46700m~2楼房一次爆破拆除

东北汽配城为框架结构,总建筑面积46700m2,周边环境非常复杂。该建筑物共有260根柱子,断面尺寸不尽相同。按建筑伸缩缝将楼房分为5个部分,分别采用了原地坍塌、定向倾倒、折叠倾倒一次控制爆破技术,并将土石方爆破的斜线起爆技术用于拆除爆破。由于爆破设计、施工及安全措施得当,爆破获得圆满成功。     

Sonderlösungen bei der brandschutztechnischen Bewertung von Konstruktionsdetails

Special‐purpose solutions in the fire‐protective evaluation of construction details Very often components or construction details in existing buildings but also in new buildings cannot be evaluated with regard to its fire resistance ability considering established technical building regulations. There are no regulations for the evaluation of such components or construction details as these specific construction details have not been evaluated by a certified test authority. However, these components and construction details very often can be classified in fire resistance classes e. g. by evaluating fire tests, with regard to DIN 4102‐4, on the basis of similar proof of usability or only by pragmatic considerations. Since introducing the technical approval of the fire protection Eurocodes more often engineering methods of fire protection are used based on these Eurocodes by using temperature assessment in order to secure the evaluation results. Within this essay we show methods and ways of fire‐protective evaluation for components and construction details. The approach of proof including dimensions of possible upgrade measurements if necessary are being illustrated by examples of use out of practical experience. At the same time different materials such as steel, concrete and wood will be treated with different fire‐proof products. The essay is to explain ways of evaluation of components and construction details involving fire‐proof requirements including upgrade measurements also especially for existing buildings.     

Die Sturzflut von Braunsbach – Ingenieuranalyse der Gebäudeschäden

The flash flood of Braunsbach – engineering analysis of the building damage At the end of May to the beginning of June, a series of extreme rainfall events occurred in the southern part of Germany, which triggered some severe flash floods with significant building damage in the affected municipalities. The devastating flash flood of May 29, 2016 in Braunsbach in the district Schwäbisch Hall in Baden‐Württemberg caused heavy structural damage to some of the approximately 130 affected buildings. The paper gives an overview of the building damages documented immediately after the event. The damages cases were classified and assessed using the evaluation system of the EDAC‐flood damage model developed at the Earthquake Damage Analysis Center (EDAC) of the Bauhaus‐Universität Weimar. The analysis illustrates the particularities of the damage patterns due to flash floods compared to conventional river floods.     

Ausbau des Stichkanals nach Salzgitter von SKS‐km 3,550 bis 14,918

Expansion of the branch channel to Salzgitter from SKS‐km 3,550 to 14,918 The branch channel to Salzgitter will be extended to the waterway category Vb in the next years. This will enable inland waterway vessels with a width of 11,45 m and a loaded draft of 2,80 m to run it without limitations. The reaches Wedtlenstedt and Üfingen will be extended in most areas to a trapezoidal cross section with a width at water level of 36,90 m and a water depth of 4,00 m. The exit basins of the locks will be extended on one side. Overall about 1 000 000 m² of soil will be moved. About 300 000 m² of clay sealing and 460 000 m² of rip‐rap will be installed. Three culverts have to be replaced by new constructions to adapt to the new cross section of the channel. In addition two bridges will be modified to allow for a clearance of 5,25 m. At present the plan approval procedure is carried out. It is expected to achieve the plan approval order in 2017. The construction is planned to start in 2018. Completion is scheduled for 2024.     

Evaluation of surface/interface quality,microstructure and mechanical properties of hybrid additive-subtractive aluminium parts

A disadvantage of selective laser melting (SLM) processes for the manufacture of large parts is their slow build time per unit volume. A hybrid route is to generate core simple shapes traditionally, for example by machining, followed by adding final features by SLM. Here the mechanical integrity of such hybrid parts is studied, choosing the building of AlSi10Mg by SLM on a machined AA6082 base, in the shape of a tensile test piece, as a simple example. These materials are chosen for their relevance to lightweight parts. As-built parts fail at the SLM/machined interface but standard heat treatments transfer failures to the machined material. Optimised SLM processing conditions and microstructures of the SLM and interfacial regions are reported.     

深圳地王商业大厦超高层钢结构安装施工技术与管理

通过对深圳地王商业大厦的建设，阐述了在越高层勾结构安装施工技术与管理要点．     

CO2 emission consequences of energy measures in buildings

This paper studies the way in which CO₂ emission levels are affected by different measures to reduce energy consumption in a building. A case study is presented which deals with a residential building in Navestad, a suburb of the Swedish city Norrköping. The building is supplied with district heating primarily delivered from a combined heat and power (CHP) plant. Three types of energy measures are studied: extra insulation, new types of window and the introduction of a heat pump. The first perspective is the city of Norrköping, with the system boundary encompassing the residential building and the CHP plants. A second worst case scenario is then presented: a Nordic perspective in which electricity produced in coal condensing power plants is assumed to cover the marginal electricity production. With the former perspective, the measures extra insulation and new windows reduce the CO₂ emissions, and with the latter both measures increase the CO₂ emissions. The measures extra insulation and new windows are ranked, with respect to cost for the first perspective, using a cost reduction curve for CO₂ emissions. In the paper, costs from the ExternE research project are also used.     

厦门市高层建筑抗震设防管理与实践

本文首先简要论述了厦门市的地震环境,然后全面总结了厦门市高层建筑抗震设防管理的实践经验,介绍了高层建筑设防审查的分类管理办法。最后,本文还就如何抓好高层建筑抗震专项审查进行了有益的探索。本文的工作可供建设行政管理部门在抗震设防管理中借鉴。     

静态爆破施工技术

静态爆破是近年来发展起来的一种新型爆破施工技术 ,由于它可在无振动、无飞石 ,无噪音、无污染的条件下破碎或切割岩石或混凝土构筑物 ,极适合于城市建设中各类钢筋混凝土基础、建筑物的拆迁及桥梁、码头、道路、涵洞的改扩建。因而具有广阔的发展前景 ,本文就静态爆破的施工原理、优特点、应用及具体施工过程进行合面阐述。     

多元·共生——浅议青岛“里院建筑”的重新建构

"里院建筑"是青岛本土形成的特色居住建筑形式,是青岛城市历史记忆的载体,然而当今城市化进程正严重威胁着这种特有空间的存在。保护好"里院建筑",传承和复兴里院文化,成为一个迫切需要解决的问题。运用动态和区域联动的方法,从物质、经济、文化等层面对其重新建构,以达到对里院的保护和可持续发展,并使其在多元的建筑和文化中重获新生并由此复兴,进而成为城市现代化发展的动力机制。