Advanced Materials Research Vol. 898

Abstract: In recent years, as the change of the building of aesthetic requirements, building skin is given more and more attention, and the material of the carrier material surface design exposition will play a huge role. In the second half of the 21^st century, the living environment and sustainable development has become the focus of attention of the world. Environmental protection concept is being accepted by more and more people. People are realizing the importance of ecological building material to the protection of the environment, the save of resources and the health of human beings. All kinds of ecological building materials receive much popularity among architectures around the world.

Abstract: Stiffing steel plate deep beam is introduced as a new lateral force resistant structure system and put forward mechanism of stiffing steel plate deep beam. Mechanical property of stiffing steel plate deep beam with different span-depth ratio under horizontal low cyclic load is analyzed through ANSYS which is a software of finite element analysis. The results indicates that with decreasing of span-depth ratio ultimate load raised substantially and strength of component gradually changes from depending on bending to shearing. The optimal value of span-depth ratio is 1.5.

Abstract: Because of the relatively small number of the subtropical region building energy research, resulting in the construction of energy-saving measures in the area of building energy method is mainly imitate other regions. The building energy efficiency should be appropriate. And the crucial of the building energy efficiency in subtropical region is heat insulation processing. This paper presents the idea of a subtropical region suitable for natural ventilation insulated exterior wall structure. A new kind of suitable natural ventilation and heat insulation building structure for exterior wall in hot summer and warm winter area is proposed in this paper, which thermal properties is calculated by Maple software. And this paper demonstrates that this kind of structure is the feasibility of the structure. The result of the comparison of thermal properties of different insulating structure by using the finite difference method for unsteady heat conduction calculation presents that the insulation performance of the buildings which have the natural ventilation and heat insulation structure is better than the ones without this ventilation. In the end of paper, the authors descript the hope that this kind of structure will be further research and analysis.

Abstract: The paper evaluate asphalt modified effects by PPA.The relationship of performance is compared between SBS modified asphalt and modified asphalt with different proportion SBS and different proportion PPA by tests such as the Penetration, Softening point, Ductility, viscosity and performance index of after aging RTFOT and after aging PAV. Results showed that 4%SBS and 1.5% PPA modified asphalt binder provided road performance as well as 5%SBS only binder. It is remarkable effect for improving road performance of PPA modified asphalt on high temperature, anti-aging, storage stability.

Abstract: Higher-order layerwise model is proposed to determine stress intensity factors using virtual crack closure technique for V-notched plates. Present method is based on p-convergent approach and adopts the concept of subparametric element. In assumed displacement field, strain-displacement relations and 3-D constitutive equations of a layer are obtained by combination of 2-D and 1-D higher-order shape functions. Thus, it allows independent implementation of p-refinement for in-plane and transversal displacements. In the proposed elements, the integrals of Legendre polynomials and Gauss-Lobatto technique are employed to interpolate displacement fields and to implement numerical quadrature, respectively.

Abstract: Plastic and steel sleeve contact force distribution, widely used in oil drilling mechanics, syringes, aerospace and so on. In this paper, plastic and steel ANSYS simulation compression sleeve contact deformation and contact force distribution state. Provide a valuable reference for the study of contact force fields Introduction.

Abstract: This paper aims to study the problem of residual life prediction and non-probabilistic reliability analysis for pipeline subjected to corrosion. Based on corrosion pipe bursting equation, the remaining life non-probabilistic reliability analysis model of corrosion pipeline with interval variables was established. The sequential quadratic programming method has been used for solving the non-probabilistic reliability index of corrosion pipes under different service years. Then the relationship curve of the service life and the remaining life reliability of the pipeline corrosion were given. Using the finite difference method, the parameters sensitivity analysis of corrosion piping reliability was performed.

Abstract: Structural steels require performance, such as structural performance, constructional one, and fire performance as an efficient constructional material. However, structural steels have a fundamental weakness in a fire and need to improve constructional performance of welding which resulted in the development submarine structural steels, such as SM 400, SM 490, and SM 520. Their yield strengths are the same as general structural steels, but the weldability was better. Therefore, the application of submarine structural steels increases in steel building market annually. However, the fire resistance performance isnt determined when these are used as main materials in H-section columns in the case of different boundary conditions and different column lengths. In this paper, to confirm and suggest a new guideline for fire protective materials, an advanced engineering design was used with mechanical properties at high temperature and a heat stress analysis. The findings showed that fire resistance of H-section columns with longer lengths and other boundary conditions are determined to satisfy the fire resistance performance if the fire protective materials derived from 3500mm in length and hinge to hinge boundary condition apply to longer column lengths and other boundary conditions.

Abstract: Microstructural properties have been studied in cementitious materials, which were subjected to cyclic sulfate exposure, through x-ray diffraction (XRD), scanning electron microscope (SEM), energy dispersive spectroscopy (EDS) and mercury intrusion porosimetry (MIP). Results indicate that portlandite in OPC concrete and OPC-FA concrete is mainly converted to gypsum. Portlandite in OPC-GBFS concrete is mainly converted to gypsum and ettringite. Concrete subjected to the cyclic sulfate attack has a lower porosity and the higher amount of macro-pores than that before exposure. Concretes incorporating FA or GBFS had lower porosity and higher amount of micro-pores than OPC concrete.

Abstract: The FRP composite material can replace the traditional under certain conditions, the wood structure of steel and reinforced materials, with high strength, light weight, resistance to corrosion and fatigue resistance, temperature stability and good special, because by civil engineeringcircles. This paper introduces the characteristics of FRP composites, the application of FRP composites in civil engineering are discussed, finally, the prospect of FRP materials are introduced.