A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention discloses a ladder adopting a sliding ladder beam. The ladder comprises a ladder beam and a ladder board movably arranged on the ladder beam, wherein a pedal formed by casting reinforced concrete is arranged on the ladder board. The ladder is characterized in that board reinforcing steel bars and plate bottom reinforcing steel bars in the ladder board the length direction of the ladder board, and the board reinforcing steel bars and plate bottom reinforcing steel bars penetrate through the ladder board in an overall length way. According to the ladder adopting the sliding ladder beam provided by the invention, the position, thickness and length of a cantilever plate at the lower end of the ladder can be adjusted to be applicable to ladders of various types, therefore the ladder is more flexible to arrange; by aiming at ladder sections of different spans, the safety and functional requirements of ladder sections of different spans can be met by adjusting the thickness and selection length of a bridging piece, calculating and distributing the reinforcing bars reasonably; in addition, aiming at the ladders of different intensities, the aseismic design requirements of the ladder can be met by rechecking the relative slippage among the ladder sections under major earthquake, and the relative slippage beams of the ladder sections under the major earthquake can be preserved.
The invention discloses a ladder adopting a sliding ladder beam. The ladder comprises a ladder beam and a ladder board movably arranged on the ladder beam, wherein a pedal formed by casting reinforced concrete is arranged on the ladder board. The ladder is characterized in that board reinforcing steel bars and plate bottom reinforcing steel bars in the ladder board the length direction of the ladder board, and the board reinforcing steel bars and plate bottom reinforcing steel bars penetrate through the ladder board in an overall length way. According to the ladder adopting the sliding ladder beam provided by the invention, the position, thickness and length of a cantilever plate at the lower end of the ladder can be adjusted to be applicable to ladders of various types, therefore the ladder is more flexible to arrange; by aiming at ladder sections of different spans, the safety and functional requirements of ladder sections of different spans can be met by adjusting the thickness and selection length of a bridging piece, calculating and distributing the reinforcing bars reasonably; in addition, aiming at the ladders of different intensities, the aseismic design requirements of the ladder can be met by rechecking the relative slippage among the ladder sections under major earthquake, and the relative slippage beams of the ladder sections under the major earthquake can be preserved.
Ladder adopting sliding ladder beam
2015-04-22
Patent
Electronic Resource
English
Cross Section Adopting old houses, Ladder safety
British Library Online Contents | 2001