Abstract: A method for calculating a bending moment resistance of an internal unbonded post-tensioned composite beam with corrugated steel webs (CSWs) and a double-concrete-filled steel tube (CFST)lower flange includes: determining a degradation law of sectional flexural rigidity of the internal unbonded post-tensioned composite beam with CSWs and a double-CFST lower flange based on numerical analysis, and establishing a sectional flexural rigidity degradation model of the composite beam. The method can include segmenting a bending moment diagram of the composite beam based on the sectional flexural rigidity degradation model, and establishing a segmented integral equation of IUPS strain increment. The method can include establishing an equilibrium equation of force and a bending moment by considering contributions of concrete, the steel tubes, the upper steel flange, the IUPSs, and reinforcement in the composite beam.

Abstract: Disclosed are a steel-concrete composite web and a construction method thereof, and relate to the field of bridge engineering. The steel-concrete composite web comprises a plurality of prefabricated web segments connected in sequence, wherein each prefabricated web segment comprises a corrugated steel web and a concrete encasement, each concrete encasement is arranged on the inner side of the corresponding corrugated steel web. The right and left edges of adjacent corrugated steel web segments are connected, and a pouring space is formed between adjacent concrete encasements; and each concrete encasement is provided with joint reinforcing rebars used for stretching into the pouring space, first concrete is poured into the pouring space to form a cast-in-place wet joint, and the joint reinforcing rebars are embedded into the cast-in-place wet joint.

Abstract: The present invention discloses an assembly structure for building block puzzle and building block toys. The assembly structure for building block puzzle includes a movable building block constructing piece and a constructing base, the movable building block constructing piece is supported on the constructing base by an elastic member, the elastic member achieves compression under an effect of an external pressure which acts on the movable building block constructing piece and the constructing base, and makes the movable building block constructing piece and the constructing base move relatively close to each other, and when the external pressure disappears, the elastic member supports the movable building block constructing piece by a pre-pressure. The present invention has a simple and ingenious structure which is easy to produce with low cost.

Abstract: A water-saving management system for a sanitary facility and a water-saving management method for a sanitary facility are provided. A control device is connected to flush valves corresponding to sanitary facilities of one or more sanitary spaces. The control device outputs flush-associated data to a local server via a transmission network. The local server receives the flush-associated data and transfers mode setting data via the transmission network. The control device sets a flush mode according to the mode setting data, so as to flush the sanitary facilities.

Abstract: A method processes vocal sounds captured by a sound capture device of an electronic device. The captured vocal sounds are divided into a plurality of sound segments, and a zero-crossing rate (ZCR) and amplitude of each of the sound segments are obtained. If one or more breathing sound segments are detected to be included in the captured vocal sounds according to the ZCR and the amplitude of each of the sound segments, the captured vocal sounds are processed to decrease the amplitude of the one or more breathing sound segments.