Tampere

Anssi Laaksonen

Jukka Haavisto

Virpi Leivo

Contact persons

Jännebetonipilarin nurjahduskoe

Research groups

Concrete and Bridge Structures (in Finnish)

Metal and Lightweight Structures

Haavisto, J., Alho, H. &amp; Laaksonen, A. (2023). <a href="https://doi.org/10.1002/suco.202200501">Behavior of lap splices in reinforced concrete beams after bar yielding.</a> Structural Concrete, 24(4), 5245–5264.

.Kytölä, U., Tulonen, J., Asp, O., Nakari, T. &amp; Laaksonen, A. (2023). <a href="https://doi.org/10.1002/suco.202201212">Experimental study of moment redistribution before yielding in precast prestressed concrete beams made continuous.</a> Structural Concrete. Advance online publication.

Tulonen, J. &amp; Laaksonen, A. (2023). <a href="https://doi.org/10.1016/j.engstruct.2023.115606">Variable compression panel thickness for concrete members under bending and torsion: Experimental study.</a> Engineering Structures, 279, 115606

Kytölä, U., Tulonen, J. &amp; Laaksonen, A. (2022). <a href="https://doi.org/10.1002/suco.202100561">Longitudinal shear in the tension flanges of composite concrete beams made continuous.</a> Structural Concrete, 23(2), 1100–1117.

Asp, O., Tulonen, J., Kuusisto, L. &amp; Laaksonen, A. (2021). <a href="https://doi.org/10.1002/suco.202000351">Bond and re-anchoring tests of post-tensioned steel tendon in case of strand failure inside cement grouting with voids.</a> Structural Concrete, 22(4), 2373–2390.

Haavisto, J., Husso, A. &amp; Laaksonen, A. (2021). <a href="https://doi.org/10.1002/suco.202000428">Compressive strength of core specimens drilled from concrete test cylinders.</a> Structural Concrete, 22(S1), E683-E695.

Kytölä, U., Asp, O. &amp; Laaksonen, A. (2021). <a href="https://doi.org/10.1002/suco.202100043">Negative bending tests on precast prestressed concrete beams made continuous.</a> Structural Concrete, 22(4), 2223–2242.

Tulonen, J., Siitonen, T. &amp; Laaksonen, A. (2019). <a href="https://doi.org/10.1016/j.jcsr.2019.05.018">Behaviour of riveted stringer-to-floorbeam connections in cyclic load tests to failure.</a> Journal of Constructional Steel Research, 160, 101-109.

Peer-reviewed journal articles

Asp, O., Tulonen, J. &amp; Laaksonen, A. (2022). <a href="https://doi.org/10.18419/opus-12271">Bond and re-anchoring tests of post-tensioned steel tendon in case of strand failure.</a> Bond in Concrete : Bond, Anchorage, Detailing, 5th International Conference, Proceedings, 981-991.

Kytölä, U., Alho, H., Vuorela, M. &amp; Laaksonen, A. (2022). Restraint moment tests on precast prestressed beams made continuous. Paper presented at XXIV NRC Symposium,&nbsp;4 pp.

Haavisto, J. &amp; Laaksonen, A. (2021). <a href="https://urn.fi/URN:NBN:fi:tuni-202201111244">Test Results and Comparison to Code Equations on Lap Splice Strength of Reinforcement in RC beams.</a> Proceedings of the fib Symposium 2021, 887–896.

Peer-reviewed conference articles

Haavisto, J. &amp; Laaksonen, A. (2021). <a href="https://betoni.com/wp-content/uploads/2021/05/BET2102_92-99.pdf">Uutta tietoa raudoitusten limijatkosten lujuudesta ja muodonmuutoskyvystä.</a> Betoni, 91(2), 92-99.&nbsp;(in Finnish)

Haavisto, J., Filatoff, A., Kerokoski, O. &amp; Laaksonen, A. (2019). <a href="https://betoni.com/wp-content/uploads/2019/12/BET1904_80-87.pdf">Esijännitetty betonipilari - lisää kapasiteettia puristamalla pilaria ennalta.</a> Betoni, 89(4), 80-87. (in Finnish)

Articles in professional magazines

Recent publications

<ul>
	<li>Strong floor (6x12 m2)</li>
	<li>Loading pit (40 m)</li>
	<li>2x10t cranes</li>
	<li>8x1.0MN hydraulic cylinders</li>
	<li>8x0.5MN hydraulic cylinders</li>
	<li>Wide range of steel beams and threaded rods for load transferring</li>
	<li>Digital image correlation technology to determine surface displacements and strains</li>
	<li>Fiber optic measurement system to determine strains</li>
	<li>Displacement transducers and strain gauges</li>
</ul>

Equipment

Teräspalkkibetonisen sillan koekuormitus

Related infrastructures at Tampere University

Testing of Materials (Compression and Tensile Tests of Materials)

Testing of Structures (Loading Frames)

Large-scale structures laboratory includes strong floor and loading pit designed for conducting loading tests on structures with force levels of up to 8 MN. The research infrastructure also includes several hydraulic cylinders, load transfer structures, as well as measurement devices and sensors for assessing forces and deformation. These resources are shared collaboratively with two other research infrastructures in structural laboratory.

Large-Scale Structures Laboratory (Strong Floor, Loading Pit)