| The development of the container industry led to the increasing number of the vacant and used containers, so how to solve the problem of recycling and recycling of decommissioned containers has a certain effect on the concrete implementation of green environmental protection. The usual solution is to make use of them in construction of modular housing and to recycle them into steel Modular housing is a safe,environmentally friendly,economical and efficient form of construction, and gradually widely used and popularized,reflowing steel will pollute the environment There is a certain practical significance to study the strength and rigidity of container structure. This paper takes 20ft standard container as the research object, discusses the performance of the single container and the combined container structure and the single container with a hole under the horizontal concentrated load, and draws the relevant conclusion. The work includes the following:(1) Combining with the relevant results at home and abroad, this paper introduces the modular housing and development overview. The deformation of the container under the effect of horizontal concentration is mainly analyzed, including the overall deformation of the container and the axial deformation of the upper side beam When the axial deformation of the upper side beam is calculated,the influence of the side wall corrugated plate and the roof plate on the axial deformation of the upper side beam is analyzed respectively.(2) The anti - lateral stiffness formula and lateral displacement formula of the single - body container under the horizontal concentrated load are deduced by the principle of virtual work. Then the anti-lateral stiffness formula of single-layer multi-span, multi-layer single-span and multi-storey multi-span modular building structure is deduced according to the principle of superposition and displacement of deformation and coordination.(3) The basic theory of finite element and ABAQUS finite element software are introduced, and the finite element model of single - layer multi - span container structure is established and the numerical simulation is carried out to verify the anti -lateral stiffness formula of single - layer multi - span container structure. Then the finite element model of multi-layer single-span container structure with force acting on the top and i-th layer is established respectively. The formula of lateral stiffness of multi - layer single - span container structure is verified by theoretical calculation and numerical simulation. Finally,the anti-lateral stiffness formula of the multi-storey multi-span container house structure is simulated and verified.(4) Considering the need of the container in the practical application, the formula of the lateral stiffness of the single container is deduced when the bottom side beam is fixed. The finite element software is used to simulate the container with different opening rate, and the correctness of the formula is verified.(5) The influence of parameters on the stiffness of the container is analyzed by using the finite element numerical simulation method. The corrugated board size and cross-sectional shape, the situation of the hole and the envelope structure are taken as parameters. According to the conclusion, the reasonable suggestion is put forward for the design and construction of container composite housing structure. Finally, the theoretical research results are applied to an engineering example, which provides a construction plan for the project, which means that the research has certain reference value for similar projects. |
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