插销法冷裂缝试验中,应用“开裂”准则还是“断裂”准则,所得到的试验结果是有差异的。
The application of the criterion of initial cracking or that of fracture has different effects on the findings in the implant test for cold cracking.
最后通过反射裂缝试验研究分析了混合料各组分对反射裂缝产生的影响程度,另外还验证了反射裂缝评价方法的合理性。
Finally, influence extent of each ingredient for causing reflection crack is analyzed by test research. Furthermore, rationality of reflection crack evaluation method is proved in this paper.
根据试验数据提出了存在斜裂缝钢筋混凝土梁的抗剪强度折减系数的计算公式。
The formula of reduced shear strength coefficient of RC beams with inclined cracks is put forward to according to the test data.
用模拟试验研究各种脱粘和裂缝燃烧对发动机造成的故障效应,为故障诊断和失效分析提供依据。
The fault effects on restrict layer debonding and crack burning were studied by simulated test in order to provide analysis basis of fault diagnostics for solid rocket engine.
通过对杜拉纤维混凝土配合比试验和工程实践证明,在混凝土中掺加杜拉纤维后,可以减少混凝土的裂缝,而且有效提高抗冲能力。
Based on the ration experiment and practical engineering of DFRC concrete, this kind of application can reduce the rate of concrete cracking and increase the strength against momentum.
在试验资料的基础上,根据裂缝出现和开展的基本原理,找出影响裂缝宽度的主要因素。
On the basis of these data, the main factors affecting the crack openings are found according to the basic principles on the emergence and development of cracks.
试验结果表明,支座边的裂缝严重削弱了板的承载力,降低了楼板的刚度,导致楼板的挠度过大。
Experimental results indicate that the cracks weaken the strength of slabs considerably, lower their stiffness and induce the deflections of slabs beyond limit.
探讨了平板试验中以裂缝分维来评价抗裂能力。
Using fractal dimension of cracks to evaluate the anti-crack capacity in the slab test is analyzed.
说明有限元分析在某种程度上可以代替试验对钢筋混凝土梁裂缝宽度进行研究分析。
It shows that finite element analysis could replace experiments to study the crack width of reinforced concrete beams in a way.
采用脆性涂层法研究沥青路面的反射裂缝,并将试验结果与有限元计算结果进行了比较。
The method of brittle coat is used to study reflective crack of asphalt pavement, comparing the experimental results with that gotten by FEM.
小砌块建筑的裂缝型式是多样的,本文侧重于小砌块建筑墙体收缩性能的试验研究、理论分析以及相关的机理研究等。
Although the styles of cracks are multiple, the experimental study and analysis on shrinkage of Concrete Small Hollow Block Wall (CSHBW) are focused in this paper.
对某水库土坝水平铺盖裂缝处淤填黏土固结过程的数值计算结果通过室内模型试验得到了验证。
The numerical calculation result of the consolidation process of warping clay in the blanket crack of a small dam is verified by model test and engineering practice.
最后结合掺氧化镁混凝土的抗拉强度试验曲线,根据数值模拟结果,对长沙拱坝的裂缝成因进行了初步分析。
At last, the causes of cracks of Changsha arch dam are given based on the numerical simulation results together with the strength curves of experiment of MgO concrete.
在上述静载试验基础上,进行了疲劳荷载作用下混凝土裂缝稳定扩展过程研究。
Based on the static experiment mentioned above, the research of stable crack growth process of concrete under fatigue loads was carried out.
在分析试验结果的基础上,提出了确定裂缝闭合弯矩(或应力)的力学模型和计算公式。
Based on the test results, the calculation model and the method for predicting crack closing moments (or stresses) are presented.
通过对这些试验的综合分析,给出了出现裂缝的主要种类、成因及由此造成的破坏形式。
From the test results, categories and reasons of cracks and failure modes caused by them are presented by analysis.
通过25根钢筋钢纤维混凝土梁的试验,研究了影响钢纤维高强混凝土梁在正常使用极限状态下裂缝宽度的各种因素。
Based on an experimental study on 25 FRC beams, variables that affect the width of cracks in steel fiber reinforced high-strength concrete beams under normal service conditions are studied.
在试验和理论分析的墓础上,提出了无粘结部分预应力混凝土梁裂缝宽度的计算方法。
According to the test results and theoretical analyses, a method of calculating the crack width of unbonded partially prestressed concrete beams is presented.
本文在采用室内相似材料物理仿真模拟试验和非线性分形几何特征分析基础上,论述了榆次地裂缝的形成机理和基本发育特征与规律。
Based on indoor physical simulation and analyses of fractal geometrical characters, the mechanism of formation and the rule of basic development of the Yuci ground fissures are expatiated.
试验表明,利用钢纤维和自应力混凝土可以有效地降低管道外包混凝土的裂缝宽度。
The test results show that steel fiber reinforced self-stressing concrete could decrease the crack width of penstocks effectively.
为了评价应力吸收防水粘结层(SAWI)的抗反射裂缝能力,对其进行了性能试验。
In order to evaluate the reflection crack resistance of stress-absorbing waterproof interlayer (SAWI), some performance tests were carried out.
将导电涂膜应用于混凝土试块的抗压试验,结果发现导电涂膜在快速加、卸载条件下对混凝土微裂缝的出现及扩展相当敏感。
The conductive coat has been applied on concrete test blocks during the compression test, the data shows that the conductive coat is rather sensitive to formation and extension of tiny cracks.
试验表明,本文结果中水压裂缝扩展控制参数对改善顶煤预裂设计效果具有实际意义。
The experiments indicate that the control parameters of crack development induced by hydraulic fracturing have practical meaning for improving the effect of prefracturing design for hard top coal.
对采用不同梁端锚固方式的碳纤维布加固框架梁进行静载试验研究,在承载力、挠度及裂缝开展等方面进行了综合比较和分析。
The static load test was done on the frame beam strengthened by CFRP with frame joint anchored in different mode, and the bearing capacity, deflection and width of crack was surveyed.
基于四探针电阻率测量技术,依据试验测得的混凝土表观电阻率变化确定裂缝位置。
The location of the crack can be found by the change of the apparent resistivity, based on four-probe electrical resistivity measuring technique.
钢筋混凝土结构模型试验中,混凝土裂缝相似率是一个尚未解决的问题。
In model tests of reinforced concrete structures, similarity of concrete cracks is still a problem to be solved.
从试验中得到的位移、应变、裂缝开展等数据,可以看出木构架房屋满足抗震设防要求,具有很好的抗震性能。
Form displacement, strain, length of crack and so on, we can see timber frame meeting the challenge of anti-seismic, the results show that the frame has good anti-seismic performance.
在美国材料试验协会标准ASTMC1550圆板试验方法基础上,提出一种改进的基于裂缝宽度量测技术的纤维混凝土(FRC)材料静定圆板试验方法。
Based on standard test method ASTM C1550 for fibre reinforced concrete (FRC), a modified round panel test method for the material performance of FRC by measuring crack opening width is presented.
在美国材料试验协会标准ASTMC1550圆板试验方法基础上,提出一种改进的基于裂缝宽度量测技术的纤维混凝土(FRC)材料静定圆板试验方法。
Based on standard test method ASTM C1550 for fibre reinforced concrete (FRC), a modified round panel test method for the material performance of FRC by measuring crack opening width is presented.
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