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SIGMA Case Studies available

The VESAM Group released online new five case studies describing monitoring installations adopting the SIGMA system. Industrial unit Services building Bridge over Uhamba river Bridge over Kusso river Várzeas bridge Read the case studies here.

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Structural Health Monitoring of Bridges and Buildings in Africa: Challenges and Difficulties

ABSTRACT: The steel and mixed construction sector is growing worldwide due to the obvious advantages of steel structures in comparison to reinforced concrete structures. To ensure this trend, it is necessary to clarify some of the drawbacks that are normally wrongly linked to steel constructions, namely those related with corrosion, fire resistance and fatigue. One … Continue reading Structural Health Monitoring of Bridges and Buildings in Africa: Challenges and Difficulties

Structural and production management solutions adopted in the new bridge over Keve River

ABSTRACT: The construction of mixed steel-concrete bridges in African countries it is a huge challenge presenting several difficulties, such as the generalized absence of qualified workman ship, the high cost of local raw materials, the need to import and the reduced execution times. For this reason, VESAM developed new solutions that can help reducing costs … Continue reading Structural and production management solutions adopted in the new bridge over Keve River

Life cycle of metallic structures. An integrated view of a management system.

ABSTRACT: Steel and mixed construction presents several advantages that makes it very competitive in comparison to traditional constructions in concrete. Structural members with a reduced cross sectional area and high slenderness, combining simultaneously a high strength capacity and aesthetics, superior quality control, fast fabrication and assembly with immediate availability for use, 100% recyclable raw materials, … Continue reading Life cycle of metallic structures. An integrated view of a management system.

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VESAM Steel Research Center

ABSTRACT: It is currently recognized that research, development and innovation (R&D+i) activities are fundamental to differentiate organizations and for the creation of new products and services, increasing their competitiveness and promoting their grow and affirmation in the global market. In the construction industry, namely the steel and mixed construction, the R&D+i activities are clearly a … Continue reading VESAM Steel Research Center

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COMPOSITE BRIDGES IN SADC. KEVE RIVER BRIDGE.

ABSTRACT: To build composite bridges in countries belonging to the SADC – Southern Africa Development Community – is totally different from building in Europe since there are specific difficulties that constrain the final solution, such as: 1) difficulty in finding skilled labor for welding works; 2) the high cost of the solution when it is … Continue reading COMPOSITE BRIDGES IN SADC. KEVE RIVER BRIDGE.

A novel approach in the life cycle assessment of engineering structures

ABSTRACT: Structural Health Monitoring (SHM) is fundamental for the assessment of the behavior of existing and new structures under service conditions. It is most suitable to identify the initiation of deterioration and to validate design hypothesis such as load distribution paths, bond between materials, composite action between precast members and cast-in-place parts, among others. The … Continue reading A novel approach in the life cycle assessment of engineering structures

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Management of the Production of Metal Structures: Computer Application – “MERP”

ABSTRACT: Most software for the management of the production of metallic structures has its field of action limited to work in the factory, not allowing for the monitoring of subcontractors – in the other words, execution done “out of doors”. The vast expertise necessary to manufacture a steel structure and the increase of distance between … Continue reading Management of the Production of Metal Structures: Computer Application – “MERP”

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Development of a Structural Health Monitoring System

ABSTRACT: Structural Health Monitoring (SHM) is fundamental to identify the structural behavior, in particular of special structures, allowing the validation of design hypothesis, the development of more economical solutions and the prediction of deterioration. In general, the existing structural health monitoring systems present a high cost when installed in current structures. In opposition to this … Continue reading Development of a Structural Health Monitoring System

A New Type of Deck Slab for Bridges using Honeycomb Sandwich Panels

ABSTRACT: Composite materials, in particular sandwich panels are increasingly used in construction due to their excellent performance characteristics and high strength/weight ratio. This article introduces the concept of a new type of structural slab that can be used for bridge decks. The system consists of a sandwich panel with two metal plates and a core … Continue reading A New Type of Deck Slab for Bridges using Honeycomb Sandwich Panels