Study on the progressive collapse behavior of fully bolted RCS beam-to-column connections

Tang, Hongyuan; Deng, Xuezhi; Jia, Yigang; Xiong, Jingang; Peng, Chunmei

doi:10.1016/j.engstruct.2019.109618

Cited by 39 publications

(7 citation statements)

References 25 publications

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“…ALP method focused on the ability of structures to bridge the lost column. Based on ALP method, extensive tests on steel beam-column connections or sub-assemblages were carried out by using column removal assessment method (Li et al 2007;Sadek et al 2011;Alashker et al 2011;Dinu et al 2016;Dinu et al 2017;Liu et al 2015;Tang et al 2019;Dimopoulos et al 2020;Qian et al 2020;Wang et al 2020).…”

Section: Introductionmentioning

confidence: 99%

Effects of Steel Braces on Robustness of Steel Frames against Progressive Collapse

Qian

Lan

et al. 2021

J. Struct. Eng.

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External installation of steel braces is one of the effective approaches to increase the lateral load resistance of the steel moment-resisting frames. However, the effects of existence of steel braces on the robustness of steel moment-resisting frames to resist progressive collapse is still not clear as little study has been carried out. To fill this gap, in this paper, six multi-story steel moment-resisting subframes (three bare frames and three braced frames) were fabricated and tested. Test results indicated that the specimen with reduced beam section in the connection zone performed best among three types of connections, due to the guaranteed formation of plastic hinges at the location of reduced section and avoiding brittle fracture of weld at the connection. Experimental results proved that steel braces could increase the load resisting capacity by 45.1% and 83.9% of the frame with weld connection and end plate connection, respectively. As the gusset plate restricted the rotation of the plastic hinges in the second story of the braced frames with V-shaped bracing, which decreased its deformation capacity and degraded its catenary action capacity. Actually, the ultimate load of the braced frames with Vshaped bracing is only 87.5% of that of the counterpart without any braces. As the compressive braces were severe buckled before the displacement reached 0.4% of the beam span, it has little effects on yield load but increases the initial stiffness of the bare frames. Thus, majority of the benefits of the bracing system were attributed into the tensile braces. Moreover, the analytical results evaluated the differences in load resistance and development of load resisting mechanisms in different stories.Furthermore, the contribution of compressive and tensile braces was de-composed individually by analytical analysis.

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Section: Introductionmentioning

confidence: 99%

Effects of Steel Braces on Robustness of Steel Frames against Progressive Collapse

Qian

Lan

et al. 2021

J. Struct. Eng.

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“…In the past decade, relied on ALP method, extensive quasi-static tests were conducted to evaluate the mechanism of steel frames to resist progressive collapse (Lee et al 2010;Dinu et al 2016;Qin et al 2016;Dinu et al 2017;Tang et al 2019;Wang et al 2019;Gao et al 2017;Qian et al 2020a).…”

Section: Introductionmentioning

confidence: 99%

Behavior of Steel Moment Frames Using Top-and-Seat Angle Connections under Various Column-Removal Scenarios

Qian

Lan

et al. 2021

J. Struct. Eng.

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“…It has been established that the efficiency of using reinforcement with increased strength in compressed elements depends on the deformative characteristics of concrete under compression [9][10][11]. When the ultimate deformations of concrete in compression are greater than the deformations of the reinforcement, corresponding to the achievement of stresses equal to the physical or conventional yield strength, premature destruction of concrete from tensile forces caused by the loss of stability of compressed rods can occur.…”

Section: Introductionmentioning

confidence: 99%

Elimination of the effect of progressive collapse as a factor in increasing the environmental friendliness of district buildings

et al. 2021

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The work is devoted to the principle of designing residential quarters with the exclusion of building collapse according to the “domino” principle, ie. without the development of progressive collapse in the event of an accident. This principle increases the efficiency of the “green” development of the construction industry. The work provides real examples when the mistake of the architect of the improvement of the district cost the integrity of a large quarter, presents pictures of man-made disasters associated with the collapse of entire microdistricts. The text of the article is a study of methods and tools for designing buildings and structures, which, being combined into one quarter, will be able to maintain structural integrity in the event of a collapse of one of the components of such a residential building. The principles of calculating a reinforced concrete monolith that prevent progressive collapse are highlighted. Also, the text of the article contains the author’s nomogram, obtained empirically and confirmed by experiments.

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Study on the progressive collapse behavior of fully bolted RCS beam-to-column connections

Cited by 39 publications

References 25 publications

Effects of Steel Braces on Robustness of Steel Frames against Progressive Collapse

Effects of Steel Braces on Robustness of Steel Frames against Progressive Collapse

Behavior of Steel Moment Frames Using Top-and-Seat Angle Connections under Various Column-Removal Scenarios

Elimination of the effect of progressive collapse as a factor in increasing the environmental friendliness of district buildings

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