Cold bending is a characteristic of significance for the beautiful curved glass curtain walls, because it affects them in terms of energy-efficiency and cost-efficiency. The increasing engineering projects call for more special studies on the mechanical properties of cold-bent glass panels, especially when the walls are built by insulating glass that is currently widely used while its relevant research is very scarce. This paper is devoted to studying the mechanical properties of anticlastic cold-bent insulating glass while taking different factors into consideration, including glass thickness, cold-bent torsion rate and cavity thickness. 9 pieces of insulating glass were manufactured for anticlastic cold-bending test and their coupled effect with identical load is also studied, and numerical finite element analysis sessions were carried out to simulate the experimental results for each one of them. Further, we analyzed the stress distribution performance of the sample pieces under cold bending and a uniform load, followed by discussions about stress transfer controls in glass plates. The results showed that the cold-bent control stress is on the surface with direct loads from cold bending and close to the cold-bent corner on the short edge, and it is transferred from the parts around the corner to the center when the uniform load plays a leading role in generating stress. This transfer could occur under a relatively small load with a small cold-bent torsion rate. A higher cold-bent torsion rate in cold bending contributed mostly to greater center stress in the glass, and as the glass thickness grows, stress and deflection at the plate center would significantly drop. However, the effect of cavity thickness on the anticlastic mechanical response of insulating glass was found to be trivial.

In this paper, the author studied the bending vibration of circular column partially submerged in water.An equation of frequency and an exact solution of corresponding function of vibrational modes are given, it points out that the effect of water is equivalent to an attached distributive mass Therefore the frequency with water is lower than that without water * Communicated by Chien Wei-zang. = dl 'three ordinary differential equations:Z"(z)-Fm2Z(z) = 0(2.7)<~" ~0) +,6t-)t0) = 0 (2.8)

ThL~ paper studies the free bending vibration of elliptical column partialy submerged in water. It is the first time that we get an exact solution of the function of normal mode of vibretion of column-water couple system and a corresponding frequency equation denoted by limited order determinant. It points out that the effect of water is equivawnt to an attached distributive mass. Therefore, the frequency with water is lower than that without wager.

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In order to study the temperature strain of the insulating tempered glass under certain cold bending test, cold bending test and temperature test were carried out on the glass plate. Taking the self-made cold-formed steel frame as the tool and the hollow laminated tempered glass as the object, the cold bending test of the glass was carried out. The results show that the stress of each measuring point increases linearly with the increase of cold bending displacement, and the maximum principal stress appears at the end of the loader near the loading point of the outer sheet glass. The temperature changes test of the glass shows that the stress of each measuring point is linear with the increase in temperature difference. The results show that the maximum principal stress appears near the constrained angle steel on the displacement side of the upper edge of the outer sheet glass; the stress changes greatly during the short-term cooling test, and the tensile and compressive stresses transform each other. The internal stress produced by cold bending is coupled with the maximum principal stress produced by temperature load, and the maximum principal stress appears at the lower edge constraint of the loading displacement side.