浅谈建筑物墙体裂缝的质量控制

简要分析了墙体裂缝的形状、位置分布特征及裂缝产生的原因,提出控制墙体裂缝产生的几种方法。例如增加墙体刚度,分散与降低应力集中作用等。实践证明,这些方法对控制产生墙体裂缝是有效的。     

浅议墙身裂缝控制与措施

根据目前住宅楼经常遇到的裂缝问题,文章从温度、沉降、设计及施工等方面探讨了墙体裂缝产生的原因,并且根据产生裂缝的原因从每个方面提出了墙体裂缝的控制措施。     

怎样预防墙体裂缝

作者在建设监理中发现墙体产生裂缝,对墙体产生裂缝的原因进行深入分析,并针对墙体产生裂缝的原因提出具体详实的预防、整改措施,希望这些建议能给今后的工程建设起一定的参考作用。     

墙体裂缝的原因及防治

根据加气混凝土墙体裂缝出现的部位及形式,在分析裂缝产生原因的基础上,提出对加气混凝土墙体裂缝的防治措施和建议。     

砖混结构设计中如何防止墙体裂缝

分析了砖混结构墙体裂缝形成的原因及类型,主要从设计的角度提出了防止墙体裂缝产生的措施。     

浅析某超高层剪力墙结构墙体裂缝的形成机理

文章通过对比试验,研究了墙体配筋、养护方式、墙体开洞、设置竖向后浇带及混凝土强度对墙体裂缝的影响。研究结果表明,混凝土墙体裂缝产生的主要原因是混凝土收缩及强约束,高强混凝土更容易引起墙体开裂。     

砖混结构墙体裂缝的成因与防治

房屋墙体裂缝的产生给住户造成了很大经济损失及心理压力。因此分析砖混结构墙体产生裂缝的原因并做好预防措施,是工程技术人员的一项重要任务。     

混凝土地下室墙体裂缝的产生与解决途径

本文介绍了地下室混凝土墙体裂缝的主要特征,分析了地下室混凝土墙体裂缝产生的原因,给出地下室墙体裂缝的处理方法,并进一步讨论了地下室混凝土墙体裂缝的预防措施。对在地下室混凝土墙体的设计和施工中减少墙体裂缝的产生有一定的借鉴意义。     

混凝土地下室墙体裂缝的产生与解决途径

本文介绍了地下室混凝土墙体裂缝的主要特征，分析了地下室混凝土墙体裂缝产生的原因，给出地下室墙体裂缝的处理方法，并进一步讨论了地下室混凝土墙体裂缝的预防措施。对在地下室混凝土墙体的设计和施工中减少墙体裂缝的产生有一定的借鉴意义。     

建筑物裂缝形成原因及控制措施探讨

建筑墙体裂缝是建筑工程中经常发生的一种质量通病。墙体裂缝的出现,轻则影响房屋的美观、适用性和耐久性,严重的将影响到整个房屋的结构承载力及使用寿命。本文总结分析了建筑物墙体裂缝产生的原因,针对性地提出了建筑墙体裂缝控制的施工措施。     

Markedness and its Interpretation in Language Use

Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.     

低渗透非均质砂岩油藏启动压力梯度研究

理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。     

On Tragic Consciousness In The Works By Ernest Hemingway

As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.     

Achieving Unusual States of Matter Under High Pressure

正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-     

Exchange-Correlation and Electronic Excitation Energies from Pairing Matrix Fluctuations

We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-     

Density Functional Theory for the Response of Periodic Systems to Electric Fields Based on the Vector Potential Approach

正The electronic and nuclear(structural/vibrational)response of 1D-3D nanoscale systems to electric fields gives rise to a host of optical,mechanical,spectral,etc.properties that are of high theoretical and applied interest.Due to the computational difficulty of treating such large systems it is convenient to model them as infinite and periodic(at least,in first approximation).The fundamental theoretical/computational problem in doing so is that     

On the Thermodynamic Limit for Responses to Static Electromagnetic Fields

For molecular systems,the quantum-mechanical treatment of their responses to static electromagnetic fields usually employs a scalar-potential treatment of the electric field and a vector-potential treatment of the magnetic field.Although the potential for each field separately is associated with the choice of an(unphysical)origin,the precise choice of the origin for the electrostatic field has little consequences for the results.This is different for the     

An affordable accurate evaluation of the binding conformations predicted by molecular docking studies in bio-system

Franck-Condon factors bridge the gap between theoretical modeling and experimental observations for molecular electronic spectroscopy and electron transfer.Under the displaced harmonic oscillator approximation,multidimensional Franck-Condon factors are decomposed into a product of many one-dimensional(1D)Franck-Condon(FC)factors,and each 1D-FC factor is associated with one Huang-Rhys factor that determines the leading contribution of     

Call for Papers

<正>"The Journal of Shanghai Normal University:Mathematics"is published by Shanghai Normal University as regular issues of The Journal of Shanghai Normal University each year from 2014 in English.The editors-in-chief of the issues are professors Yuhao Cong and Maoan Han.The Journal of Shanghai Normal University was started in 1958 with     

Journal of Donghua University ( English Edition) Contents of Volume 31

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