Results 11 to 20 of about 1,920 (213)
This paper proposes an analytical approach to predict compressive arch action (CAA) of precast reinforced concrete (PC) beams subjected to middle column removal scenario (MCRS). A beam-column joint with non-seismic detailing is employed in the prototype PC structures, which is a typical joint widely applied in low seismic-risk countries. However, under
Bao, Yintong, Tan, Kang Hai
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Instability Mechanism of Extraction Structure in Whole Life Cycle in Block Caving Mine
In the whole life cycle of the extraction structure in block caving mine from the beginning of roadways excavation to the end of ore drawing, there are many factors affecting the stability of the extraction structure.
Zhi-Yuan Xia, Zhuo-Ying Tan, Lei Zhang
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Analytical model for the capacity of compressive arch action of reinforced concrete sub-assemblages [PDF]
Compressive arch action (CAA) is a favourable structural mechanism to mitigate progressive collapse of reinforced concrete (RC) frames. To quickly and accurately predict the CAA capacity of RC sub-assemblages under a column-missing scenario, an engineering analytical model is proposed.
Yu, Jun, Tan, Kang Hai
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Simplified Compression Arch Action Model for R/C Beam-column Assemblages
A set of analytical equations are developed for calculating the beam-column assemblage flexure action capacity and compression arching action capacity under a middle column removal scenario. The suggested equations covered most of the main parameters affecting the assemblage behavior including seismic detailing, longitudinal reinforcement ratios ...
Ahmed N. Khater +3 more
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CALCULATED MODEL OF THE TRANSVERSE STRENGTH RESISTANCE OF REINFORCED CONCRETE BENDING ELEMENTS
Introduction. The paper presents the design solution of the computational model to the transverse strength resistance of reinforced concrete bending elements, taking into account the influence of bending moments.Materials and methods. The author analyzed
Y. V. Krasnoshchekov
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Two methodological approaches to assess the seismic vulnerability of masonry bridges
This work describes the seismic vulnerability assessment of a railway masonry arch bridge. Its conservation state is initially investigated by means of a thorough field and laboratory test campaign, comprising destructive and non-destructive tests.
Diego Maria Barbieri
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Flexural Behavior of Hybrid Composite Beam (HCB) Bridges
A new hybrid composite beam (HCB) has recently been used in the construction of three bridges in Missouri, USA. HCB consists of self-consolidating concrete (SCC) that is poured into classical arch shape and tied at the ends by steel tendons.
Mohamed A. Aboelseoud, John J. Myers
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For arch dam seismic safety evaluation, the finite element equivalent stress method has been widely used, and existing studies have realized mature equivalent stress calculation along the foundation surface path.
Hui Peng +3 more
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Stages of Resistance of Reinforced Concrete Frames in Accidental Design Situation
The study addresses the stress-strain state stages of reinforced concrete frames in zones of potential local collapse due to failure of a vertical element, such as a column or pylon.
Sergei Yu. Savin
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A static collapse experiment was carried out to study the progressive collapse resistance and failure mechanisms and modes of a 1/3-scale, 2×3-bay, and 2-story reinforced concrete frame with specially shaped columns subjected to middle column removal. A
Tiecheng Wang +3 more
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