scholarly journals Anchorage strength and ductility in shear tests

2021 ◽  
Vol 263 ◽  
pp. 02016
Author(s):  
Aleksandr Shuvalov ◽  
Igor Gorbunov ◽  
Mikhail Kovalev
Keyword(s):  
Cyclic Loading ◽  
Shear Loading ◽  
Seismic Loads ◽  
Cyclic Tests ◽  
Shear Tests ◽  
Cracked Concrete ◽  
Loading Pattern ◽  
Shear Loads ◽  
Loading Tests ◽  
Strength And Ductility

Article shows shear tests results for anchorage using bent foundation bolts 16, 24 and 36 mm in diameter and torque-controlled undercut anchors 12, 16 and 20 mm in diameter. Load-displacement diagrams were acquired for shear loads in static and dynamic cyclic tests in uncracked and cracked concrete. Cyclic loading pattern simulated seismic loads on anchors. Shear loading tests allowed to estimate influence of cracks and cyclic loading on strength and ductility of anchorage.

Behaviour of an Innovative Universal Structural Connection Under Monotonic and Cyclic Shear Loading

2009 ◽  
Author(s):  
S. V. Khonsari ◽  
G. L. England ◽  
A. R. Mohammadi
Keyword(s):  
Shear Deformation ◽  
Shear Loading ◽  
Deformation Capacity ◽  
High Shear ◽  
Cyclic Tests ◽  
Shear Tests ◽  
Efficient Manner ◽  
Cyclic Shear ◽  
Structural Connection ◽  
Very High

A new structural connection with special unique features was developed. While under bending it showed very high rotational capacity, in shear, unlike other existing connections, it also demonstrated a large shear deformation capacity. The ductile response of this connection stems from its innovative geometry as well as the ductility of the elements embedded in it. Since the previous shear tests on the specimens of this connection were carried out under ‘unrestricted’ conditions, the tests reported here were all under ‘restricted’ conditions. These shear tests consisted of ‘monotonic’ as well as ‘cyclic’ tests on mild steel specimens. Due to the restrictions imposed on the specimens during the test, the stiffness increased, compared with that of their unrestricted counterparts. Also, the transition from shear phase to tensile phase of deformation took place at an earlier stage compared with its non-restricted counterpart. The monotonic tests proved the high shear deformation capacity of the connection which exists alongside its high stiffness as well as strength. The cyclic tests, however, showed the large number of hysteresis cycles the specimens could endure before failure. Both types of tests, monotonic and cyclic, proved the ability of the connection to dissipate energy in shear under either loading regime in a very efficient manner.

scholarly journals TENSILE AND CYCLIC LOADING TESTS OF HORIZONTAL BRACE USING GLUED LAMINATED TIMBER WITH STEEL INSERTED PLATE

2019 ◽  
Vol 25 (60) ◽  
pp. 655-659
Author(s):  
Shuzo HIROISHI ◽  
Akira OKADA ◽  
Naoya MIYASATO ◽  
Noburu NAKAMURA ◽  
Kenichi MAMURO ◽  
...  
Keyword(s):  
Cyclic Loading ◽  
Glued Laminated Timber ◽  
Loading Tests ◽  
Cyclic Loading Tests

scholarly journals Studi Eksperimental: Perilaku Siklik Anticompression Split-K Braced Steel Frame

2020 ◽  
Vol 14 (2) ◽  
pp. 143-153
Author(s):  
Oksa Eberly ◽  
◽  
Sri Murni Dewi ◽  
Wisnumurti Wisnumurti ◽  
◽  
...  
Keyword(s):  
Steel Frames ◽  
Cyclic Strength ◽  
Steel Frame ◽  
Lateral Loads ◽  
Cyclic Tests ◽  
Initial Stiffness ◽  
Loading Tests ◽  
Quasistatic Loading ◽  
Cyclic Loading Tests ◽  
Good Behaviour

This paper presents an experimental study on the behaviour of a braced steel frame with a proposed system: anticompression brace system (ABS) subjected to cyclic lateral loads. The ABS is proposed to deal with common brace buckling problems. In the study, split-K braced steel frames: with ABS and with ordinary brace system (OBS) were used as speciments. Cyclic loading tests were conducted to evaluate the performance of the proposed system in preventing the brace to buckle and to obtain the behaviour of the frame with ABS compared to the frame with OBS under cyclic quasistatic loading. From the cyclic tests, it was observed that the proposed system worked in preventing the braces to buckle, hence, the aimed state, “buckling prevention” was achieved. The results of the study also show that the frame with ABS had a lower initial stiffness compared to the frame with OBS, nevertheless, after exceeding drift ratio of 0.85% based on raw data or 0.64% based on fitted-curves, the frame with ABS exhibited good behaviour through lower degradations in stiffness and cyclic strength relative to the frame with OBS that experienced sudden and greater degradations.

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