Lateral Stress Characteristics of Steel Structure Wall Module Exerted by Self-Compacting Concrete
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RESEARCH PAPER
Lateral Stress Characteristics of Steel Structure Wall Module Exerted by Self‑Compacting Concrete Wei Wu1,2 · Xiaozhao Li1 Received: 8 October 2018 / Accepted: 21 July 2020 / Published online: 6 October 2020 © Shiraz University 2020
Abstract Steel structure wall modules are widely used in many assembly engineering projects. Self-compacting concrete is used for pouring in steel structure wall modules for its high fluidity. Deformation data were collected when monitoring the displacement and the strain change of modular structure while pouring SCC in the module. Based on the data, the stress and deformation characteristics of the module steel structure were found, which provide reference for other similar project constructions. Keywords Self-compacting concrete · Structure module · Lateral stress · Monitoring data
1 Introduction In the modular construction of the project, the large steel structure module has been commonly used. The steel structure module is also named by metal plate shear walls, which represent an effective, practical and economical system for the seismic protection of existing RC-framed buildings. Such a system has been largely adopted in the last few years, first in North America and Japan. The characteristics of this structure have been studied in detail in some articles (Formisano et al. 2007; Formisano et al. 2008; Formisano et al. 2016; De Matteis and Brando 2016; Brando and De Matteis 2014). The ordinary concrete cannot meet the needs of concrete poured in its interior for its complex structure. To complete the structure, the self-compacting concrete (SCC) has been primarily employed in engineering practice. SCC is a type of concrete exhibiting high fluidity; it is developed for several reasons: reduced manpower, improved working conditions, noise ending caused by vibration, etc. (Vanhove et al. 2004; Djelal et al. 2002; Bakhtiarain 2011; Koehler et al. 2007; Kim et al. 2012). It is capable of fully relying on its own
* Wei Wu [email protected] 1
School of Earth Sciences and Engineering, Nanjing University, Nanjing 210023, China
Shanghai Nuclear Engineering Research and Design Institute Co., Ltd, Shanghai 200233, China
2
gravity and filling the inner space of the template without being vibrated. SCC differs from ordinary concrete primarily for being a high-fluidity construction technology, also making the lateral stress on the side plate wall different from the ordinary concrete. The overestimated pressure leads to excess formwork costs, and the underestimated pressure may cause structural elements to deform or the formwork to collapse. The use of SCC has been progressively accepted by the public, and the lateral stress that can be developed on the vertical formwork systems in construction practice should be clarified. Recently, it is well established that concrete consistency, method of placement and consolidation, type of cement, temperature of concrete, maximum aggregate size, head of concrete, pore water pressure, rate of placement and size and shape of the fo
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