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Recycled aggregate instead of natural macadam and sand is used to make recycled aggregate concrete and one of indexes-the capacity of resisting the freezing and thawing repellence of recycled aggregate concrete's durability with city, garbage melting slag is discussed.

为了研究城市垃圾熔渣细骨料以及废弃混凝土粗骨料再生利用的可能性，着眼于城市垃圾熔渣再生混凝土的耐久性能，试验以100%再生粗骨料以及垃圾熔渣细骨料替代天然碎石和砂子制备再生混凝土，探讨了城市垃圾熔渣再生混凝土的耐久性能之一抵抗冻融循环的能力。

The experiment shows the specimen's freezing and thawing repellence of 100% recycled aggregate concrete with city garbage melting slag, compared with specimen of the normal concrete whose coarse and fine aggregate's replacement ratio is 0%,the durability number indexes of using water and cement ratio 0.45 and 0.65 respectively decreased 5.3% and 7.9%,but all can satisfy the lowest index for evaluating freezing and thawing repellence.

试验结果表明，城市垃圾熔渣再生混凝土试件的冻融循环抵抗性与粗、细骨料置换率为0%的普通混凝土试件相比，水灰比0.45、0.65时的耐久性指数分别降低5.3%和7.9%，但都能满足评价冻融循环抵抗性的最低指标。

This manner can form continuous arrangement effect of hoop bar with less space, and be fit for concrete restricted by stirrup. It also can reduce the concrete crack arised by retortion in the region of frame column, and improve the ductility capability under the earthquake. The construction quality of frame column is improved simultaneously.

该布置方式形成连续且间距较小的箍筋布置效果，有利于发挥箍筋对混凝土的约束作用，减小各种因素可能引起框架柱扭转而在柱非加密区产生的裂缝，改善柱中部区域在地震作用下的延性性能，同时可以提高框架柱的施工质量。

Based on the penetrate -resistance capability of steel-fiber concrete,this paper presents the revisional formula in calculating penetrating depth by introducing toughness index of steel-fiber concrete and considering the influence of shape character and content of steel-fiber.

对钢纤维混凝土抗侵彻性能进行了研究，将钢纤维含量特征参数和钢纤维混凝土韧度的概念引入到侵彻深度计算公式中，在试验的基础上给出了弹体对钢纤维混凝土侵彻深度的别列赞修正计算式。

College of Civil Engineering , Beijing University of Technology, Beijing 100022, China A numerical analysis method for elastic-plastic seismic response of concrete block masonry is presented based on open system for earthquake engineering simulation system. The method simulates concrete block masonry by using equivalent frame model with rigid offsets; the space beam-column elements are simulated by force based nonlinear beam-column elements.

基于地震工程模拟开放系统OpenSees，提出了混凝土砌块砌体结构三维弹塑性地震反应数值分析方法，用带刚域的等效框架模型模拟混凝土砌块砌体结构，空间杆单元采用以力为基础的非线性梁、柱单元。

5M of the super- large cantilever pre-stressed concrete cov- er beam in Wuhan Middle Ring Line West Ring Section Road Rebuilding and Extension Project as the analyzing example,the article simply sets forth the analysis and comparison of the plane and space stress characteristics of the pre-stressed concrete cover beam.

该文以武汉中环线西环段道路改扩建工程中标准宽25.5m的超大悬臂预应力混凝土盖梁为分析对象，简要阐述了预应力混凝土盖梁的平面与空间受力特性的分析比较。

For the slope protection,domestic and foreign have various methods,such as:clean surface, and shotcrete stone surface and the use of concrete,asphalt,riprap,etc.,but these have a fatal weakness,the use of clean face,and shotcrete stone surface and the use of concrete,asphalt,riprap protection methods such as the slope,often due to excessive destruction of the human impact of the original natural and ecological environment.so that the entire road is almost formed a gray line,and While these protective measures outside the slope formed a protective layer of solid layer,but if there is a protective layer of water into the lower water flow and form,these protective measures will also be destroyed.

对于边坡的防护，国内、国外均有多种方法，比如：抹面、喷浆、石砌护面以及利用混凝土、沥青、抛石等等，但这些都有着致命的弱点，利用抹面、喷浆、石砌护面以及利用混凝土、沥青、抛石等方法进行防护的边坡，往往由于过多的人为影响破坏了原来的自然生态环境，使整条公路几乎形成一条灰色的路线，同时，这些防护措施虽然在边坡外面形成了一层坚固的防护层，但只要有水渗入防护层下部并形成水流时，这些防护措施也将被冲毁。

The paper also indicates that influence of vertical crack on reinforcement rustiness is smaller than lengthwise crack, concrete basicity, concrete carbonate and so on.

钢筋锈蚀是导致钢筋混凝土结构耐久性等级下降的主要原因之一，本文根据工程调查，分析了混凝土状况对钢筋锈蚀程度的影响，认为垂直裂缝对钢筋锈蚀的影响程度远小于纵向裂缝、混凝土碱度、碳化等其它因素。

The studies on durability of bridge structures including concrete,rustiness of reinforcement steel,loss of pre-stress caused by shrinkage and creep of concrete,fatigue damnification and system durability of bridge structures.

随着高强度预应力钢材的广泛应用，使桥梁结构变得越来越薄，这要求更需注意由于结构的耐久性不足而导致的结构失效。

In the last part, in the situation that the reinforcement is beyond the complete protection of the concrete, series tests on the rustproof effect of the antiseptic, rust inhibitor and permeation resistance agent has proved that it has obvious rustproof function to the concrete.

最后，在假设钢筋完全失去混凝土保护的情况下，对防腐阻锈抗渗剂的阻锈效果进行了系列的验证，证明防腐阻锈抗渗剂对钢筋阻锈有明显效果。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新