Performance of insulated FRP-strengthened concrete flexural members under fire conditions

This paper presents the results of fire resistance tests on carbon fiber-reinforced polymer (CFRP) strengthened concrete flexural members, i.e., T-beams and slabs. The strengthened members were protected with fire insulation and tested under the combined effects of thermal and structural loading. The variables considered in the tests include the applied load level, extent of strengthening, and thickness of the fire insulation applied to the beams and slabs. Furthermore, a previously developed numerical model was validated against the data generated from the fire tests; subsequently, it was utilized to undertake a case study. Results from fire tests and numerical studies indicate that owing to the protection provided by the fire insulation, the insulated CFRP-strengthened beams and slabs can withstand four and three hours of standard fire exposure, respectively, under service load conditions. The insulation layer impedes the temperature rise in the member; therefore, the CFRP–concrete composite action remains active for a longer duration and the steel reinforcement temperature remains below 400°C, which in turn enhances the capacity of the beams and slabs.     

真空辅助成型技术(一)

真空辅助成型技术（VARI-Vacuum Assisted Resin Infusion）在低成本复合材料（FRP）成型工艺中起着很重要的作用，本文将介绍它的特点、制造、性能以及在国内外应用情况。     

高压玻璃钢管道的研制及在油田中的应用

本文介绍了高压玻璃钢管道的特性及在我国油田的应用情况。     

The new structure of fibre glass reinforced plastics bolt

The develop actuality and direction of FRP (fibre glass reinforced plastics) bolt in the world are analyzed. The new type structure of FRP bolt was designed. Trial data indicate that, all kinds of capability target of this FRP bolt all achieve and exceed the country stand-ard, substitute present metal bolt, wood bolt and bamboo bolt and other side bolt, it can gain magnitude technology and economy benefit. FRP bolt mechanization product line produce ef-ficiency is high, its throughput a day are 750 base, this can meet demand of hit-small mining company.     

扩展有限递归进程模型

主要讨论离散事件动态系统的建模问题。由ＫＩｎａｎ和ＰＶａｒａｉｙａ提出的有限递归进程（ＦＲＰ）是描述并发离散事件动态系统的有力工具，但在其ＦＲＰ中，没有定义对数据变量的操作和条件转移算子。本文扩展ＦＲＰ包括这两方面内容。最后举例说明扩展ＦＲＰ的描述能力。     

玻璃钢缓弯弯头模具的设计和制作

本文详细叙述了φ２００×９０°玻璃钢弯头模具的设计和制作方法。     

浅谈出口巴基斯坦铁路客车新型酚醛玻璃钢风道的研制开发

本文阐述了新型酚醛玻璃钢风道的成型工艺、开发过程，并与传统玻璃钢风道作了比较，论述了新型酚醛玻璃钢风道的优点，并对其应用前景和对铁路客车的设计思路的影响进行了探讨。     

纤维增强塑料筋的性能与发展

本文详细介绍了纤维增强塑料筋（Fiber Reinforced Plastic Rebar，简称FRP筋）在国内外的发展概况及其基本物理力学性能，指出了目前的纤维增强塑料筋及其混凝土构件力学性能研究中存在的问题。     

降低玻璃钢产品的收缩及变形的实验研究

本文介绍了如何通过控制原材料的选用、玻璃钢产品的成型工艺、加入填料、模具结构设计来最大限度的减少铁路客车用玻璃钢(FRP)产品的收缩及变形。     

复合材料列车车轮的设计

纤维增强复合材料(FRP)具有轻质、高强、阻尼特性好等优点,在汽车车轮中已有应用,用于列车车轮的思想始于上世纪80年代,国外陆续发表了一些使用复合材料设计列车车轮装置的专利。本文对复合材料车轮的设计思想和专利进行了回顾总结,并对复合材料列车车轮的开发进行了展望。