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Parametric Study of Static Strength of Multiplanar KK-Joints：Square Chords and Circular Braces Aiguo Chen1, a, Weiliang Huang1, b, Ruizeng Shan2, c and Qingshan Yang1, d 1School of Civil Engineering and & Architecture, Beijing Jiaotong University, No.3 Shang Yuan Cun, Beijing, 100044, China 2 Beijing Institute of Architectural Design, No.62 Nan Li Shi Lu, Beijing 100045, China aagchen@bjtu.edu.cn, bhwl851002@163.com, crizhaoshan@126.com, dqshyang@bjtu.edu.cn Key words: KK-joints, Finite Element, Ultimate Capacity, Failure Modes.
Ochi, “Ultimate resistance of unstiffened tubular joints” ASCE/ Journal of Structural Engineering, Vol. 110, No. 2, 385–400, 1984
Wilmshurst, “Parametric Study of Strength of Tubular Multiplanar KK-Joints” ASCE/ Journal of Structural Engineering, Vol. 122, No. 8, 893-903, 1996
Wilmshurst, “Strength of Multiplanar Tubular KK-Joints under Antisymmetrical Axial Loading” ASCE/ Journal of Structural Engineering, Vol. 123, No. 6, 755-763, 1997
Lee, “Static strength of axially loaded tubular K-Joints” ASCE/ Journal of structural engineering, Vol. 125, No. 2, 202-210, 1999

Attard1* 1University of Alabama at Birmingham, Department of Civil, Construction, and Environmental Engineering, Hoehn Engineering Building 331C, 1075 13th Street South, Birmingham, AL 35294-4440, USA 1lihe@uab.edu, *thoma1@uab.edu Keywords: Polyurea, Epoxy, Viscoelasticity, DMA, Complex Moduli, Loss Modulus, Generalized Maxwell Model Abstract.
“Numerical Simulations of Dynamic Behavior of Polyurea Toughened Steel Plates under Impact Loading,” Journal of Computational Engineering [2] Huang, W., Yang, Y., Li, H., Lyu, P., & Zhang, R. (2017).
DEStech Transactions on Materials Science and Engineering, (ictim) [3] Zhou, H., Attard, T.L., Dhiradhamvit, K., Wang, Y., and Erdman, D. (2015).
“Crashworthiness characteristics of a carbon fiber reinforced dual-phase epoxy–polyurea hybrid matrix composite,” Composites Part B: Engineering, 2015. 71: p. 17-27
“Tornado-borne debris impact performance of an innovative storm safe room system protected by a carbon fiber reinforced hybrid polymeric-matrix composite,” Engineering Structures, 59: p. 308-319

Introduction Spatial variability of ground motion during seismic shocks is often neglected in calculations of the dynamic response of simple engineering structures, like buildings.
Modeling and engineering applications, CRC Press, Taylor & Francis Group, Boca Raton, FL, 2009
Journal of Earth Sciences and Engineering, 4 (2011) 538-541
Fenves, Plastic-Damage Model for Cyclic Loading of Concrete Structures, Journal of Engineering Mechanics, 124 (1998) 892-900
Foundations of Civil and Environmental Engineering, 6 (2005) 53-69.

The Uncertainty Analysis of Health Management Strategies for Aero-engines Zhenhua Wen a, Xin Yinb, Yuanpeng Liuc School of Mechatronics Engineering, Zhengzhou Institute of Aeronautical Industry Management, Zhengzhou, Henan Province 450015 ,P.R.
But because the hypothesis condition is an ideal state and is more or less different with practical engineering condition, the maintenance decision-making based on which gets a certain degree of uncertainty and limit the actual popularization and application of maintenance decision-making methods.
Plus, there is a certain limit for the generalization capacity of the model itself, so as for specific engineering conditions, the uncertainty of output decision-making for different models always exists and the only difference is the degree of uncertainty.
Transactions of the American Institute of Electrical Engineers, Vol. 47. (2009) No. 2, pp. 617-644
China Mechanical Engineering .Vol. 18 (2007) No. 21, pp. 2580-2584.

Cyclic Loading Behaviour of Double Strap Bonded Joints with CFRP and Aluminium Hugo Biscaia1,a, Rui Micaelo2,b, Carlos Chastre2,c and João Cardoso1,d 1UNIDEMI, Department of Mechanical and Industrial Engineering, FCTUNL, Quinta da Torre, 2829-516 Caparica, Portugal 2CERIS, Department of Civil Engineering, FCTUNL, Quinta da Torre, 2829-516 Caparica, Portugal ahb@fct.unl.pt, bruilbm@fct.unl.pt, cchastre@fct.unl.pt, djbc@fct.unl.pt Keywords: Discrete Element Method; Bonded joints; CFRP; Aluminium; Cyclic loading; Double strap joints.
Carpinteri: Engineering Structures Vol. 33, Issue 6 (2011), p. 1988-2001
Chastre: Key Engineering Materials, Vol. 754 (2017), p.237-240
Biscaia, R. et al: Composites Part B: Engineering, Vol. 67 (2014), p. 410-426
Wu: Composites Part B: Engineering, Vol. 61 (2014), p. 17-25

Casadei, Containment of blast phenomena in underground electrical power plants, Advances in Engineering Software, 29 (1998) 7-12
Chien, Blast-resistant analysis for a tunnel passing beneath Taipei Shongsan airport - A parametric study, Geotechnical and Geological Engineering, 24 (2006) 227-248
Yankelevsky, Internal blast loading in a buried lined tunnel, International Journal of Impact Engineering, 35 (2008) 172-183
Liu, Dynamic analysis of subway structures under blast loading, Geotechnical and Geological Engineering, 27 (2009) 699-711
Li, Numerical analysis of internal blast effects on underground tunnel in soils, Structure and Infrastructure Engineering, (2016) 16 p.

., Lutsk, Ukraine, 43018 2National University of Civil Defence of Ukraine, 94 Chernishevska str., Kharkiv 61023, Ukraine aShyberko@ukr.net, bsamchuk@gmail.com, chuliieva@lntu.edu.ua, d9000@lntu.edu.ua, eruban_artem1979@ukr.net Keywords: sieve analysis, fraction, powder materials, powder backfill, average particle size, polydispersity, porosity, hopper.
Heng-wei, Sintering driving force of Al2O3 powders at the initial stage of pulse electric current sintering under thermoelastic diffusion, International Journal of Mechanical and Materials Engineering. 13 (2018) 2-8
Vettivel, Microstructure, consolidation and mechanical behaviour of Mg/n-TiC composite, Alexandria Engineering Journal. 55 (2016), 2077-2086
Pasternak, Boundary element modeling of pyroelectric solids with shell inclusions, Mechanics and Mechanical Engineering. 22 (2018), 727-737
Blaine, Іnfluence of heat treatments on the microstructure and tensile behaviour of selective laser melting-produced Ti-6Al-4V parts, South African Journal of Industrial Engineering. 27 (2016), 174-183

An Improved Test Method for the Detection on Alkali-Silica Reactivity of Aggregate Jing Wang1, a, Guhua Li1, Junpeng Zhang2 , Junjie Zhou1, Fengming Sun1, Xianxiao Peng1 1School of Civil Engineering, Southwest Jiaotong University, Chengdu, Sichuan, 610031, China 2China Railway Fifth Survey and Design Institute Group Co., Ltd, Beijing, 102600, China awjtl01@163.com Keywords: alkali-silica reaction (ASR); mortar-bar method; accelerated mortar-bar method; improved test method Abstract.
The authors based on accelerated mortar-bar method to put forward an improved test method to evaluate the alkali-silica reactivity of slate aggregate, the water bath with temperature control maintaining 80.0 ± 2.0 °C, it takes steam curing to ensure there is no external alkali into the interior, Compared with the accelerated mortar bar method, it’s a new test method which closes to the actual engineering conditions.
It means that to achieve to 0.46% of accelerated mortar-bar method will be a very long time; it does not accord with the need of actual engineering now.
Improved test method conditions are similar to the vast majority of actual engineering environment conditions.
Acknowledgements Research Fund: Science and Technology Major Program of Guizhou, China (20106005) References [1] Test methods of aggregate for highway engineering.

Journal of Ecological Engineering, 21(7) (2020) 178-185
Journal of Ecological Engineering, 20(1) (2019) 158-164
Journal of Environmental Engineering and Landscape Management, (2014) 1–9
Series: Materials Science and Engineering, 708 (2019) 012035
Ecological engineering: Scientific journal, 21(8) (2020) 146–155

Identification of Building Envelope Characteristics to Reduce Vulnerability Against Earthquakes and Meteorological Hazards Enrico Pasquale Zitiello*a, Rossella Marmob, Mariacarla Fraiesec, Antonio Salzanod and Roberto Castelluccioe Department of Civil, Building and Environmental Engineering, University of Naples Federico II, Naples, Italy aenricopasquale.zitiello@unina.it, brossella.marmo@unina.it, cmariacarla.fraiese@unina.it, dantonio.salzano@unina.it, eroberto.castelluccio@unina.it Keywords: Natural Hazards, Building Envelope, Vulnerability, Adaptation Strategies.
Journal of Building Engineering, 84(3): 108564 (2024). https://doi.org/10.1016/j.jobe.2024.108564 [21] B.
Journal of Building Engineering, 41:102735 (2012). https://doi.org/10.1016/j.jobe.2021.102735 [24] Y.
Engineering Structures, 235:112101 (2021). https://doi.org/10.1016/j.engstruct. 2021.112101 [26] P.
In Proceedings of the 14th International Conference on Wind Engineering, Porto Alegre (Brazil) (2015).