题目内容
已知外纵墙的窗间墙截面为1200mm×240mm，采用蒸压灰砂砖 MU10和M5的混合砂浆砌筑，钢筋混凝土大梁截面尺寸b×h=250mm×600mm，在梁端设置650mm×240mm×240mm预制垫块。由荷载设计值所产生的支座反力80kN，上部传来作用在梁底窗间墙截面上荷载设计值为50kN。
垫块外砌体面积的有利影响系数与______项数值最为接近。
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受压区总预应力损失值为130N/mm2，受拉区总预应力损失值为246N/mm2，张拉控制应力同上题，使用阶段截面下边缘混凝土的预压应力与______项数值最为接近。
某工字形截面牛腿与工字形柱的翼缘焊接如图，牛腿翼缘板与柱用对接焊缝连接；腹板用角焊缝连接，hf=8mm。已知牛腿与柱的连接截面承受的荷载设计值：剪力V=470kN，弯矩M=235kN·m。钢材为Q235-B。手工焊，E4315型焊条，二级焊缝。
对接焊缝的宽度b=200mm，按强度设计值换算成角焊缝等效宽度为______mm。
已知梁的短期刚度Bs=2.310×104N·mm，则梁的跨中按荷载标准组合，并考虑荷载长期作用影响的挠度与______项数值最为接近。
The fact that blind people can "see" things using other parts of their bodies apart from their eyes may help us to understand our feelings about color. If they can【B1】color differences, then perhaps we, too, are affected by【B2】unconsciously.
Manufacturers have discovered by【B3】that sugar sells badly in green wrap pings,【B4】blue foods are considered unpleasant, and the cosmetics should never be packaged【B5】brown. These discoveries have grown【B6】a whole discipline of color psychology that now finds【B7】in everything from fashion to interior decoration. Some of our【B8】are clearly psychological. Dark blue is the color of the night sky and【B9】associated with passivity and calm, while yellow is a day color with【B10】of energy and incentive. For primitive msn, activity during the day【B11】hunting and attacking, while he soon saw as red, the color of blood and rage and the heat that came【B12】effort. And green is associated with passive【B13】and self preservation. Experiments have【B14】that green, partly because of its【B15】associations, also has a direct psychological【B16】, it is a calming color. Because of its exciting connotations, red was chosen as the signal for danger.【B17】closer analysis shows that a vivid yellow can produce a【B18】basic state of alertness and【B19】, so fire engines and ambulances in some advanced communities are now【B20】around in bright yellow color.
【B1】
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