Applied Mechanics and Materials Vols. 543-547

Abstract: This paper studies the applicability of vibro-replacement stone pile in combination of a port project in Dalian as well as heavy dynamic sounding and standard penetration test, studies the reinforcement effect of pile distance and feeding type on vibro-replacement stone and analyzes reinforcement effects of the side pile and the earth among piles. The results show: smaller pile distance will bring better pile compactness; for the vibro-replacement stone pile constructed in soft earth with undrained strength less than 20kPa with the conventional method, it is not easy to form compact pile; the reinforcement effect works only within 0.6m on the top; vibro-replacement stone pile with bottom feeding mode can form compact piles, but the pile has the interlayer which is not compact enough partially; the strength of the earth among piles fails to improve obviously before and after the stone pile is formed.

Abstract: Finite element model of a pre-stressed bridge is established using finite element software ABAQUS according to the characteristics of the bridge. Three static loads are respectively applied to the model to investigate the stress distribution. Numerical calculation results of stress and displacement show that the design of the bridge meets the requirements of static loading.

Abstract: Further discussion of internal force calculation for the plane truss is made in this paper. The internal force of simple truss can be calculated with node method, according to the composition order of the truss. The internal force of joint truss can be calculated according to the composition rules of two or three rigid bodies. The internal force of complex truss requires the comprehensive judgment flexibly according to node method, cross section method and zero pole in special position and the symmetry of structure.

Abstract: Through the finite element simulation of semi-rigid connection steel frame with steel deep beam under horizontal cyclic loading,by changing the parameters such as the thickness of end platedepth-thickness ratio of deep beam, we can obtained the load-displacement curveslateral stiffness of the structure the yield capacity and the ultimate capacity.The results show that: semi-rigid joints deformed not obvious during the entire loading process because of the set of the deep beam;semi-rigid connection steel frame with steel deep beam effective control of the lateral structure, reducing the ductility of the structure of nodes required;this type of structure has good energy dissipation capacity under cyclic loading, ductility and stable hysteretic behavior.

Abstract: Highway tunnel mechanical and electrical engineering is a complex system which involves machinery, electronics, automation, communication and etc. In order to achieve high quality mechanical and electrical engineering standards, the construction and detection process should be planed and managed in details.

Abstract: Based on the background of Dalian Bay Cross-Sea Bridge project, some plans with settings of lead-rubber bearing among side pier, tower and stiffening girder have been analyzed under longitudinal seismic input using the favorable shearing property of laminated rubber, damping characteristics of lead. Analysis results show that the displacement and force of controlling node and section have been reduced. The effective isolated device is obvious.

Abstract: Based on the research airport vertical design principles and theories, this paper describes how we have researched and developed the vertical design CAD software system by the theory of Coons Surface as a mathematical model to describe the surface morphology of the airport, and the theory of Delaunay triangular together with digital terrain model system.

Abstract: Resin concrete generally has good mechanical properties, excellent thermal stability and great vibration resistance, the model of the ultra-precision machining center bed is established to study the thermal stability of the resin concrete using virtual reality and collaborative simulation technology based on Pro/E and ANSYS Workbench. The main factors that affect the machine tool bed thermal deformation were found through analyzing the deformation results and the materials and restrain conditions were optimized. The results proved that the optimized machine tool bed has good thermal stability and theoretical basis was provided to improve the thermal stability of the ultra-precision machining centers.

Abstract: Explosion containment structure (chamber) is used to protect personnel and experimental equipment during the destruction of explosion environmental for research blasting or disposal exploder. Reinforced concrete has advantiage of low cost and simple process in buliding ,so it was usually used of buliding the structure of resist explosion.This paper demonstrates reinforced concrete structures character of resist explosion under envirmonent of filling sand,the hoop strain of structure central cross section were measured loaded by different mass explosive charges,the safe criterion of reinforced concrete structure was obtained. Loaded by the explosion,the damage mechanics of reinforced concrete structure that diameter equal to height was analysed,and the method for avoiding the structure fail was suggest.

Abstract: Under the various load combination of buildings, the deformation of foundation soil. The size of the deformation directly affects the safety of the buildings. Factors that affect the deformation is mainly the geological structure, such as moisture content, density, soil after being compressed volume smaller feature is the compressibility of soil. Geotechnical engineering is a direction of the development of the civil engineering specialty, test provide necessary parameters for building foundation engineering, geotechnical laboratory for cohesive soil consolidation experiment teaching, make students grasp to determine the quantitative relation between the deformation and load, compression curve and rebound curve drawing, it provide necessary theoretical basis for geological prospecting work, provide necessary parameters for building foundation design, closely integrated theory and practice..