Journal of South China University of Technology (Natural Science Edition) Vol.
The method goes through the steps of determining variables, determining optimization objectives, building models and programming, etc., using Rhino and Grasshopper to establish a simplified parametric model, importing Ladybug tools for performance analysis, and using Octopus tools for iterative multi-objective optimization based on the analysis results; During the optimization process, it can automatically change and simulate the parameterized part of the model, record and compare the results of each change and simulation, and finally find the parameters that best meet the set multiple objectives; Return the parameters to the parametric model to obtain the model with the best results and the corresponding building performance simulation results.
Journal of SouthChina University of Technology (Natural Science Edition), 2022,50 (7): 1-12.2.
Mechanical properties of high-strength circular steel tube confined high-strength steel reinforced concrete short columns under axial compression Kang Lan, Chen Zonglin, Lin Yiwei DOI: 10.12141/j.issn.1000-565X 210463 Abstract: In this study, axial compression tests were carried out on 9 steel tube confined steel reinforced concrete short columns, 1 steel tube confined concrete short column, and 1 steel tube confined concrete short column.
Quoted format: Kang Lan, Chen Zonglin, Lin Yiwei.
This study can provide scientific basis and data reference for practical engineering applications.
The results show that, compared with the original scheme, the scheme finally generated after the multi-objective optimization of the process has greatly improved the lighting uniformity, lighting effectiveness, glare occurrence possibility and solar radiation under the condition of meeting the lighting intensity requirements of the specification.
The method proposed in the paper is used for multi-objective optimization.
According to the requirements of major lighting specifications at home and abroad, the goal system is to make the lighting intensity meet the standard, the lighting uniformity meet the standard, the lighting effectiveness as large as possible, the possibility of glare as small as possible, and the solar radiation as small as possible.
50, 2022, Issue 7 Monthly, 1957 Civil Engineering and Building Engineering 1.
The failure modes of steel tube confined steel reinforced concrete short columns affected by important parameters such as steel tube yield strength, section steel yield strength, steel tube diameter thickness ratio, concrete strength grade, steel tube inner wall treatment, steel tube restraint mode, etc.
The waiting space of Guangzhou Baiyun Station is modeled.
The results show that the failure mode of high-strength circular steel tube confined high-strength steel reinforced concrete short column is overall shear failure, and there is no obvious local buckling on the surface of high-strength steel tube.
KANGLan, CHENZonglin, LINYiwei AxialCompression Behavior of High TrengthCircularSteelTubeConfinedHigh TrengthSteelReinferencedConcreteShortColumns [J].
The materials are used more fully, the ductility is better, and the constraint on core concrete is stronger.
About the author: Jiang Tao (1970 -), male, doctor, professor level senior engineer, mainly engaged in the theoretical research of green building and architectural design..
were analyzed, And the influence law on the axial compression bearing capacity and ductility.
The built-in high-strength steel tube effectively restricts the development of inclined cracks in concrete.
Mechanical properties of high-strength circular steel tube confined high-strength steel reinforced concrete short columns under axial compression [J].
The traditional skylight design method is difficult to solve the multi-objective problem consisting of complex lighting requirements and energy saving requirements.
The method proposed in this paper has a wide range of application scenarios and strong flexibility, which can provide reference for related research.
For circular steel tube confined steel reinforced concrete short columns, the ratio of test axial compression bearing capacity to simple superimposed axial compression bearing capacity is increased from 1.37 to 1.49, and the ductility coefficient is increased from 2.22 to 3.25 when high-strength steel tubes and high-strength steel sections are used compared with ordinary steel tubes and ordinary steel sections.
On the basis of Technical Standard for Concrete Filled Steel Tubular Structures (JGJ/T471-2019) and the results of parameter analysis in this paper, the modified formula of axial compression bearing capacity of high-strength circular steel tube confined high-strength steel reinforced concrete short columns is proposed by using the existing constitutive model of confined concrete without considering the maximum strength limit of confined concrete.
About the author: Kang Lan (1980 -), female, doctor, associate professor, mainly engaged in the research of steel structure and composite structure.
Multi objective optimization of flat and skylight of elevated railway passenger station Jiang Tao Luzhou DOI: 10.12141/j.issn.1000-565X Abstract: The elevated railway passenger station is usually a large-span building, which needs skylight.
In order to realize the multi-objective optimization of the flat skylight of the high-speed railway station, based on the preliminary design parameters of the flat skylight of the elevated high-speed railway station, a set of multi-objective optimization methods of the flat skylight based on genetic algorithm is constructed using Rhino and Grasshopper platforms, Ladybug building performance simulation tools, and Octopus multi-objective optimization tools.
Journal of South China University of Technology (Natural Science Edition), 2022-50 (7): 1-12.