带框复合墙板和屋面板的受力性能研究

发布时间：2018-05-28 12:12

本文选题：带窗洞复合墙板 + 风荷载　；参考：《山东大学》2017年硕士论文

【摘要】：随着建筑产业现代化的发展以及建筑节能的需求增长,具有施工便捷、保温效果好的复合墙板得到了越来越多的广泛应用。目前,国内外针对复合墙板的承载性能已有较多研究,但对于带窗洞口的复合墙板的性能研究较少。墙板上的窗洞口对复合墙板的刚度和承载力具有一定的削弱作用。本文以美国关岛装配式酒店工程应用为背景,研究带洞口复合墙板以及复合屋面板的承载能力。为解决带洞口复合墙板承载力的不足,本文提出了一种新型复合墙板,即带框复合墙板,通过在复合墙板内部设置暗柱、暗梁形成"框"来提高其抗弯和抗压承载力。通过对5块足尺具有窗洞口的新型带框复合墙板进行四点弯曲试验和偏心受压试验,考察其破坏模态和承载力性能。本文对复合屋面板设置暗梁、暗柱,并通过3块足尺带框复合屋面板进行弯曲试验,以考察其受弯性能。试验结果表明,复合墙板的抗弯承载力满足关岛风荷载要求,抗弯刚度较高;在四点弯曲荷载和偏心受压荷载作用下,复合墙板能实现完全组合作用,两侧混凝土面板变形协调,截面变形符合"平截面假定";复合墙板在四点弯曲荷载下发生延性破坏;最后利用中美规范对复合墙板的抗弯承载力进行了计算,计算值与试验值吻合良好。复合屋面板在横向均布荷载作用下,两侧混凝土变形协调,抗弯刚度大,抗弯承载力高,最终发生延性破坏。本文利用Abaqus有限元分析软件对带框复合墙板的受弯性能进行模拟,将模拟结果与试验结果进行对比。结果表明有限元方法可以较好地模拟复合墙板在弹性阶段挠度、混凝土应变等受弯性能,但不能准确模拟弹塑性阶段的挠度变化特点。
[Abstract]:With the development of modern construction industry and the increasing demand of building energy conservation, composite wall panels with convenient construction and good thermal insulation effect have been more and more widely used. At present, there have been many researches on the load-bearing performance of composite wall panels at home and abroad, but there is little research on the performance of composite wall panels with window openings. The window hole on the wall board can weaken the stiffness and bearing capacity of the composite wall board. In this paper, based on the engineering application of Guam Assembly Hotel, the bearing capacity of composite wall board with hole and composite roof panel is studied. In order to solve the problem of bearing capacity of composite wall board with openings, a new type of composite wall board, that is, composite wall board with frame, is put forward in this paper. By setting dark columns inside the composite wall board, the dark beam forms "frame" to improve its flexural and compressive bearing capacity. Through four point bending test and eccentric compression test, the failure mode and bearing capacity of five full-scale composite wall panels with window openings were investigated. In this paper, dark beams and columns are set up for composite roof panels, and three full-scale framed composite roofing panels are tested in order to investigate their flexural properties. The test results show that the flexural bearing capacity of the composite wallboard meets the requirements of Guam wind load, and the flexural stiffness is high, and the composite wallboard can be fully combined under the action of four-point bending load and eccentric compression load. The deformation of concrete panels on both sides is in harmony, and the section deformation conforms to the "plane section assumption"; the ductile failure of composite wall panels occurs under the four-point bending load; finally, the flexural bearing capacity of composite wall panels is calculated by using Chinese and American codes. The calculated values are in good agreement with the experimental values. Under the action of transverse uniform load, the concrete deformation of both sides of the composite roof is coordinated, the flexural stiffness is large, the flexural bearing capacity is high, and the ductile failure occurs finally. In this paper, Abaqus finite element analysis software is used to simulate the flexural behavior of composite wallboard with frame, and the simulation results are compared with the experimental results. The results show that the finite element method can well simulate the flexural behavior of composite wallboard in elastic stage, concrete strain and so on, but it can not accurately simulate the characteristics of deflection in elastic-plastic stage.
【学位授予单位】：山东大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TU31

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