平硐正射影像展示图生成方法研究

针对现有摄影地质编录方法处理平硐工作量大、效率不高的缺点,在自主研制的高精度活动控制架基础上,研究了基于普通数码影像的平硐正射影像展示图的快速生成方法。精度分析及实验证明该方法现场作业效率高、内业处理方便快速,且精度达到施工地质编录要求。     

住宅小户型的设计探索

经济实惠适用的住宅为广大的普通百姓所喜欢,遂对这种适用的住宅的小房型设计做了探索。     

Distinguishing Between the Drawn and the Made

Here Bob Sheil , Director of Technology and Computing at the Bartlett School of Architecture and co-organiser of the 2011 Fabricate Conference at UCL, pulls back on the rush towards material computation. With the blurring of the projected image and the constructed artefact, there is the very real danger of reducing ‘architectural production to a systematic industrial exercise’. This fails to recognise the extent to which ideas and performance are transformed, developed and refined through the very process of making. Copyright © 2012 John Wiley & Sons, Ltd.     

Production of high strength concrete by use of industrial by-products

Blast furnace slag aggregates (BFSA) were used to produce high-strength concretes (HSC). These concretes were made with total cementitious material content of 460–610 kg/m³. Different water/cement ratios (0.30, 0.35, 0.40, 0.45 and 0.50) were used to carry out 7- and 28-day compressive strength and other properties. Silica fume and a superplasticizer were used to improve BFSA concretes. Slump was kept constant throughout this study. Ten percent silica fume was added as a replacement for ordinary portland cement (OPC) in order to obtain HSC. The silica fume was used as highly effective micro-filler and pozzolanic admixture. Superplasticizer at dosages of 2%, 1.5%, 1%, 0.5% and 0% by OPC weight for 0.30, 0.35, 0.40, 0.45 and 0.50 w/c ratios, respectively, were adopted. Results showed that compressive strength of BFSA concretes were approximately 60–80% higher than traditional (control) concretes for different w/c ratios. These concretes also had low absorption and high splitting tensile strength values. It is concluded that BFSA, in combination with other supplementary cementitious materials, can be utilized in making high strength concretes.     

关于南京钢铁厂高炉长寿途径的浅见

针对南京钢铁厂高炉寿命较短的现状及国内外长寿高炉的经验，提出南钢高炉在改善原燃料条件下，提高高炉操作水平，改进炉体各部的设计，提高施工质量，加强日常维修，以达到高炉长寿的建议。     

爆炸冲击载荷下钢板-混凝土组合结构的动态性能和破坏机理研究进展

钢板-混凝土组合结构(SPCCS)是一种具有自重轻、延性和抗力高、施工简便和经济效果显著等优点的新型混凝土组合结构.爆炸冲击载荷作用下SPCCS的力学性能与常规载荷作用下的结构性能相比,存在较大区别.论述了SPCCS的构成特性与分类,从理论、试验和数值模拟三个方面综述了爆炸冲击载荷作用下SPCCS的动力响应和损伤破坏的...     

Preliminary investigation of a vapor-open envelope tailored for subtropical climate

Concerning global warming and resource depletion, the impact of buildings in subtropical regions is becoming even greater due to a high growth rate of urbanized areas. From the viewpoint of building physics, the main problem concerning subtropical climate is the high level of humidity in combination with high temperature. In this study, a flexible building envelope consisting of wood and clay components was developed so that the materials and the assemblies can be easily tailored to comply with local climatic conditions. The movement and accumulation of moisture in the wall was of prime concern. This has been investigated by means of testing full scale walls in a climate chamber and the corresponding one dimensional transient heat and transfer simulation. In order to achieve a consistency between calculation and measurement, the individual materials were tested for their hygric and thermal properties. Based on these findings attempts were made to calculate the behavior of an optimized wall assembly under real climatic conditions of central Japan. As a result, it was shown that the hygrothermal behavior of the envelope is predictable by means of the models and the simulation program used, and that no risk of interstitial condensation and mold growth was predicted under the real climatic conditions of Kyoto.     

气敏元件反应温变的规律及其应用

给出了反应温变Δtrea随气体浓度C变化规律的复合次方形式：Δtrea =ACn/（1+BCm ）（ A,B,n,m>0,n>m）。给出了反应放热率Prea的公式。由此研究了闭室测试时,不同容器中容积为V的气体浓度C（ t）与测试时间的t的关系,并对有关问题进行了讨论。     

Modelling the response of reinforced concrete panels under blast loading

A finite element model is developed for the simulation of the structural response of steel-reinforced concrete panels to blast loading using LS-DYNA. The effect of element size on the dynamic material model of concrete is investigated and strain-rate effects on concrete in tension and compression are accounted for separately in the model. The model is validated by comparing the computed results with experimental data from the literature. In addition, a parametric study is carried out to investigate the effects of charge weight, standoff distance, panel thickness and reinforcement ratio on the blast resistance of reinforced concrete panels.     

控制爆破技术在龙溪河大桥拆除中的应用

针对重庆龙溪河大桥拆除所面临的复杂情况,阐述了该桥的拆除采用了浅孔、深孔爆破技术以及延时起爆技术,取得了较好的爆破效果,并将爆破危害控制在最小范围,达到了爆破拆除的原订目标。