NUMERICAL ANALYSIS OF INFILTRATION INTO PERVIOUS CONCRETE-BASE SYSTEMS

2015 ◽  
Author(s):  
Bertrand Teodosio
Keyword(s):  
Numerical Analysis ◽  
Pervious Concrete ◽  
Concrete Base

Experimental and analytical study on sliding vibration of a solid body

2019 ◽  
Vol 25 (18) ◽  
pp. 2480-2493 ◽  
Author(s):  
Hakan Yerlikaya ◽  
Satsuya Soda
Keyword(s):  
Numerical Analysis ◽  
Ground Motion ◽  
Computer Model ◽  
Structural Model ◽  
Base Isolation ◽  
Earthquake Ground Motion ◽  
Friction Behavior ◽  
Maximum Acceleration ◽  
Isolation System ◽  
Concrete Base

It is accepted that the use of base isolation systems within a structure offers a decreased amount of maximum acceleration value throughout the structure and provides a higher level of comfort and safety to the residents even during extremely strong ground motions. We want to propose a new low-cost structural system with the aforementioned benefits of the base isolation. A structural model was developed using an ultra-high-molecular-weight polyethylene film as a friction surface for the whole concrete base of a residential house, creating a friction-based base-isolation system. To understand the friction behavior between the two materials, a computer model was developed in SAP2000 software, and experiments were conducted to confirm the computer model’s proposed behavior. The created computer model is capable of accounting for the adjustments of the dynamic and static friction parameters depending on the velocity of the block. It is possible to conduct the numerical analysis with three-directional input to the system as well as nonlinear solving capabilities. The results of the numerical analysis are compared with the experiment results on a one-directional wave, along with the 1995 Kobe Earthquake ground motion record that had an input in three directions. The results confirm the reproducibility and predictable behavior of the proposed base-isolation method. The maximum acceleration of the concrete base will be no greater than nearly 30% of gravity acceleration regardless of the maximum acceleration of the ground motion.

Numerical Analysis of Asphalt Pavement of Lean Concrete Base

2013 ◽  
Vol 361-363 ◽  
pp. 1699-1702
Author(s):  
Li Jun Suo ◽  
Bing Gang Wang
Keyword(s):  
Finite Element ◽  
Thermal Stress ◽  
Numerical Analysis ◽  
Finite Element Model ◽  
Asphalt Pavement ◽  
Element Model ◽  
The Other ◽  
Shearing Stress ◽  
Traffic Loading ◽  
Concrete Base

Both thermal stress and load stress, which are caused by temperature change and traffic loading, are important parameters used in the analysis of the new asphalt pavement design. In order to study the stress of asphalt pavement of lean concrete base, first of all, threedimension finite element model of the asphalt pavement of lean concrete base is established. The main objectives of the paper are investigated. One is calculation for stress of asphalt surface, and the other is calculation for stress of lean concrete base. The results show that load stress of lean concrete base increases quickly with the increase of load. Thermal stress of lean concrete base increases with the increase of thickness of base. Asphalt surface is in the state of compression. Maximum shearing stress decreases with the increase of thickness of asphalt surface.

Numerical Analysis of Porous Concrete Base in Asphalt Pavement Based on Traffic Load

2013 ◽  
Vol 405-408 ◽  
pp. 1757-1760
Author(s):  
Li Jun Suo
Keyword(s):  
Finite Element ◽  
Numerical Analysis ◽  
Asphalt Pavement ◽  
Element Model ◽  
Mechanical Analysis ◽  
The Other ◽  
Traffic Load ◽  
Porous Concrete ◽  
Concrete Base ◽  
Increase With Increase

Traffic load is important parameter used in the analysis of the new pavement design. However, few studies have done extensive and intensive research on the load stress for asphalt pavement of porous concrete base. Because of that, it is necessary to study the stress of porous concrete base in the asphalt pavement based on traffic load. In the paper, first of all, threedimension finite element model of the asphalt pavement is created for the aim of doing mechanical analysis for the asphalt pavement. And then, the two main objectives of this study are investigated. One is calculation for load stress of porous concrete base, and the other is analysis for load stress of porous concrete base. The results show that load stress of porous concrete base decreases, decrease and increase with increase of bases thickness, surfaces thickness and ratio of bases modulus to foundations modulus respectively.

Sign in / Sign up

Export Citation Format

Share Document