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Experimental and numerical study regarding h-steel all-bolted connection steel frame with composite wall boards

Earthquake Engineering and Engineering Vibration 2024年第2期23卷 427-443页

作者： Fan Min Guo hongchao Li Shen Wang Zhenshan Wang huaqiang School of Civil Engineering and Architecture Xi’an University of TechnologyXi’an 710048China State Key Laboratory Base of Eco-hydraulic Engineering in Arid Area Xi’an University of TechnologyXi’an 710048China

h-steel all-bolted connection steel frame structures with heat preservation and decoration composite wall boards were investigated and the seismic performances of three scaled specimens were *** failure modes,hysteresis curves,bearing capacity,ductility,energy dissipation capacity,stiffness degradation and strain distribution were *** calculation method of structural theoretical internal force was *** results showed that the overall structural seismic performance was better,and the structural ductility met the demands of elastic-plastic inter-story drift angle for seismic *** h-steel weak-axis connection structure obtained better energy dissipation capacity,and its bearing capacity and stiffness were slightly different from the strong-axis *** heat preservation and decoration performance of composite wallboard and the all-bolted connection of the steel frame realized prefabrication during the whole construction *** plastic hinge of the steel beam can be moved outwards because of the L-angles,which effectively avoids stress concentration in joint areas and expands the plastic hinge *** errors between the theoretical structural capacity calculated by the plastic analysis method and the test results were within 2.44%.In addition,structural failure mechanisms and bearing capacities were verified by the finite element(FE)analysis,and the effects of the main parameters on the structures were *** FE verification results were the same as in the *** research results provide theoretical support and technical guidance for the application of thermal insulation and decorative composite wall panels in h-shaped steel all-bolted steel frames.

关键词： composite wall boards all-bolted steel frame h-steel low-cyclic loading failure modes

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Experimental research on shear carrying capacity of h-steel concrete composite beam with small shear span ratio

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Journal of harbin Institute of Technology(New Series) 2010年第3期17卷 398-400页

作者：王钧赵天石谢恒燕郑文忠 School of Civil Engineering Harbin Institute of Technology School of Civil Engineering Northeast Forestry University College of Engineering Heilongjiang August First Land Reclamation University

In order to investigate shear carrying capacity of h-steel concrete beam with small shear span ratio,shear test on 5 h-steel concrete composite beams with small span ratio (from 0.7 to 1.1) are reported,including test design,test scheme,test method,failure characteristics and test results. Influences of shear span ratio,web of h steel and concrete on shear carrying capacity of this kind of beam are investigated. The main components comprising shear bearing capacity are analyzed. The results show that with the shear span ratio increasing,the contribution of web of h steel and concrete on shear carrying capacity decrease. Based on test data,the calculation formula of shear carrying capacity for this beam is established by curve fitting.

关键词： concrete h-steel composite beam,shear span ratio shear carrying capacity

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