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这种菜窖的结构特点是节约木材、减小断面、拆装方便,现介绍如下:一、适用范围:本菜窖适用于北京及其条件相同的地区。二、窖的平面剖图如下: 三、窖的几何尺寸:窖宽:4米、5米、6米三种。窖长:按十个开间设计,每个开间长3.3米。也可按实际需要决定开间数量。窖高:有2.3米、3米两种。四、荷重:窖顶复土厚取18厘米(土的容重r=1600公斤/米~3)秫秸厚 15厘米(秫秸容重r=300公斤/米~3)其计算如下:活荷重 50公斤/米~2静荷重、复土重0.18×1600=288公斤/米~2秫秸重0.15×300=45公斤/米~2试 333公斤/米~2五、承重骨架:菜窖的主要承重结构是由圆钢管柱支承着工字钢横梁,横梁上搁置钢檩条。窖顶的荷重是通过钢檩条传给横梁,横梁再传给柱,最后由柱传给基础。六、经济比较1.檩条:设计中对檩条作了槽钢、两个角钢焊接式,薄壁槽钢、平面桁架式四种檩条方案,檩距为0.5
The structural characteristics of this vegetable cellar are to save wood, reduce sections, and facilitate assembly and disassembly. The introduction is as follows: 1. Scope of application: This vegetable cellar is suitable for Beijing and its conditions. Second, the cellar plane section as follows: Third, the cellar geometry: cellar width: 4 meters, 5 meters, 6 meters three. Cellar length: According to ten bays, each bay is 3.3 meters long. The number of rooms can also be determined according to actual needs. Cellar height: 2.3 meters and 3 meters. Fourth, the load: cellar complex soil take 18 cm (land weight r = 1600 kg / m ~ 3) stalk thickness 15 cm (grass straw weight r = 300 kg / m ~ 3) Its calculation is as follows: Active load 50 kg / M ~ 2 static load, complex earth weight 0.18 × 1600 = 288 kg / m ~ 2 秫 weighs 0.15 × 300 = 45 kg / m ~ 2 test 333 kg / m ~ 2 5, load-bearing skeleton: the main load-bearing structure of the cellar is The I-beam crossbeam is supported by a round steel column, and the steel beam is placed on the crossbeam. The load on the cellar roof is transmitted to the beam through the steel beam, the beam is transmitted to the column, and finally transmitted from the column to the foundation. 6. Economic Comparison 1. The purlin string: In the design, the purlin was made with channel steel, two angle welded, thin-walled channel steel, and plane truss four types of purlin project. The pitch distance was 0.5.