Study on Seismic Performance of Unit Thermal Power Main Plant Steel-Concrete Structure for 1000 MW in High Intensive Seismic Region

Zhiqin Liu,Guoliang Bai

doi:10.19026/rjaset.7.215

Abstract

Build 1000 MW unit thermal power main plant by using steel structure system in high intensive seismic region at home and abroad. As steel structure system little lateral stiffness, need more project cost and maintenance cost. In order to find new structure system which is applicable to seismic performance of large capacity unit Thermal Power Main Plant in high intensive region, reasonable equipment layout, project cost and the maintenance cost lower than the steel structure, taking a 1000 MW unit thermal power main plant bridge as the research object, steel reinforced concrete frame-dispersed shear wall structure system is tested. (1/7 scale) model of three substructure of primary structure with pseudo-dynamic test and pseudo-static test is tested in seven working condition. The results show that the structure system can meet the needs of design in zone with the seismic fortification intensity 8, have better deformation property, the many defensive line of horizontal force resistant and can be used in the main power house of large capacity unit Thermal Power Plant.

Highlights

Foundation engineering facilities that maintain the function of modern urban and regional economy are defined as lifeline engineering
Thermal Power Plant is the core of the thermal power project, an important part of the large and complex lifeline system and the safety of its structure directly affect the production and construction of the country and the people's living order (Franklin, 1981; Shahrooz et al, 2001)
The steel structure in the form of steel support-steel frame is commonly used at home and abroad by setting much of support in order to ensure the anti-side shift stiffness of steel structure for main plant of large capacity units (1000 MW) in high intensive region

Summary

INTRODUCTION

Foundation engineering facilities that maintain the function of modern urban and regional economy are defined as lifeline engineering. Traditional reinforced concrete structure of main plant are not suitable for main plant of large capacity units in high intensive region, part of axial compression ratio at the ground floor columns is too large, the structure layer displacement and vertex displacement under earthquake is too large (Zhiqin et al, 2010; Xiaojuan et al, 2010; Guoliang, 2008). The steel structure in the form of steel support-steel frame is commonly used at home and abroad by setting much of support in order to ensure the anti-side shift stiffness of steel structure for main plant of large capacity units (1000 MW) in high intensive region (seismic intensity of 8, 9o). Technol., 7(1): 23-29, 2014 power main plant in high intensive region with steel reinforced concrete frame-dispersed shear wall structure on the base of 1000 MW unit power plant and popularization and application of this structure system and a basal research for the establishment of associated design procedures

TEST RESEARCH

Displacement of the Shear of basement

Structure of stiffness The relative

ANALYSIS RESULT OF TEST

CONCLUSION