The Static Behavior of a Ship Deck Panel Made of Composite Materials

A study on the static analysis of a naval panel made of composite sandwich materials is presented. By using FEM, the modeling of a naval floor with a length of 5 m and a width of 2.5 m is performed. Two distinct cases, have been performed: the first model consists of the plate and stiffeners made of steel and the second model concerns a panel made of composite material sandwich type steel / SANFoam103 / steel, and the stiffeners made of steel. A parametric study has been performed. The thickness of the steel faces have 6 mm, and for the core of SANFoam have been selected the thicknesses 5 mm, 10 mm, 20 mm, 40 mm.

Analysis of Key Technologies in the Design of Small and Medium Span Basket Type Steel Box Tied Arch Bridge

In order to ensure the construction quality and safety of small and medium span basket type steel box tied arch bridge, this paper takes a practical project as an example to analyze the key technologies in its design process. It is hoped that this analysis can provide corresponding reference for the design and construction of this kind of arch bridge.

Seismic Performance of Grille-Type Steel Plate Concrete Composite Walls with Application in a Super-High-Rise Building

The grille-type steel plate concrete composite wall (GSPCW) is an innovative shear wall system that mainly consists of steel faceplates, steel tie plates and infilled concrete. Compared to traditional steel plate concrete composite shear walls, the advantages of GSPCW walls include: (1) relatively high lateral and buckling resistance; and (2) simple structural measures for convenient construction and implementation. This paper presents the results of extensive numerical investigations regarding GSPCW systems, examining both GSPCW wall components and their application in a super-high-rise building as a case study. First, typical GSPCW wall models are established using DIANA software, and the numerical models are validated on the basis of comparison with results from previously reported experimental tests. The verified models are further used to perform parametric analyses with the aim of further understanding the effects of various design parameters on the seismic performance of GSPCW systems, including steel ratio, axial load ratio, height-to-width ratio, aspect ratio of the grille steel plate, and concrete compressive strength. Second, a super-high-rise building was selected for application to perform a case study of a GSPCW system. The seismic performance of the tall building in the case study was comparatively evaluated on the basis of both nonlinear time history analysis and modal pushover analysis (MPA), and the results from both of these methods validated the use of GSPCW is an efficient structural wall system appropriate for use in super-high-rise buildings. Finally, a simple economic assessment of the GSPCW building was performed, and the results were compared with those obtained for conventional reinforced concrete wall buildings.

Structural Performance of R-Type Steel Damper Used in Reinforced Concrete Members

This study proposes a steel damper with a simple shape and excellent energy dissipation capacity. The proposed damper has a rectangular shape (R-type) and has an energy dissipation part and a load transmission part. The energy dissipation part dissipates external energy through the yielding of the steel material; it comprises a vertical member and upper and lower horizontal members. This study performed two-phase experiments to verify the structural performance of the proposed damper. The Phase I test was performed to evaluate the load history characteristics and energy dissipation capacity of the damper and the Phase II test was performed to confirm the structural performance of reinforced concrete members with the proposed damper. The experimental results showed that the proposed R-type steel damper had high-energy dissipation performance despite having a simple shape.

Design and Analysis of Truss Type Steel Buliding by using Tekla Software

Steel offer the range of advantages to the structure Industry. Steel is also one of the most sustainable construction materials, building owners naturally value the flexibility of steel buildings in addition the value of benefits they provide.Steel trusses are widely used to carry the roof loads and to provide horizontal stability. There are numerous advantages to using steel trusses instead of traditional wood trusses, but the main reasons are simplicity and strength. Steel trusses offer a high strength, light weight roof system that can be installed quickly.In this project I use Tekla software. It has a very interactive user interface which allows the users to draw the frame and input the load values and dimensions. Tekla structures are powerful and flexible software for all structural projects. Then according to the specified criteria assigned it analyses the structure and designs the members with structural steel.Our final work was the proper analysis and design of truss type steel building.The Aim of present study is to define proper technique for creating Geometry, cross sections for column and beam etc., developing specification and supports conditions, types of Loads and load combinations. I analyzed and designed a truss type steel building initially for all possible load combinations (dead, live, wind, seismic loads). In this analysis process different types of codes are utilized. Dead load IS:875(Part-1), Live load IS: 875(Part-2), wind load IS 875-(Part-3), seismic load IS 1893. In this study a truss type steel structure is analyzed for seismic and wind load combination using tekla. Implemented manual designing and modelling by using of Tekla software

Effect of Modified Deformed Steel Fiber on Mechanical Properties of Artificial Granite

In order to explore the influence of the shape and surface treatment of steel fiber on the mechanical properties of artificial granite matrix, the drawing models of W-type, L-type, V-type, and I-type steel fiber are established, the pull-out force of different shapes of steel fiber is calculated theoretically, and a large number of experimental specimens are made for the pull-out test of steel fiber and material strength test. Both theory and experiment show that W-type steel fiber has the greatest influence in artificial granite. The steel fibers with different shapes were treated with KH-550 silane coupling agent. Then the steel fibers with different shapes before and after treatment were put into the artificial granite matrix for pull-out test and material strength test. The results showed that, compared with L-type, V-type, and I-type steel fibers before and after KH-550 silane coupling agent treatment, W-type steel fibers after KH-550 silane coupling agent treatment have the best strength enhancement effect in artificial granite matrix.