Journal of Civil Engineering Researchers
Volume:1 Issue: 8, 2017

Dams are massive multifunctional projects where water supply for drinking, farming, industry, power generation, and flood control, and etc., which is one of their goals and is one of the most important projects in every country. In the forthcoming research, our goal is to evaluate the safety of Karoun 3 arched concrete dam under earthquake load. Accordingly, at first vulnerable points of the concrete dam are identified. This recognition is based on a review of previous studies and a series of nonlinear dynamical analyzes. Karoun 3 arc concrete dam is modeled in the software and under hydrodynamic pressure caused by the fluid, and the acceleration caused by the earthquake is applied. Due to these acceleration actions, tension and compression stresses are created in the dam, which may damage some dam points under these tensions and cause cracks in them. To solve numerical damage problems with high computational volume, using ABAQUS finite element software, theoretical investigation of damage phenomenon in Karoun 3 and other damaging structures has been investigated, taking into account the hydrodynamic forces.

In order to used and worn out tires and a better understanding of the commercial potential of used tires as rock molders in the concrete industry and the performance of this type of concrete in structural and non-structural applications, the study of the properties of new and complex concretehas to be necessary to contain these lesions. Testing fresh concrete such as slump, since reaching a diameter of 50 cm (T50) Hopper V, Box L, ring J and hardened concrete include compressive strength on samples cube 28 and 56 days to dimensions of 10 x 10cm and bending strength on samples prismatic dimensions of 75 x 15 x 15 cm by 28 days were done. In this research, used tires, as in the 5 designs mixed with 0, 5, 10, 15 and 20 percent replacement of coarse aggregate were used for the volume. Results showed that by increasing the amount of gum paste viscosity and increase the ability to pass, dispersion and filling, reduced. The compressive and flexural strength of the samples also decreased with increasing rubber content, the lowest drop, at 5%, and thehighest drop in the 20% rubber replacement compared to the control plan, and we are witnessing with dropped by 5% and 20% in the maximum and minimum in the replacement.

In this paper, performance level of steel moment resisting frame building has been assessed by pushover analysis.This journal aims to study the strength of the proposed building in the inelastic region. The proposed building is the regular shaped four-story steel structure which is situated in seismic zone II. Its height is 12.80 m above the ground level. The structure is composed of steel moment resisting frame and it is designed out by SAP-2000 Version 18 software. The result shows that, the strength of the structure which reaches safety in static analysis also maintain for the safety of life when its structure runs in the inelastic static analysis until it gets target displacement. There are 408 hinges in the building to present the capacity curve and performance level. And also, it can get the knowledge ofFEMA-356 usage in pushover analysis.

This paper aims to evaluate the zone II.selected steel framed building to conduct the non-linear static analysis (Pushover Analysis). The pushover analysis shows the pushover curves, capacity spectrum, plastic hinges and performance level of the existing building. The non-linear static analysis gives better understanding and more accurate seismic performance of buildingsas progression of damage or failure can be traced.The proposed building is the regular shaped three-storeyed steel structure.Its height is 9.8m above the ground level. The structure is composed of steel moment resisting frame and it is designed out by SAP-2000 Version 18 software. There are 204 hinges in the building to present the capacity curve and performance level. And also, it can get the knowledge of FEMA_356 usage in pushover analysis.