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IntechOpen

Imagens Acesso aberto

... a five storey building. There are eighty four columns on the ground floor. Each succeeding storey decreases in size with fifty-six columns on the first floor, twenty on the second, ...

0000 - Gale Group | NCCO Photography

Artigo Acesso aberto Revisado por pares

Imad El Khouri, Reyes Garcia, Petru Mihai, Mihai Budescu, Nicolae Țăranu, Ionuţ-Ovidiu Toma, Maurizio Guadagnini, David Escolano‐Margarit, Ioana-Sorina Enţuc, Gabriel Oprişan, Iman Hajirasouliha, Kypros Pilakoutas,

Failure of short columns in concrete buildings has been extensively reported during past earthquakes. Assessing the behaviour of short columns is challenging and often requires using time-consuming ... This article presents a new and practical Short Column Macro Element (SCME) that predicts accurately the behaviour of concrete short columns. A 1/3-scale one-storey building with short columns is subjected to lateral loading tests until failure. ... to determine the load path within the short column. Based on these data, a new strut-and- ...

Tópico(s): Concrete Corrosion and Durability

2024 - Elsevier BV | Engineering Structures

Imagens Acesso aberto

... a five storey building. There are eighty four columns on the ground floor. Each succeeding storey decreases in size with fifty-six columns on the first floor, twenty on the second, ...

0000 - Gale Group | NCCO Photography

Artigo Acesso aberto Revisado por pares

Yongjiang Wu, Zhengzheng Cao, Zhenhua Li, Feng Du, Wenqiang Wang, Zhai Ming-lei, Hong Zijie, Yi Xue,

... rule and water inrush mechanism of the collapse column, a multi-field coupled mechanical model for water inrush disasters caused by the collapse column is established in this paper, on the basis ... mine. The mechanical model is composed of internal column elements within the collapse column and surrounding rock masses. The research focuses on the seepage evolution rule in the roof collapse column under different mining conditions and investigates the permeation instability mechanism of collapse column based on the transition of flow state. The ...

Tópico(s): Geomechanics and Mining Engineering

2024 - Nature Portfolio | Scientific Reports

Imagens Acesso aberto

... a five storey building. There are eighty four columns on the ground floor. Each succeeding storey decreases in size with fifty-six columns on the first floor, twenty on the second, ...

0000 - Gale Group | NCCO Photography

Artigo Acesso aberto Revisado por pares

Ahmed Hamoda, Ramy I. Shahin, Mizan Ahmed, Aref A. Abadel, Abedulgader Baktheer, Saad A. Yehia,

Reinforced concrete columns may need to be strengthened to support additional load arising from structural upgrades of existing structures or for ... experimental and numerical study on strengthening reinforced concrete columns by innovative exterior bonding of SSP strips. A total of nine reinforced concrete column specimens are experimentally tested under axial compression loading to failure. The columns are strengthened using two different innovative techniques namely ... stainless-steel plates to the exterior of the columns in flat as well as spirally wrapped around ...

Tópico(s): Concrete Corrosion and Durability

2024 - Elsevier BV | Structures

Imagens Acesso aberto

Photograph of columns in the gudha mandapa of the Surya Temple at Modhera, taken by Henry Cousens in the 1880s, from ... is a view of some of the tall columns in the closed hall. The columns, arranged in ...

0000 - Gale Group | NCCO Photography

Artigo Revisado por pares

Tadesse G. Wakjira, M. Shahria Alam,

... the performance-based seismic design (PBSD) of UHPC columns. This gap is especially evident in the scarcity of research focused on the PBSD of UHPC columns. Therefore, this study aims to develop an explainable ... the drift ratio limit states of UHPC bridge columns across four damage states. To achieve this, a ... validated against large-scale experimental results of UHPC columns tested under reverse cyclic loading. The Latin hypercube ... to generate a comprehensive database of UHPC bridge columns (10,000 UHPC columns), considering uncertainties across a ...

Tópico(s): Structural Health Monitoring Techniques

2024 - Elsevier BV | Engineering Structures

Imagens Acesso aberto

Albumen Print of Ossyride Columns. Headless Columns, It Is Said That an Attempt Was Made by Cambyses to Destroy These Columns, but Only the Heads Were Thrown off. One ...

0000 - Gale Group | NCCO Photography

Artigo Acesso aberto Revisado por pares

Liaqat Ali, Haytham F. Isleem, Alireza Bahrami, Ishan Jha, Guang Zou, Rakesh Kumar, Abdellatif M. Sadeq, Ali Jahami,

... study investigates the structural behaviour of double-skin columns, introducing novel – double-skin double filled tubular (DSDFT) columns, which utilize dual steel tubes and concrete to ... ductility beyond conventional double-skin hollow tubular (DSHT) columns, employing a combination of finite element model (FEM) ... machine learning (ML) techniques. A total of 48 columns (DSHT+DSDFT) were created to examine the impact ... the load-carrying capacity and ductility of the columns. The results were validated against the experimental findings ...

Tópico(s): Concrete Corrosion and Durability

2024 - Elsevier BV | Composites Part C Open Access

Imagens Acesso aberto

Photograph of columns inside a deserted temple in the village of Aihole, Bijapur district, taken by James Burgess around 1874. Aihole ... varied forms that show different architectural influences. The columns in this photograph have elaborate polygonal shafts decorated ...

0000 - Gale Group | NCCO Photography

Artigo Revisado por pares

D.A. Abdoh,

... structures depends primarily on the strength of beam-column connections. The paper presents a new and novel ... to study the fracture behavior of steel beam-column welded connections. The mesh-free nature of the ... deformation results with experimental data from several beam-column welded connections. According to the proposed model, there ... two conditions for the failure of steel beam-column welded connections as follows: 1) crack propagation in the steel elements (beam or column) or bonds’ breakage in the welding zone (welding ...

Tópico(s): Fire effects on concrete materials

2024 - Elsevier BV | Engineering Failure Analysis

Imagens Acesso aberto

Photograph of a close view of the columns and capitals in the interior of the Buddhist rock-cut Chaitya Hall, Cave 8 at Karli, taken by Alexander E. Caddy in 1895 ...

0000 - Gale Group | NCCO Photography

Artigo Acesso aberto Revisado por pares

Muhammad Zeeshan, Pia Schumann, Silke Pabst, Aki Sebastian Ruhl,

... for the first time. In parallel, four sand column systems were operated with groundwater and continuously spiked ... of 1 μg/L for 24 OMP. Each column system consisted of two sand columns connected in series. Presumably, biological activities in the first column were higher than in the second column, as dissolved oxygen utilization, dissolved organic matter (DOM) ... UV254) reduction rates were high in the first column. This study revealed that 9 out of 24 ... with adaption was high in the bioactive sand columns. However, 8 OMP showed improved elimination at high ...

Tópico(s): Wastewater Treatment and Nitrogen Removal

2023 - Elsevier BV | Heliyon

Imagens Acesso aberto

... Force, one of three British Anglo-Indian army columns deployed in the Second Afghan War (1878-80), ... led them to invade Afghanistan.Of the three columns moving simultaneously into three approaches into Afghanistan, the ...

0000 - Gale Group | NCCO Photography

Artigo Revisado por pares

Chao Li, Yiwei Xiang, Chenzhi Cai,

Precast segmental column has attracted a lot of research interests in recent years due to its numerous advantages. This study proposed a new seismic resilient precast segmental column with damage controllable and repairable designs. The special designs limited the damages of the column within a pre-determined plastic hinge region while keeping the other parts of the column damage-free. Also, internal energy dissipation (ED) bars ... used instead of steel tendons. One precast segmental column with traditional designs was also tested as a ...

Tópico(s): Concrete Corrosion and Durability

2023 - Elsevier BV | Engineering Structures

Imagens Acesso aberto

... a stepped plan. In the closed hall, tall columns arranged in an octagon support the corbelled roof. The columns are richly carved with miniature figures of divinities ...

0000 - Gale Group | NCCO Photography

Artigo Acesso aberto Revisado por pares

Bahaa Hussain Al-Abbas, Zainab M. R. Abdul Rasoul, Dhafer M. Hasan, Sajjad E. Rasheed,

... have largely been utilized as bridge piers or columns in high-rise buildings, resulting in increased strength and decreased column size. This study examined the experimental performance of steel tube columns filled with reactive powder concrete (RPC) under axial compression. Three sets of columns were used in the experiment, each with variations ... the RPC. The first set consisted of five columns, while the second and third sets each had seven columns with three different lengths (750 mm, 600 mm, ... to calculate the ultimate failure load of the columns by considering factors such as the yield strength ...

Tópico(s): Innovative concrete reinforcement materials

2023 - Salehan Institute of Higher Education | Civil Engineering Journal

Imagens Acesso aberto

... s porch in a semi-ruinous condition. The columns are elaborately carved with niches containing Jain tirthankharas ... of ganas decorate the brackets. Some of the columns have inscriptions on their shaft. Photographer: Unknown.

0000 - Gale Group | NCCO Photography

Artigo Revisado por pares

Yajie Wu, He-Shou Lin, Lei Wang, Qifang Xie, Lipeng Zhang,

... support interface on the lateral performance of rocking columns in traditional Chinese timber structures. Six half-scaled timber column specimens, characterized by stone bases or timber bases, ... support stiffness, the damage mode of timber rocking columns shifted from slight parallel to grain deformation at column bottom to significant perpendicular to grain deformation at ... significantly influenced the lateral performance of timber rocking columns. The peak load of a column resting on a stone base was about 80% ...

Tópico(s): Structural Behavior of Reinforced Concrete

2023 - Elsevier BV | Structures