The Sensitivity Analysis of the Distance Effect and Explosive Load on Concrete Structures, Considering the Soil-Structure Interaction Effects
محورهای موضوعی :
Mohammad Emami korandeh
1
(Academic staff of the Civil Engineering Department and member of the Council of the Civil Engineering Department)
Saeed Farokhizadeh
2
(civil engineering-construction management of Islamic Azad University Tehran-Jonoob Branch)
کلید واژه: Nonlinear dynamic analysis, soil and structure interaction, explosive load, sensitivity analysis, distance effect.,
چکیده مقاله :
The undeniable impact of soil-structure interaction on the behavior of structures, coupled with the increased importance of explosive loads in current global security and social conditions, has led to the modeling and sensitivity analysis of the distance effect and explosive load on concrete structures, taking into account the effects of soil-structure interaction. Three types of structures with 3, 7, and 15 floors were modeled for this investigation, and the results were evaluated. The software tools ETABS and ABAQUS were utilized, with ETABS for structural element design and ABAQUS for examining the effects of soil-structure interaction. The input energy and induced displacements in the structures have a meaningful relationship with the explosion force. In all three structures (3, 7, and 15 floors), the energy and displacements created vary proportionally with the explosion distance or the reduction in explosive material weight. The plasticity rate reflects a substantial reduction in damage with an increasing explosion distance from the structure. Additionally, according to the research results, an increase in the number of floors undoubtedly leads to more noticeable displacements. Therefore, these displacements and energy absorption in the 15-floor structure exceed those in other structures. The failure zone in the 3-floor structure is mostly in the last floor, in the 7-floor structures in the middle floors, and in the 15-floor structures in the initial floors. Displacement in the 3-floor structure is at the upper levels, in the middle of the 7-floor structure, and at the lower levels of the 15-floor structure.
The undeniable impact of soil-structure interaction on the behavior of structures, coupled with the increased importance of explosive loads in current global security and social conditions, has led to the modeling and sensitivity analysis of the distance effect and explosive load on concrete structures, taking into account the effects of soil-structure interaction. Three types of structures with 3, 7, and 15 floors were modeled for this investigation, and the results were evaluated. The software tools ETABS and ABAQUS were utilized, with ETABS for structural element design and ABAQUS for examining the effects of soil-structure interaction. The input energy and induced displacements in the structures have a meaningful relationship with the explosion force. In all three structures (3, 7, and 15 floors), the energy and displacements created vary proportionally with the explosion distance or the reduction in explosive material weight. The plasticity rate reflects a substantial reduction in damage with an increasing explosion distance from the structure. Additionally, according to the research results, an increase in the number of floors undoubtedly leads to more noticeable displacements. Therefore, these displacements and energy absorption in the 15-floor structure exceed those in other structures. The failure zone in the 3-floor structure is mostly in the last floor, in the 7-floor structures in the middle floors, and in the 15-floor structures in the initial floors. Displacement in the 3-floor structure is at the upper levels, in the middle of the 7-floor structure, and at the lower levels of the 15-floor structure.
1- Abbasian, Mohammad, and Shapurian, Shayan. (1402). Presenting a model of communication between effective factors in the construction and establishment of field hospitals with a passive defense approach. Passive Defense, 14(4), 75-83.
2- Abbasi Karafshani, Saeed; Alireza Ardakani and Mansour Lakhrian, 2014, investigation of the effect of near-field earthquakes on the seismic response of the soil-piles-structure system, the second national conference on soil mechanics and foundation engineering, Qom, Qom University of Technology.
3- Ayatollahi Moosavi, S, M., Tabatabaei Mirhoseini, R., Kebriaie, M., 2022, Investigation of seismic behavior of the reinforced concrete wall-frame system on a flexible bed, Results in Engineering 15 (2022) 100581.
4- Behrouzi, Nasser and Baba Ali, Hamidreza, 2018, investigation of the effect of carbon polymer fibers on the strengthening of composite shear walls against blast waves in the states with and without soil-structure interaction, the 6th National Conference on Applied Researches in Civil Engineering, Architecture and Urban Management and the 5th Mass specialized exhibition of housing and building builders in Tehran Province, Tehran, https://civilica.com/doc/927318.
5- Borbory, E, 2020, Opening effects in reinforced concrete shear walls, a literature review on experimental and finite element studies, International Journal of Engineering and Applied Sciences (IJEAS) ISSN: 2394-3661, Volume-7, Issue-2, Februry 2020.
6- Bush R.C., Shirkol A.I., Sruthi J.S., Ajay Kumar., 2022, Study of seismic analysis of asymmetric building with different shapes of staggered openings and without openings in Shear Wall, Materials Today: Proceedings, May 2022.
7- Casagrande, D., Fanti, R., Greco, M., Garvic I., Polastri, A., 2021, On the distribution of internal forces in single-storey CLT symmetric shear-walls with openings, Structures 33 (2021) 4718–4742
8- Emami Kurandeh, Mohammad, and Hosseini, Seyyed Azim. (1401). Determining the critical column in the phenomenon of progressive collapse in steel bending frame by considering the effect of soil and structure interaction by two direct and indirect methods. Passive Defense, 13(2), 1-13.
9- EmamiKorandeh, M., & Askari, B. (2023). The Effect of BRB and CBF Braces on Seismic Behavior of Steel Structures under Near Field Earthquakes. Passive Defense Quarterly, 14(1), 139-148.
10- Emami, K. M., & Hosseini, S. A. (2022). Determination of the Critical Column in the Phenomenon of Progressive Collapse of the Steel Bending Frame Considering the Effect of Soil-Structure Interactions with both the Direct and Indirect Methods.
Hassanvand, Poua, and Hosseini, Mojtabi. (1402). Reinforcement of concrete columns of bridge foundation against explosive loading and comparison of different methods of reinforcement. Passive Defense, 14(3), 27-39.
11- Kazemini, Omid and Ramadanpour, Mohammad Ali, 2019, investigation of the effect of soil and structure interaction on the behavior of concrete structure with central core under explosive load, the third international conference on civil engineering, architecture and urban management, https://civilica.com/doc/1041275
12- Mokhtari, Mehdi, and Ebrahimi, Mohammad. (1401). Numerical evaluation of bearing capacity of reinforced concrete slab with high strength concrete under the effect of blast loads. Passive Defense 13(2), 15-23.
13- Mahmoudzadeh, M., Shidaei, M. R., 2014, Effects of soil-structure interaction in response to earthquakes of double short steel systems, 2nd International Conference and 6th National Conference on Earthquakes and Structures, Kerman, Kerman University Jihad.
14- Radkia, S., Gandamkar, A., Rah Noord, R., 2018, Seismic response of asymmetric steel sliding structure considering the effects of soil and structure interaction, Scientific-Research Journal of Structural and Construction Engineering, Volume 6, No. 3, 2018, pages 105 to 120.
15- Peyman Rahgoz and Seyed Morteza Marandi, 2014, Analysis of soil-structure interaction in adjacent tall structures, 10th International Congress of Civil Engineering, Tabriz, Tabriz University, Faculty of Civil Engineering.
16- Sarlak, A., Saeedmonir, H., Gheyratmand, C., 2017, Numerical and Experimental Study of Soil-structure Interaction in Structures Resting on Loose Soil Using Laminar Shear Box, IJE TRANSACTIONS B: Applications Vol. 30, No. 11, (November 2017) 1654-1663.
17- Shurestani, S., Soltani, F., Ghasemi, M., Meadarami, S., 2015, parametric studies of isolated structures at the foundation considering the effects of soil-structure interaction, the second international conference on new research findings in engineering Civil engineering, architecture and urban management, Tehran, International Confederation of Inventors of the World (IFIA), University of Applied Sciences.
18- Torabi Kanibaghi, M., Kargar, S. H., 1396, Seismic design response investigation of reinforced concrete structures with steel shear wall considering the effect of soil-structure interaction, 3rd Annual National Conference on Mechanical Engineering and Industrial Solutions, Mashhad, Arg.
19- Taji, Hamed and Mohadi Far, Seyed Mojtabi, 2016, Investigation of the effect of explosion on the behavior of steel shear walls with stiffeners considering the interaction of soil and structure, 4th International Conference on Structural Engineering, Tehran, https://civilica.com/doc /879408.
20- Torabi, H., & Rayhani, M. T. (2014). Three-dimensional finite element modeling of seismic soil–structure interaction in soft soil. Computers and Geotechnics, 60, 9-19.
21- Tabatabaiefar, H, R., Fatahi, B., Samali, B., 2014, Numerical and Experimental Investigations on Seismic Response of Building Frames under Influence of Soil-Structure Interaction, Advances in Structural Engineering, volume 17, issue 1 (2014).
22- Nasr, E., Fayed, M, N., Hussien, G, El-Makhlasawi, A, M.,The Effect of Shear Wall Openings on the Response Reduction Factor, Civil Engineering Journal · April 2022
23- Wang, H. F., & Zhang, R. L. (2021). Dynamic structure-soil-structure interaction of piled high-rise buildings under earthquake excitations I: Influence on dynamic response. Latin American Journal of Solids and Structures, 18.
