这也是施工期结构安全事故大大高于使用期安全事故的重要原因之一。
This is one of the important reasons which cause accidents during construction more than that in service period.
针对施工期结构的时变性特征，提出了一种分析施工结构的简化分析法——模块化方法，大大提高了分析效率。
Because of the time_changing performance of structure during construction, a kind of simplify analysis method -modular method is summarized.
对于水工隧洞衬砌混凝土，在施工期由于水泥水化热作用，温度应力影响显著，是产生混凝土结构裂缝的重要原因之一。
As for hydraulic tunnel lining concrete, thermal stress is one of important factors that cause concrete cracks, due to the heat of hydration of cement in the construction period.
因此研究施工期荷载对结构的影响具有一定的意义。
So, it has a certain significance to study the influence of construction period loads on semi-rigid asphalt pavement structure.
因此必须重视施工期桥梁结构的可靠性分析与研究。
So analysis and study of structure reliability during construction period must be emphasized.
提出多层钢筋砼结构在施工期间，施工荷载在各相关楼层间的分配及承载力安全性复核的方法。
This paper proposed the methods for distribution and safety check of bearing force of multi-layer reinforced concrete structure in construction and construction load in related floors.
施工期间的预应力混凝土结构是时变体系。
The prestressed reinforced concrete structure during construction is a time-dependent structural system.
将留后浇带预应力混凝土梁模拟为弹性支座梁，研究了留后浇带预应力混凝土结构施工期间的力学性能。
The structures are simulated as a beam with elastic bearing, then a model is proposed for the analysis of prestressed concrete structures with a strip of post pouring concrete during construction.
施工期间对结构的安全性和可靠性有着严格的要求。
Structure safety and reliability are firmly required during construction period.
施工期荷载较重可能在施工过程中对结构产生影响，进而影响结构发生早期破坏。
Heavy loads during construction period may have an impact on the structure, thereby affecting early damage of the structure.
再次，运用增量法的原理，用ANSYS分析地下室结构施工期间在温度、收缩变形作用下的应力场。
Thirdly, we apply the theory of increment method to analyze the stress field of basement in construction period under the action of temperature and shrinkage strain by finite program ANSYS.
本文对淤泥海床上的沉入式大圆筒结构施工期(即大圆筒已沉放到位，但筒内尚未填筑填料)在波浪作用下的稳定性进行了实验研究。
The stability of large scale cylinder sunken set on muddy seabed under the action of wave during the process of construction is studied experimentally.
本文依据结构可靠度理论，对高墩大跨预应力混凝土刚构桥的施工期桥墩可靠度进行研究。
On the basis of structure reliability principles, this essay studies the reliability of prestressed-concrete rigid-frame bridge with high-pier and large-span during construction period.
最后，分析了滑坡滑动过程中隧道支护结构受力特征，得出了在施工期间及运营条件下滑坡滑动对隧道支护结构的影响规律。
Last, analyzing mechanical features of support structures in course of landslide, it draws the influence law of tunnel caused by landslide.
结构在施工期的平均风险远远高于使用期，开展大跨度斜拉桥施工期间的风险分析研究是十分必要的。
The average risk of structure in construction period is far higher than one in use period. To make the risk analysis study is very necessary in the construction of large-span cable-stayed bridge.
本文在总结现有施工期时变结构安全分析方法的基础上，引入4d -CAD和建筑信息建模技术，提出了基于4d信息模型的施工期安全分析模型和系统架构。
By inducting 4d-cad and building information modeling technologies, a safety analysis model and system framework were proposed in this paper based on the summarization of current analysis methods.
现浇混凝土结构施工期间普遍存在早期变形裂缝问题，一直未能得到有效解决。
During the construction period, early deformation cracks are always prevalent for cast-in-place concrete members, which have not been effectively resolved.
再生混凝土的早期抗压强度和弹性模量对于该类结构施工期的安全性具有重要影响。
The mechanical properties of recycled aggregate concrete at early age are very important for the construction projects safety using this kind of material.
本文采用现场试验和数值模拟分析相结合的方法，对高速公路隧道在施工期间及运营期间长期阶段支护结构的安全性、可靠性进行了分析。
The paper adopts field test method and numerical simulation method to analyze the reliability of secondary lining during the construction and long term usage of the tunnel.
本文采用现场试验和数值模拟分析相结合的方法，对高速公路隧道在施工期间及运营期间长期阶段支护结构的安全性、可靠性进行了分析。
The paper adopts field test method and numerical simulation method to analyze the reliability of secondary lining during the construction and long term usage of the tunnel.
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