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《《涵洞内力计算》word版》由会员上传分享,免费在线阅读,更多相关内容在应用文档-天天文库。
1、路涵内力配筋计算计算书2007年5月路涵内力配筋计算一、工程概况及计算成果本路涵共1座,1座2孔,每孔净空2.0m,高度为2.30m,顶板厚0.40m,底板厚0.50m,侧板厚0.40m,中板厚0.30m。详见图1。选筋结果见表一:表一选筋结果名称选筋结果上层下层外层内层顶板Φ20@150Φ16@150底板Φ16@150Φ20@150侧板Φ12@150Φ12@150中板Φ12@150Φ12@150二、基本资料及计算简图1.计算简图如下:图1路涵断面图基本数据:;涵洞埋深;回填土要夯实,。三、计算工况1.完建工况,涵洞内无水,地下水位
2、距离地面3.9m;2.运行工况,涵洞内有水,地下水位距离地面1.2m;汽车荷载为汽20;-7-3.校核工况,涵洞内有水,地下水位距离地面1.2m,汽车荷载为挂100;四、荷载计算各杆荷载的计算:汽车荷载为汽20时,后轮轮压P=240KN,后轮轮宽d=0.6m。汽车荷载为挂100,后轮轮压P=600KN,后轮轮宽d=0.6m。采用公式1.完建工况2.运行工况3.校核工况-7-五、内力计算简图内力采用理正工具箱(网络版)计算1.完建工况-7-2.运行工况3.校核工况-7-综上所述,工况3为最危险工况,所以配筋计算采用工况3内力进行配筋五
3、、配筋计算配筋计算采用理正工具箱(网络版)计算。砼C25,fc=12.50N/mm2,受力筋Ⅱ级,fy=310N/mm2,分布筋Ⅰ级,fy=210N/mm2。取单位长度1m计算。计算要求:1.正截面受弯承载力计算2.斜截面受剪承载力计算3.裂缝宽度计算。1、底板杆端弯矩设计值M=172.10kN.m,剪力设计值V=379.00kN,扭矩设计值T=0.00kN.m。计算结果:(1)截面验算:V=379.00kN<0.250fcbh0/γd=1197.92kN截面满足(2)上部受力筋:Φ16@150(1341mm2ρ=0.29%)>As
4、=920mm2满足(3)下部受力筋:Φ20@150(2094mm2ρ=0.45%)>As=1510mm2满足(4)分布筋:d8@150(335mm2/mρsv=0.03%)>Asv/s=285.7mm2/m截面满足(5)裂缝宽度:Wmax=0.217mm5、=0.29%)>As=956mm2满足-7-(3)下部受力筋:Φ16@150(1341mm2ρ=0.37%)>As=720mm2满足(4)分布筋:d8@150(335mm2/mρsv=0.03%)>Asv/s=285.7mm2/m截面满足(5)裂缝宽度:Wmax=0.219mm6、Φ12@150(754mm2ρ=0.21%)>As=720mm2满足(3)内侧受力筋:Φ12@150(754mm2ρ=0.21%)>As=696mm2满足(4)分布筋:d8@150(335mm2/mρsv=0.03%)>Asv/s=246.2mm2/m截面满足(5)裂缝宽度:Wmax=0.186mm7、)外侧受力筋:Φ12@150(754mm2ρ=0.21%)>As=720mm2满足(3)内侧受力筋:Φ12@150(754mm2ρ=0.21%)>As=540mm2满足(4)分布筋:d8@150(335mm2/mρsv=0.03%)>Asv/s=246.2mm2/m截面满足(5)裂缝宽度:Wmax=0.069mm8、(754mm2ρ=0.28%)>As=530mm2满足要求(3)分布筋:d8@150(335mm2/mρsv=0.03%)>Asv/s=200mm2/m截面满足4、顶板杆端弯矩设计值M=-133.10kN.m,剪力设计值V=-330.
5、=0.29%)>As=956mm2满足-7-(3)下部受力筋:Φ16@150(1341mm2ρ=0.37%)>As=720mm2满足(4)分布筋:d8@150(335mm2/mρsv=0.03%)>Asv/s=285.7mm2/m截面满足(5)裂缝宽度:Wmax=0.219mm6、Φ12@150(754mm2ρ=0.21%)>As=720mm2满足(3)内侧受力筋:Φ12@150(754mm2ρ=0.21%)>As=696mm2满足(4)分布筋:d8@150(335mm2/mρsv=0.03%)>Asv/s=246.2mm2/m截面满足(5)裂缝宽度:Wmax=0.186mm7、)外侧受力筋:Φ12@150(754mm2ρ=0.21%)>As=720mm2满足(3)内侧受力筋:Φ12@150(754mm2ρ=0.21%)>As=540mm2满足(4)分布筋:d8@150(335mm2/mρsv=0.03%)>Asv/s=246.2mm2/m截面满足(5)裂缝宽度:Wmax=0.069mm8、(754mm2ρ=0.28%)>As=530mm2满足要求(3)分布筋:d8@150(335mm2/mρsv=0.03%)>Asv/s=200mm2/m截面满足4、顶板杆端弯矩设计值M=-133.10kN.m,剪力设计值V=-330.
6、Φ12@150(754mm2ρ=0.21%)>As=720mm2满足(3)内侧受力筋:Φ12@150(754mm2ρ=0.21%)>As=696mm2满足(4)分布筋:d8@150(335mm2/mρsv=0.03%)>Asv/s=246.2mm2/m截面满足(5)裂缝宽度:Wmax=0.186mm7、)外侧受力筋:Φ12@150(754mm2ρ=0.21%)>As=720mm2满足(3)内侧受力筋:Φ12@150(754mm2ρ=0.21%)>As=540mm2满足(4)分布筋:d8@150(335mm2/mρsv=0.03%)>Asv/s=246.2mm2/m截面满足(5)裂缝宽度:Wmax=0.069mm8、(754mm2ρ=0.28%)>As=530mm2满足要求(3)分布筋:d8@150(335mm2/mρsv=0.03%)>Asv/s=200mm2/m截面满足4、顶板杆端弯矩设计值M=-133.10kN.m,剪力设计值V=-330.
7、)外侧受力筋:Φ12@150(754mm2ρ=0.21%)>As=720mm2满足(3)内侧受力筋:Φ12@150(754mm2ρ=0.21%)>As=540mm2满足(4)分布筋:d8@150(335mm2/mρsv=0.03%)>Asv/s=246.2mm2/m截面满足(5)裂缝宽度:Wmax=0.069mm8、(754mm2ρ=0.28%)>As=530mm2满足要求(3)分布筋:d8@150(335mm2/mρsv=0.03%)>Asv/s=200mm2/m截面满足4、顶板杆端弯矩设计值M=-133.10kN.m,剪力设计值V=-330.
8、(754mm2ρ=0.28%)>As=530mm2满足要求(3)分布筋:d8@150(335mm2/mρsv=0.03%)>Asv/s=200mm2/m截面满足4、顶板杆端弯矩设计值M=-133.10kN.m,剪力设计值V=-330.
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