## 1 Introduction  
High-strength bolt connection is the main connection mode of prefabricated steel structures, and it is widely applied in practical engineering because of its advantages of convenient installation, easily ensuring the construction quality, and high construction efficiency. On-site bolt connection is fast and convenient, but fatigue damage of the bolt nodes will occur under the action of long-term repeated load, so the fatigue performance of bolt nodes cannot be ignored. Since the German engineer [PERSON] proposed the fatigue problem as early as 1829, many scholars have paid attention to it and studied it [1], and different studies on structures' fatigue problems are gradually appearing, especially considering different kinds of factors such as structural details, structure materials, etc. [2; 3; 4; 5; 6; 7; 8; 9]. So, the fatigue problem of high-strength bolt connection is also being paid more and more paid attention. [PERSON] et al. conducted fatigue test research on high-strength bolts, putting forward the effect of stress concentration on the fatigue performance [10]; [PERSON] et al. have carried out a lot of test and theory research on high-strength bolts' fatigue problems, and the stress concentration coefficient of M14, M20, M24, M30, M33, M39, M36, M52, M60 was established; the S-N curve was obtained by unified regression analysis; the corresponding constant fatigue design method was established; and the variable fatigue life was estimated with the help of Corten-Dolan theory [11]. [PERSON] et al. fitted the fatigue crack extension rate of S355 and S690 steel by the Walker formula, and the average stress effect was included, based on which random analysis was conducted by the Monte Carlo method, and it was concluded that the guaranteed rate of fatigue crack expansion parameters of steel is 95%, 97.7%, and 99%, respectively [12]. [PERSON] et al. carried out static analysis of high-strength bolt joints and metallographic analysis of fatigue fracture through a constant amplitude fatigue test, and in 2021 completed the constant amplitude fatigue test of 21 M24 high-strength large hexagon head bolts made of 35K steel and of grade 8.8 with an MTS fatigue tester [13]. [PERSON] carried out the constant amplitude fatigue test of 14 M24 high-strength large hexagon head bolts with the help of an MTS fatigue testing machine [14]. [PERSON] et al. analyzed the fatigue performance of the Q690D high-strength steel bolt connection through the fatigue test, and fitted the S-N curve according to the test data, deducing the fatigue injury formula through the test data [15]. [PERSON] et al. developed a general lumped damage simulation model for predicting the fatigue damage life-cycle and the associated crack propagation in the full range of elastic and plastic amplitudes [16]. [PERSON] et al. analyzed the relationship among defects, fatigue strength, and fatigue curves to extrapolate the probabilistic fatigue curves for AM materials [17]. [PERSON] et al. proposed a new probabilistic fatigue model for life assessment by combining the weakest link theory with the strain energy concept, and utilized experimental data of GH4169, TC4, and TC11 alloys with different geometries to carry out model validation and comparison [18]. However, most fatigue studies are focused on high-strength bolts with a grid structure. Currently, there is little research about sudden fatigue failure of a fabricated steel structure buildings Therefore, on the basis of previous research on the fatigue failure type and mechanism of the steel structure, we carried out constant amplitude fatigue tests on the M24 twisted-shear high-strength bolts used in the fabricated steel structure residence. In the study, the nodes between the beam and the column of the fabricated steel structure fully apply twisted-shear high-strength bolts. It is the study prerequisite that the full pretension force was applied to the twisted-shear high-strength bolts before the experiment.