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Pettersson, Lars
Publications (9 of 9) Show all publications
Sremac, S., Wang, F., Wolkowicz, H. & Pettersson, L. (2019). Noisy Euclidean Distance Matrix Completion with a Single Missing Node. Journal of Global Optimization
Open this publication in new window or tab >>Noisy Euclidean Distance Matrix Completion with a Single Missing Node
2019 (English)In: Journal of Global Optimization, ISSN 0925-5001, E-ISSN 1573-2916Article in journal (Refereed) Submitted
Abstract [en]

We present several solution techniques for the noisy single source localization problem, i.e. the Euclidean distance matrix completion problem with a single missing node to locate under noisy data. For the case that the sensor locations are fixed, we show that this problem is implicitly convex, and we provide a purification algorithm along with the SDP relaxation to solve it efficiently and accurately. For the case that the sensor locations are relaxed, we study a model based on facial reduction. We present several approaches to solve this problem efficiently, and we compare their performance with existing techniques in the literature. Our tools are semidefinite programming, Euclidean distance matrices, facial reduction, and the generalized trust region subproblem. We include extensive numerical tests.

National Category
Natural Sciences
Identifiers
urn:nbn:se:kth:diva-247942 (URN)10.1007/s10898-019-00825-7 (DOI)000496694500004 ()2-s2.0-85071485649 (Scopus ID)
Note

QS 20190403

Available from: 2019-03-28 Created: 2019-03-28 Last updated: 2019-12-19Bibliographically approved
Wadi, A., Pettersson, L. & Raid, K. (2018). FEM simulation of a full-scale loading-to-failure test of a corrugated steel culvert. Steel and composite structures, 27(2), 217-227
Open this publication in new window or tab >>FEM simulation of a full-scale loading-to-failure test of a corrugated steel culvert
2018 (English)In: Steel and composite structures, ISSN 1229-9367, E-ISSN 1598-6233, Vol. 27, no 2, p. 217-227Article in journal (Refereed) Published
Abstract [en]

This paper utilizes 3D FEM to provide deeper insights about the structural behaviour of a 6.1 m span steel culvert, which was previously tested under extreme loading. The effect of different input parameters pertaining to the backfill soil has been investigated, where the structural response is compared to field measurements. The interface choice between the steel and soil materials was also studied. The results enabled to realize the major influence of the friction angle on the load effects. Moreover, the analyses showed some differences concerning the estimation of failure load, whereas reasons beyond this outcome were arguably presented and discussed.

Place, publisher, year, edition, pages
Korea: , 2018
Keywords
flexible culvert, soil-steel composite bridge, corrugated steel, finite element model, ultimate limit state, failure test
National Category
Infrastructure Engineering
Research subject
Civil and Architectural Engineering
Identifiers
urn:nbn:se:kth:diva-226688 (URN)10.12989/scs.2018.27.2.217 (DOI)000430652600008 ()2-s2.0-85049387239 (Scopus ID)
Note

QC 20180514

Available from: 2018-04-25 Created: 2018-04-25 Last updated: 2018-11-30Bibliographically approved
Veganzones Muñoz, J. J., Pacoste-Calmanovici, C., Pettersson, L. & Karoumi, R. (2018). Influence of Edge Beam on Behavior of Bridge Overhangs. ACI Structural Journal, 115(4), 957-970
Open this publication in new window or tab >>Influence of Edge Beam on Behavior of Bridge Overhangs
2018 (English)In: ACI Structural Journal, ISSN 0889-3241, E-ISSN 1944-7361, Vol. 115, no 4, p. 957-970Article in journal (Refereed) Published
Abstract [en]

Recently, a solution without edge beam was presented to reduce life cycle costs in bridges. Because bridge edge beams contribute to an increased load capacity of overhang slabs, the loss of robustness of the overhang should be investigated. The aim of this paper is to investigate and quantify the influence of the edge beam on the structural behavior of overhang slabs. A nonlinear, three-dimensional (3-D) finite element model was developed and validated using experimental data. Failure modes as well as the shearing and bending moment capacities were determined. An assessment of existing design methods is also presented. The results show the edge beam has a significant contribution to the load capacity. Specifically, the shear force is more efficiently distributed for concentrated loads near the free edge. Design methods should be reviewed to account for the edge beam's influence in the load-bearing capacity of the overhang slab.

Place, publisher, year, edition, pages
American Concrete Institute, 2018
Keywords
bending moment, bridge edge beam, bridge overhang, cantilever, distribution width, failure mode, finite element, shear force, structural analysis
National Category
Applied Mechanics
Identifiers
urn:nbn:se:kth:diva-232233 (URN)10.14359/51702225 (DOI)000436975000005 ()2-s2.0-85049724986 (Scopus ID)
Note

QC 20180720

Available from: 2018-07-20 Created: 2018-07-20 Last updated: 2018-07-25Bibliographically approved
Du, G., Pettersson, L. & Karoumi, R. (2018). Soil-steel composite bridge: An alternative design solution for short spans considering LCA. Journal of Cleaner Production, 189, 647-661
Open this publication in new window or tab >>Soil-steel composite bridge: An alternative design solution for short spans considering LCA
2018 (English)In: Journal of Cleaner Production, ISSN 0959-6526, E-ISSN 1879-1786, Vol. 189, p. 647-661Article in journal (Refereed) Published
Abstract [en]

In a bridge project, several alternative design solutions can be functionally equivalent for the designated location. Today's bridge constructions highly rely on the non-renewable resources, the consumption of fossil fuels, and the intensive usage of concrete. This urges designers to explore the new design options to mitigate the associated environmental burdens. When comparing to the concrete slab frame bridges (CFB), the soil-steel flexible culverts (or soil-steel composite bridge, SSCB) show advantages in ease erection, low maintenance as well as the competitive cost. However, its environmental performance has never been studied. This paper intends to compare the environmental performance of these two bridge types through the whole life cycle, based on 8 selected cases in Sweden. Unlike previous studies only limited to few impact indicators, this study comprehensively covers a wide range of indicators: including eleven types of mid-point impact categories, the cumulative energy demand (CED) and the associated cost. The construction phase, which seldom included previously, is a specific focus in this paper. The results find that: 1) the SSCBs show advantages over the CFBs in most of the investigated indicators; 2) the construction phase, when explicitly evaluated, may take up to 34% of the total life cycle environmental burdens; 3) the environmental performance of a bridge is closely linked with the bridge type selection, multiple indicators in the environmental domain, designers' preference, the construction phase, as well as the time schedule constraints.

Place, publisher, year, edition, pages
ELSEVIER SCI LTD, 2018
Keywords
Soil-steel composite bridge, Steel flexible culvert, Life cycle assessment, Bridge LCA, CO2 emission, Sustainable construction, Global warming
National Category
Environmental Management
Identifiers
urn:nbn:se:kth:diva-231177 (URN)10.1016/j.jclepro.2018.04.097 (DOI)000432771000058 ()2-s2.0-85047923889 (Scopus ID)
Note

QC 20180718

Available from: 2018-07-18 Created: 2018-07-18 Last updated: 2019-08-20Bibliographically approved
Wadi, A. & Pettersson, L. (2018). Structural response of a high profile arch flexible culvert in sloping terrain using finite element modeling. In: : . Paper presented at The Transportation Research Board (TRB) 97th Annual Meeting, anuary 13–17, 2019, at the Walter E. Washington Convention Center, in Washington, D.C.. Washington, DC
Open this publication in new window or tab >>Structural response of a high profile arch flexible culvert in sloping terrain using finite element modeling
2018 (English)Conference paper, Published paper (Refereed)
Abstract [en]

Flexible culverts are generally considered cost-effective structures for their simplicity in construction and the short time involved in the erection process. This has constantly motivated practitioners to explore the different areas of application including their performance in sloping environment. Yet, the complex nature of the interaction between the soil and steel materials marks a challenge, where the performance of these structures is fundamentally influenced by the quality of the backfill soil and its configuration around the conduit/arch. Surface slopes may affect the structural response by inducing an asymmetrical soil support and an unbalanced earth loading.

The use of numerical simulation is utilized to provide insights about the performance of flexible culvert in sloping environment, where a case study of a high profile arch is investigated under different construction schemes. The paper focuses mainly on predicting the structural behavior of soil loading effects. The study includes the influence of different slopes in combination with various depths of soil cover.

The results enabled to realize the importance of soil configuration around the steel arch and its influence on the structural response. While the presence of surface slopes emphasizes the susceptibility of flexible culverts with low depths of soil cover, higher covers may help in reducing the effect of steep slopes. Sectional forces were found to increase with the increase of surface slopes. The study also highlighted recent research efforts on the topic and briefly discussed some design implications when building flexible culverts in sloping terrain.

Place, publisher, year, edition, pages
Washington, DC: , 2018
Keywords
flexible culvert, sloping terrain, finite element method, soil‒steel composite bridge, avalanche load, snowshed
National Category
Infrastructure Engineering
Research subject
Civil and Architectural Engineering
Identifiers
urn:nbn:se:kth:diva-239296 (URN)
Conference
The Transportation Research Board (TRB) 97th Annual Meeting, anuary 13–17, 2019, at the Walter E. Washington Convention Center, in Washington, D.C.
Note

QCR 20181129

Available from: 2018-11-19 Created: 2018-11-19 Last updated: 2018-11-29Bibliographically approved
Leander, J., Amer, W. & Pettersson, L. (2017). Fatigue testing of a bolted connection for buried flexible steel culverts. In: Arkadiusz Madaj, Iwona Jankowiak (Ed.), Archives of Institute of Civil Engineering: . Paper presented at Buried Flexible Steel Structures, 3rd European Conference (pp. 153-162). , 23
Open this publication in new window or tab >>Fatigue testing of a bolted connection for buried flexible steel culverts
2017 (English)In: Archives of Institute of Civil Engineering / [ed] Arkadiusz Madaj, Iwona Jankowiak, 2017, Vol. 23, p. 153-162Conference paper, Published paper (Refereed)
Abstract [en]

A fatigue assessment of steel structures based on the safe life approach requires a detail category representing the fatigue strength. For flexible culverts there are no matching details in the governing regulations. In this paper the testing and evaluation of the fatigue strength of a standardized bolted connection for steel culverts are presented. A test rig was designed to mimic the in-service conditions with a combination of bending moment and axial force. A total of ten specimens was tested to failure. The failure was governed cracks initiating at the indentations from the bolt heads and propagated towards the nearest edge. From the test results, an S-N curve has been derived suggesting a characteristic fatigue strength of 124 MPa at 2 million cycles and a slope of 5 in log-log scale.

National Category
Civil Engineering
Identifiers
urn:nbn:se:kth:diva-219451 (URN)
Conference
Buried Flexible Steel Structures, 3rd European Conference
Note

QC 20171218

Available from: 2017-12-06 Created: 2017-12-06 Last updated: 2018-02-28Bibliographically approved
Pettersson, L. & Wadi, A. (2017). Structural Capacity of Existing Buried Flexible Culverts. Swedish Design Methodology. In: Archives of Institute of Civil Engineering: . Paper presented at III European Conference on Buried Flexible Steel Structures, Rydzna, Poland (pp. 229-236). Poland: Wydawnictwo Politechniki Poznanskiej, 23
Open this publication in new window or tab >>Structural Capacity of Existing Buried Flexible Culverts. Swedish Design Methodology
2017 (English)In: Archives of Institute of Civil Engineering, Poland: Wydawnictwo Politechniki Poznanskiej , 2017, Vol. 23, p. 229-236Conference paper, Published paper (Refereed)
Place, publisher, year, edition, pages
Poland: Wydawnictwo Politechniki Poznanskiej, 2017
National Category
Infrastructure Engineering
Identifiers
urn:nbn:se:kth:diva-226703 (URN)10.21008/j.1897-4007.2017.23.21 (DOI)
Conference
III European Conference on Buried Flexible Steel Structures, Rydzna, Poland
Note

QC 20180515

Available from: 2018-04-25 Created: 2018-04-25 Last updated: 2018-05-15Bibliographically approved
Pettersson, L., Wadi, A. & Williams, K. (2017). Structural Design of Flexible Culverts Development Trends. In: Archives of Institute of Civil Engineering: . Paper presented at III European Conference on Buried Flexible Steel Structures, Rydzna, Poland (pp. 237-250). Poland: Wydawnictwo Politechniki Poznanskiej, 23
Open this publication in new window or tab >>Structural Design of Flexible Culverts Development Trends
2017 (English)In: Archives of Institute of Civil Engineering, Poland: Wydawnictwo Politechniki Poznanskiej , 2017, Vol. 23, p. 237-250Conference paper, Published paper (Refereed)
Place, publisher, year, edition, pages
Poland: Wydawnictwo Politechniki Poznanskiej, 2017
National Category
Infrastructure Engineering
Identifiers
urn:nbn:se:kth:diva-226701 (URN)10.21008/j.1897-4007.2017.23.22 (DOI)
Conference
III European Conference on Buried Flexible Steel Structures, Rydzna, Poland
Note

QC 20180515

Available from: 2018-04-25 Created: 2018-04-25 Last updated: 2018-05-15Bibliographically approved
Wadi, A., Pettersson, L. & Karoumi, R.On predicting the ultimate capacity of a large-span soil-steel composite bridge.
Open this publication in new window or tab >>On predicting the ultimate capacity of a large-span soil-steel composite bridge
(English)Manuscript (preprint) (Other academic)
National Category
Civil Engineering
Identifiers
urn:nbn:se:kth:diva-239692 (URN)
Note

QC 20181206

Available from: 2018-11-30 Created: 2018-11-30 Last updated: 2018-12-06Bibliographically approved
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