scholarly journals Seismic actions induced by cladding panels on precast concrete frame structures

2018 ◽  
Vol 6 (3) ◽  
pp. 1-6
Author(s):  
Bruno Dal Lago ◽  
Francesco Foti ◽  
Luca Martinelli
Keyword(s):  
Precast Concrete ◽  
Rigid Bodies ◽  
Frame Structure ◽  
Eurocode 8 ◽  
Seismic Action ◽  
Concrete Frame ◽  
Out Of Plane ◽  
Connection System ◽  
Cladding Panels ◽  
Mechanical Devices

The strong earthquakes occurred in Southern Europe in the last decade pointed out a poor seismic performance of the connection system of the cladding of precast industrial structures. The cladding of these buildings usually consists of sandwich concrete panels of remarkable mass, connected to the frame structure with mechanical devices. The estimation of the out-of-plane seismic action on these connections is a key step for their correct proportioning. However, the formulation currently provided in the Eurocode 8 for the estimation of the seismic action on non-structural elements was calibrated with different objectives. Furthermore, given there is no in-plane structure-panel interaction, a quote of the panel mass is lumped in correspondence of their connection for a correct proportioning of the frame structure. The designers need to make assumptions on both aspects that often bring to remarkably different solutions. The paper presents a consistent dynamic formulation of the problem of the vibration of rigid bodies connected with cantilever columns. The solution brings to closed-form equations to evaluate the exact out-of-plane action on the connections and the correct amount of panel mass to be lumped.

Experimental investigation of seismic performance of a novel isostatic frame-cladding system

2022 ◽  
pp. 136943322110572
Author(s):  
Xun Chong ◽  
Pu Huo ◽  
Linlin Xie ◽  
Qing Jiang ◽  
Linbing Hou ◽  
...  
Keyword(s):  
Seismic Performance ◽  
Damage Evolution ◽  
Failure Modes ◽  
Static Load ◽  
Precast Concrete ◽  
Frame Structure ◽  
Deformation Capacity ◽  
Load Bearing Capacity ◽  
Cladding Panels ◽  
Energy Dissipation Capacity

A new connection measure between the precast concrete (PC) cladding panel and PC frame structure is proposed to realize a new kind of isostatic frame-cladding system. Three full-scale PC wall-frame substructures were tested under the quasi-static load. These substructures included a bare wall-frame specimen, a specimen with a cladding panel that has no opening, and a specimen with a cladding panel that has an opening in it. The damage evolution, failure mode, load-bearing capacity, deformation capacity, and energy dissipation capacity of three specimens were compared. The results indicated that the motions of the cladding panels and the main structures were uncoupled through the relative clearance of the bottom connections, and three specimens exhibited approximately identical failure modes and seismic performance. Thus, the reliability of this new isostatic system was validated.

scholarly journals Experimental Study of a New Precast Prestressed Concrete Joint

2018 ◽  
Vol 8 (10) ◽  
pp. 1871 ◽  
Author(s):  
Xueyuan Yan ◽  
Suguo Wang ◽  
Canling Huang ◽  
Ai Qi ◽  
Chao Hong
Keyword(s):  
Energy Dissipation ◽  
Seismic Performance ◽  
Prestressed Concrete ◽  
Precast Concrete ◽  
Concrete Strength ◽  
Frame Structure ◽  
Loading Test ◽  
Concrete Frame ◽  
Concrete Joints ◽  
Precast Prestressed Concrete

Precast monolithic structures are increasingly applied in construction. Such a structure has a performance somewhere between that of a pure precast structure and that of a cast-in-place structure. A precast concrete frame structure is one of the most common prefabricated structural systems. The post-pouring joint is important for controlling the seismic performance of the entire precast monolithic frame structure. This paper investigated the joints of a precast prestressed concrete frame structure. A reversed cyclic loading test was carried out on two precast prestressed concrete beam–column joints that were fabricated with two different concrete strengths in the keyway area. This testing was also performed on a cast-in-place reinforced concrete joint for comparison. The phenomena such as joint crack development, yielding, and ultimate damage were observed, and the seismic performance of the proposed precast prestressed concrete joint was determined. The results showed that the precast prestressed concrete joint and the cast-in-place joint had a similar failure mode. The stiffness, bearing capacity, ductility, and energy dissipation were comparable. The hysteresis curves were full and showed that the joints had good energy dissipation. The presence of prestressing tendons limited the development of cracks in the precast beams. The concrete strength of the keyway area had little effect on the seismic performance of the precast prestressed concrete joints. The precast prestressed concrete joints had a seismic performance that was comparable to the equivalent monolithic system.

Literature Review of Precast Concrete Frame Structures in Civil Engineering

2012 ◽  
Vol 568 ◽  
pp. 3-6
Author(s):  
Ke Wei Ding ◽  
Xiang Zhang
Keyword(s):  
Literature Review ◽  
Seismic Behavior ◽  
Civil Engineering ◽  
Precast Concrete ◽  
Engineering Application ◽  
Frame Structure ◽  
Frame Structures ◽  
Structure System ◽  
Concrete Frame ◽  
Performance Research

As construction industrialization is springing up in our country, precast concrete frame structure,as a result,has been developing rapidly. Based on a host of articles about precast concrete frame structure system at home and abroad,it,in this paper,summarized and prospected the latest stress performance research of precast concrete frame structure and up-to-date engineering application. Further more, total assembled node and seismic behavior of precast concrete frame structure is also pointed out as what is needed to study in the future.

Evaluation of out-of-plane seismic performance of column-to-column precast concrete cladding panels in one-storey industrial buildings

2017 ◽  
Vol 47 (2) ◽  
pp. 397-417 ◽  
Author(s):  
Andrea Belleri ◽  
Fabrizio Cornali ◽  
Chiara Passoni ◽  
Alessandra Marini ◽  
Paolo Riva
Keyword(s):  
Seismic Performance ◽  
Precast Concrete ◽  
Industrial Buildings ◽  
Out Of Plane ◽  
Cladding Panels

scholarly journals Ecological Efficiency of Life Cycle of Concrete Fabricated Composite Slab in Earthquake Area

2021 ◽  
pp. 189-196
Author(s):  
Huang Bo, Yu Pei
Keyword(s):  
Precast Concrete ◽  
Great Influence ◽  
Frame Structure ◽  
Wall Structure ◽  
Width Ratio ◽  
Vibration Period ◽  
Concrete Frame ◽  
Finite Element Software ◽  
Practical Engineering ◽  
Construction Mode

With the development of prefabricated buildings, the construction mode of buildings has changed greatly. Infilled wall is an important part of architecture. The traditional manual masonry method is not suitable for the construction of prefabricated buildings. Precast concrete infilled wall, as a form of infilled wall suitable for the construction of prefabricated buildings, came into being. Infilled wall has a great influence on the performance of frame structure. Compared with the traditional masonry infilled wall, the concrete infilled wall has greater stiffness, better integrity and stronger bearing capacity. Based on the existing research, this paper analyzes the influence of the height width ratio of the concrete infilled wall, the wall thickness, and the tie mode with the frame on the structural performance through the finite element software Atena. Combined with the results of practical engineering modal analysis, this paper evaluates the value method of natural vibration period of concrete frame infilled wall structure, and puts forward some suggestions for Chinese codes.

Static load test on progressive collapse resistance of fully assembled precast concrete frame structure

2019 ◽  
Vol 200 ◽  
pp. 109719 ◽  
Author(s):  
Yun Zhou ◽  
Taiping Chen ◽  
Yilin Pei ◽  
Hyeon-Jong Hwang ◽  
Xiang Hu ◽  
...  
Keyword(s):  
Static Load ◽  
Progressive Collapse ◽  
Precast Concrete ◽  
Load Test ◽  
Frame Structure ◽  
Static Load Test ◽  
Concrete Frame ◽  
Collapse Resistance

scholarly journals Study on Detailing Design of Precast Concrete Frame Structure

2018 ◽  
Vol 128 ◽  
pp. 012085 ◽  
Author(s):  
Tian Lida ◽  
Li Liming ◽  
Liu Kang ◽  
Geng Jiao ◽  
Li Ming
Keyword(s):  
Precast Concrete ◽  
Frame Structure ◽  
Concrete Frame

scholarly journals Experimental Study on A Novel Dry Connection for a Precast Concrete Beam-To-Column Joint

2019 ◽  
Vol 11 (17) ◽  
pp. 4543 ◽  
Author(s):  
Zhong ◽  
Xiong ◽  
Chen ◽  
Deng ◽  
Chen ◽  
...  
Keyword(s):  
Failure Mode ◽  
Precast Concrete ◽  
Steel Plates ◽  
Hysteretic Behavior ◽  
Frame Structure ◽  
Computation Method ◽  
Initial Stiffness ◽  
Concrete Frame ◽  
Beam Design ◽  
Precast Buildings

At present, precast buildings have become the focus of the building industrialization, and the precast concrete frame structure has been widely used in the construction industry. On this background, a novel precast concrete frame with a bolt connection joint was proposed in this paper. The novel connections include connection steel plates, bolts and rubber layers. To investigate the seismic performance of the precast structure, two full-scale, precast, cruciform, reinforced concrete specimens, and a monolithic counterpart, are tested under reversed cyclic loading. For the precast specimens, two different thickness rubber layers are applied in the connection region, respectively. Seismic behavior was evaluated based on failure mode, hysteretic behavior, stiffness degeneration, ductility and energy dissipation. The results indicated that precast specimens had almost the same ultimate bearing capacity as the cast-in-place ones, and the failure mode is also the same. The precast specimens satisfied the strong column-weak beam design concept. Additionally, the initial stiffness is obviously decreased by adding rubber washers at the joint region, showing a semi-rigid characteristic. At the end of this paper, an equivalent stiffness computation method of the precast joint is discussed.

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