Stiffness Analysis Of The Full House Scaffolding Based On The Dynamic Parameters

With the rapid development of the national economy and the growing scarcity of land resources, the high-rise and novel buildings and constructs are becoming more and more widespread,when we build these buildings,one of most commonly used is fastener-style tubular steel formwork-supports, But lot of fastener-style tubular steel formwork-supports collapse during the constructions in recent years, so,it is very necessary to analyze the stiffness of fastener-style tubular steel formwork-supportsModal parameters are the inherence characteristics of formwork-support.as the dynamic characteristics,The quantities of the frequencies relate to the distribution of the wholly stiffness, and the orders of the modes reflect the distribution of the partly ones.Compared with the strain and stress parameters, modal parameters are better related to the distribution characteristics of the wholly or partly stiffness of structure. What is more, because there are no relation with the force behaviors, it can be more directly and expediently to analyze the wholly and partly stiffness of formwork-support..For obove reasons, under the fund of " Research on the stabile problem of formwork-support." of the fifth construction limitid company of henan province and "engineering design based on feature parametric control "of the National Natural Science Foundation (approval number:50978232),the main work is done as below:(1)We use the single factor analysis to analyze the wholly and partly stiffness which are influenced by constitution factors of bracing in rhythm,the sweeping rod, the tightening torque, the scissors, and the pole spacing2) To find the law of the stiffness of formwork-support. influenced by structural parameters under the same height3)To find the law of the stiffness of formwork-support. influenced by structural parameters under the different height...