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<table border="0" cellpadding="3" cellspacing="1" width="100%" class="forumline"> <tr> <th class="thCornerL" width="22%">Autor</th> <th class="thCornerR">Wiadomość</th> </tr> <tr> <td width="22%" align="left" valign="top" class="row1"><span class="name"><a name=""></a><b>defgf10aj</b></span></td> <td class="row1" valign="top"><table width="100%" border="0" cellspacing="0" cellpadding="0"> <tr> <td width="100%"><img src="http://picsrv.fora.pl/Elveron/images/icon_minipost.gif" width="12" height="9" alt="Post" title="Post" border="0" /><span class="postdetails">Wysłany: Czw 17:26, 04 Lis 2010<span class="gen"> </span> Temat postu: Layered steel fiber reinforced concrete bending s</span></td> </tr> <tr> <td colspan="2"><hr /></td> </tr> <tr> <td colspan="2"><span class="postbody">Layered steel fiber reinforced concrete test of bending strength <br /> <br /> <br />No. 6 strong trend rate of increase is obvious. Therefore, to improve layered steel fiber reinforced concrete flexural strength, the increase in aspect ratio is an effective method. However, the increase in aspect ratio will also have some problems on the construction process, such as spreading fibers easily scattered, take the junction is serious, therefore, increase the aspect ratio should be measured in various aspects, in order to achieve optimal effect. 4 Conclusion layered steel fiber reinforced concrete as a new composite surface material, has many excellent characteristics, compared to full-doped fiber reinforced concrete, at the same time meet the requirements of a certain intensity can reduce the amount of steel fibers, which form a composite material broad application prospects. The main conclusions of the trial are as follows: (1) layered steel fiber reinforced concrete flexural strength increases with the volume ratio increases and then decreases; (2) Based on the analysis in the test proposed by the optimal volume of steel fiber l% a rate of 2%, 1.5%: (3) aspect ratio of layered steel fiber reinforced concrete flexural strength increase is very significant, but should consider a combination of factors. Reasonable choice. Port References: [1] Luzhe An, Chen Bo, et al. Upper and lower steel fiber concrete flexural strength and the enhancement mechanism of [M]. Wuhan University of Technology, 2001, (1). [2] CECS13: 89. Steel fiber reinforced concrete test method [S1. \\Refers to the engineering quality inspection agencies entrusted, according to relevant laws, regulations and mandatory standards for construction, structural safety of the project involving the sampling and into the construction site of building materials, components and parts of the witness sampling test. \; are qualified to apply the corresponding test items should be certified through the measurement; a quality inspection, construction, supervision or design experience, and received training in detection technology related professional and technical personnel were less than lO; outlying counties (districts) of expertise officer not less than 6; to carry out testing work in compliance with the necessary apparatus, equipment and workplace; of which, the use of measuring instruments subject to compulsory certification, after passing the test to pass measures before use; have a sound technical management and quality assurance system. \Needs to be extended qualification certificate expires, the testing organization shall 3O qualification certificate expires before the application for extension of working procedures. (Tin core) revised seismic safety evaluation of Zhejiang Administration of fourth class to be over before the earthquake building construction, including road and rail lines off the construction of large bridges fourth type of construction must be carried out before the special seismic evaluation and seismic safety evaluation based on the results to determine the requirements for seismic resistance. Otherwise, the administrative department of the earthquake will be ordered to make corrections, and the project owners or construction project design unit, a fine of more than l million to 5 million fine. This is the General Office of Zhejiang Provincial Government 1 March 2005, published l1 \This fourth type of construction are: the special road and railway bridge, long and long tunnel, road and rail overpass, city elevated highway; cities main railway station and railway terminal projects; motorway viaduct, more than second-class airport, tons or more port projects (docks, berths, etc.); more than 300kV substation and control building, etc.;, in the city's main communications hub and an important building project; large, urban water supply, gas supply, heating of the main project; nuclear power plants, nuclear reactors, nuclear heating devices; medium-sized reservoir, the dam height of over 60m and so on; important oil storage, gas storage projects, flammable and toxic material storage facilities, large-scale production workshop and are susceptible to earthquake engineering and Other major secondary disasters occurred projects; high (height greater than or equal to 8Ore) building works; provinces, cities divided into districts affiliated hospitals, the CDC, first aid center where the blood bank; provinces, cities divided into districts owned radio and television broadcast control center facilities, transmission towers and other projects; large concentration of theaters and gymnasiums and other personnel, and other public construction projects must be specialized according to seismic safety evaluation of the major construction projects. (Tin core) <br /> More articles related to topics： <br /> <br /> <br /> <a href="http://www.krainy.fora.pl/wyspa-rukia,19/last-library-wulongquan-mine-management-_756,4559.html#32947" target="_blank" class="postlink">Last library Wulongquan mine management _756</a> <br /> <br /> <a href="http://www.krainy.fora.pl/osiem-szczytow,31/largest-exporter-of-electric-hydraulic-pressure-p,4557.html#32945" target="_blank" class="postlink">Largest exporter of electric hydraulic pressure p</a> <br /> <br /> <a href="http://www.krainy.fora.pl/wyspa-kei-sumi,21/large-open-pit-conveyor-belt-electrical-equipment,4555.html#32943" target="_blank" class="postlink">Large open pit conveyor belt electrical equipment</a></span></td> </tr> </table></td> </tr> <tr> <td colspan="2" height="1" class="spaceRow"><img src="http://picsrv.fora.pl/Elveron/images/spacer.gif" alt="" width="1" height="1" /></td> </tr> </table>
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