The concrete composite box net joint floor is one kind of new-style floor. It is composed of the small prefabricated component with the cast-in-place concrete rib beam. The box and rib beam form a whole structure that has continuous box section and undertake the load together.
混凝土叠合箱网梁楼盖是一种新型的楼盖形式，是由小型预制构件与现浇混凝土肋梁结合成具有连续箱型截面的整体结构，箱体与肋梁共同受力。
Key words:big space; composite box; net beam ceiling; rib beam; board uniting with beam; polymerization cement slurry
关键词］大空间；叠合箱；网梁楼盖；肋梁；梁板合一；聚合水泥浆
Transportation machinery products mainly include: DT-type, DT Ⅱ-fixed belt conveyors; DJA steep Rib-belt conveyor; SSJ, STJ, STD-mine belt conveyor; HQ, DY mobile conveyor belt Machine; TL fuzzy NC measurement belt machine; TD, HL, TH, NE-vertical bucket elevator; GX, LS-screw conveyor; MS, MC, MZ-buried scraper conveyor; FU, LU-linked - Conveyor; KLR-box chain Cleaner; series of continuous feeding and other transportation equipment and accessories.
输送机械产品主要有：DT型、DTⅡ型固定式带式输送机；DJA型大倾角挡边带式输送机；SSJ、STJ、STD型井下用带式输送机；HQ、DY型移动带式输送机；TL型模糊数控计量皮带机；TD、HL、TH、NE型垂直斗式提升机；GX、LS型螺旋输送机；MS、MC、MZ型埋刮板输送机；FU、LU型链式输送机；KLR型框链除渣机；系列喂料机等连续输送机械设备及配件。
Box girder; Deck paving; Sensitivity; Longitudinal stiffened rib
钢箱梁；桥面铺装；敏感性；纵向加劲肋
Thesis is divided into five parts, the main contents include: a long beam and truss repair and strength calculation, Liang Lu-board repair, the following box and wing rib repair, box rib injury at the time of small-scale repairs, large-scale box rib injury at the time of repair and a new frame, the positioning rib installation.
论文共分5个部分，主要内容包括：梁和长桁的修理及强度的计算、梁履板的修理、隔框和翼肋的修理、框肋小范围损伤时的修理、框肋大范围损伤时的修理及新框、肋的定位安装等。
The equivalent stiffened shell element is also developed for the U-rib stiffening flat steel box girder, and the equivalent stiffness of the U-rib stiffening plate is given and verified by examples.
三、针对扁平钢箱梁U形加劲板提出等效的加劲板单元，用两种方法讨论了等效加劲板单元等效换算板的横向分配刚度的计算方法和简化计算方法，并进行了算例验证。
Type Selection and Dynamic Analysis of Stiffening Rib in Column-box for Direct-drive Gear Hobbing Machine
零传动滚齿机立柱箱筋板选型及动态分析
Research on Mechanical Properties of Box Gird with Longitudinal Clapboard and Stiffening Rib The Effect of Stiffener to the Stability of I-steel Beams
箱梁加纵隔板和加劲肋后的力学性能研究加劲肋对工字形钢梁稳定承载力的影响
The paper gives the calculation formula of the steel box beam rib plate, side line length and coordinate of transition curve sections combined with construction practice.
本文结合施工实践，推导给出了缓和曲线段钢箱梁肋板、边线长度和坐标的计算公式，用于缓和曲线钢箱梁和其它结构梁的放样计算。
On the other hand the rib operon of the Bacillus subtilis was also modified: eliminating the rfn box, replacing the rib promoter by constructive bacteriophage promoter spol and taking the tetracycline resistance gene as a selectable marker etc.
另外我们对枯草芽孢杆菌中的核黄素操纵子做了进一步的优化和改造，主要包括：调控序列的去除、外源强启动子spol的加入、原启动子的去除以及四环素抗性基因的加入等。
Stability Study of Carrying Capacity of Box-section Steel Column with Internal and External Stiffening Rib
带内外加劲肋箱形截面钢塔柱稳定性承载力研究
The stiffening rib of box member used in Wuhu Yangtze River bridge is to ensure the local stability, and its effect to cp-value is not obvious.
芜湖桥箱形压杆的加劲肋对ψ值影响不明显，其主要作用在于增强构件的局部稳定。
The results show that width of box, nether structure, thickness of deck and U-rib, and transverse position of load all strongly influence the strain of pavement, however, the height of box makes little effect.
分析显示，动荷载作用下，箱梁宽度、下部结构、顶板厚度、U肋厚度、荷载通过的横向位置等均对应变产生了较大影响，而箱梁高度对应变的影响不大。
Analysis of Strength and Stability of Large-span Box Arch and Single Base Rib Lifting Closure
大跨度箱拱单基肋吊装合龙强度和稳定分析
Construction Technology of Box Arch Rib Cast-in-place of Extra Tied Arch Railway Bridge Calculation of stayed buckle cable forces for concrete filled steel tubular arch bridge with long span in process of lifting
铁路特大系杆拱桥箱形现浇拱肋施工技术大跨度钢管砼拱桥拱肋吊装中的扣索索力计算
Keywords:cast-in-place dense rib hollow ceiling; stress crack; crack detection; bamboo core box
关键词］现浇密肋空心楼盖；受力裂缝；裂缝检测；竹芯盒
According to an actual project, the cracks of a large span cast-in-place dense rib hollow ceiling embedded bamboo core box were analyzed synthetically from the design and construction aspects, through the present situation investigation and detection, checking of bearing capacity, and the stress characteristics. Some detailed suggestions are given to the engineers to avoid the similar accident.
摘要］结合实际工程，针对某大跨度预埋竹芯盒现浇密肋空心楼盖出现的裂缝，通过现状调查与检测，结构承载力验算，结合楼盖的受力特点，从设计、施工等方面对现浇楼盖产生裂缝的原因进行了综合分析，并提出了具体意见与建议，以便引起设计、施工人员的重视，避免类似事故发生。
The box arched bridge without support single base rib closure lift technology
箱形拱桥无支架单基肋碰撞合龙吊装技术
Besides these, deck beam finite element analysis method can be applied flexibly to box girders with different cross-section or rib-plank structure and those without orthogonal support. FINITE ELEMENT CALCULATION FOR THE STIFFENED PLATE TYPE WATERBOX
板段元法适用于其他断面形状的箱梁结构或肋板式结构，也可用于斜交箱形直梁的分析，具有较好的适用性。加肋板式水室结构的有限元计算程序
Some Discussions on Structural Calculation of X-style Arch Bridge with Composite Beam Deck System of Steel Box Girder Arch Rib
钢箱拱肋组合梁桥面系提篮拱桥结构计算的几点探讨梁腋，拱腋，拱的托臂