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Study on shear performance of cold-formed thin-walled steel-paper straw board composite wall with openings

Zhang Xiuhua, Xu Shuijing, Li Siyu

Archives of Civil Engineering

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2023

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Vol. 69, nr 1

571--591

EN

To explore the application of cold-formed thin-walled steel-paper straw board(CTSPSB) composite wall in practical engineering and further meet people’s living requirements, it was proposed to open holes in the composite wall to simulate the doors and windows in practical applications. Two composite wall specimens were tested to study the shear performance of the CTSPSB composite wall. Through the analysis of specimens’ damage forms and experimental data, the characteristic values of bearing capacity and lateral stiffness were obtained. And then, the model of the composite wall was built by ANSYS, and finite element analysis (FEA) results were consistent with the experimental results, which could verify the feasibility of the finite element model. Moreover, the model needed to open holes and extensive parameter analysis was carried out. The FEA results indicate the most reasonable distance between screws around the opening is 150 mm; the most suitable spacing between the small studs is 400 mm; the position of the opening has the least influence on the shear performance, and the difference between the results of the five groups of models is within 5%; while the width of the opening has the greatest impact on the shear performance. Compared with the wall without opening, the bearing capacity of the wall with an opening width of 600 mm, 1200 mm and 1800 mm decreases by 38%, 46% and 52% respectively. Besides, the calculation formula of shear capacity of CTSPSB composite wall with openings was improved, which could be used as experience for practical engineering.

2

Przegrody kolektorowo-akumulacyjne

Szyszka Jerzy

Builder

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2020

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R.24, nr 1

48--51

PL

W artykule omówiono wybrane koncepcje przegród kolektorowych w kontekście ich efektywności cieplnej. Wskazano właściwości, które powinny charakteryzować ściany słoneczne, aby można było stosować je w warunkach klimatu występującego w Europie Centralnej i Wschodniej.

EN

The article discusses selected concepts of collector-storage walls in the context of their thermal efficiency. The properties that should characterize the solar walls were indicated so that they could be used in the conditions of climate occurring in Central and Eastern Europe.

3

Analysis of composite shear walls with a gap between reinforced concrete wall and steel frame

Bahrami Alireza, Yavari Mojtaba

Archives of Civil Engineering

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2020

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Vol. 66, nr 1

41--53

EN

In this research, nonlinear analysis of composite shear walls (CSWs) with a gap between reinforced concrete wall and steel frame is investigated under cyclic loading by the use of the finite element method (FEM) software ABAQUS. For the purpose of the verification, an experimental test is modelled and comparison of its obtained result with that of the experimental test demonstrates an inconsiderable difference between them; therefore, the reasonable accuracy of the modelling is revealed. Then, effects of different parameters on the behaviour of the CSWs are examined. Gap size between reinforced concrete wall and steel frame, reinforcement percentage, steel sections of beams and columns, and existence of reinforced concrete wall are considered as parameters. It is concluded that change of the parameters affects the ultimate strength, ductility, and energy dissipation of the system. A steel shear wall (SSW) is also modelled and compared with the CSWs. Buckling of the walls is presented as well.