Study On Construction Technology And Joint Experiment Of The Single And Double Layer Grids Structure

With the development of the economics, more and more large span space are needed. Therefore, a large number of large span structures, such as stadiums and gymnasiums, exhibition centers, train station, airport and large workshop and so on, were co nstructed. Except the traditional spatial truss and latticed shell, some new large span structures w ere ad opted i n s ome e ngineerings, s uch as b eam s tring structures, truss s tring structures, sus pen-dome structures, cabl e-supported b arrel vault structures, cable domes, vierendeel latticed shell and so on.In o rder to overcome t he weak out-of-plane stability o f s ingle layer latticed shell and bad appearance of double-layer latticed shell, a new structure, single and double layer latticed shell structure, was adopted in the airport of EERDUOSI. In the second chapter, the static bahvior temperature effect and stability of the presented structure were analyzed based on the finite element analysis. Based on the analysis results, the pr esented structure has a good static behavior a nd s tability, a nd it is sensitive to the temperature load, especially to the temperature load considering the solar radiation.A systematical research on the dynamic response under fluctuating wind and multiple seismic exciations were carried out using the transient dynamic theory. The displacement average wind vibration coefficient were obtained and the value is about 2.0. And the t ravlling wave influence co efficient is 0.43~3.76, 0.33~2.04 and 0.40~1.75 under V=300 m/s, 800 m/s and 1200 m/s respectively.The Y-shaped supported structure was adopted in the airport of EERDUOSI. And the cast-steel joint including stiffening rib was used in between the latticed shell and the Y-shaped supported structures. The stress distribution of the cast-steel joint was analyzed using nonlinear finite element theory. Based on the analysis results, it is concluded that the caset-steel joint including stiffening rib has a good mechanical behavior.The false t ightening phenomenon is a main pr oblem o f t he bolt-ball joint in engineering application. And this problem make the structure under danger. In order to overcome this problem,a new bolt-ball joint is presented in this paper. In addition, the design method for this new bolt-ball joint is also presented. Considering the characteristic of the rotary sliding construction in the airport of EERDUOSI, some design method and principle were presented in this paper.In order to understand the failure mechanism of the presented bolt-ball joint, the material testing, compressive test of sleeve and the tensile test of high strength bolt were carried out. And based on the test results, the failure modes of the presented bolt-ball joint were obtained, which can provide a important reference for its design method.