破坏荷载

Through the low cyclic load test of eight high strength concrete-filled square steel tubular columns, considering the effect of the axial compression ratio, steel ratio and slenderness ratio, the hysteretic curve, ductility, degradation of stiffness, energy dissipation capacity, failure mechanism and characteristics of the specimens were researched.

摘要］以轴压比、含钢率和长细比为参数，进行了8根方钢管高强混凝土柱的低周反复荷载试验，研究分析了该类构件的滞回曲线、延性、刚度退化、耗能能力、破坏机理和破坏特征；并与型钢高强混凝土柱的受力性能进行了比较分析。

The seismic performance such as failure pattern,fai lure mechanism,hyst eresis loop curves,restoring-force model,displacement-restoring capacity,displac ement ductility,rigidity degradation and energy dissipation of two pieces of HPC frame with double-story and double-span are studied systematically by testing o f low reversed cyclic loading.

通过低周反复荷载试验对两榀双层双跨高性能混凝土框架的破坏形态、破坏机制、滞回曲线、骨架曲线、恢复力模型、变形恢复能力、位移延性、刚度退化、耗能能力等性能进行了较为深入系统的研究。

The relation between the length of plastic zone along the crack line and external load is established by the matching condition of the elastoplastic fields on the boundary.

利用脆断区长度和荷载之间的关系，从理论上分析了断续节理产生劈裂破坏的贯通机理，并且确定了断续节理岩体发生劈裂破坏的强度。

According to the function of the structure and the mechanics characteristic of the building, the principle of break melt safely destroy is presented by analyzing every possible destroyed patten of the structure with a framewok. According to the document 1, in this paper the stability calculating equation of accessorily built air raid basement with a framework under the load of shock wav...

根据建筑物的结构性能和力学特点，针对框架建筑在冲击波作用下的各种可能破坏形态进行分析，提出&断融安全破坏&原则，依据罗文豹提出的核爆炸冲击波作用下高层建筑防空地下室的稳定性分析[1] ，建立框架结构下的附建式防空地下室在冲击波荷载作用下的稳定计算方程，提出结构构造措施。

A calculation method for the ultimate tip resistance of rock socketed pile was conducted. The geostatic stress of soil and rock was considered as homogeneous load on the tip plane of the pile, and then the force of the pile tip was decomposed into some simple forces. According to the theory of slipping line, the most dangerous point on the tip plane of the pile was confirmed, and the stress of the point was obtained according to Mindlin solution.

为求出桩端极限承载力的表达式，本文将嵌岩段以上岩土层自重视为作用在基岩半平面上的均布荷载，把桩端合力分解为相对简单的荷载作用于基岩平面上，利用滑移线理论并通过叠加的方法分析出桩端基岩破坏时的最危险点。

C arbitrarily inequiaxial special-shaped columns subjected to biaxially eccentric loading is made, the failure character is clarified under different axial compression ratio, the strain distribution in the section under yielding state and limit state is presented, and the corresponding M -φ curves are drew.

接着又对不等肢异形柱在其最不利荷载方向上进行了双向压弯过程破坏机理分析，揭示了不等肢异形柱构件在不同轴压比下的破坏特征，并给出了截面达到屈服状态和极限状态时截面内钢筋和混凝土的应变分布，同时绘制了相应的M-φ关系曲线。

A theoretical model was developed based on the relation between hysteresis coefficient of strain in the steel and degradation of bond strength, for the load bearing capacity of corroded RC beams. The model reflects the mechanical characteristics and failure mechanism of the beam under static and repeated loading.

通过研究腐蚀梁中钢筋应变滞后系数与粘结强度退化比的关系，建立静荷载和重复荷载下与腐蚀梁的受力特征和破坏机理相一致的承载力计算模型。

The cracking load , ultimate load and failure process of masonries are analyzed , which in contrast with the normal cement mortar .

进行了粉煤灰砌筑干粉砌体的抗压性能试验研究，分析了砌体的开裂荷载，极限荷载及其破坏过程，并与普通水泥砂浆砌体进行了对比。

Trough the modeling, the destroy process and mechanism of the single-layer reticulated shell under impact has been investigated.

通过和其静力特性的比较，研究了冲击荷载作用下结构的弹性和弹塑性响应特征，以及冲击荷载作用下的破坏过程和机理。

But because of its big slenderness ratio, smaller rigidity and damping, it is easy to cause a larger vibration in the windload and iceload function and so on, mast structure destruction accidents frequently occurred, has caused engineering and academic circles\\\s concern, this article summarizes the main structure damage diagnosis methods, carrys on preliminary dynamic analysis and the time-frequency distribution analysis with the vibration signal to the mast structure, and proposes the signal processing method is a appropriate method on the diagnosis to the mast damage.

但是，由于桅杆结构长细比很大，刚度、阻尼较小，在风荷载、裹冰荷载等作用下容易产生较大幅度的振动，桅杆结构的破坏事故时有发生，引起了工程界和学术界的重视，本文总结了几种主要的结构损伤诊断方法，并对桅杆结构进行了动力分析和振动信号时频分析，并提出信号处理的时频方法对桅杆损伤进行诊断比较合适的。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。