朱彦鹏     王秀丽
    （甘肃工业大学建筑工程学院  兰州 730050）

[提要]  结合甘肃省自行车赛场跑道下砖房墙体大面积开裂的实际工程，经现场测试和分析，确定了裂缝产生的原因，计算了墙体中由于温度引起的主拉应力和赛道下砖房由于温度变化引起的赛道与砖墙之间及构造柱与砖墙之间产生的膨胀差，结果证明这些裂缝是由温度引起的，排除了沉降产生裂缝的可能性，并由此给出了砖混结构的1些抗裂设计建议，供设计人员参考。
[关键词]  自行车赛场  跑道下砖房  墙体裂缝分析  处理

Combined with the brick wall crack under the track of the cycle racing arena for Gansu province, and after the test and analysis, reason of the crack is determined. The main pull stress of the wall that is caused by the temperature difference between the track and the brick wall and the expansion difference between structure column and the brick wall is calculated. Some suggestions of the resisting remperature crack design about brick and concrete structures are given that may be reference to designers.
Keywords:  cycle racing arena; brick house;  track; wall; crack; analysis; treatment