权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

Structural Design of Connections in Precast Reinforced Concrete Structures

预制钢筋混凝土结构连接结构设计

基本信息

批准号：
14550579
负责人：
MATSUZAKI Yasuhiro
金额：
$ 1.92万
依托单位：
Tokyo University of Science
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2002
资助国家：
日本
起止时间：
2002 至 2003
项目状态：
已结题

项目摘要

Shear transfer across a definite interface must frequently be considered in the design of precast concrete connections. As the following various resistances in the effecting shear transfer strength are given : (1) dowel action, (2) shear-key, (3) friction with axial force, (4) adherence on the concrete surface. The purpose of this paper is to reveal the compound effects of the various resistance elements.Basic experiments on the interface shear transfer at the precast joint faces were carried out. Fifteen panel type specimens with the same dimensions were tested.The specimens used for investigation of the shear transfer mechanism consisted of two concrete blocks. The dimensions and reinforcement details of all the specimens were identical : the width of 900 mm, the height of 1400 mm, the thickness of 225 mm with an interface of 860 mm × 225 mm at the height of 700 mm from the base. The following parameters were investigated : (a) the kind of shear resistance in concrete connections [fr … More iction with axial force, dowel bar, shear-key, and compound of various elements], (b) the direct force acting transverse to the concrete interface [N=0,1500,-220 kN].The friction with axial force can roughly be evaluated from the hysteresis loop as follows : (a) Friction can be estimated from the first positive maximum strengths of the specimens under different axial force levels, and the force is proportional to the axial force. (b) Friction with axial force under cyclic loading may be taken at the flat level during reloading to the opposite direction until it meets the original displacement.The dowel action can roughly be evaluated from the hysteresis loop as follows : (a) Substantial stiffness decreases gradually. (b) The maximum shear displacement with cycling increases. (c) The pinching effect is very pronounced, and the area of hysteresis loops with cycling decreases.The stiffness of the hysteresis loop is high and the displacement of that is minimal until the compressive failure of shear-key. The resistance after compressive failure is constant.Research results lead to the following : (a) Total shear resistance can be evaluated as the sum total of each shear transfer element at the same shear displacement. (b) Dowel action is not influenced by compressive axial force. (c) Structural performance (resistance and stiffness) of shear-key increases by the compressive axial force.Basic experiments on concrete connections were conducted on the shear transfer and the shear displacement behavior in concrete connections under shear and axial force. The following conclusions may be drawn.(a) The shear transfer mechanism and shear slipping displacement behavior in concrete connections is clarified. And the shear transfer mechanism is verified by the structural experiments.(b) The shear transfer strength can be evaluated as the sum total of each shear transfer element at the same shear displacement. The evaluation equation is also proposed. Less

在预制混凝土连接的设计中，必须经常考虑跨特定界面的剪切传递。给出了影响剪切传递强度的以下各种阻力：（1）销钉作用，（2）剪切键，（3）轴向力摩擦，（4）混凝土表面的粘附力。本文的目的是揭示各种阻力元素的复合效应。对预制接合面的界面剪力传递进行了基础实验。测试了十五个相同尺寸的板式试件。用于研究剪切传递机制的试件由两块混凝土块组成。所有试件的尺寸和加固细节均相同：宽度为 900 毫米，高度为 1400 毫米，厚度为 225 毫米，距底座高度 700 毫米处的界面为 860 毫米 × 225 毫米。研究了以下参数：(a) 混凝土连接中的抗剪力类型 [fr … More 与轴向力、传力杆、剪切键和各种元件的复合物的摩擦力]，(b) 横向作用于混凝土界面的直接力 [N=0,1500,-220 kN]。轴向力的摩擦力可以从磁滞回线粗略地评估如下： (a) 摩擦力可以可以根据不同轴向力水平下试件的第一个正最大强度进行估算，并且该力与轴向力成正比。 (b) 循环加载下的轴向力摩擦力可在反向加载过程中在平坦水平上取，直至满足原始位移。销钉作用可从磁滞回线大致评估如下： (a) 实体刚度逐渐减小。 (b) 最大剪切位移随着循环的增加而增加。 (c) 挤压效应非常明显，并且磁滞回线的面积随着循环而减小。磁滞回线的刚度很高，并且在剪力键压缩破坏之前其位移很小。压缩破坏后的阻力是恒定的。研究结果得出以下结论：（a）总剪切阻力可以评估为相同剪切位移下每个剪切传递单元的总和。 (b) 销钉作用不受轴向压缩力的影响。 (c) 抗剪键的结构性能（阻力和刚度）通过轴向压缩力而增加。对混凝土连接进行了基本实验，研究了混凝土连接在剪切力和轴向力作用下的剪切传递和剪切位移行为。可以得出以下结论：(a)阐明了混凝土连接中的剪切传递机制和剪切滑移位移行为。并通过结构实验验证了剪切传递机理。(b)剪切传递强度可以用各剪切传递单元在相同剪切位移下的总和来评价。还提出了评价方程。较少的

项目成果

期刊论文数量（8）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

鉛直接合部を有するプレキャスト梁部材のせん断性状に関する研究

竖向缝预制梁构件抗剪性能研究

DOI：
发表时间：
2003
期刊：
日本建築学会大会学術講演梗概集 C-2
影响因子：
0
作者：
鈴木麻悠美;山口浩一郎;中野克彦;松崎育弘
通讯作者：
松崎育弘

Design Method and Compound Effect Considering Deformation of Shear Transfer Elements in Precast Concrete Structure

预制混凝土结构中考虑剪力传递单元变形的设计方法及复合效应

DOI：
发表时间：
2004
期刊：
13th World Conference on Earthquake Engineering, Vancouver, Canada
影响因子：
0
作者：
中野克彦;松崎育弘
通讯作者：
松崎育弘

鉛直接合部を有するプレキャスト梁部材の曲げ・せん断性状に関する研究

竖向缝预制梁构件弯剪性能研究

DOI：
发表时间：
2004
期刊：
日本建築学会大会学術講演梗概集 C-2
影响因子：
0
作者：
中野克彦;岡野大志;鈴木麻悠美;杉山智昭;松崎育弘
通讯作者：
松崎育弘

松崎育弘, 中野克彦, 他2名: "プレキャストRC部材接合面におけるせん断力の伝達性状に関する研究"日本建築学会大会学術講演梗概集. C-2. 655-656 (2002)

Ikuhiro Matsuzaki、Katsuhiko Nakano 等 2 人：“预制 RC 构件接合面剪力传递特性的研究”日本建筑学会会议记录 C-2（2002 年）。

DOI：
发表时间：
期刊：
影响因子：
0
作者：
通讯作者：

Study on Flexural and Shear Performance of Precast RC Beams with Vertical Joint

竖向缝预制RC梁的弯剪性能研究

DOI：
发表时间：
2004
期刊：
Summaries of Technical papers of Annual meeting Architectural Institute of Japan C-2
影响因子：
0
作者：
Katsuhiko NAKANO;Hiroshi OKANO;Ayumi SUZUKI;Tomoaki SUGIYAMA;Yasuhiro MATSUZAKI
通讯作者：
Yasuhiro MATSUZAKI