高层建筑厚板结构转换层的施工技术

高层建筑转换层结构所承受的竖向荷载及其跨度都很大,导致其截面尺寸大且高,高层建筑转换层结构施工中混凝土施工复杂、施工强度大,存在一定的难度。基于此,本文就以高层结构转换层施工经验,以其中某厚板结构转换层工程施工为依据,重点阐述了厚板结构转换层施工中的技术要点,及对厚板转换层结构混凝土施工技术做了阐述,以期为同类工程建设提供一点借鉴。     

某高层住宅钢筋混凝土厚板转换层结构的施工技术

本文结合某高层住宅工程实例,就其中1.8m厚板转换层施工,简要地叙述了钢筋混凝土厚板转换层结构的施工技术。     

高层建筑厚板转换层施工中的若干问题

介绍了杭州仙林桥农贸市场综合楼厚板转换层施工中的控制措施,提出了可供高层建筑厚板转换层施工参考的建议.     

万科都市花园厚板转换层结构设计

本文通过厚板转换层的设计,对实心厚板转换层上下剪刚比控制、结构选型及构造提出一些建议;对厚板转换层的设计和施工提出建议与体会。     

高层综合楼厚板结构转换层施工技术分析探讨

本文结合转换层施工实例,并根据叠合施工原理,从模板支撑、设钢筋网、改善混凝土品质、施工缝处理、有效解决厚板施工荷载传递和抗裂问题等方面详细阐述了高层综合楼厚板结构转换层施工技术要点,以达到控制结构转换层整体施工质量的效果的目的,可供同行参考借鉴。     

某工程钢筋混凝土厚板转换层结构的施工技术应用

本文作者结合工程实例。就以某工程1．8m厚板转换层施工,简要的叙述了钢筋混凝土厚板转换层结构的施工技术。     

有关建筑结构转换层设计与施工技术探讨

本文根据工程事例对厚板结构转换层的结构设计进行阐述、并对厚板结构转换层的施工技术进行了相关探讨。     

超高层建筑厚板结构转换层施工技术

结合超高层建筑厚板结构转换层的工程实例,分析了结构特点和施工的重点问题,阐述了承重支架、钢筋绑扎、大体积混凝土浇捣等采取的技术措施,顺利完成了厚板转换层施工。     

钢筋混凝土厚板转换层结构的施工技术应用

本文作者结合工程实例，就以某工程1．8m厚板转换层施工，简要的叙述了钢筋混凝土厚板转换层结构的施工技术。     

高层建筑结构转换层施工技术

高层建筑转换层结构的跨度和承受的竖向荷载均很大,致使它的截面尺寸高而大,混凝土的连续浇捣施工强度大,施工过程比较复杂,有一定的难度。基于以往高层建筑转换层的施工实践,本文以某工程1.8m厚板转换层施工为例,阐述钢筋混凝土厚板转换层结构的施工技术。     

板式转换层及其施工技术研究

介绍了转换层结构的特点,对厚板转换层结构的优缺点和注意事项进行了认真总结分析,并结合多年的工作经验对厚板转换层结构施工技术进行了探讨,可供工程技术人员在实际转换层结构工程中参考。     

乾鸿苑大厦预应力厚板转换层结构设计

简要介绍上海乾苑大厦预应力厚板转换层结构设计,其内容包括结构选型、三维空间结构整体分析、预应力厚板设计、厚板转换层上下剪切刚度比控制、构造措施等。这些设计内容可供类似的结构参考。     

厚钢板现场焊接技术在西安铁路北客站的应用

结合具体工程实例,介绍了厚钢板现场焊接施工工艺流程及施工过程,解决了厚钢板现场焊接的难题,保证了施工质量,取得了一定的经济效益,为今后钢结构工程积累了经验。     

厚板转换层施工中若干问题的探讨

针对转换层在钢筋混凝土结构高层建筑中的重要性,对厚板转换层结构施工过程中关于模板工程、混凝土工程、钢筋工程以及预应力工程的若干重要问题进行了探讨,从而使厚板转换层结构得到更广泛的应用。     

考虑弹性支撑的厚板转换层实用计算方法

研究了考虑弹性支撑的厚板转换层工程实用计算方法,并与刚性支撑计算结果进行了比较。结果表明,考虑弹性支撑的厚板转移层中的计算内力变化较缓,峰值较小。由此编制的计算程序已应用于工程。     

某住宅楼转换层施工技术

基于某住宅楼转换层梁截面尺寸大、配筋量大、梁柱节点配筋复杂、结构超长等施工难点,通过技术、经济和工期比较,选择转换梁整体施工法.通过计算确定转换层支撑体系,严格制订钢筋材料检验及安装方法,梁板混凝土分区浇筑,严格控制浇筑及养护措施.采用不设梁侧模、增设钢板网及分层浇筑等方法避免混凝土流入后浇带.浇筑过程中支架稳定,墙、柱、梁模板完好.     

Tall building with steel plate shear walls subject to load reversal

This paper presents a state‐of‐the‐art review of research on thin unstiffened steel plate shear walls including recent research advances, in addition to a case study building that used them as the primary lateral‐force‐resisting system. Thin unstiffened steel plate shear walls are becoming an attractive alternative to traditional lateral‐force‐resistance systems because they exhibit desirable structural properties. A properly designed steel plate shear wall will have considerable energy dissipation capacity, ductility, initial stiffness and ultimate strength. Furthermore, the said walls are efficient in terms of cost and space due to their light weight, ease of construction and small footprint. The case study building is a 55‐story high‐rise system that took advantage of these properties. Details are presented regarding the design process and tools that were used to ensure a safe and efficient structure. Copyright © 2011 John Wiley & Sons, Ltd.     

The plate thermometer - a simple instrument for reaching harmonized fire resistance tests

The measured fire resistance of a structure tested in different furnaces in accordance with ISO 834 may differ considerably. Similarly, the fire resistance of that same structure may be 25% longer when tested in accordance with ISO than it is when tested in accordance with ASTM. These anomalies complicate the evaluation of test results and must be eliminated to reach harmonized international testing.The heat transfer to a test specimen in a test furnace at high temperature depends primarily on radiant flux rather than convection. Temperature measurement devices used to control furnaces should therefore respond to this type of heating in a way similar to that in which test specimens respond. They should have a large area so that the radiant heat transfer dominates, and they must, at the same time, have a quick thermal response.The plate thermometer is designed to have these properties. It consists of a thin steel plate, 100 mm by 100 mm and 0.7 mm thick, with an insulating fiber board on one side. A thermocouple is welded to the center of the plate. It should be placed in front of the specimen, with the insulated side facing the specimen. The exposed side will then receive the same radiant heat flux as the specimen.This paper describes the plate thermometer and gives a basic theoretical analysis of the heat transfer conditions in furnaces. Measurements with the plate thermometer in several furnaces are also reported.     

Fractal two-level finite element analysis of cracked Reissner''s plate

A cracked thick plate subjected to edge moment and transverse loading was customarily analysed either by a fine finite element mesh or by singular elements. In this paper an alternative method is recommended in which conventional finite elements with infinitesimal mesh are used and the number of unknowns is reduced by interpolating the nodal displacements by means of the global interpolating function around the singular region. The global interpolating function is derived by using eigenfunction technique based on Reissner's transverse shear plate theory. The crack parameters such as stress intensity factor and moment intensity factor can be evaluated directly from the coefficients of the global interpolating function. New elements need not to be generated and integration is avoided completely. Accurate results with error less than 0.5% are achieved with little computational efforts. Examples on edge cracked plate and central cracked plate subjected to both edge moment and transverse loading are considered.