved design configuration while handling multiple objectives of box-beam design. Finally, we have used a set of performance metrics to demonstrate the effectiveness of the proposed algorithm by comparing with other very recent stochastic algorithms.

Vibration Reduction in Rotor Blades Using Active Composite Box Beam

AIAA Journal ◽  
2000 ◽  
Vol 38 (7) ◽  
pp. 1125-1131 ◽  
Author(s):  
Aditi Chattopadhyay ◽  
Qiang Liu ◽  
Haozhong Gu
Keyword(s):  
Vibration Reduction ◽  
Rotor Blades ◽  
Box Beam ◽  
Active Composite ◽  
Composite Box Beam

A refined higher-order composite box beam theory

1996 ◽  
Author(s):  
Thomas McCarthy ◽  
Aditi Chattopadhyay
Keyword(s):  
Beam Theory ◽  
Higher Order ◽  
Box Beam ◽  
Composite Box Beam
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