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Study on Seismic Responses of the Interaction of Reinforced Block Masonry Shear Wall and High-Rise Frame Structures

Author: SunQingJie
Tutor: PengWei
School: Southwest Jiaotong University
Course: Structural Engineering
Keywords: Reinforced masonry High - level framework Elastic analysis pushover analysis Seismic performance assessment
CLC: TU352.1
Type: Master's thesis
Year: 2009
Downloads: 62
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Abstract

Block masonry of this new type of civil engineering materials in foreign countries has been widely used, China is vigorously promoting. In the earthquake disaster, reinforced masonry shear wall structure has withstood the test of a number of large earthquakes, and the frame structure filled with wall has appeared severely damaged, resulting in a significant loss of life and property, especially in the means of escape stairwell filled walls, the damage more serious consequences, to improve their destruction is imminent. In this paper, replaced with reinforced masonry filled wall in the stairwell of a practical engineering frame structure, a reinforced masonry wall structure 1, and then on the basis of the structure l in the weak axis Gabe reinforced masonry shear wall constitutes a reinforced masonry wall structure, together with the original framework using finite element analysis software MIDAS / Gen 7.1.2 to expand more than the case of elastic analysis of the earthquake and the severe earthquake of elastic-plastic analysis of the three calculation model, discussed on the basis of the comparative analysis, masonry wall structure lead to improvements in the wall of the means of escape destruction of the conditions of a study of the seismic performance of reinforced masonry and high-level framework for joint action. More than the case of the earthquake, the seismic response is basically in the elastic stage. This paper first introduces the structure elastic seismic response analysis method, comparative summary of the static theory, theory and elastic response spectrum time history analysis of three analytical methods. Modal superposition response spectrum method to calculate the elastic seismic response of the three models, from the natural period of vibration, structural displacement vertex displacement and maximum story drift angle, column axial compression ratio were analyzed, and the same specification limit compared to investigate the seismic performance of reinforced masonry framework interaction in multi-earthquake. Rare earthquake, the seismic response of the structure into the elastic-plastic stage. Static analysis (pushover analysis) a brief introduction to clarify the basis of the general theory of elastic-plastic analysis method to study the pushover analysis capacity spectrum method and target displacement method, horizontal loading mode, The pushover analysis steps, and finally by three computational model pushover analysis, and pre-set performance goals for the assessment of the structure, according to the performance point of structural deformation, displacement angle meets the specification bomb test structure layer plastic interlayer displacement angle limit, the structural member meets the requirements of the severe earthquake performance level. Through comparative analysis, investigate the rational design of reinforced masonry wall structure can meet the performance objectives of the indicators to study the seismic performance of reinforced masonry and upper frame structure under rare earthquake interaction and summarizes the reinforced masonry wall structure in the the rare earthquake destruction process and elastic-plastic layer between the displacement angle limit.

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