On the effect of steel columns cross sectional properties on the behaviours when subjected to blast loading

Hadianfard, Mohammad Ali; Farahani, Ahmad; Bahadori-Jahromi, Ali

doi:10.12989/sem.2012.44.4.449

Cited by 16 publications

(11 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the case of strong axis response (Figure 1(b)), the vertical deformation of the top flanges δ top approximately equals the vertical deformation of the section centroid δ centroid . These typical deformations were also reported in previous studies (Astaneh-Asl, 2010;Hadianfard et al, 2012;Stewart, 2010) and one main aspect regarding this deformation is its effect on the member residual axial capacity. These previous studies included weak and strong axis loading scenarios, test results and simulations, but mainly for farfield blasts.…”

Section: I-sections Under Blast Loadingsupporting

confidence: 86%

Strong-axis response of steel I-sections subjected to close-in detonations

Grisaro

Seica

Packer

et al. 2020

International Journal of Protective Structures

View full text Add to dashboard Cite

The analysis of structural members subjected to close-in detonations involves a complicated dynamic scenario. Since the charge is very close to the structural member, the reflected pressure distribution on the member surface is highly non-uniform. In addition, the level of damage to the structural member may be high because of the large magnitude of the load. Due to these phenomena, the response of a structural member to close-in detonation cannot be accurately modelled by relatively simple methods like single-degree of freedom models, and more complicated models are required. Such models need to include numerical simulation of the detonation process, which produces a non-uniform pressure environment, allowing the pressure to reflect and flow around the member section. The local damage and flow around the section are especially of interest in I-shaped, or wide-flange-section members. Herein, the response of such sections is modelled by numerical simulations using a novel technique, which overcomes the difficulty of computation time, and is validated through various calculations. The model is used to perform a parametric study to investigate the response of I-sections subjected to close-in detonations, in terms of local damage and global behaviour, with scaled distances of 0.15–0.29 m/kg1/3 and loading causing flexure about the strong axis. Various aspects that affect the performance are studied, such as: the effect of scaled distance, the addition of welded stiffening plates between the flanges and web, the effect of boundary conditions and the effect of charge shape. Resulting local damage and residual deformations are assessed for the cases studied.

show abstract

Section: I-sections Under Blast Loadingsupporting

confidence: 86%

Strong-axis response of steel I-sections subjected to close-in detonations

Grisaro

Seica

Packer

et al. 2020

International Journal of Protective Structures

View full text Add to dashboard Cite

show abstract

“…Bridge columns have their share of blast interest and study [21]. Similar type of work was experimentally and numerically done to steel columns [22][23][24][25][26][27]. Also experimentally Aluminum foam panels were studied for close range explosions [28].…”

Section: Blast On Various Types Of Structuresmentioning

confidence: 99%

Review of Steel Stud Wall Systems Behavior under Blast Loads

Fotouh

Nawar

Amin

2020

The Egyptian International Journal of Engineering Sciences and

View full text Add to dashboard Cite

steel stud walls 2 nd blast loads 3 rd static resistance function 4 th dynamic analysis Blast threatening and blast event hazards increased dramatically on both scales of artificial and even those occurring unintentionally like accidents in sites highly exposed to such events like petrochemical facilities. Hence designing blast-proof structures to save lives of the occupants of these structures undergoing blast events became an important criterion. One side for achieving this purpose is designing resisting structures to such events. One of the most common types of structures that are widely used is steel stud wall panels. Steel stud wall systems (SSWSs) are a preferable alternative due to the structural and architectural merits of this system. Despite they are steel structures; they still have the advantages of light weight structures. Especially that the main structural members of the system, are usually made from cold formed steel with small sheet thicknesses. This research is fundamentally focused in providing literature view pertaining to previous works done to this point as research. At the end of the paper a conclusion is withdrawn that indicates some fields about the design of SSWSs that are not discussed yet nor investigated before and that are still valid for future works.

show abstract

“…Chan (2001) [3] presented a computer-based optimization technique for the design of tall hybrid mixed steel and concrete buildings. Hadianfard et al (2012) [4] investigated the behavior of steel columns subjected to blast loading and proved that the column sections and their elastic-plastic properties and boundary conditions are very important in resisting blast loading. Esmaeili et al (2013) [5] studied the seismic behavior of dual structural systems in forms of steel moment-resisting frames accompanied with either reinforced concrete shear walls or with concentrically braced frames, and showed that the system based on steel moment-resisting frames accompanied with reinforced concrete shear walls has a higher ductility and response modification factor and has more advantages over the other.…”

Section: Introductionmentioning

confidence: 99%

Seismic Evaluation of Mixed Steel and RC Columns in Hybrid High-Rise Buildings

Kontoni

Farghaly

2019

Archives of Civil Engineering

View full text Add to dashboard Cite

The growth in high-rise building construction has increased the need for hybrid reinforced concrete and steel structural systems. Columns in buildings are the most important elements because of their seismic resistance. Reinforced concrete (RC) columns and steel columns were used herein to form hybrid structural systems combining their distinct advantages. Eleven 3D building models subjected to earthquake excitation with reinforced concrete beams and slabs of 12 floors in height and with different distributions of mixed columns were analyzed by the SAP2000 software in order to investigate the most suitable distributions of a combination of reinforced concrete and steel columns. Top displacements and accelerations, base normal forces, base shear forces, and base bending moments were computed to evaluate the selected hybrid structural systems. The findings are helpful in evaluating the efficiency of the examined hybrid high-rise buildings in resisting earthquakes.

show abstract

On the effect of steel columns cross sectional properties on the behaviours when subjected to blast loading

Cited by 16 publications

References 8 publications

Strong-axis response of steel I-sections subjected to close-in detonations

Strong-axis response of steel I-sections subjected to close-in detonations

Review of Steel Stud Wall Systems Behavior under Blast Loads

Seismic Evaluation of Mixed Steel and RC Columns in Hybrid High-Rise Buildings

Contact Info

Product

Resources

About