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第八期
蒋红星,潘江波,叶以挺
摘 要:结合之江大桥水中承台新型锁口钢板桩围堰施工实例,对新型锁口钢板桩围堰施工的工艺原理、设计与布置、钢板桩插打、锁口封堵、围堰内吸砂及封底混凝土浇筑等方面进行了分析研究。结果表明,新型锁口钢板桩围堰可以将侧板的拼装及安装化整为零,使得拼装及下放简单、合拢便捷、封水效果好,是一种水中承台无底围堰施工的新方法。
Abstract: Combining with practical example of new locking steel-sheet pile cofferdam construction of the pile cap in water for Zhijiang bridge, the aspects of process principle, design and layout, driving of steel-sheet piles, locking plugging, absorbing sand in cofferdam and concrete pouring with bottom sealing of new locking steel-sheet pile cofferdam construction are analyzed and studied. The results show that new locking steel-sheet pile cofferdam can be assembled and installed for side bar with the whole into parts, so that it is easy to be assembled, conveniently closured and has good effects on waterseal, which is a kind of new method of cofferdam construction without bottom of the pile cap in water.
摘 要:针对RCC施工质量的影响众多因素,依据RCC施工的特点建立了施工质量评价指标体系,以信息熵确定指标权重,采用未确知测度理论构造综合评价模型。实证分析表明,该模型可操作性和适应性强。
Abstract: Based on many factors affecting the construction quality of RCC, a relative index evaluation system of the construction quality of RCC is formed according to the features of the RCC construction. By using the entropy theory to compute every index weight, a comprehensive evaluation model by unascertained measure theory is built. An example demonstrates that this model has the applicability and feasibility.
李巧玲,王银安
摘 要:以某工程筏板基础混凝土为例,分析了大体积混凝土一次浇灌的可行性,介绍了计算机测温技术在该工程中的应用,解决了测温自动化问题,为信息化施工提供了一个良好手段。
Abstract: For an example as a project of raft foundation concrete, the feasibility for once pouring of mass concrete is analyzed. The applications on computer thermometry technology in this project are introduced, and the problems on automatic thermometry are solved, which provides a good means for informational construction.
陈建兵,赵文娟,尤元宝,力为为
摘 要:波折开孔钢板是一种新型剪力连接件。为了研究设置有波折开孔板连接件的组合梁的界面特性,对具有双排波折开孔钢板连接件的钢-混凝土组合梁进行了有限元模拟,分析计算了混凝土板与钢梁上翼缘交界面处的相对滑移及其分布规律、应变差及其分布规律、波折开孔板连接件及贯穿钢筋的受力情况。对比试验结果表明,波折开孔钢板连接件的抗滑移性能、抗剪性能良好,混凝土板和钢梁具有良好的协同工作性能。
Abstract: The corrugated perforated plate is a kind of new shearing connectors. In order to investigate the interface character of composite beams with corrugated perforated plate, the finite element simulation for steel-concrete composite beams with double-row corrugated perforated plate connectors is carried out. In this simulation, the relative slippage and its distribution regularities, strain difference value and its distribution regularities on the interface for top flange of steel beam and concrete slab, and the force condition of corrugated perforated plate connectors and transfixion reinforced steel in the composite beam are analyzed and calculated. The contrast experimental results show that the anti-slippage and anti-shearing properties of corrugated perforated plate connectors are good, and the concrete slab and steel beam have good joint cooperation performance.
郑寒英,杨长辉
摘 要:生土墙体材料是以生土为主要原料制备的墙体材料,耐水性能较差、强度较低是制约其应用发展的主要技术问题。本文介绍了生土墙体材料的改性方法与机理,以及不同改性技术对生土墙体材料性能的影响,分析了目前生土墙体材料在研究和应用中存在的问题,提出了进一步研究的建议。
Abstract: The raw soil wall material is a kind of wall material mainly made up with raw soil. Its major?technical?problems are poor water?resistance and low strength. The modification means and mechanism of raw soil wall material are introduced, and the effects of different modification technology on the properties of the raw soil wall material are carried out. The problems on the research and application of the raw soil wall material are analyzed and the suggestions for further study are put forward.
曲延全
摘 要:为解决SRC异形柱正截面承载力的计算问题,根据有限元计算原理和SRC异形柱的试验研究成果,研发了SRC异形柱正截面承载力的电算程序,并对所研发的电算程序进行了试验验证。验证结果表明,电算结果与试验结果吻合较好,从而证明了电算程序的正确性,为SRC异形柱正截面承载力的计算和受力性能分析提供了工具。
Abstract: In order to calculate the normal section bearing capacity of SRC special-shaped columns, the computer programs are developed according to the finite element calculation principle and the experimental results of SRC special-shaped columns, and the experimental verification is made for the computer programs. The results show that the calculation results of the computer programs totally correspond with the experimental results, which proves the computer programs are correct, and the computer programs provide the tools for calculating the normal section bearing capacity and analyzing the mechanical properties of SRC special-shaped columns.