Petchsasithon, Arthit

Preferred name

Alternative Name

Petchsasithon, A.

Main Affiliation

School of Engineering

arthit.pe@kmitl.ac.th

Now showing 1 - 6 of 6

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Advanced structural design for the construction of pressure- and temperature-resistant buildings
(2023-01-01)
Sonthironnachai, Boonchai
;
Petchsasithon, Arthit
Explosive loads from internal and external blasts occurring simultaneously and continuously cause severe structural damage and thermal extremity. Thus, the design of explosion-resistant structures differs vastly from that of typical buildings. For instance, they must be able to withstand dead and live loads, blasts, and extreme pressure and temperature loads. The present research aimed to develop an advanced structural design for explosion-resistant buildings and examine their resistance to three types of explosive loads causing both internal and external damage: the pressure of 300 bar, the temperature of 300 °C, and the pressure of 300 bar combined with the temperature of 300 °C. To achieve the research objective, explosions were simulated before their effects on the primary structural reinforcements, i.e. slabs, beams, and columns, of the five- and two-story buildings under investigation were analyzed in terms of explosion-related parameters using the finite element method (FEM). It was found that the loads from pressure combined with temperature were more destructive to the five-story building than to the two-story building. In addition, the former was more severely affected by the reaction force and reaction moment caused by the simulated explosions than the latter. Recommendations are made regarding advanced structural design for the construction of explosion-resistant buildings.
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Optimization of a heavy-duty elevated thin shell structure
(2022-08-01)
Nassir, Azizah Abdul
;
Min, Yee Hooi
;
Petchsasithon, Arthit
;
Senin, Syahrul Fithry
Optimization means the mathematical determination of the optimal decisions out of diverse alternatives. Based on the preceding Finite Element Analysis (FEA), a proposed shell produced a maximum stress that exceeded the design value. To make the design feasible, an optimization was done to minimize the maximum stress by using the gradient method. The performance of the structure can be optimized to fulfil the design requirements with the optimum value of displacement to achieve the objective function. The results show that the optimum displacement is 8.8mm, which reduced the maximum stress by 99.94% from the initial level. Thus, optimization methods are important for new applications of shell structures to find their best parameters in the design stage.
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Structural design for pressure-and temperature-resistant buildings
(2019-01-01)
Sonthirongnachai, Boonchai
;
Petchsasithon, Arthit
Loads from explosions differ from seismic and wind loads due to their greater severity, continuity, rapidity, and thermal extremity. That is, explosions cause massive structural damage by exposing surrounding structures to extremely high pressure and temperature. Thus, structures at risk of explosive damage must be stronger than typical buildings in withstanding both ordinary loads and the additional pressure and temperature loads caused. Explosion-resistant structures are required in the petrochemical industry, explosive armories, power stations, and gas storage facilities, among others. This study aims to examine the structural performance of a building subject to three types of loads: (1) the pressure of 300 bars, (2) the temperature of 300 °C, and (3) the pressure of 300 bars combined with the temperature of 300 °C. The research analyzes three primary reinforced structures, namely columns, beams, and slabs, in terms of the parameters resulting from each scenario to determine a set of criteria for designing the structural components of explosion-resistant buildings.
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Comparative structural design for pressure-and temperature-resistant buildings with loads affecting externally on structures of different heights
(2019-01-01)
Sonthirongnachai, Boonchai
;
Petchsasithon, Arthit
Loads from explosions can be classified as internal blast load and external blast load and these loads have great severity, continuity and rapidity. That is, explosions cause massive structural damage by exposing surrounding structures to extremely high pressure and temperature. Thus, structures at risk of explosive damage must be stronger than typical buildings in withstanding both ordinary loads and the additional pressure and temperature loads caused. Explosion-resistant structures are required in the petrochemical industry, explosive armories, power stations, and gas storage facilities, among others. This study aims to examine and compare the structural performance of two building of different heights, which are 5-floor and 2-floor, subject to three types of loads: (1) the pressure of 300 bars, (2) the temperature of 300 °C, and (3) the pressure of 300 bars combined with the temperature of 300 °C. The research analyzes three primary reinforced structures, namely columns, beams, and slabs, in terms of the parameters resulting from each scenario to determine a set of criteria for designing the structural components of the buildings to resist the external blasts.
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Information Acquisition and Seismic Damage Prediction of Masonry Structures in Rural Areas Based on UAV Inclined Photogrammetry
(2024-01-01)
Kong, Chao
;
Petchsasithon, Arthit
Using a novel methodology that integrates incremental dynamic analysis (IDA) and unmanned aerial vehicle positioning (POS) analysis, this study aims to assess the seismic risk of brick structures in rural China. This method can collect a lot of data and accurately anticipate seismic damage by combining UAV oblique photography with IDA analysis. Because rural China has many masonry structures, the project will design unique seismic risk mitigation strategies. High-resolution cameras on Unmanned Aerial Vehicles capture realistic photographs of rural brick buildings. The collected data is carefully examined to reveal architectural and structural elements. The project uses dynamic post-processing software from the CHC Geomatics Office to improve UAV-reference station position accuracy. This program analyzes UAV POS data disparities. The findings allow rural Chinese brick buildings to be assessed for seismic sensitivity during unexpected ground shaking occurrences. UAV tilt-photography reduces manpower and expenditures, improving inquiry efficiency. This combination improves seismic risk response. The IDA and UAV POS analysis are essential for earthquake preparedness and risk mitigation. This data-driven method informs lawmakers, urban planners, and disaster management authorities worldwide, improving earthquake engineering and catastrophe resilience programs. This work improves seismic threat assessment and masonry structure fortification, making earthquake-prone buildings safer. Thus, rural communities benefit from it.
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Designing Resilient Thin Shell Structures: A Comprehensive Approach to Extreme Loading Resistance in Building Foundations
(2025-03-01)
Nassir, Azizah Abdul
;
Min, Yee Hooi
;
Petchsasithon, Arthit
;
Senin, Syahrul Fithry
This study aims to explore the potential of thin shell structures as large foundations to improve flood resilience and enhance structural robustness. While thin shell structures have shown promise in resisting various loads, their application as foundations for buildings has not been fully investigated. Thus, this study focuses on designing the necessary reinforcement for a proposed thickness of 304mm. The reinforcement design follows Eurocode 2 guidelines, utilizing T32-300 as the main reinforcement rebar of the thin shell and 5T40 and 4T40 rebars for compression and tension of the ring beam, respectively. R12-150 links are incorporated for added strength and connectivity. This optimized design approach extends the application of thin shell structures beyond lightweight usage, making them viable for withstanding hydrodynamic and seismic loads. This advancement expands possibilities for architects and engineers and improves the resilience of buildings in flood-prone areas. Overall, this study presents a comprehensive design procedure for utilizing thin shell structures as large foundations, contributing to the development of resilient buildings capable of withstanding extreme conditions and safeguarding lives and infrastructure.

Petchsasithon, Arthit

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