组合式筒仓钢骨架结构选型研究

筒仓结构在粮食存储方面发挥着重要作用。论文研究了一种受力性能合理高效而且能提供良好温控性能的新型筒仓,即超大型圆台状钢—索—竹组合式筒仓结构。对一个115英尺的圆形筒仓,仅在储料荷载下进行模拟分析,通过参数化计算,对筒仓钢骨架结构体系进行初步选型与分析,从而得出此算例下相对比较合适的布置方式以及梁柱截面尺寸。研究结果表明:在本案例中,环梁间距宜控制在1～2m之间;立柱的截面尺寸与环梁的截面尺寸密切相关,应根据不同的要求采取不同的布置方式。

装配整体式钢骨架混凝土结构体系研究与应用

为解决装配式建筑结构套筒灌浆连接存在的单价成本高、制作与安装难度高、连接质量难以检测等问题,基于等同现浇的概念,提出了一种新型装配式结构技术———装配整体式钢骨架混凝土结构(简称PCT装配式结构)。阐述了PCT装配式结构的技术原理、设计方法、生产、施工及验收要求;介绍了PCT装配式技术在住宅、公共与工业建筑、市政交通和MIC模块化技术等多领域的应用。结果表明:PCT装配式结构在技术上安全可靠,生产上常规快捷,应用上简明易行,具有广泛的应用前景。

关于钢结构时代性的思索

现代建筑运动的四大旗手之一勒·柯布西耶(L·Corbusier，1887～1965)在《走向新建筑》一书中指出，建筑形象必须是新的，必须具有时代性，必须同历史上的风格迥然不同；“因为我们自己的时代日复一日地决定着自己的样式”。

Application of laminated vierendeel truss in high-position transfer story structure

To meet the demands for large space and flexible compartmentation ofbuildings, laminated vierendeel trasses are adopted in high-position transfer story structures.First the bearing characteristics are analyzed, in which reasonable stiffness ratio of the upperchord, middle chord, and lower chord is derived. Then combined with an actual engineering model (1:8similar ratio), the static loading and pseudo-dynamic tests of two models for laminated vierendeeltrass used in transfer story structures are conducted, in which one model adopts reinforcedconcrete, and the other adopts prestressed concrete and shape steel concrete. Seismic behaviors areanalyzed, including inter-story displacement, base shear-displacement skeleton curves, andequivalent viscosity-damping curves. A program is programmed to carry out the elasto-plastic dynamicanalysis, and displacement time-history curves of the two models are derived. The test and analysisresults show that the laminated vierendeel trass with prestressed concrete and shape steel concretehas excellent seismic behaviors. It can solve the disadvantages of laminated vierendeel trussesused in transfer story structures. Finally, some design suggestions are put forward, which can bereferenced by similar engineering.

封闭式煤炭堆场研究

某港煤炭码头距离城市中心较近,作业过程中虽采取所有可能的降尘措施,但依然对周边居民和环境造成一定的影响。文章中从防风抑尘网,到钢网壳大棚、钢骨架索膜结构封闭大棚和钢骨架张拉膜结构封闭大棚,进行多方案分析论证,为最终选取合理的封闭堆场方案提供了建设依据。