Seismic behavior of prefabricated reinforced concrete stair isolated by high damping rubber bearings

Zhang, Chao; Ding, Chao; Zhou, Yun; Wang, Guangyu; Shi, Fei; Huang, Weiyuan

doi:10.1007/s10518-022-01548-z

Cited by 8 publications

(4 citation statements)

References 48 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The second method aims at eliminating the detrimental multiple‐diagonal strut mechanism within the infill wall with a door opening by isolating the infill wall from the boundary frame. To achieve this goal, one option is creating flexible joints using deformable materials surrounding the interfaces of the infill walls and frame to isolate the infill from the primary structure 42–44 . The optional deformable materials include the silicone sealant, 45 polystyrene plate, 46 cellular material, 47 Styrofoam, 48 and polyurethane foam 49 .…”

Section: Introductionmentioning

confidence: 99%

“…To achieve this goal, one option is creating flexible joints using deformable materials surrounding the interfaces of the infill walls and frame to isolate the infill from the primary structure. [42][43][44] The optional deformable materials include the silicone sealant, 45 polystyrene plate, 46 cellular material, 47 Styrofoam, 48 and polyurethane foam. 49 Moreover, forming sliding connectors represents another viable choice to protect the fragile boundary of the infill.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Experimental and analytical studies of infill wall with sliding joints considering a door opening

Huang,

Niu,

Zhang

et al. 2024

Earthq Engng Struct Dyn

Self Cite

View full text Add to dashboard Cite

Semi‐rigid steel frame stands out due to its remarkable deformation capability under seismic loading, while the introduction of partitioned walls would disturb the expected seismic behavior of the infilled steel frames. Furthermore, the presence of door openings might exacerbate these negative effects. To mitigate the detrimental multiple‐diagonal strut effect of traditional infill walls around the door opening, an innovative low‐damage wall panels system: prefabricated infill wall panels with a door opening and sliding joints are presented for semi‐rigid steel frames. For testifying the effectiveness of the proposed structure, a quasi‐static test was carried out on three half‐scaled steel frames: a bare frame, a frame infilled with conventional wall panels with a door opening, and a frame infilled with the novel wall panel system with a door opening. Experimental results reveal that the developed innovative wall panels with a door opening could avoid unfavorable crack developments and opening deformation around the door area. It is mainly attributed to the releasement of the adverse multiple‐diagonal strut mechanism of traditional wall panels with door openings. Thus, the presented infilled frame showcases seismic performance similar to the bare steel frame, while having a higher energy dissipation capacity. Moreover, the developed analytical prediction method based on the superposition principle could accurately estimate the lateral load‐carrying capacity of the structures. Due to negligible deformation of the both bottom infill wall panel and the door opening, the innovative infill wall only contributes about 10% lateral load‐carrying capability to the infilled frame.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Experimental and analytical studies of infill wall with sliding joints considering a door opening

Huang,

Niu,

Zhang

et al. 2024

Earthq Engng Struct Dyn

Self Cite

View full text Add to dashboard Cite

show abstract

“…In the overall structural system, stairs are indispensable and important components, and they have the characteristics of high standardization and suitability for prefabrication. Therefore, there have been many studies on prefabricated concrete stairs, such as static performance testing and evaluation [1][2][3], seismic performance analysis [4][5][6][7][8][9], connecting nodes of prefabricated stairs [10], construction technology research [11], analysis of prefabricated stair mold [12], etc.…”

Section: Introductionmentioning

confidence: 99%

Research on the Performance of Lightweight Prefabricated Concrete Stairs with a Special-Shaped Hollow Landing Slab

Wang,

Sheng,

Wang

2024

Buildings

View full text Add to dashboard Cite

In order to further improve the technical advantages of lightweight prefabricated concrete stairs, a kind of prefabricated stair system using a special-shaped hollow landing slab was proposed. Based on the detailed structural composition display, the design method for the main components (prefabricated flight and special-shaped prefabricated hollow landing slab) was proposed and a design application example was provided. Furthermore, specialized experimental and numerical simulation studies were conducted on the key component—the special-shaped prefabricated hollow landing slab. The research results indicated that this new kind of lightweight prefabricated concrete stairs using a special-shaped prefabricated hollow landing slab has reasonable construction, an effective design method, a clear force transmission mechanism, moderate component weight, and high transportation and installation convenience.

show abstract

“…Measures are usually taken for the connecting nodes of the stair support to detach the stairs from the main structure to eliminate the diagonal bracing effect of the stair flight on the main structure under seismic action, which can prevent the stair from being damaged prematurely under the rare earthquake and also avoid its adverse effect on the main structure [4][5][6][7] . Scholars have recently researched the seismic performance enhancement of staircases and staircase framing units and developed different types of staircase seismic isolation bearings [8][9][10] .…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on the New Type of Connecting Nodes of Prefabricated Stairs Using Flexible Grouting Material

Zhang,

Huo,

Liu

et al. 2023

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

In recent years, prefabricated buildings have been developing positively in China. Prefabricated concrete stairs are widely used in prefabricated concrete buildings because of their quick construction, convenient handling, reduced cost, and premium appearance. They also have promising application potential in cast-in-place concrete structures and steel buildings. The stairs are important escape routes during earthquakes and play the role of “safety islands.” Therefore, the study on the seismic performance of connecting nodes of prefabricated concrete stairs is significant. For a new flexible-hinge connecting node of the prefabricated stairs with flexible grouting material (FGM), the low-frequency cyclic loading test is carried out in this paper to study the stress performance of the end nodes of the stairs under in-plane and out-of-plane low-frequency cyclic loading. The results show that the new flexible-hinge connecting nodes of the prefabricated concrete stairs have moderate bearing capacity and stiffness, which can mitigate the effect of diagonal bracing under small and medium earthquakes and dissipate energy to a certain extent.

show abstract

Seismic behavior of prefabricated reinforced concrete stair isolated by high damping rubber bearings

Cited by 8 publications

References 48 publications

Experimental and analytical studies of infill wall with sliding joints considering a door opening

Experimental and analytical studies of infill wall with sliding joints considering a door opening

Research on the Performance of Lightweight Prefabricated Concrete Stairs with a Special-Shaped Hollow Landing Slab

Experimental Study on the New Type of Connecting Nodes of Prefabricated Stairs Using Flexible Grouting Material

Contact Info

Product

Resources

About