下梁

This title will do the architecture design for the office building and give some illumination , will tell of the disposal of structure and draw the reasonable columniation plan according to the architecture design and the correlative codes.

本文将对办公楼进行建筑设计，并对设计给予相应的说明，详诉本办公楼的结构布置，根据建筑设计和相关规范条款给出合理的柱网图；在综合考虑了结构在各种恒载、活载、风荷载以及地震荷载作用下的情形后，详细的分析了结构在风荷载和地震荷载作用下的横向和纵向的各种性能，具体的计算了结构的梁、柱的弯矩、轴力、剪力，并进行了相应的内力组合，并由此进行了框架配筋部分，最后完成了柱下独立基础的有关计算。

Fig 1 At the experimental side, two weeks after operation (HE ×100) Many pieces of cartilage cells and spindle-shaped mesenchymal cells were found, by light microscope Fig 2 At the experimental side, twelve weeks after operation (HE ×100) Medullary cavity had formed, which contained hemoblasts and adipocytes, but the trabculae was not typical, by light microscope Fig 3 At the experimental side, twenty-four weeks after operation (HE ×100) The typical cancellous bone had formed, by light microscope Fig 4 At the control side, twenty-four weeks after operation (HE ×100) A large part of CXB was degraded, resorbed and replaced by fibrous tissue, but there was'not any new formed bone, by light mocroscope

图1 实验侧术后2周(HE ×100)镜下可见很多软骨细胞条索和团块生成及大量梭形间充质细胞图2 实验侧术后12周(HE ×100)镜下可见有髓腔形成，内含有造血和脂肪细胞，骨小梁尚不典型图3 实验侧术后24周(HE ×100)镜下可见形成典型的松质骨结构图4 对照侧术后24周(HE ×100)镜下可见大部分CXB被降解吸收，为纤维组织替代，无新骨形成

The horizontal bending moment and bending stress of the crossbeams rise quickly with increasing of the constraint stiffness of the lower chord joint to the crossbeam, the axial stress of the low chords and the continuous length of the floor system and with decreasing of the distance between the stringer and the low chord.

桥面系的连续长度和下弦杆的轴应力越大、下弦杆结点对于横梁的约束刚度越大、纵梁与下弦杆的距离越小，横梁的面外弯矩和弯曲应力越大。

The internal forces of the main arch springers are calculated in different rise-span ratios of top and bottom arch ribs. The internal forces of arch ribs and deformations of main spans are calculated in 1/5, 1/4 rise-span ratios of top and bottom stacked arch ribs and in 1/5 rise-span ratio of dumb-bell arch ribs.

给出上、下拱肋为不同矢跨比情况下的主拱拱脚截面内力，当叠合拱桥的上、下拱肋矢跨比分别采用1/5、1/4与矢跨比为1/5的哑铃拱拱肋的内力和主梁及拱顶变形计算结果。

Meanwhile, the active vibration control of the sandwich beam with the PCMTS cores was studied.

针对含有1-3型PCMTS芯材的夹芯梁结构，实验研究了PCMTS在静电场作用下的驱动特性，并利用PCMTS芯材对夹芯梁的振动进行了主动控制实验。

Numerical results show that the vibration characteristic and dynamic stability of the rotating ER sandwich beam can be adjusted when it subjected to an electric field, and the ER material layer can be used to improve the dynamic stability of the rotating flexible beams.

故在一定的条件下，可以通过控制作用于电流变夹层梁的电场强度来调节旋转运动柔性梁的振动特性，提高结构的动力稳定性。

Due to moment resisting connections are made in both directions in steel frames, so beam-to-column web connections are generally as flange connection. The construction and performance under load of web connections are different from flange connections, and there are more difficulties for theory analysis and design. Studies on mechanism of beam-to-column web connections under cyclical load are not only significant to the theoretical research, but also important in practice.

钢结构框架一般纵横两个方向均为框架，梁柱腹板连接非常普遍，构造和受力性能与翼缘连接不同，而且理论分析和设计更为困难，研究钢框架梁柱腹板连接在循环荷载作用下的受力性能和破坏机理并提出抗震设计对策，具有重要的理论意义和重大的工程应用价值。

The unbonded partially prestressed concrete flat-beam frame structure has been used in the practice project in our country, but the aseismatic study of this structure is not perfect at present, study on theory is lagged behind the demand of engineering apply. It has important theoretic meaning and applied value to go deep into the examinational study about the prestressed concrete flat-beam frame structures.This thesis sums up the study of the RC flat-beam frame structure, the PC frame structure, the steel-fiber concrete, the performance of the steel-fiber concrete and its influence to the seismic resistance of the frame.

近年来国内已经开始在实际工程中采用无粘结部分预应力混凝土扁梁框架结构，但是目前对这种结构形式的抗震研究工作还不完善，理论研究已滞后于工程应用的需要，因此深入进行扁梁框架结构的研究，在经济合理的情况下确保该结构的抗震安全性具有重要的理论意义和应用价值。

During the period of construction by the cantilever erection construction method, bridge experiences not only the process of generating girder in the stage of T rigid frame, but also the process of system transformation, so bridge has experienced a great complex stress process, in order to ensure the security of bridge during the whole stage of construction, the stress control and geometry control must be made during the stage of construction of bridge.

近些年来，我国随着经济的快速增长，出现了建造大跨度桥梁的高潮，预应力混凝土技术的迅速推广应用以及建造预应力混凝土连续梁桥的各种先进施工方法应运而生，加快了桥梁的施工进度，使得预应力混凝土连续梁桥的跨越能力不断增大，悬臂拼装施工方法就是在这种背景下产生并发展起来的。

In cases of several boundary conditions,the critical loads of Timoshenko beam are given and compared with the results of Euler beam.

在几类边界条件下，具体求解了线性弹性Timoshenko梁的临界载荷，并与Euler梁的结果进行比较。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！