板梁

The dynamic characteristics of R/C slab column-shear wall structures with and without spandrel beams and frame-shear wall structures are analyzed and compared with finite element method when its span and story number are changed.

采用有限元方法，改变结构的跨度和层数，对无边梁的板柱-剪力墙结构、带边梁的板柱-剪力墙结构和框架-剪力墙结构的动力特性进行对比分析。

Five full-scale specimens were tested in this study. One is unreinforced beam-to-column connection, and the other four specimens are reinforced with either shear tab or vertical stiffener at beam-to-column connection.

五组试体包含一组未补强之梁柱接头试体，与四组以剪力板或垂直加劲板补强梁柱接头处之试体。

However, in designing the beamless slabs with equivalent frame method, the stress is an average values along the depth of section, which varies with the normal service state. Compared with the results by finite element method, the results gained by equivalent frame method cannot satisfy the requirement under the normal service state. Therefore, the tendons of beamless slabs should be designed and arranged based on the results of FEM taking account into vertical load and prestressed load.

本文通过分析，认为采用等代框架法进行无梁板设计时，其内力是基于截面平均的结果，在正常使用状态与实际受力状态有很大的不同，通过对比等代框架法和有限元计算的正常使用极限状态应力可知，按等代框架法设计的预应力布置并不能保证其正常使用极限状态的要求，据此提出了应根据无梁板在竖向荷载和预应力共同作用下弹性有限元分析结果进行预应力筋布置的建议。

The traction arm includes: a first supporting plate slidably connected to a beam of the bench; a second supporting plate pivotally connected to the first plate for the rotation of the base about a first axis that is substantially horizontal and substantiallty at right angles to the front plane of the first plate for appllying the base to the repair bench; a third supporting plate pivotally connected to the second plate for the rotation of the base about a second axis that is substantially at right angles to the first axis; and pivoting elements for the rotation of the base about a third axis that is substantially at right angles to the second axis.

牵引杆包括：一可滑动地连接于修理台梁的第一支承板；一枢接于第一板、用于使底座绕一大体上水平且大体上垂直于将底座装在修理台的第一板的前平面的第一轴线而转动的第二支承板；一枢接于第二板、用于使底座能绕一大体上垂直于第一轴线的第二轴线转动的第三支承板；以及用于使底座能绕一大体上垂直于第二轴线的第三轴线转动的枢接件。

After being prefabricated, they will be carried to the point, and installed on the bridge. Seated very close to each bridge, prefabrication sheds are responsible for prefabricating girder boards and culvert cover boards. Dadoes are set up according to the number of girder boards. Two joist barrows and one 315KVA power transformer are fixed in prefabrication shed .

进行集中预制后用大型平板运输车运至各桥点进行安装，预制场设在各桥桥头附近，负责预制所有梁板及涵洞盖板，根据梁板数量设置台座，各预制场设龙门桁车2座，预制场安装315KVA 专用变压器一台。

Experimental expressions are obtained when the vertically inclined angle of steel webs changes, and they can be used for bridge design.

最后提出了波形钢腹板箱梁减小翘曲正应力的工程措施，研究了横隔板纵向间距与箱梁的高跨比之间的关系，并给出了当钢腹板倾斜角度变化时相应的横隔板最大间距的经验公式，以供设计参考使用。

Beam and slab install of Interchange of south of DanBen Expressway, offer keference for roof beam board installation ofthe similar bridge and consul

丹本高速公路本溪南互通立交的梁板安装，为同类桥梁的梁板安装提供参考。

Plate and beam is the element of over head traveling crane. Crack damage of plates and beams is the main fault forms of structure.

板和梁是冶金桥式起重机金属结构的基本组成单元，而这些金属结构的损伤多以板、梁的疲劳裂纹表现其故障形式。

Secondly, in the dissertation, the theories and methods of calculation on bridge deck system were discussed, and bridge deck system simplified as a beam was analyzed with the theory of elastically supported continuous beam and the method of deformation compatibility; through the theory of orthotropic plate being applied to analyzing the bridge deck system which was assumed an elastically supported continuous plate, certain theoretical derivations were made and some calculation formulas were given.

其次，本文研究论述了桥道系的计算理论和方法，将桥道系简化为梁，利用弹性支承连续梁理论和变形协调法进行分析；把桥道系视为弹性支承连续板，利用正交异性板理论进行分析，作了一定的理论推导，并给出了相关计算公式。

The entire Superstructure cross-section, except for traffic barrier, shall be considered to be placed at one time for purposes of determining support requirements and designing falsework girders for their stresses and deflections, except as follows: For concrete box girder bridges, the girder stems, diaphrams, crossbeams, and connected bottom slabs, if the stem wall is placed more than 5 days prior to the top slab, may be considered to be self supporting between falsework bents at the time the top slab is placed, provided that the distance between falsework bents does not exceed 4 times the depth of the portion of the girder placed in the preceding concrete placements.

整个上部结构截面除交通障碍，应被视为在一个确定的要求和支持他们的设计应力和挠度除，脚手架时间放在梁的目的如下：对于混凝土箱形梁桥，主梁茎，diaphrams，横梁，和连接底板，如果干墙放置超过5天前向顶板，可能被认为是自我支持之间的脚手架本茨当时顶端板放置，只要脚手架茨之间的距离不超过4倍，在前面的混凝土主梁部分存款放在深度。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。