|Table of Contents|

Research on seismic performance of new fully-assembled frame-shear structures(PDF)

长安大学学报（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2025年5期
Page:
92-104
Research Field:
桥梁与隧道工程
Publishing date:

Info

Title:
Research on seismic performance of new fully-assembled frame-shear structures
Author(s):
FAN Yu-jiang1;  ZHAO Yu-qi1;  XU Zi-xuan1;  YU Bin-shan2;  XIONG Er-gang3
(1. School of Architecture, Chang'an University, Xi'an 710061, Shaanxi, China; 2. School of Mechanics and Transportation Engineering, Northwestern Polytechnical University, Xi'an 710129, Shaanxi, China; 3. School of Civil Engineering, Chang'an University, Xi'an 710061, Shaanxi, China)
Keywords:
Key words:structural engineering;  new fully assembled frame-shear structure;  numerical simulation;  ultimate bearing capacity;  frictional energy dissipation;  seismic performance
PACS:
TU398.2
DOI:
10.19721/j.cnki.1671-8879.2025.05.008
Abstract:
A new type of fully assembled frame-shear wall structure was proposed based on the existing research foundation of seismic performance of new assembled shear wall. This structure can realize the function of equivalent cast-in-place under the action of small and medium earthquakes while consuming a large amount of seismic energy under large earthquakes. A new fully assembled frame-shear structure finite element model was established by ABAQUS software. The damage plasticity model was adopted for the constitutive model of concrete. The elastic-plastic constitutive model was adopted for steel bar and steel plate. The double broken line constitutive model was adopted for the bolt. Binding constraints were applied between concrete and steel plate components in the structure. Sufficient friction was provided by rotatable parts such as bolts, steel plates, etc. through application of surface contact and preload on bolts. The low-cycle reciprocating seismic performance was analyzed after the degree-of-freedom constraints were applied to the bottom of the structure. Under different axial compression ratios and bolt preloads, the changing law of seismic performance of this new structure was analyzed. The results show: the designed new fully-assembled frame-shear structure is able to meet the requirements of the code ultimate load carrying capacity, and the energy consumption effect is good. None of the horizontal connections is broken before the structure reaches its ultimate load capacity. The greater the axial compression ratio at the top of the shear walls and columns, the higher the structural load carrying capacity. When the structure is rotated to the limit, the hysteresis curve pinches and shrinks significantly, and the equivalent viscous damping coefficient decreases significantly. The energy dissipation capacity of the structure under the same horizontal displacement is linearly related to the applied bolt preload.5 tabs, 13 figs, 20 refs.

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Last Update: 2025-09-30