摘 要：结合武汉融侨锦江项目工程，对磨细钢渣粉在大体积混凝土中的应用进行了研究，并通过试验对原材料和配合比参数进行了优化。试验表明，磨细钢渣粉掺量为取代水泥量的20%时，混凝土7d抗压强度平均值为24.8MPa，28d抗压强度平均值为48.2MPa，满足C40级混凝土设计规范的要求。 Abstract: Combining with Wuhan Rong Qiao Jin Jiang Project, the application of ground steel slag powder in mass concrete is researched, and the raw materials and mix proportion parameters are optimized through the tests. The test results show that when the dosage of ground steel slag powder is about 20% substituting the cement, the average 7d compressive strength of concrete is 24.8MPa, and the average 28d compressive strength is 48.2MPa, which can meet the requirements of C40 design specifications for concret

摘 要：介绍了一种新型预应力工艺技术——缓粘结预应力技术，探讨了缓粘结型环氧树脂钢绞线涂层的抗腐蚀性能和力学性能。工程应用结果表明：缓粘结型预应力工艺技术对提高结构安全性能和耐久性能都是有利的。 Abstract: A new kind of prestressed process technology—retard-bonded prestressed technique is introduced, and the corrosion resistance and mechanical properties of retard-bonded epoxy resin strand coating are discussed. Engineering application results indicate that retard-bonded prestressed technique is useful for improving the safety and durability of the structur

摘 要：对基础滑移隔震研究与应用现状进行了综述，介绍了滑移隔震技术的基本原理和隔震装置；根据国内外的研究和应用情况，从理论分析、试验研究和工程应用等方面进行了分析和总结；最后评述了存在的问题，并对今后的发展进行了展望。 Abstract: A systematic introduction to the research achievements in the field of sliding isolation of building vibration is carried out. The basic theories and isolation sets of sliding isolation technology are expounded. According to the research and application in home and abroad, the theoretical analysis, test research and project application are analyzed and summarized. Finally, some problems are reviewed, and the developments in the future are prospected.

摘 要：以相变膨胀珍珠岩储能颗粒为保温砂浆轻骨料，水泥及粉煤灰为胶结料，并掺加一定量的可再分散乳胶粉及纤维来配制相变储能保温砂浆；研究了相变膨胀珍珠岩掺量对相变储能保温砂浆抗压强度、相变储能板材导热系数和保温砂浆吸水率的影响；用SEM及DSC对相变储能保温砂浆内部形貌及热性能进行了探讨。 Abstract：Through the phase change expanded perlite used as lightweight aggregate for thermal insulation mortar, cement and fly ash as binder, the phase change energy storage insulation mortar is prepared which is mixed with a certain amount of polymer powders and fibers. The effects of the dosage of phase change energy storage insulation mortar on the compressive strength of mortar, thermal conductivity of phase change energy storage plates and water absorption of insulation mortar are studied. The surface morphology and thermal properties of the phase change energy storage insulation mortar are discussed by SEM and DSC.

摘 要：研究了局部区段内锈蚀钢筋暴露、混凝土保护层剥落的钢筋混凝土柱的承载力问题。考虑局部区段内不同钢筋锈蚀率、柱两侧钢筋均暴露的情形，通过理论分析，提出了一种计算局部区段内钢筋锈蚀情况下的偏心受压柱的承载力简化计算模型，并通过实验验证了模型的可行性。 Abstract: The load capacity of reinforced concrete (RC) column with partial length corrosion is theoretically studied, where the exposure of the longitudinal bar, delaminating of concrete cover and loss of the bond within this partial length are considered. Simplify analytical model about the load capacity of RC column with partial length corrosion under eccentricity load is proposed through the theoretical analysis, and the feasibility of the proposed model is verified by the experiment results

摘 要：在满足客运专线活性粉末混凝土（RPC）材料人行道挡板、盖板技术要求前提下,并在保证构件生产工艺的情况下,试验研究了水胶比、硅灰、石英粉以及钢纤维掺量对RPC混凝土工作性能及抗压强度的影响，配制出了抗压强度为154MPa，抗折强度为21.5MPa，且各项指标均能满足《客运专线活性粉末混凝土（RPC）材料人行道挡板、盖板暂行技术条件》所规定的RPC混凝土。 Abstract: Under the technical demands for sidewalk baffle and cover plates of passenger dedicated line reactive powder concrete(RPC) material, to ensure the component producing process, the effects of water binder ratio, silica fume, quartz powder and steel fiber dosage on workability and compressive strength of RPC is researched by experiment. The RPC with 154MPa compressive strength, 21.5MPa flexural strength and each index satisfied the < Temporary technological terms for sidewalk baffle and cover plates of passenger dedicated line reactive powder concrete(RPC) material> is prepared.