Steel Buildings in Europe

Part 4: Detailed Design of Portal Frames 4 - 69 APPENDIX A Practical deflection limits for single-storey buildings A.1 Horizontal deflections for portal frames Figure A.1 Definition of horizontal deflection Horizontal deflection limits for portal frame structures are not explicitly covered in the structural Eurocodes. Generally, limits are set nationally, either by regulation or by accepted industry practice. Typical limiting values for horizontal deflection are given in Table A.1.