Seismic nonlinear vibration control algorithm for high-rise buildings

Abstract

It is necessary to study the seismic problem of buildings and structures for various safety reasons. Such as prevent and to reduce the damage caused by earthquakes to the greatest extent possible, research feasible analysis methods, and simulate the performance of the structure under earthquake action by computer, to keep its design performance in future earthquake action, and to ensure the safety of people's lives and property. The seismic design based on nonlinear vibration control is proposed. SAP2000 structure analysis software is used to establish the seismic structure model, foundation isolation model, and floor isolation model of a 15-story large chassis frame structure, the nonlinear time-history analysis of the three models under the action of multiple and rare earthquakes is carried out, and the period, displacement and acceleration of the isolated structure and the aseismatic structure are compared. The results show that, under the action of multiple earthquakes, the base shear of foundation isolation is 1208.06 kN, and the floor isolation is 926.43 kN, which are 0.37 and 0.3 of the base shears of the aseismatic structure, respectively. Under the action of rare earthquakes, the base-isolation shear is 4039.59 kN, and the story isolation shear is 3119.99 kN, which are, respectively, 0.4 and 0.31 of the base-isolation shears of the aseismatic structure. This method provides a reliable evaluation for nonlinear seismic response analysis of large complex high-rise buildings and provides an effective reference.

[Retracted] Semantic Construal Mechanism of the Linguistic Environment Parameter Theory in Business English Translation

“…The chi-squared test shows that the use of English-derived nominalization is significantly higher than that of Chinese-derived nominalization ( X 2 -1303.2, p =000), while the use of Chinese turn-type nominalization and phrase-type nominalization is significantly higher than that of similar English nominalization ( X 2 = 1361.9, X 2 = 72.7, p =.000). From the absolute value of the chi-squared test, the conversion type nominalization is the main source of the differences in the use of nominalization between the two languages, followed by the derived type, and the phrase type nominalization has the smallest difference [ 19 ].…”

[Retracted] Application of Dynamic Contrast‐Enhanced MRI in the Diagnosis of Rheumatoid Arthritis

“…It can only be inferred from indirect signs such as joint swelling and space change. Therefore, patients were selected according to the newly revised ACR/EULAR RA classification standard in 2009 [ 20 ]. This standard aims to classify patients with new-onset arthritis with a relatively short course of the disease, focusing on the early manifestations rather than the late characteristics of the disease, and redefine the characteristics of RA as persistent and/or aggressive synovitis.…”

Application of 3D Virtual Reality Sensor in Tourist Scenic Navigation System

“…Attribute data is also called statistical data or thematic data. The attribute database of this system mainly includes attribute data of tourism resources, tourism services, and tourism facilities [20,21]. Multimedia data is a kind of special thematic data; what methods should be adopted to organize and manage multimedia data effectively and how to combine it with attribute database are very important links.…”